Stow Lawn Mower STR46SP User Manual

OPERATION AND PARTS MANUAL  
STR46SP  
RIDE-ON POWER TROWEL  
Revision #1 (08/01/06)  
THIS MANUAL MUST ACCOMPANY  
THE EQUIPMENT AT ALLTIMES.  
To find the latest revision of this  
publication, visit our website at:  
P/N 21826  
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WARNING WARNING  
SILICOSIS WARNING  
RESPIRATORY HAZARDS  
Grinding/cutting/drilling of masonry, concrete, metal and  
other materials with silica in their composition may give  
off dust or mists containing crystalline silica. Silica is a  
basic component of sand, quartz, brick clay, granite and  
numerous other minerals and rocks. Repeated and/or  
substantial inhalation of airborne crystalline silica can  
cause serious or fatal respiratory diseases, including  
silicosis. In addition, California and some other  
authorities have listed respirable crystalline silica as a  
substance known to cause cancer. When cutting such  
materials, always follow the respiratory precautions  
mentioned above.  
Grinding/cutting/drilling of masonry, concrete, metal and  
other materials can generate dust, mists and fumes  
containing chemicals known to cause serious or fatal  
injury or illness, such as respiratory disease, cancer,  
birth defects or other reproductive harm. If you are  
unfamiliar with the risks associated with the particular  
process and/or material being cut or the composition of  
the tool being used, review the material safety data  
sheet and/or consult your employer, the material  
manufacturer/supplier, governmental agencies such as  
OSHA and NIOSH and other sources on hazardous  
materials. California and some other authorities, for  
instance, have published lists of substances known to  
cause cancer, reproductive toxicity, or other harmful  
effects.  
Control dust, mist and fumes at the source where  
possible. In this regard use good work practices and  
follow the recommendations of the manufacturers or  
suppliers, OSHA/NIOSH, and occupational and trade  
associations. Water should be used for dust  
suppression when wet cutting is feasible. When the  
hazards from inhalation of dust, mists and fumes cannot  
be eliminated, the operator and any bystanders should  
always wear a respirator approved by NIOSH/MSHA for  
the materials being used.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 3  
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STR46SP TABLE OF CONTENTS  
Proposition 65 Warning ............................................. 2 Steering Handles Assembly (Right/Left) ............50-51  
Respiratory/Silicosis Warnings .................................. 3 Steering Assist Control Assembly (Right/Left) ...52-53  
Table of Contents ...................................................... 4 Gearbox Assembly (Right).................................54-55  
Parts Ordering Procedures ....................................... 5 Gearbox Assembly (Left) ...................................56-57  
Training Checklist ...................................................... 6 Single Pitch Handle Assembly (Right/Left) ........58-59  
Daily Pre-Operation Checklist ................................... 7 Drive Assembly ..................................................60-61  
Safety Message Alert Symbols .............................. 8-9 Engine/Muffler/Belt Assembly ............................62-63  
Rules For Safe Operation ..................................10-13 Air Cleaner/Oil Filter/Oil Cleaner Assembly .......64-65  
V-Belt Cover/Outer Muffler Shield Assembly .....66-67  
Spider Assembly (Right) ....................................68-69  
Spider Assembly (Left).......................................70-71  
STOW — STR46SP RIDE-ON  
POWER TROWEL  
Yoke Assembly ...................................................72-73  
Throttle Cable/Foot Pedals Assembly................74-75  
Control Panel Assembly .....................................76-77  
Fuel Assembly....................................................78-79  
Battery Assembly ...............................................80-81  
Seat Frame Assembly ........................................82-83  
Operation And Safety Decals.................................. 14  
Specifications .......................................................... 15  
Engine Specifications .............................................. 16  
General Information ................................................ 17  
Controls and Indicators ......................................18-19  
Basic Engine ........................................................... 20  
New Machine Setup Instructions ............................ 21  
Initial Start-Up ......................................................... 22  
Operation ...........................................................23-24  
Maintenance ......................................................25-38  
Engine Troubleshooting......................................39-40  
Troubleshooting (Trowel) ...................................41-42  
Explanation of Code in Remarks Column ............... 44  
Suggested Spare Parts ........................................... 45  
Nameplate and Decals.......................................46-47  
Pivot Assembly (Right/Left)................................48-49  
Terms and Conditions of Sale ................................. 84  
Specifications and part numbers  
are subject to change without  
notice.  
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STR46SP — PARTS ORDERING PROCEDURES  
When ordering parts,  
please supply the following information:  
Dealeraccountnumber  
Dealernameandaddress  
Shipping address (if different than billing address)  
Returnfaxnumber  
Applicable model number  
Quantity,part number and description of each part  
Specifypreferredmethodofshipment:  
FedEx or UPS Ground  
FedEx or UPS Second Day or Third Day  
FedEx or UPS Next Day  
Federal Express Priority One  
DHL  
Note:Unlessotherwiseindicatedbycustomer, all  
orders are treated as “Standard Orders”, and will  
ship within 24 hours.We will make every effort to  
ship “Air Shipments” the same day that the order is  
received, if prior to 2PM west coast time. “Stock  
Orders” must be so noted on fax or web forms.  
Truck  
Place Your Parts Order Via Web or Fax  
For Even More Savings!  
Here’s how to get help...  
Please have the model and serial number  
on hand when calling.  
(Domestic USA Dealers Only)  
STOW MAIN OFFICE  
18910 Wilmington Ave.  
Carson, CA 90746  
800-421-1244  
FAX: 310-537-3927  
Extra Discounts!  
All parts orders which include complete part numbers and  
are received by our automated web parts order system, or  
by fax qualify for the following extra discounts:  
Ordered  
via  
Standard  
orders  
Stock orders  
SALES DEPARTMENT  
310-661-4242  
877-289-7869 (877-BUY-STOW)  
PARTS DEPARTMENT  
800-427-1244  
310-537-3700  
SERVICE DEPARTMENT  
800-478-1244  
310-537-3700  
TECHNICAL ASSISTANCE  
800-478-1244  
($750 list and above)  
Fax: 310-604-9237  
Fax  
3%  
5%  
10%  
10%  
Web  
FAX: 800-672-7877  
FAX: 310-637-3284  
Special freight allowances  
when you order 10 or more  
line items via Web or Fax!**  
FedEx Ground Service at no charge for freight  
No other allowances on freight shipped by any other  
carrier.  
FAX: 310-537-4259  
FAX: 310-631-5032  
FAX: 310-537-1173  
WARRANTY DEPARTMENT  
800-421-1244, EXT. 279  
310-537-3700, EXT. 279  
**Common nuts, bolts and washers (all items under $1.00  
list price) do not count towards the 10+ line items.  
NOTE:DISCOUNTSARESUBJECTTOCHANGE  
Direct TOLL-FREE access  
to our Parts Department:  
STOWCONSTRUCTIONEQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
Toll-free nationwide — 800-427-1244  
POST OFFICE BOX 6254  
888-252-STOW[888-252-7869]  
FAX:310-537-1986  
CARSON, CA 90749  
310-537-3700  
FAX:800-556-1986  
INTERNET:www.stowmfg.com  
Toll-free FAX — 800-6-PARTS-7 (800/672-7877)  
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STR46SP — TRAINING CHECKLIST  
TRAINING CHECKLIST  
This checklist lists some of the minimum requirements for machine operation. Please feel free to make copies for daily use. Use this  
checklist when training a new operator or use as a review for more experienced operators.  
TRAINING CHECKLIST  
NO.  
DESCRIPTION  
Read Operator’s Manual completely.  
OK?  
DATE  
1
Machine layout, location of components, checking of engine and  
fluid levels.  
2
3
4
Fuel system, refueling procedure.  
Operation of spray and lights.  
Operation of controls (machine not running).  
Safety controls, Safety Stop Switch operation.  
Emergency stop procedures.  
Startup of machine.  
5
6
7
8
9
Maintaining a hover.  
10  
11  
Maneuvering.  
Pitching.  
Matching blade pitch between towers Twin Pitch™, disengaging the  
linkage. (Models with Twin Pitch™ option only.)  
12  
13  
14  
15  
16  
Concrete finishing techniques.  
Shutdown of machine.  
Lifting of machine (lift loops).  
Machine transport and storage.  
Operator _________________________________________ Trainee __________________________________________  
COMMENTS:  
PAGE 6 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 6  
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STR46SP — DAILY PRE-OPERATION CHECKLIST  
DAILY PRE-OPERATION CHECKLIST  
DAILY PRE-OPERATION CHECKLIST  
1
2
3
4
5
6
7
8
Engine Oil Level.  
Gearbox Fluid Level  
.
Radiator Coolant Level.  
Condition of Blades  
.
Blade Pitch Operation.  
Safety-Stop Switch Operation.  
Steering Control Operation.  
Condition of Belts.  
COMMENTS:  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 7  
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STR46SP — SAFETY MESSAGE ALERT SYMBOLS  
HAZARD SYMBOLS  
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!  
Safety precautions should be followed at all times when  
operating this equipment. Failure to read, understand and  
comply with the Safety Messages and Operating Instructions  
could result in injury to yourself and others.  
Lethal Exhaust Gases  
Engine exhaust gases contain poisonous  
carbon monoxide. This gas is colorless and  
odorless, and can cause death if inhaled.  
NEVER operate this equipment in a confined  
area or enclosed structure that does not  
provide ample free flow air.  
This Operation Manual has been  
developed to provide instructions for the  
safe and efficient operation of the STR46 -  
Series Ride-On Trowel. For engine  
maintenance information, please refer to the  
engine manufacturer's instructions for data  
relative to its safe operation.  
Explosive Fuel  
Before using this Ride-OnTrowel, ensure that the operating  
individual has read, understands, and complies with all  
instructions in this manual.  
Gasoline is extremely flammable, and its  
vapors can cause an explosion if ignited. DO  
NOT start the engine near spilled fuel or  
combustible fluids. DO NOT fill the fuel tank  
while the engine is running or hot. DO NOT  
overfill tank, since spilled fuel could ignite if it  
comes into contact with hot engine parts or  
sparks from the ignition system. Store fuel in  
approved containers, in well-ventilated areas  
and away from sparks and flames. NEVER  
use fuel as a cleaning agent.  
SAFETY MESSAGE ALERT SYMBOLS  
The three (3) Safety Messages shown below will inform you  
about potential hazards that could injure you or others. The  
Safety Messages specifically address the level of exposure to  
the operator, and are preceded by one of three words: DANGER,  
WARNING, or CAUTION.  
Burn Hazards  
DANGER  
You WILL be KILLED or SERIOUSLY INJURED  
if you DO NOT follow these directions.  
Engine components can generate extreme heat.  
To prevent burns, DO NOT touch these areas  
while the engine is running or immediately after  
operations. NEVER operate the engine with  
heat shields or heat guards removed.  
WARNING  
You CAN be KILLED or SERIOUSLY INJURED if  
you DO NOT follow these directions.  
Rotating Parts  
NEVER operate equipment with covers, or  
guards removed. Keep fingers, hands, hair  
and clothing away from all moving parts to  
prevent injury.  
CAUTION  
You CAN be INJURED if you DO NOT follow  
these directions.  
Potential hazards associated with trowel operation will be  
referenced with Hazard Symbols which appear throughout this  
manual, and will be referenced in conjunction with Safety  
Message Alert Symbols.  
PAGE 8 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 8  
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STR46SP — SAFETY MESSAGE ALERT SYMBOLS  
Accidental Starting  
Respiratory Hazard  
Accidental starts can cause severe injury or death. ALWAYS  
place the ON/OFF switch in the OFF position. Disconnect and  
ground spark plug lead and disconnect negative battery cable  
from battery before servicing.  
ALWAYS wear approved respiratory  
protection.  
Sight and Hearing hazard  
ALWAYS wear approved eye and hearing  
protection.  
Over Speed Conditions  
NEVER tamper with the factory settings of the  
engine governor or settings. Personal injury  
and damage to the engine or equipment can  
result if operating in speed ranges above  
maximum allowable.  
Equipment Damage Messages  
Other important messages are provided throughout this manual  
to help prevent damage to your trowel, other property, or the  
surrounding environment.  
CAUTION  
This Ride-On trowel, other property, or the  
surrounding environment could be damaged if you do  
not follow instructions.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 9  
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STR46SP — RULES FOR SAFE OPERATION  
NEVER operate this equipment when not feeling well due to  
fatigue, illness or taking medicine.  
RULES FOR SAFE OPERATION  
NEVER operate the trowel under the influence of drugs or  
WARNING  
alcohol.  
Failure to follow instructions in this manual may lead to serious  
injury or even death! This equipment is to be operated by  
trained and qualified personnel only! This equipment is for  
industrial use only.  
Replace nameplate, operation and safety decals when they  
become difficult to read.  
ALWAYS check the trowel for loosened hardware such as  
nuts and bolts before starting.  
The following safety guidelines should always be used when  
operating the STR46SP Ride-OnTrowel.  
NEVERtouchthehotexhaustmanifold, muffler  
or cylinder. Allow these parts to cool before  
servicing the trowel. Contact with hot!  
components can cause serious burns.  
SAFETY  
DO NOT operate or service this  
equipment before you read, understand,  
and comply with all safety messages in  
this manual. The manual must be kept  
available and accessible to the operator.  
The engine of this trowel requires an adequate free flow of  
cooling air. NEVER operate the trowel in any enclosed or  
narrow area where free flow of  
the air is restricted. If the air flow  
This equipment should not be operated by persons under the  
minimum statutory age limit.  
is restricted it will cause serious  
damage to the engine and may  
cause injury to people.  
Remember the engine gives off  
DEADLY carbon monoxide  
gas.  
NEVER use this machine for any purpose other than those  
described in this manual.  
NEVER operate the trowel without proper protective clothing,  
shatterproof glasses, steel-toed boots and other protective  
devices required for the job.  
ALWAYS refuel in a well-ventilated area, away from sparks  
and open flames.  
Topping-off to filler port is dangerous, as it tends to spill fuel.  
NEVER use fuel as a cleaning agent.  
ALWAYS use extreme caution when working with flammable  
liquids. When refueling, STOP the engine. Allow the engine  
to cool before adding fuel or performing service and  
maintenance functions.  
NEVER operate the trowel in an  
explosive atmosphere where fumes  
are present, or near combustible  
materials. An explosion or fire could  
result in severe bodily harm or even  
death.  
NEVER use accessories or attachments which are not  
recommended by the manufacturer for this equipment.  
Damage to the equipment and/or injury to user may result.  
Manufacturer does not assume responsibility for any accident  
due to equipment modifications. Unauthorized equipment  
modification will void all warranties. Any modification which  
could lead to a change in the original characteristics of the  
machine should be made only by the manufacturer who shall  
confirm that the machine is in conformity with appropriate  
safety regulations.  
NEVER smoke around or near the machine.  
Fire or explosion could result from fuel  
vapors, or if fuel is spilled on a hot! engine.  
PAGE 10 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 10  
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STR46SP — RULES FOR SAFE OPERATION  
NEVER run engine without air filter. Severe engine damage  
may occur. Service air filter frequently to prevent carburetor  
malfunction.  
DANGER  
Pay close attention to ventilation when  
operating the trowel in confined spaces  
such as tunnels, buildings or similar areas.  
The engine exhaust contains harmful  
elements. Ensure proper air flow to move  
engine exhaust away from the operator.  
NEVER place your feet or hands inside the guard rings  
while starting or operating this equipment.  
AVOID wearing jewelry or loose fitting clothing that may snag  
on the controls or moving parts as this can cause a serious  
injury.  
ALWAYS keep clear of rotating or moving parts while  
operating the trowel.  
Moving Parts – Shut down the engine before performing  
service or maintenance functions. Contact with moving parts  
can cause serious injury.  
Lifting the Ride-On Trowel  
CAUTION  
This ride-on trowel is very heavy and awkward to move  
around. Use proper heavy lifting procedures and DO NOT  
attempt to lift the ride-on trowel by the guard rings.  
ALWAYS check to make sure that the operating area is clear  
before starting the engine.  
NEVER leave the machine unattended while running.  
ALWAYS be sure the operator is familiar with proper safety  
precautions and operations techniques before using trowel.  
ALWAYS keep the work area well organized.  
The STR46SP Ride-On PowerTrowel is designed to be moved  
and handled several ways.  
ALWAYS clear the work area of any debris, tools, etc. that  
would constitute a hazard while the trowel is in operation.  
The easiest way to lift the trowel is to utilize the lift loops that are  
welded to the frame.These lift loops are located to the left and  
right sides of the operator’s seat.  
WARNING  
ALWAYS check to make sure that the operating area is  
clear before starting the engine.  
A strap or chain can be attached to these lift loops, allowing a  
forklift or crane to lift the trowel up onto and off of a slab of concrete.  
The strap or chain should have a minimum 2,000 pounds (1000-  
kg) lifting capacity and the lifting gear must be capable of lifting  
at least this amount.  
No one other than the operator is to be in the working area  
when the trowel is in operation.  
NEVER allow passengers or riders on the trowel during  
operation.  
DANGER  
Always observe all applicable compulsory regulations  
relevant to environmental protection, especially, fuel storage,  
the handling of hazardous substances, and the wearing of  
protective clothing and equipment. Instruct the user as  
necessary, or, as the user, request this information and  
training.  
NEVER stand under or allow anyone  
else to stand under the trowel while it  
is being lifted.  
ALWAYS store equipment properly when it is not being used.  
Equipment should be stored in a clean, dry location out of  
the reach of children.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 11  
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STR46SP — RULES FOR SAFE OPERATION  
Transporting  
Use chock-blocks at each wheel when parked to prevent  
trailer from rolling.  
ALWAYS shutdown engine before transporting.  
Use the trailer's swivel jack to adjust the trailer height to a  
level position while parked.  
Tighten fuel tank cap securely and close fuel petcock to  
prevent fuel from spilling.  
Avoid sudden stops and starts. This can cause the trailer to  
skid or jack-knife. Smooth, gradual starts and stops will  
improve towing.  
Drain fuel when transporting trowel for long distances or over  
bad roads.  
When placing the trowel on a truck-bed for transport, always  
tie-down the trowel.  
Avoid sharp turns.  
Trailer should be adjusted to a level position at all times  
when towing.  
If the trowel is being transported via a trailer, make sure the  
trailer complies with all local and state safety transportation  
laws. Refer to the following "Towing Safety Precautions"  
for basic towing techniques.  
Raise and lock trailer wheel stand in the "UP" position when  
transporting.  
DOT requirements include the following:  
Connect and test electric brake operation.  
Towing Safety Precautions  
Secure portable power cables in cable tray with tie wraps.  
CAUTION  
Conform to Department ofTransportation (DOT) Safety  
Towing Regulations before transporting trowel on public  
roads.  
Battery  
The battery contains acids that can cause injury to the eyes and  
skin. To avoid eye irritation, always wear safety glasses or face  
shielding. Use well insulated gloves when picking the battery  
up. Use the following guidelines when handling the battery.  
To reduce the possibility of an accident while transporting the  
trowel on public roads, always make sure the trailer that supports  
the trowel and the towing vehicle are in good operating condition  
and both units are mechanically sound.  
DO NOT drop the battery. Any impact to  
the battery may cause it to explode.  
DO NOT expose the battery to open flames,  
sparks, lit cigarettes etc. The battery  
contains combustible gases and liquids. If  
these gases and liquids come in contact  
with a flame or spark an explosion can occur.  
The following list of suggestions should be used when towing  
your trowel:  
Make sure the hitch and coupling of the towing vehicle are  
rated equal to, or greater than the trailer "gross vehicle weight  
rating" (GVWR) of 6,000 lbs.  
ALWAYS keep the battery charged. If the  
battery is not charged a buildup of combustible gas will occur.  
ALWAYS inspect the hitch and coupling for wear. NEVER  
ALWAYS keep battery cables in good working condition.  
Repair or replace all worn cables.  
tow a trailer with defective hitches, couplings, chains, etc.  
Check the tire air pressure on both towing vehicle and trailer.  
Trailer tires should be inflated to 50 psi cold. Also check  
the tire tread wear on both vehicles.  
ALWAYS disconnect the negative battery terminal before  
performing service on the trowel.  
ALWAYS recharge the battery in a vented air environment  
to avoid risk of a dangerous concentration of combustible  
gases.  
ALWAYS make sure the trailer is equipped with "Safety  
Chains ".  
ALWAYS attach trailer's safety chains to towing vehicle  
In case the battery liquid, (dilute sulfuric acid), comes in contact  
with clothing or skin, rinse skin or clothing immediately  
with plenty of water.  
properly.  
ALWAYS make sure the vehicle and trailer directional,  
backup, brake, and trailer lights are connected and working  
In case the battery liquid, (dilute sulfuric acid), comes in contact  
with your eyes, rinse eyes immediately with plenty of water,  
then contact the nearest doctor or hospital and seek medical  
attention.  
DO NOT exceed the recommended highway speed when  
towing. Unless posted otherwise, do not exceed 45 MPH  
highway, and 10 MPH off-road.  
PAGE 12 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 12  
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STR46SP — RULES FOR SAFE OPERATION  
Maintenance Safety  
Emergencies  
ALWAYS shut down the engine and disconnect battery before  
performing service or maintenance functions. Contact with  
moving parts can cause serious injury.  
ALWAYS know the location of  
the nearest fire extinguisher.  
Securely support any trowel components that must be raised.  
NEVER lubricate components or attempt service on a running  
trowel.  
ALWAYS know the location of the  
nearest first aid kit.  
ALWAYS allow the trowel a proper amount of time to cool  
before servicing.  
Keep the trowel in proper running condition.  
Know the phone numbers of the nearest  
ambulance, doctor and fire department. Ensure  
that a phone or radio is readily available at the  
jobsite. If this is not possible, know the location of  
the nearest phone. This information will be  
invaluable in the event of an emergency.  
Make sure that there is no buildup of concrete, grease, oil or  
debris on the machine.  
Repair damage to the trowel immediately and always replace  
broken parts.  
Dispose of hazardous waste properly. Examples of potentially  
hazardous waste are used motor oil, fuel and fuel filters.  
DO NOT use plastic food containers to dispose of hazardous  
waste.  
DO NOT pour waste oil or fuel directly onto the ground, down  
a drain or into any water source.  
NEVER store trowel with fuel in the tank for any extended  
period of time. Always clean up spilled fuel immediately.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 13  
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STR46SP — OPERATION AND SAFETY DECALS  
Machine Safety Decals  
The STR46SP Ride-On Power Trowel is equipped with a number of operation and safety decals. These decals are provided for  
operator safety and maintenance information. Should any of these decals become unreadable, replacements can be obtained from  
your dealer.  
WARNING  
To avoid injury,  
you MUST read  
and understand  
operator’s manual  
before using this  
machine.  
This machine to  
be operated by  
qualified  
personnel only.  
Ask for training  
as needed.  
P/N 35137  
P/N 11111 11” x 3”  
P/N 35137  
CLOCKWISE  
BELT DRIVE  
P/N: 21455  
P/N TBD  
GEAR DRIVE GEAR DRIVE  
CHECK  
CHECK  
WARNING  
P/N 2814 (WHITE)  
COUNTER  
CLOCKWISE  
HOT  
P/N 36099 (ISO Blue)  
ROTATING BLADE  
HAZARD  
LIFTING POINT LIFTING POINT  
Keep hands  
and feet clear  
of guard rings.  
Stop engine  
before servicing.  
P/N 35168  
MODEL  
SERIAL NO.  
CONTACT  
SERVICE  
DEPARTMENT  
LUBRICATION  
LUBRICATION  
P/N 35168  
P/N 20953  
LUBRICATION  
LUBRICATION  
Engine exhaust and some of  
its constituents,and some dust created  
by power sanding, sawing, grinding,  
drillingandotherconstructionactivities  
contains chemicals known to the State  
of California to cause cancer, birth  
defects and other reproductive harm.  
Someexamplesofthesechemicalsare:  
P/N: 11246  
Leadfromlead-basedpaints.  
Crystallinesilicafrombricks.  
Cementandothermasonryproducts.  
Arsenicandchromiumfromchemically  
treatedlumber.  
DECAL ENGINE  
SPEED PLATE  
DANGER  
Your risk from these exposures varies,  
dependingonhowoftenyoudothistype  
of work. To reduce your exposure to  
these chemicals: ALWAYS work in  
a
DO NOT DISASSEMBLE  
SPRING INSIDE IS  
well ventilated area, and work with  
approved safety equipment, such as  
dust masks that are specially designed  
to filter out microscopic particles.  
UNDER COMPRESSION  
2634  
P/N 20525  
P/N 2634  
P/N 11811  
P/N: 13118  
PAGE 14 — STR 31V  
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STR46SP — SPECIFICATIONS (TROWEL)  
C
B
A
Figure 1. STR46SP Dimensions  
Table 1. STR46 Specifications  
A–Length – in. (cm)  
95.0 (241.3)  
48.0 (122)  
B–Width – in. (cm)  
C–Height – in. (cm)  
46.0 (116.8)  
705 (320.5)  
1130 (513.6)  
150  
Weight – lbs. (kgs.) Operating  
Weight – lbs. (kgs.) Shipping  
Rotor – RPM (Dry Concrete)  
Path Width – in. (cm)  
91 (231)  
Hand/Arm Vibration1  
2.79 ft/s2 (m/s2)  
TBD ft/s2 (m/s2)  
90 dB(A)  
Whole Body Vibration  
Sound Pressure (A-Weighted)2  
NOTE:  
1.  
2.  
Sound pressure is a weighted measure. It is measured at  
the operator's ear position while the walk-behind trowel is  
operating at full throttle on concrete in a manner most often  
experienced in “normal” circumstances. Sound pressure  
may vary depending upon the condition of the concrete.  
The vibration level indicated is the maximum RMS (Root  
Mean Square) value obtained at the handle grip while  
operating the walk-behind trowel at full throttle on steel  
plate with blades partially pitched.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 15  
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STR46SP — SPECIFICATIONS (ENGINE)  
Table 2. STR46 Engine Specifications  
STR46  
Kohler 27 HP Engine  
Model  
4 Stroke, Overhead Valve V-Twin,  
gasoline engine.  
Type  
Piston Displacement  
Max. Output  
44.0 cu.in. (725 cc)  
27 bhp/3200 rpm (20.1 KW)  
42.7 lbf-ft at 2200 rpm  
Forced Air  
Max. Torque  
Cooling System  
1.75 qt. (1.6 liters)  
2.1 qt. (1.9 liters w/oil filter  
replacement)  
Engine Oil Capacity  
Fuel Tank  
5 gal.(19.23 liters)  
69 oz. (2.041 L) (Mobil SCH 634  
ISO VG640)  
Gear Box Oil Capacity  
Unleaded gasoline  
Octane rating of 86 or higher  
Fuel  
Starting System  
Spark Plug Type  
Spark Plug Gap  
Electric Start/Transistorized Magneto  
see engine owner's manual  
see engine owner's manual  
PAGE 16 — STR 31V  
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STR46SP — GENERAL INFORMATION  
STR46 SERIES Ride-On PowerTrowel Familiarization  
Gearboxes  
The STR46 SERIES Ride-On Power Trowel is designed for the  
floating and finishing of concrete slabs.  
The STR46 Series Ride-On Power Trowel uses two separate  
gearbox assemblies that are enclosed in rugged cast aluminum  
gear cases.  
Take a walk around your trowel. Take notice of all the major  
components (see Figures 2 and 3, pages 20 and 21) like the  
engine, blades, air cleaner, fuel system, fuel shut-off valve,  
ignition switch etc. Ensure engine and gearbox oil levels are  
within proper operating range.  
The gearbox casing has a large oil capacity allowing optimum  
lubrication to critical points.  
Steering Assist  
Dual control levers located in front of the operator's seat are  
provided for steering the trowel.The control levers are linked to  
two spring loaded cylinders.  
Read all the safety instructions carefully.Safety instructions will  
be found throughout this manual and on the machine. Keep all  
safety information in good, readable condition. Operators should  
be well trained on the operation and maintenance of the trowel.  
Push the left control lever forward and pull the right control lever  
backward and the trowel will rotate clockwise on approximately  
a center axis. Pull the left control lever backward and push the  
right control lever forward and the trowel will rotate  
counterclockwise. See Table 4 on page 26 for a complete  
description on the control levers directional positioning.  
Look at the operator control levers. Grasp the control levers and  
move them around a bit. Observe how moving the control levers  
cause the gearboxes and frame to move.  
Notice the foot pedal which controls the engine and blade speed.  
Also take a look at the main driveline of the trowel. Take note  
and reference how the belts look, this is the way the belts should  
look when adjusted properly.  
Constant Velocity Joints (CV-Joints)  
Constant velocity joints insure the efficient transfer of power to  
the drive shaft and maintain the timing of the gearboxes without  
any chance of slippage.  
Before using your trowel, test it on a flat watered down section of  
finished concrete.This trial test run will increase your confidence  
in using the trowel and at the same time it will familiarize you  
with the trowel’s controls and indicators. In addition you will  
understand how the trowel will handle under actual conditions.  
Training  
For training, please use the “TRAINING CHECKLIST” located  
in the front of this manual (Page 8).This checklist is not intended  
to be a substitute for proper training but will provide an outline  
for an experienced operator to provide training to a new operator.  
Engine  
This trowel is equipped with an air cooled 27 HP Kohler gasoline  
engine. Refer to the engine owner’s manual for specific  
instructions regarding engine operation.This manual is included  
with the trowel at the time of shipping. Please contact the STOW  
parts department if a replacement manual is required.  
Blades  
The blades of the trowel finish the concrete as they are swirled  
around the surface. Blades are classified as combination (10 or  
8 inches wide) and finish (6 inches wide).This trowel is equipped  
with four blades per rotor equally spaced in a radial pattern and  
attached to a vertical rotating shaft by means of a spider  
assembly.  
Figures 2 and 3 show the location of the controls, indicators and  
general maintenance parts. Each control may perform more than  
one function.The functions of the controls or indicators are on  
pages 20 and 21.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 17  
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STR46SP — CONTROLS AND INDICATORS  
1.  
2.  
3.  
4.  
Seat – Engine will neither start nor run unless operator is  
8.  
Choke Control Lever – In cold weather pull this lever to  
seated.  
start engine. After engine warms push knob all the way in.  
Steering Control Levers – Directs the unit forward,  
reverse, left, or right.  
9.  
Fuel Gauge/Filler Cap – Indicates the amount of fuel in  
the fuel tank. Remove this cap to add fuel.  
Retardant Spray Control Button – Sprays retardant  
through the nozzle at the front of the machine.  
10. FuelTank Holds 5 gallons of unleaded gasoline.  
11. Left Foot Riser – Operator foot rest pedal.  
12. Spray Nozzle – Spray nozzle for retardant.  
Pitch Control Turn the crank as marked on its top surface  
to increase or decrease blade pitch.  
13. Right Foot Pedal – Controls blade speed. Slow blade  
speed is accomplished by slightly depressing the foot pedal.  
Maximum blade speed is accomplished by fully depressing  
the foot pedal.  
Twin Pitch Control (Option) – Both pitch towers are linked  
together. One crank may be turned to adjust the blade  
pitch simultaneously or individually controlled for each set  
of blades.  
14. EZ- Mover Boss – Front attachment point for EZ Mover.  
5.  
6.  
7.  
Light Switch Turns on three halogen lights.Two in front  
one in rear.  
Used to move the trowel.  
15. Dip Stick – Use to verify correct amount of engine oil.  
16. Spark Plug – Access the spark plug through this cutout.  
Ignition Switch – With key inserted, turn clockwise to  
start engine.  
Hour Meter – Indicates number of hours the engine has  
run.  
2
4
1
3
5
9
10  
15  
8
19  
6
16  
18  
7
28  
11  
14  
12  
13  
14  
26  
Figure 2. STR46SP Controls and Indicators (Front)  
PAGE 18 — STR 31V  
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STR46SP — CONTROLS AND INDICATORS  
17. Safety Stop Switch – Shuts down engine when seat is  
26. Spiders (Left/Right) – Consists of trowel arms, blades,  
empty.  
wear plate, and thrust collar.  
18. Light Assembly – Optional 12 volt halogen lights are  
27. Document Box – Contains all product documentation.  
28. Battery Provides +12V DC power to the electrical system.  
available, two forward and one aft.  
19. Lift Loops – Located on both sides of the main frame.  
29. Belt Guard – Encloses drive belt used in conjunction with  
Used to lift the trowel.  
clutch.  
20. Engine Air Filter – Protects the engine from dirt.  
21. Oil Filter – Filters the engine oil.  
30. Engine Oil Fill – Remove this cap to add engine oil.  
22. Oil Drain – Remove the plug from end of hose to drain the  
engine oil.  
23. Retardant SprayTank – Holds 5 gallons of retardant.  
NOTE  
24. Retardant Spray Pump – Delivers retardant to the spray  
nozzle.  
25. EZ- Mover Boss – Rear attachment point for EZ Mover.  
Read, understand, and comply with all safety messages and  
operating instructions in this manual before attempting to operate  
the trowel.  
Used to transport the trowel.  
17  
27  
19  
15  
19  
18  
30 20  
9
24  
10  
28  
R
E
T
A
R
D
A
N
T
O
N
L
Y
25  
29  
21  
23  
22  
25  
26  
Figure 3. STR46SP Controls and Indicators (Rear)  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 19  
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STR46SP — BASIC ENGINE  
3
2
8
1
7
9
10  
6
11  
5
4
12  
Kohler 27 HP Engine  
Figure 4. Engine Controls and Components  
INITIAL SERVICING  
5.  
Oil Cooler – Helps keep engine oil cooler for longer engine  
life.  
The engine must be checked for proper lubrication and the fuel tank  
filled with fuel prior to operation. Refer to the manufacturer's engine  
manual for instructions & details of operation and servicing. The  
engine shown in Figure 4 is a Kohler engine.  
6. Oil Filter – Spin-on type, filters oil for contaminants.  
7.  
Throttle Lever – Controlled by accelerator pedal,  
increases or decreases engine RPM.  
1. Muffler Used to reduce noise and emissions.  
8. Oil Dip Stick – Remove to check amount and condition of  
oil in crankcase.  
9.  
Ignition Coil – Provides spark to the ignition system.  
WARNING  
Enginecomponentscangenerateextremeheat.  
To prevent burns, DO NOT touch these areas  
while the engine is running or immediately after  
operating. NEVER operate the engine with the  
muffler removed.  
10. Spark Plug – Provides spark to the combustion chamber.  
See engine owner's manual for plug type and gap settings.  
Clean spark plug once a week.  
11. Starter – Starts engine when ignition key is rotated to the  
"START" position.  
12. Side Oil Drain Plug (one of two) – Remove to drain  
crankcase oil.  
2. Oil Filler Cap – Remove to add engine oil.  
3. Air Filter – Prevents dirt and other debris from entering the  
fuel system. Unsnap air filter cover to gain access to filter  
element.  
4.  
Oil Drain Hose Remove plug from end of hose to drain  
crankcase oil.  
PAGE 20 — STR 31V  
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STR46SP — NEW MACHINE SETUP INSTRUCTIONS  
Trowel Pre-Set Up Instructions  
Seat Assembly  
The purpose of this section is to assist the user in setting up a  
NEW trowel. If your trowel is already assembled, (seat, handles,  
knobs and battery), this section can be skipped.  
The seat is not installed on the trowel for shipping purposes.  
To attach the seat perform the following:  
The new trowel cannot be put into  
service until the pre-setup installation  
instructions are completed. These  
pre-setup instructions only need to  
be performed at the time of  
There are two types of seats,  
depending on what type of trowel  
you have. J and B series trowels have  
slots on the seat mounting plate that  
allow fore and aft adjustment of the  
NOTE  
NOTE  
unpacking a NEW trowel.  
seat. H and S-series trowels have a seat that is mounted  
on tracks, similar to an automobile seat.This seat can be adjusted  
fore and aft via the control lever under the front of the seat.  
Before packaging and shipping, this STR46 SERIES Ride-On  
Power Trowel was run and tested at the factory. If there are  
problems, please let us know.  
1.  
2.  
Remove the seat from the protective wrapping.  
Remove the bolts on the bottom of the seat, and place seat  
on the seat mounting plate, then insert the bolts through  
the holes or slots on the seat mounting plate and tighten.  
Control Handle Assembly  
The steering control handles are not attached to the trowel's two  
lower handles at the time of shipment. To attach the steering  
control handles to the two lower handle assemblies perform the  
following:  
Battery Setup  
This trowel was shipped with a wet charged battery.This battery  
may need to be charged for a brief period of time as per the  
manufacturer instructions.  
1.  
2.  
3.  
4.  
Remove the bolts from the plastic bag tied to the control  
towers.  
Remove all protective wrapping and straps from the control  
handles.  
CAUTION  
Slip the top (loose) piece into the base of the corresponding  
handle, making sure to line up the holes.  
Use all safety precautions specified by the battery  
manufacturer when working with the battery. See further  
specific safety information on page 12 of this manual.  
Install the bolt through the lined up holes and tighten the  
acorn nut onto the threaded end.  
To install the battery on the trowel, make sure that the battery is  
well seated in the battery box. Connect the positive cable to the  
positive terminal on the battery first, then connect the negative  
cable to the negative terminal. Close the plastic battery box cover  
and secure the battery box.  
Some models are equipped with  
adjustable height handles. Adjust the  
height by placing the bolt through the  
set of holes that corresponds to the  
most comfortable height.  
NOTE  
5.  
6.  
Pay close attention to any wires that may be inside the  
control handles. DO NOT pinch or cut any wires during  
installation.  
Inside the plastic bag of parts are two knobs for the pitch  
control tower cranks. Install these two knobs onto the tower  
crank levers.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 21  
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STR46SP — INITIAL START-UP  
The following section is intended as a basic guide to the ride-on  
trowel operation, and is not to be considered a complete guide  
to concrete finishing. It is strongly suggested that all operators  
(experienced and novice) read “Slabs on Grade ” published by  
the American Concrete Institute, Detroit Michigan.  
Table 3. RecommendedViscosity Grades  
DO NOT use your ride-on power trowel until this section is  
thoroughly understood.  
CAUTION  
Gearbox Oil Level  
Failure to understand the operation of the STR46SP trowel  
could result in severe damage to the machine or personal  
injury.  
1.  
Check the gearbox oil level in both gearboxes  
by removing the level plug and ensuring that  
the oil is at the correct level. See Figure 6.  
See Figures 2 and 3 for the location of any control or indicator  
referenced in this manual.  
2.  
Fill the gear box just to the level of the fill plug.  
(Figure 6) with 69 oz. (2.041 L) of Multiquip  
gearbox lubricant, p/n 20111, ISO or  
equivalent.  
Engine Oil Level  
ALWAYS check engine oil BEFORE EACH USE.  
DRAIN  
PLUG  
GEARBOX  
VENT  
1.  
Pull the engine oil dipstick (Item 8, Figure 4)  
FILL/LEVEL  
CHECK PLUG  
from its holder.  
2.  
Determine if engine oil is low (Figure 5).  
3.  
If engine oil is low, remove oil filler cap (Item 2, Figure 4),  
and add correct amount of engine oil to bring oil level to a  
normal safe level. The oil level should be up to, but not  
over the "F" mark on the dipstick. Use oil as recommeded  
in Table 3.  
Figure 6. Gearbox Oil Plugs/Sight Glass  
Fuel  
Determine if the engine fuel is low (Figure 7). If fuel level is low,  
remove the fuel filler cap and fill with unleaded gasoline.  
Figure 5. Engine Oil Dipstick  
DANGER  
Handle fuel safely. Motor fuels are highly  
flammable and can be dangerous if  
mishandled. DO NOT smoke while  
refueling. DO NOT attempt to refuel the ride-  
on trowel if the engine is hot or running. DO  
NOT attempt to start the engine until the fuel  
residue has been completely wiped up and  
the area surrounding the engine is dry.  
To prevent extensive engine wear or  
damage, always maintain the proper  
oil level in the crankcase. Never  
operate the engine with the oil level  
below the "L" mark or over the "F"  
mark on the dipstick.  
NOTE  
PAGE 22 — STR 31V  
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STR46SP — OPERATION  
5. When starting a cold engine, pull the choke knob, if so  
equipped, (Figure 9) out to the closed position. In warm  
weatherorwhentheengineiswarm,theunitcanbestarted  
with choke halfway or completely open.  
FUEL  
E
F
CHOKE  
KNOB  
Figure 7. Fuel Gauge  
CLOSED  
OPEN  
Important Information BeforeYou Start  
1.  
This ride-on trowel is equipped with a safety "safety stop  
switch". This switch is located beneath the seat assembly.  
Remember the engine will not start unless an operator is  
sitting in the operator’s seat. The weight of an operator  
depresses an electrical switch which will allow the engine  
to start.  
Figure 9. Choke Knob  
WARNING  
6.  
Keep your foot OFF the blade speed control pedal and in  
all circumstances, start the engine at idle (without touching  
the pedal).  
NEVER disable or disconnect the "safety stop switch". It is  
provided for the operator's safety and injury or death may  
result if it is disabled, disconnected or improperly  
maintained.  
7.  
8.  
Insert the ignition key into the ignition switch.  
Turn the ignition key (Figure 10) clockwise and listen for  
the engine to start. Once the engine starts release ignition  
key.  
2.  
3.  
The safety stop switch should be used to stop the engine  
after every use. Doing this will verify the switch is working  
properly thus providing safety for the operator.Remember  
to turn the key to the “OFF” position after stopping the  
machine.Not doing so will drain the battery.  
9.  
If the engine fails to start in this manner, consult the engine  
owner's manual supplied with the trowel.  
10. Test the safety stop switch by standing up briefly.The switch  
under the seat should cause the engine to stop. If the switch  
fails to shut down the engine.Turn off the engine with the  
key switch and repair the safety stop switch. See Table 7  
(Troubleshooting ) for possible causes.  
The right foot pedal (Figure 8) controls blade and engine  
speed.The position of the foot pedal determines the blade  
speed. Slow blade speed is obtained by slightly depressing  
the pedal. Maximum blade speed is obtained by fully  
depressing the pedal.  
OFF  
START  
Figure 8. Blade Speed Control Foot Pedal  
Starting the Engine  
1. With one foot on the ground and the other foot placed on  
Figure 10. Ignition Key  
the trowel's platform, grab the frame near the seat and lift  
yourself onto the trowel. Sit in the operator's seat and ensure  
the control handles, foot pedal and control panel items can  
be comfortably accessed.  
11. Let the engine idle for 3-5 minutes. If choke is applied,  
push the choke to the open position as soon as the engine  
will run smoothly.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 23  
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STR46SP — OPERATION  
Steering  
5.  
6.  
Try adjusting the pitch of the blades.This can be done with  
the ride-on trowel stopped or while the trowel is moving,  
whatever feels comfortable.Test the operation of optional  
equipment like retardant spray and lights if equipped.  
Two control levers located in front of the operator’s seat provide  
directional control for the STR46 SERIES Ride-On PowerTrowel.  
Table 4 (Page 26) illustrates the various directional positions of  
the joysticks and their effect on the ride-on trowel.  
Pull both the left and right joysticks backward and repeat  
steps 3 through 6 while substituting the word reverse for  
forward.  
All directional references with respect  
to the steering control levers are from  
the operator’s seat position.  
1.  
Push both the left and right control levers forward. See  
Figure 11.  
LEFT CONTROL LEVER  
FORWARD DIRECTION  
RIGHT CONTROL LEVER  
Figure 11. Left and Right Control Levers  
2.  
3.  
With your right foot quickly depress the right foot pedal  
halfway.Notice that the ride-on power trowel begins to move  
in a forward direction. Return both joystick controls to their  
neutral position to stop forward movement, then remove  
your right foot from the right foot pedal.  
Practice holding the machine in one place as you increase  
blade speed. When about 75% of maximum blade speed  
has been reached, the blades will be moving at proper  
finishing speed. The machine may be difficult to keep in  
one place.Trying to keep the ride-on trowel stationary is a  
good practice for operation.  
CAUTION  
Trowel arms can be damaged by rough handling or by  
striking exposed plumbing or forms while in operation.  
ALWAYS look-out for objects which might cause damage  
to the trowel arms.  
4.  
Practice maneuvering the ride-on trowel using the  
information listed in Table 4. Try to practice controlled  
motions as if you were finishing a slab of concrete. Practice  
edging and covering a large area.  
PAGE 24 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 24  
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STR46SP — MAINTENANCE  
Maintenance  
When performing any maintenance on the trowel or engine,  
follow all safety messages and rules for safe operation stated at  
the beginning of this manual.  
WARNING  
Accidental starts can cause severe injury  
or death.  
ALWAYS place the ON/OFF switch in the  
OFF position.  
Disconnect and ground spark plug  
leads and disconnect negative  
battery cable from battery before  
servicing.  
Figure 12. Engine Service Areas  
MAINTENANCE SCHEDULE  
1. Oil Level Dipstick  
2. Air Cleaner Cover  
1.  
Daily (8-10 Hours)  
1. Check the fluid levels in the engine and gearboxes, fill as  
Check and retighten all fasteners as necessary.  
3.  
Carburetor  
4. Governor  
necessary.  
5. Oil Fill Cap (On either side)  
6. #2 Valve Cover  
Weekly (30-40 Hours)  
1.  
2.  
3.  
Relube arms, thrust collar and steering links.  
Replace blades if necessary.  
7.  
8.  
#2 Exhaust Port  
Spark Plug, #2 side  
Check and clean or replace the engine air filter as  
necessary. (See following section on Air Filter  
Maintenance.)  
9. Oil Filter  
10. Rectifier-regulator  
11. Oil Drain (oil filter side)  
12. Oil Drain Hose (starter side)  
13. Starting Motor and Solenoid  
14. Spark Plug, #1 side  
15. #1 Valve Cover  
4.  
Replace engine oil and filter as necessary.(See following  
section on Oil and Filter.)  
Monthly (100-125 Hours)  
1.  
2.  
3.  
Remove, clean, reinstall and relube the arms and thrust  
collar.Adjust the blade arms.  
Replace gearbox lubricant after the first 100 hours of  
operation.Replace every 500-600 hours thereafter.  
Check drive belt for excessive wear. (Refer to following  
section on Drive Belt maintenance.)  
Yearly (500-600 Hours)  
1.  
Check and replace if necessary the arm bushings, and  
thrust collar bushings, shaft seals and belts.  
2.  
3.  
Check pitch control cables for wear.  
Replace gearbox lubricant.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 25  
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STR46SP — MAINTENANCE  
AirCleaner(Daily)  
The Kohler 27 hp engine is equipped with a replaceable, high-  
density paper air cleaner element. Most are also equipped with  
an oiled-foam precleaner which surrounds the paper element.  
1.  
Check the air cleaner daily or before starting the engine. Check  
for and correct heavy buildup of dirt and debris along with loose  
or damaged components.  
2.  
3.  
4.  
5.  
Operating the engine with loose or  
damaged air cleaner components  
could allow unfiltered air into the  
engine causing premature wear and  
failure.  
6.  
7.  
PrecleanerService  
If so equipped, wash and re-oil the precleaner every 25 hours of  
operation (more often under extremely dusty or dirty conditions).  
To service the precleaner perform the following steps, refer to  
Figure 13:  
8.  
1.  
2.  
3.  
Release the latches located on either side of the air cleaner  
cover (Figure 13), and remove the cover.  
9.  
Remove the foam precleaner from the paper air cleaner  
element.  
10.  
Wash the precleaner in warm water with detergent. Rinse  
the precleaner thoroughly until all traces of detergent are  
eliminated. Squeeze out excess water (do not wring). Allow  
the precleaner to air dry.  
11.  
4.  
Saturate the precleaner with new engine oil. Squeeze out  
all excess oil.  
5.  
6.  
Reinstall the precleaner over the paper air cleaner element.  
Reinstall the air cleaner cover and secure the latches.  
12.  
13.  
15.  
14.  
Figure 13. Air Cleaner Components  
PAGE 26 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 26  
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STR46SP — MAINTENANCE  
Air Cleaner Components - See Figure 13.  
Air Cleaner - Components to Check  
Whenever the air cleaner cover is removed, or the paper element  
or precleaner is serviced, check the following:  
1. Air Cleaner Cover  
2. Latch Spring  
Air Cleaner Element Cover and Seal - Make sure the  
element cover is not bent or damaged. Make sure the wing  
nut, washer and seal are in place to ensure the element is  
sealed against leakage.  
3.  
Lever Latch  
4. Latch Lever Pin  
5. Wing Nut  
6. Inner Air Cleaner Cover  
Air Cleaner Base - Make sure the base is secured tightly to  
carburetor and not cracked or damaged.  
7.  
8.  
Precleaner Element  
Air Cleaner Element  
BreatherTube - Make sure the tube is installed to both the  
air cleaner base and the breather cover.  
9. seal  
10. Air Cleaner Bracket  
11. Air Cleaner Base  
12. Air Cleaner Base Gasket  
13. Intake Manifold Gasket  
14. Intake Manifold  
15. screw  
Disassembly and Reassembly (StandardType)  
If the base plate on the standard type must be removed, proceed  
as follows:  
1.  
2.  
3.  
Remove the air cleaner components as described  
previously.  
Paper Element Service (StandardType)  
Remove the hex flange screws securing the bracket and  
base.  
Check the paper element every 100 hours of operation (more  
often under extremely dusty or dirty conditions). Replace the  
element as necessary.  
Remove the base and gasket. Carefully pull the rubber  
breather tube through the base  
4.  
5.  
Remove the tube from under side of base if necessary.  
Refer to the following steps and to Figure 13:  
Reverse the foregoing steps to reinstall new or service  
components.Tighten screw to 9.9 N-m (88 in. lb.) torque.  
1.  
2.  
3.  
4.  
Release the latches located on either side of the air cleaner  
cover (Figure 13), and remove the cover.  
Remove the wing nut, element cover, seal and air cleaner  
element.  
Air Intake/Cooling System  
Remove the precleaner (if so equipped) from the paper  
element.  
To ensure proper cooling, make sure the grass screen and fan  
cooling fins and other external surfaces of the engine are kept  
clean at all times.  
Do not wash the paper element or use pressurized air, as  
this will damage the element. Replace a dirty, bent, or  
damaged element with a new element as prescribed by  
the engine manufacturer.Handle new elements carefully;  
do not use if the sealing surfaces are bent or damaged.  
Every 100 hours of operation (more often under extremely dusty  
or dirty conditions:  
1.  
2.  
3.  
Remove the blower housing and other cooling shrouds.  
Clean the cooling fins and external surfaces as necessary.  
Make sure the cooling shrouds are reinstalled.  
5.  
6.  
Reinstall the seal, paper element, precleaner, element  
cover, flat washer and wing nut.  
Reinstall the air cleaner cover and secure the latches.  
CAUTION  
Operating the engine with a blocked grass screen, dirty or  
plugged cooling fins, and/or cooling shrouds removed, will  
cause engine damage due to overheating.  
Make sure the correct depth air  
cleaner element and rubber seal are  
used for the engine spec. involved.  
NOTE  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 27  
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STR46SP — MAINTENANCE  
Changing Engine Oil And Filter  
Oil And Fuel Lines  
Check the oil and fuel lines and connections regularly for  
leaks or damage.Repair or replace as necessary.  
1. Change the engine oil after the first 5 hours of use, then  
change every 6 months or 100 hours.  
2.  
Remove the oil filler cap (Figure 12, Item 5), and fill engine  
crankcase with recommended type oil as listed inTable 3.  
Fill to the upper limit of dipstick.  
Replace the oil and fuel lines every two years to maintain the  
line's performance and flexibility.  
3.  
Crankcase oil capacity with oil filter replacement is 2.02  
qts. (1.90 liters).  
Long Term Storage  
Remove the battery.  
Drain fuel from fuel tank, fuel line and carburetor.  
Oil Filter (100 Hours)  
Remove spark plug and pour a few drops of motor oil into  
cylinder. Crank engine 3 to 4 times so that oil reaches all  
internal parts.  
1.  
Replace the engine oil filter (Figure 14) every oil change  
or 100 hours.  
Clean exterior with a cloth soaked in clean oil.  
Store unit covered with plastic sheet in moisture and dust-  
free location out of direct sunlight.  
CAUTION  
Never store the ride-on trowel with fuel in the tank for any  
extended period of time. Always clean up spilled fuel  
immediately.  
Figure 14. Oil Filter  
2.  
Be sure to coat the seal of the new oil filter with clean  
engine oil.  
Engine Tune-Up  
See your engine manual for specific information on tuning  
up your engine, checking and gaping the spark plugs, etc.  
Fuel Filter (200 Hours)  
Replace the engine fuel filter (Figure 15) every 200 hours.  
See the engine manual supplied with  
your machine for appropriate engine  
NOTE  
maintenance  
schedule  
and  
troubleshooting guide for problems.  
At the front of the book (Page 9) there is a “Daily Pre-Operation  
Checklist”. Make copies of this checklist and use it on a daily  
basis.  
Figure 15. Fuel Filter (Typical)  
Disconnect spark plug wires and battery cables before attempting  
any service or maintenance on the ride-on trowel.  
PAGE 28 — STR 31V  
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STR46SP — MAINTENANCE  
CheckingThe Drive Belt  
5
The drive belt needs to be replaced as soon as it starts to show  
signs of wear. Indications of excessive belt wear are fraying,  
squealing when in use, belts that emit smoke or a burning rubber  
smell when in use.  
Under normal operating conditions, a drive belt may last  
approximately 150 hours. If your trowel is not reaching this kind  
of life span for drive belt wear, check the drive belt for proper  
pulley alignment and spacing.  
3
2
4
1
To gain access to the drive belt, remove the drive belt guard  
cover (Item 1, Figure 17), then visually inspect the drive belt for  
signs of damage or excessive wear. If the drive belt is worn or  
damaged, replace the drive belt.  
1
2
3
4
5
Drive Belt Guard Cover  
Lower Pulley  
Upper Pulley  
Spare Drive Belt  
Spare Drive Belt Holder  
WARNING  
DO NOT attempt to insert hands or tools  
into the belt area while the engine is  
running. NEVER run the engine with the  
safety guards removed. Keep fingers,  
hands, hair and clothing away from all  
moving parts to prevent bodily injury.  
Figure 17. Drive Belt Guard Cover  
1.  
2.  
Remove Drive Belt Guard Cover (Item 1, Figure 17).  
Squeeze the drive belt as shown in Figure 18, and pull the  
V-belt upwards.This will spread open the faces of the lower  
drive pulley.  
WARNING  
DO NOT remove the drive belt guard cover  
until the muffler has cooled. Allow the entire  
trowel to cool down before performing this  
procedure.  
1
2
6
Removing the Drive Belt  
z
z
Leave the existing drive belt intact until instructed to cut it.  
Leave the engine in place for this procedure. It is not  
necessary to slide the engine to replace the drive belt.  
3
5
4
z
Have a 3/4 X 1 X 3-1/4 inch wooden block available.  
1
2
3
4
5
6
Upper Pulley  
Drive Belt  
Lower Pulley Fixed Face  
Lower Pulley Spread Apart  
Lower Pulley Movable Face  
WOODEN BLOCK  
WIDTH  
1.00 IN.  
LENGTH  
3.25 IN.  
HEIGHT  
.75 IN.  
Squeeze and Pull Up To Spread  
Lower Pulley  
Figure 18. Expanding Lower Drive Pulley  
Figure 16. Wooden Block For Spacer  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 29  
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STR46SP — MAINTENANCE  
3.  
Insert the 3/4" X 1" X 3-1/4" block between the moveable  
face and the fixed face of the lower drive pulley. See Figure  
19. This block will help keep the lower drive pulley faces  
open while installing the new drive belt.  
In the event of a drive belt failure, the spare (replacement) drive belt  
can be used for quick replacement at the job site to continue trowel  
operation.  
1.  
If necessary, refer to Removing Drive Belt Instructions.  
Ensure all remnants of old belt have been removed from  
pulleys.  
2.  
To replace the drive belt with the spare drive belt, remove  
the 2 bolts that secure the drive belt carrier. (Figure 20)  
This will allow free movement of the belt for installation.  
Take care with to not contaminate the relplacement belt  
with grease or dirt.  
1
Wooden Block  
3.  
4.  
With the 3/4 x 1 x 3-1/4 wood block holding the lower pulley  
open, place the replacement belt into the lower pulley first.  
Work the belt over the upper drive pulley into the pulley  
groove.  
Figure 19. Holding Lower Pulley Open  
Squeeze the belt enough to remove the wood block. With  
the block removed, release the tension on the belt.  
4.  
If the belt is not being reused (recommended), CUT the  
drive belt. Ensure all belt remnants are removed from  
the pulleys.  
5.  
6.  
Reinstall the spare belt carrier and the drive belt guard.  
Replace the spare belt before the next trowel use. See  
spare drive belt replacement procedures.  
Installing the Drive Belt (Using Replacement Drive Belt)  
The STR46SP Ride-On Power Trowel is equipped with a  
replacement drive belt (spare) carrier, which is mounted on the  
inboard side of the fuel tank near the clutch. Make sure that there is  
ALWAYS a spare drive beltin the drive belt carrier before the trowel  
is placed on a slab to finish concrete.  
2
1
3
1
2
3
4
5
6
Bolt, Spare Drive Belt Carrier  
Spare Drive Belt Holder  
Wooden Block  
CV-Joint  
New Spare Drive Belt  
4
5
6
Figure 20. Drive Belt Install  
Lower Drive Pulley  
PAGE 30 — STR 31V  
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STR46SP — MAINTENANCE  
5
4
6
1
2
3
1
2
3
4
5
6
CV Joint  
Bolt (Remove 3 places)  
New Spare Drive Belt  
Bolt, Spare Drive Belt Carrier  
Spare Drive Belt Holder  
Left Side Gearbox  
Figure 21. Spare Drive Belt Replacement  
Spare Drive Belt Replacement  
It will be necessary to disconnect the  
3.  
Once the CV-joint has been separated from the left-side  
gearbox, push the CV-joint inward so that a gap exists  
between the gearbox and the CV-joint (Figure 21). Slide  
the spareV-belt between the gearbox coupler and the CV-  
joint. Avoid contaminating the replacement belt with grease  
or oil when sliding it between the CV-Joint and gearbox  
coupler.  
CV-Joint from the left-side gearbox  
coupler.This means the removal of  
the three screws that secure the CV-  
Joint to the gearbox.  
NOTE  
To replace a spare drive belt, be prepared to disconnect the CV-  
joint from the left-side gearbox. See Figure 21.  
4.  
5.  
Place the spare drive belt inside the drive belt carrier, and  
secure the spare belt carrier to the inboard side of the left  
gearbox.  
1.  
2.  
Place the trowel on suitable supports and observe all safety  
precautions.  
Install the three screws that secure the CV-joint to the left-  
side gearbox coupler.  
Remove the three screws that secure the CV-joint to the  
left-side gearbox coupler.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 31  
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STR46SP — MAINTENANCE  
Drive SystemTheory of Operation  
Centrifugal force pushes the roller arms against the ramp plate,  
forcing the moveable face toward fixed face squeezing the belt. (see  
Figure 24 below)  
The STR46SP Ride-On Power Trowel is equipped with a "Torque  
Converter"whichsuppliestorquetoboththeleftandrightgearboxes.  
CENTRIFUGAL FORCE  
The function of the torque converter is to automatically deliver the  
correct amount of torque required by the trowel under all load  
conditions.This enables the trowel to deliver the necessary torque  
for float pan applications and the high rotor speeds required for  
burnishing concrete.  
LOW OUTPUT  
SPEED  
DRIVE  
PULLEY  
DISTANCE  
MOVEABLE  
FACE  
MOVEABLE FACE  
IS CONTROLLED  
BY A SPRING  
TRAVELS  
AND BELT TENSION  
LOW ENGINE RPM  
DRIVEN PULLEY  
The torque converter used in the STR46 SERIES Ride-On Power  
Trowel is a variable pitch pulley type (Figure 22) connected by a  
drive belt.  
MOVABLE FACE IS  
CONTROLLED BY  
ROLLER WEIGHT ARMS  
AND SPRINGS  
HIGH OUTPUT  
SPEED  
DRIVE  
PULLEY  
HIGH ENGINE RPM  
DRIVEN PULLEY  
Fig. 24. Pulley Interaction  
The"VariablePitchPulleys"haveone fixedface, andone moveable  
face.The drive pulley ( torque converter, Figure 25) moveable face  
is controlled by roller weight arms and springs, which change  
position according to engine speed.The driven pulley moveable  
face is controlled by a spring and belt tension.  
DRIVE PULLEY  
Fig. 22 Torque Converter/Variable Pitch Pulley  
RAMP  
PLATE  
BUSHING  
Drive Pulley  
SPRING  
The "Drive Pulley" uses centrifugal force (Figures 23 and 24)  
to create a belt squeeze force transmitted at the pulley faces.  
This condition functions as an automatic clutch and transmission.  
ROLLER ARM  
RI  
F
T
N
U
G
A
E
L
C
F
O
WEIGHT  
R
C
E
Fig. 25.Variable Pitch Pulley  
FIXED  
FACE  
A
B
C
DRIVE  
PULLEY  
VARIABLE  
FACE  
DRIVEN  
PULLEY  
QUEEZE  
S
T
DRIVE PULLEY  
(TORQUE CONVERTER)  
FORCE  
BEL  
NEUTRAL  
LOW SPEED  
HIGH SPEED  
Figure 23. Torque Converter (Centrifugal Force)  
Figure 26. Pulley Conditions  
PAGE 32 — STR 31V  
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STR46SP — MAINTENANCE  
How It Works (Figure 26)  
Blade Pitch  
Condition A:  
Condition B:  
Condition C:  
z
z
z
z
z
z
z
z
z
z
z
z
Engine Idling  
Sometimes it may be necessary to match blade pitch between  
the two sets of blades. There are some signs that this may be  
necessary. For example, the differences in pitch could cause a  
noticeable difference in finish quality between the two sets of  
blades.Or, the difference in blade pitch could make the machine  
difficult to control.This is due to the surface area in contact with  
the concrete (the blade set with the greater contact area tends to  
stick to the concrete more).  
Drive Pulley: Small  
Driven Pulley: Large  
Belt: Loose and Stationary  
Engine Accelerating  
Drive Pulley: Small But Increasing  
Driven Pulley: Large But Decreasing  
Belt: ApproachingTightness  
Engine At High Speed  
Drive Pulley: Large  
Matching Blade Pitch for Both Sets of Blades  
Trowels equipped with optional Twin PitchTM Controls may need  
to have blade pitch between the two sets of blades "syncronized".  
If the blades need to be syncronized this is easily accomplished  
by performing the following. Refer to Figure 28.  
Driven Pulley: Small  
Belt: Tight  
1.  
Lift the pitch adjustment handle on either side. Once lifted,  
that side is now disconnected from the Twin PitchTM system.  
Clutch  
2.  
3.  
Adjust to match the opposite side.  
When adjusted, lower the handle to Twin PitchTM operating  
position.  
This clutch system provides a high pulley ratio (a low gear- so to  
speak) to start out and a low pulley ratio (a high gear- so to  
speak) for a high speed operation, with infinite variation between  
the two.  
This means that it will not be necessary to give full throttle in  
order to "break the blades/pans loose". The machine can slowly  
be brought up to speed.  
A
B
The torque-sensitive pulley (Figure 27) utilizes a spring and cam.  
Peakperformanceresultsfromproperinteractionbetweenthedriven  
pulley spring and the ramp angle of the cam bracket.  
SPRING  
DRIVEN PULLEY  
CAM  
BRACKET  
FIXED FACE  
MOVEABLE  
FACE  
Figure 27. Pulley Spring and Cam Bracket  
A
B
Twin PitchTM disengaged (one side)  
Operating Position  
Figure 28. Pitch Towers  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 33  
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STR46SP — MAINTENANCE  
Figure 30 below illustrates the "correct alignment " for a spider  
plate (as shipped from the factory).  
Trowel Arm adjustment Procedure  
The following procedure should be  
followed to adjust trowel arms when  
it becomes apparent that the trowel  
is finishing poorly or in need of  
routine maintenance.  
NOTE  
A level, clean area to test the trowel prior to and after adjustement  
is essential. Any unlevel spots in the floor or debris under the  
trowel blades will give an incorrect perception of adjustment.  
Ideally, a 5' x 5' three-quarter inch thick flat steel plate should be  
used for testing.  
Figure 30. Correct Spider Plate Alignment  
2. Start engine, and bring trowel blades up to full speed and look  
forthefollowingconditions:  
Does the trowel have a perceived rolling or bouncing  
motion?  
1. To determine which blades need adjustment, place the  
trowelinthetestarea(three-quarterinchthickplate)andlook  
for the following conditions:  
Does the guard ring “rock up and down” relative to the  
ground?  
Pitch the blades as flat as possible and look at the  
adjustment bolts.They should all barely make contact  
with the lower wear plate on the spider. If you can see  
that one of them is not making contact, some adjustment  
will be necessary.  
Stabilizer Ring Removal  
1. Ifthetrowelisequippedwithanouterstabilizerring(Figure  
31), remove the four bolts at the end of each spider arm.  
Is the machine wearing out blades unevenly (i.e. one  
blade is completely worn out while the others look new)?  
STABILIZER  
RING  
Figure 29 below illustrates "worn spider bushings or bent  
trowel arms". Check to see that adjustment bolt is barely  
touching (0.10" max. clearance) lower wear plate. All alignment  
bolts should be spaced the same distance from the lower wear  
plate.  
REMOVE  
TO FREE  
SPIDER  
ASSEMBLY  
Figure 31 Stabilizer Ring  
Figure 29. Worn Arm Bushings  
2. Examine stabilizer ring for out of round or bends. If ring is  
damaged, replace ring. If ring is found to be correct with no  
damage,setaside.  
PAGE 34 — STR 31V  
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STR46SP — MAINTENANCE  
Trowel Arm Removal  
Trowel Blade Removal  
1. Each trowel arm is held in place at the spider plate by a hex  
head bolt (with zerk grease fitting). Remove the hex head  
bolt/zerk grease fitting from the spider plate. (Figure 32)  
1. Removethetrowelbladesfromthetrowelarmbyremoving  
thethreehexheadbolts(Figure34)fromthetrowelarm.Set  
blades aside.  
2. Remove the trowel arm from the spider plate.  
Figure 34. Trowel Blades  
1
2
Spider Plate  
Hex Head Bolt (Zerk Fitting)  
2. Wirebrushanybuild-upofconcretefromallsixsidesofthe  
trowel arm. Repeat this for the remaining three arms.  
Figure 32. Removing  
Zerk Grease Fitting  
3. Should the trowel arm inserts (bronze bushing ) come out  
withthetrowelarm,removethebushingfromthetrowelarm  
andsetasideinasafeplace.Ifthebushingisretained inside  
the spider plate, carefully remove the bushing.  
4. Examinethebronzetrowelarmbushinginsert(Figure 33),  
cleanif necessary.Replacebushingifout-of-roundorworn.  
Figure 33. Bronze Bushings  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 35  
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STR46SP — MAINTENANCE  
Checking Trowel Arm Straightness  
3. Next, checktheclearancebetweentheroundshaftandthe  
testsurfaceasoneoftheflathexsectionsofthearmrestson  
thetestsurface. Rotatethearmtoeachoftheflathexsections  
and check the clearance of the round shaft. Use a feeler  
gauge of .005" (0.127 mm). Each section should have the  
sameclearance betweentheroundofthetrowelarmshaft  
andthetestsurface.  
Trowel arms can be damaged by rough handling, (such as dropping  
the trowel on the pad), or by striking exposed plumbing, forms, or  
rebar while in operation. A bent trowel arm will not allow the trowel  
to operate in a smooth fluid rotation. Ifbenttrowelarmsaresuspect,  
check for flatness as follows, refer to Figures 35 and 36:  
4. If the trowel arm is found to be uneven or bent, replace the  
trowelarm.  
Trowel Arm Adjustment  
Shown in (Figure 39, Page 39) is the adjustment fixture with a  
trowelarminserted.Aseachtrowelarmislockedintothefixture,  
thearmboltisadjustedtowhereitcontactsastoponthefixture.  
This will consistently adjust all of the trowel arms, keeping the  
finisher as flat and evenly pitched as possible.  
1
2
3
4
5
6
Trowel Arm Round Shaft Section  
Trowel Arm Hexagonal (Hex) Shaft Section  
Lever Mounting Slot (Left Arm Shown)  
Roll Pin Hole  
Blade Attachment Bolt Hole (One ofThree)  
Flat of Hexagonal Shaft (Top of Arm)  
1. LocatethetrowelarmadjustmenttoolP/N9177.  
Figure 35. Trowel Arm  
1. Use a thick steel plate, granite slab or any surface which is  
true and flat, to check all six sides of each trowel arm for  
flatness.  
2. Check each of the six sides of the trowel arm (hex section).  
Afeelergaugeof.004"(0.10mm)shouldnotpassbetween  
theflatofthetrowelarmandthetestsurfacealongitslength  
on the test surface. (Figure 36, Item 3) .  
SIDEVIEW  
1
2
3
4
Adjustment Bolt  
"Distance"  
Locking Nut  
Fixture Arm  
Figure 37. Trowel Arm AdjustmentTool SideView  
2. Ensurethefixturearmisinthepropersetting(upordown)for  
your trowel arm rotation as shown in Figure 38.  
Arms with CLOCK-WISE blade  
rotation use the fixture arm in the UP  
1
2
3
4
Trowel Arm  
FlatTest Surface  
Feeler Gauge (.004 in. / 0.10 mm)  
Feeler Gauge (.005 in. / 0.127 mm))  
position (A in Figure 38). Arms with  
NOTE  
COUNTER CLOCK-WISE blade  
rotation use the fixture with the fixture  
arm in the DOWN position. (B in Figure  
38).  
Figure 36. Checking Trowel Arm Flatness  
PAGE 36 — STR 31V  
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STR46SP — MAINTENANCE  
4. Useanallenwrenchtotightenthelockingboltssecuringthe  
trowel arm in place.  
5. Adjust the bolt "distance" shown in Figure 37 to match one  
of the arms.The other arms will be adjusted to match this  
distance.  
6. Loosenthelockingnutonthetrowelarmlever,thenturnthe  
trowel arm adjusting bolt until it barely touches (.010") the  
fixtureadjustingbolt.  
7. Oncethecorrectadjustmentismade,tightenthelocknuton  
the trowel arm to lock in place.  
8. Loosen locking nuts on the adjustment fixture, and remove  
trowelarm.  
Figure 38. Trowel Arm Adjustment Setup  
9. Repeat steps for the remaining trowel arms.  
3. Unscrewthelockingboltsontheadjustmenttoolandplace  
thetrowelarmintothefixturechannelasshowninFigure39  
Athinshimmayberequiredtocoverthebladeholesonthe  
trowelarm. Makesuretoalignthetroweladjustmentboltwith  
thefixtureadjustmentbolt.  
Re-Assembly  
1. Clean and examine the upper/lower wear plates and thrust  
collar.Examine the entire spider assembly.Wire brush any  
concreteorrustbuild-up.Ifanyofthespider componentsare  
found to be damaged or out of round, replace them.  
2. Makesurethatthebronzetrowelarmbushingisnotdamage  
oroutofround.Cleanthebushingifnecessary.Ifthebronze  
bushing is damaged or worn, replace it.  
3. Reinstall bronze bushing onto trowel arm.  
4. Repeat steps 2 -3 for each trowel arm.  
5. Makesurethatthespringtensionerisinthecorrectposition  
to exert tension on the trowel arm.  
6. Insertalltrowelarmswithleversintospiderplate(withbronze  
bushingalreadyinstalled)usingcaretoaligngreaseholeon  
bronze bushing with grease hole fitting on spider plate.  
1
2
3
4
5
6
7
8
9
Arm  
Trowel Arm Lever  
Fixture Arm  
Adjustment Bolt  
Distance = .010 Inch  
Adjustment Bolt  
Trowel Arm Adjustment Fixture  
Locking Bolts  
7. Locktrowelarmsinplacebytighteningthehexheadboltwith  
zerk grease fitting and jam nut.  
8. Re-install the blades onto the trowel arms.  
9. Install stabilizer ring onto spider assembly.  
10. Lubricate all grease points (zerk fittings) with premium  
"Lithum 12" based grease, conforming to NLG1 Grade #2  
consistency.  
Shim  
Figure 39. Trowel Arm Adjustment Fixture Components  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 37  
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STR46SP — MAINTENANCE  
Installing Pans Onto Finisher Blades  
1. Lift trowel just enough to slide pan under blades. Lower  
finisher onto pan with blades (Item #1) adjacent to Z-Clips  
(Item#4).  
Theserounddiscssometimesreferredtoas"pans" attachtothe  
spiders arms and allow early floating on wet concrete and easy  
movement from wet to dry areas.They are also very effective in  
embedding large aggregates and surface hardeners.  
2. Rotate blades into position under Z-Clips. Ensure that the  
bladesarerotatedinthedirectionoftravelwhenthemachine  
is in operation or use the engine to rotate the blades into  
position.  
3. Attachthebladetie-downs(Item#3) to thefarsideoftheZ-  
Clip brackets (Item #4) with tie-down knobs (Item #2) as  
shown in Figure 40.  
4. Check to make certain that the blade edges are secured  
undertheZ-Clipsandthetie-downsaresecuredcompletely  
overtheedgesofthebladebarbeforethemachineisputback  
intooperation.  
WARNING  
ALWAYS install pans either on the work area or on an area  
that is next to and level with the work area. DO NOT lift the  
trowel when the pans are attached.  
Decommissioning Trowel/Components  
Decommissioningisacontrolledprocessusedtosafelyretirea  
pieceofequipmentthatisnolongerserviceable. Iftheequipment  
poses an unacceptable and unrepairable safety risk due to wear  
or damage or is no longer cost effective to maintain, (beyond life-  
cycle reliability) and is to be decommissioned, (demolition and  
dismantlement), thefollowingproceduremusttakeplace:  
Refer to Figure 40 when installing pans onto finisher blades.  
1. Drainallfluidscompletely. Thesemayincludeoil, gasoline,  
hydraulic oil and antifreeze. Dispose of properly in accor-  
dancewithlocalandgovernmentalregulations.Neverpour  
on ground or dump down drains or sewers.  
2
3
2. Remove battery and bring to appropriate facility for lead  
reclamation. Usesafetyprecautionswhenhandlingbatter-  
ies that contain sulfuric acid, (See page 14).  
3. The remainder can be brought to a salvage yard or metal  
reclamationfacilityforfurtherdismantling.  
1
4
1
2
3
4
BLADE ASSEMBLY  
KNOB,TIE-DOWN Z-CLIP PANS  
TIE-DOWN, BLADE  
Z-CLIP, PAN  
Figure 40. Z-Clip Finisher Pan Installation  
PAGE 38 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 38  
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STR46SP TROUBLESHOOTING (ENGINE)  
TABLE 5. ENGINE TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Fuel tank is empty.  
Fill fuel tank.  
Shut-off valve is closed.  
Fuel line has suction leak or  
Open fuel shut-off valve.  
Check fuel line condition and fuel line clamps.  
is restricted. Fuel filter, or fuel Ensure that fuel line is not kinked. Check fuel filter  
tank cap vent is obstructed.  
for restriction and replace if necessary. Check fuel  
cap vent and clean or replace as necessary.  
Fuel supply is contaminated. Drain and clean fuel tank, clean tank and refill with  
fuel.  
Engine Cranks But  
Will Not Start  
If carbureted, carburetor is  
underchoked or overchoked.  
Apply recommended amount of choke for cold and  
warm weather.  
Spark plug is fouled,  
improperly gapped, or  
damaged. Spark plug leads  
disconnected.  
Check spark plug for fouling, check gap, and  
inspect for damage. Clean or replace spark plug  
as necessary. Reattach spark plug leads if  
disconnected.  
Safety stop switch  
malfuntion.  
Ensure that the Safety Stop Switch is functioning  
when the operator is seated; replace switch if  
necessary.  
Fuel tank is empty.  
Fill fuel tank.  
Shut-off valve is closed.  
Open fuel shut-off valve.  
Fuel line has suction leak or  
is restricted. Fuel filter is  
obstructed, or fuel tank cap  
vent is blocked.  
Check fuel line condition and fuel line clamps.  
Ensure that fuel line is not kinked. Check fuel filter  
for restriction and replace if necessary. Check fuel  
cap vent and clean or replace as necessary.  
Engine Starts But  
Will Not Continue  
Running  
If engine is carbureted,  
Apply recommended amount of choke for cold and  
carburetor is underchoked or warm weather.  
over choked.  
Faulty ignition switch or  
starter.  
Replace defective switch or starter.  
Engine is seized.  
Repair or replace engine.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 39  
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STR46SP TROUBLESHOOTING (ENGINE)  
TABLE 5 CONT.. ENGINE TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Air filter is obstructed.  
Replace air filter.  
Altitude causes 3% loss of  
horsepower per 1000 feet of  
altitude.  
If available, install high altitude jets in carburetor.  
Choke is partially closed.  
Open choke.  
Faulty spark plugs or spark  
plug leads. Spark plug lead  
disconnected.  
Replace spark plugs or spark plug leads if faulty.  
Reattach spark plug lead if disconnected.  
Engine Lacks  
Power  
Fuel is contaminated.  
Drain and clean fuel tank. Refill with clean fuel.  
There is a lack of lubrication. Check engine oil.  
Engine is overheated  
Allow engine to cool. Find and repair cause of  
overheating.  
Exhaust is restricted.  
Remove or repair restriction.  
Ignition timing incorrect.  
Set engine ignition timing to manufacturer's  
specification.  
Ignition timing incorrect.  
Fuel mixture is too lean.  
Exhaust is restricted.  
Set engine ignition timing to manufacturer's  
specification.  
Look for intake system leak. Repair any leaks  
found.  
Remove or repair restriction.  
Replace fan shroud.  
Engine Overheats  
Fan shroud or fan is broken  
or missing.  
Coolant level is low.  
Fill radiator when cool. Add coolant to fill line on  
reservoir.  
Low or Hi crankcase oil level  
Check engine oil. Fill if low, drain if overfilled.  
Charge and test battery. Replace if defective.  
Battery is discharged or  
defective.  
Loose or faulty wires or  
connections.  
Inspect wiring, repair any bad connections or  
wires.  
Engine Will Not  
Crank  
Faulty ignition switch or  
starter.  
Replace defective switch or starter.  
Engine is seized.  
Repair or replace engine.  
PAGE 40 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 40  
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STR46SP TROUBLESHOOTING (TROWEL)  
TABLE 6. TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Make sure that the Safety Stop Switch is functioning when the  
operator is seated; replace switch if necessary.  
Safety Stop Switch malfunction?  
Look at the fuel system. Make sure there is fuel being supplied to  
the engine. Check to ensure that the fuel filter is not clogged.  
Fuel?  
Engine running rough or not  
at all.  
Check to ensure that the ignition switch has power and is  
functioning correctly.  
Ignition?  
Other problems?  
Consult engine manufacturer’s manual.  
Check wiring. Replace as necessary.  
Loose wire connections?  
Safety Stop Switch not  
functioning.  
Bad contacts?  
Blades?  
Replace switch.  
Make certain blades are in good condition, not excessively worn.  
Finish blades should measure no less than 2" (50mm) from the  
blade bar to the trailing edge, combo blades should measure no  
less that 3.5" (89mm). Trailing edge of blade should be straight  
and parallel to the blade bar.  
Check that all blades are set at the same pitch angle as  
measured at the spider. A field adjustment tool is available for  
height adjustment of the trowel arms (see Optional Equipment).  
Spider?  
Check the spider assembly for bent trowel arms. If one of the  
arms is even slightly bent, replace it immediately.  
Bent trowel arms?  
Check the trowel arm bushings for tightness. This can be done by  
moving the trowel arms up and down. If there is more than 1/8"  
(3.2 mm) of travel at the tip of the arm, the bushings should be  
replaced. All bushings should be replaced at the same time.  
If trowel “bounces, rolls  
concrete, or makes uneven  
swirls in concrete”.  
Trowel arm bushings?  
Check the flatness of the thrust collar by rotating it on the spider.  
If it varies by more than 0.02" (0.5 mm) replace the thrust collar.  
Thrust collar?  
Check the thrust collar by rocking it on the spider. If it can tilt  
more than 1/16" (1.6 mm) [as measured at the thrust collar O.D.],  
replace the bushing in the thrust collar.  
Thrust collar bushing?  
Check the thrust bearing to see that it is spinning free.  
Replace if necessary.  
Thrust bearing worn?  
Blade pitch?  
Check blades for consistent pitch. Adjust per Maintenance section  
instructions if necessary.  
The main output shaft of the gearbox assembly should be  
checked for straightness. The main shaft must run straight and  
cannot be more than 0.003" (0.08 mm) out of round at the spider  
attachment point.  
Main shaft?  
Yoke?  
Machine has a perceptible  
rolling motion while running.  
Check to make sure that both fingers of the yoke press evenly on  
the wear cap. Replace yoke as necessary.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 41  
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STR46SP TROUBLESHOOTING (TROWEL)  
TABLE 6. TROUBLESHOOTING (CONTINUED)  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Check all electrical connections, including the master on/off switch  
and check to see if wiring is in good condition with no shorts.  
Replace as necessary.  
Wiring?  
Lights not working.  
Lights?  
Check to see if light bulbs are still good. Replace if broken.  
Check the tank to make sure retardant is present. Fill tank as  
necessary.  
Retardant?  
Check all electrical connections, including master on/off switch  
connections. Replace components and wiring as necessary.  
Wiring?  
Retardant spray not  
working.  
Check the continuity of master on/off switch. Replace if broken.  
Bad switch?  
If pump has a voltage present when the switch is turned on, but  
does not operate and electrical connections to the pump are  
good, replace the pump.  
Bad spray pump?  
Worn components?  
Check for wear of steering bearings and linkage components  
replace if necessary.  
Steering is unresponsive.  
Check to ensure free movement at pivot bushings.  
Adjust seat with lever located on the front of the seat.  
Pivots?  
Operating position is  
uncomfortable.  
Seat adjusted for operator?  
Make sure that both crank handles are pushed down as far as  
possible. Doing this ensures that the linkage is engaged.  
Crank handles?  
Broken part?  
Linkage on Twin Pitch not  
working.  
Replace all broken parts immediately.  
PAGE 42 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 42  
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STR46SP — NOTES  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 43  
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STR46SP — EXPLANATION OF CODE IN REMARKS COLUMN  
The following section explains the different symbols and remarks QTY. Column  
used in the Parts section of this manual. Use the help numbers  
found on the back page of the manual if there are any questions.  
Numbers Used - Item quantity can be indicated by a number,  
a blank entry, or A/R.  
A/R (As Required) is generally used for hoses or other parts  
that are sold in bulk and cut to length.  
The contents and part numbers listed in the parts section are  
subject to change without notice. Multiquip does not  
guarantee the availibility of the parts listed.  
A blank entry generally indicates that the item is not sold  
separately. Other entries will be clarified in the “Remarks”  
Column.  
REMARKS Column  
Sample Parts List:  
Some of the most common notes found in the “Remarks”  
Column are listed below. Other additional notes needed to  
describe the item can also be shown.  
NO. PART NO. PART NAME  
QTY. REMARKS  
1
2
2
3
4
12345  
BOLT ....................... 1.... INCLUDES ITEMS W/  
WASHER, 1/4 IN. ........... NOT SOLD SEPARATELY  
WASHER, 3/8 IN. .... 1.... MQ-45TONLY  
HOSE .................... A/R.. MAKE LOCALLY  
BEARING ................ 1.... S/N2345B AND ABOVE  
*
*
*
12347  
12348  
12349  
Assembly/Kit - All items on the parts list with the same unique  
symbol will be included when this item is purchased.  
Indicated by:  
“INCLUDES ITEMS W/(unique symbol)”  
NO. Column  
Unique Symbols - All items with same unique symbol  
Serial Number Break - Used to list an effective serial number  
range where a particular part is used.  
( , #,  
+
, %, or >) in the number column belong to the same  
*
assembly or kit, which is indicated by a note in the “Remarks”  
column.  
Indicated by:  
“S/N XXXXX AND BELOW”  
“S/N XXXX AND ABOVE”  
“S/N XXXX TO S/N XXX”  
Duplicate Item Numbers - Duplicate numbers indicate  
multiple part numbers are in effect for the same general item,  
such as different size saw blade guards in use or a part that  
has been updated on newer versions of the same machine.  
Specific Model Number Use - Indicates that the part is used  
only with the specific model number or model number variant  
listed. It can also be used to show a part is NOT used on a  
specific model or model number variant.  
When ordering a part that has more  
than one item number listed, check  
the remarks column for help in  
determining the proper part to order.  
NOTE  
Indicated by:  
“XXXXX ONLY”  
“NOT USED ON XXXX”  
“Make/Obtain Locally” - Indicates that the part can be  
purchased at any hardware shop or made out of available  
items. Examples include battery cables, shims, and certain  
washers and nuts.  
PART NO. Column  
Numbers Used - Part numbers can be indicated by a number,  
a blank entry, orTBD.  
“Not Sold Separately” - Indicates that an item cannot be  
purchased as a separate item and is either part of an  
assembly/kit that can be purchased, or is not available for  
sale through Multiquip.  
TBD (To Be Determined) is generally used to show a part that  
has not been assigned a formal part number at time of  
publication.  
A blank entry generally indicates that the item is not sold  
separately or is not sold by Multiquip. Other entries will be  
clarified in the “Remarks” Column.  
PAGE 44 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 44  
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STR46SP — SUGGESTED SPARE PARTS  
Qty.  
10  
1
P/N  
Description  
STR46SP KOHLER ENGINES  
10031 .................... WASHER 1/4 IN.  
12548 .................... SPRAY PUMP  
1 Unit  
1
392292 .................. SPRAY NOZZEL  
1
2108 ...................... CAP, SPRAYTANK  
Qty.  
4
P/N  
Description  
1
2673 ...................... CIRCUIT BREAKER 30A, 12V  
4682 ...................... TOGGLE SWITCH  
21495 ............TROWEL ARM, LH  
2829 ..............TROWEL ARM, RH  
11903 ............LEVERTROWEL ARM (L.S.)  
11904 ............LEVERTROWEL ARM (R.S.)  
20938 ............THRUST COLLAR KIT  
12785 ............SPIDER KIT  
1
4
1
8381 ...................... BOOT, TOGGLE SWITCH  
12005 .................... ENGINE-OFF SAFETY SWITCH  
12018 .................... CONNECTOR, RELAY  
12017 .................... RELAY, ENGINE-OFF SWITCH  
2405002S.............. FUEL FILTER, PRIMARY, 27 HP  
2405010S.............. FUEL FILTER, SECONDARY, 27 HP  
0450905002 .......... FUEL FILTER, CANNISTER 28 HP  
2439320S.............. FUEL PUMP, 28 HP  
4
1
4
1
2
1
2
1
20  
20  
20  
4
0166 A ...........WASHER  
1
1876 ..............JAM NUT  
1
0164 B ...........SCREW  
1
11039 ............BUSHING  
1
2408303S.............. ELEMENT, AIR FILTER 27/28 HP  
2408303S.............. ELEMENT, PRE-CLEAN 27/28 HP  
5205002S.............. OIL FILTER, 27HP  
4
4
11595 ............SPRING (L.S.)  
1
11594 ............SPRING (R.S.)  
1
20  
20  
20  
4
1875 ..............WASHER  
1
1205001S.............. OIL FILTER, 28, HP  
1322 ..............SCREW ASSY, ARM RETAINING  
1162 A ...........CAP GREASE FITTING  
0131 A ...........SCREW (HHC 1/4 - 20 X 3/4)  
0948 ..............WASHER, FLAT  
2
2513212S.............. SPARK PLUG, 27 HP  
2
1213202S.............. SPARK PLUG, 28 HP  
1
20138 .................... BELT, CVT-COMET  
4
1
1
5475521S.............. REGULATOR, RECTIFIER 27HP  
2540308S.............. REGULATOR, RECTIFIER 28HP  
20138 ............BELT, DRIVE CVT  
0181 B ...........WASHER 1/4 IN  
11418 ............FUEL CAP/GAUGE (ENG)  
19633 ............BUSHING, RUBBER FUEL  
2124 ..............CABLE, THROTTLE (FOOT PEDAL)  
1
20  
1
1
1
1
2153 ..............ROD END, FEM RH (THROTTLE CABLE)  
11143 ............ROD END, FEM RH 1/2 - 20 (STEERING)  
2063 ..............ROD END, MALE RH 3/8 - 24 (STEERING)  
11142 ............ROD END, MALE RH 1/2 - 20 (STEERING)  
6
4
2
4
......................BLADE ASSY.CONTACT UNIT SALES DEPT/ ACCESSORY ITEM  
Part numbers on this Sug-  
gested Spare Parts List may  
supersede/replace the P/N  
shown in the text pages of  
this book.  
NOTE  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 45  
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STR46SP — NAMEPLATE AND DECALS  
NAMEPLATE AND DECALS  
PAGE 46 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 46  
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STR46SP — NAMEPLATE AND DECALS  
NAMEPLATE AND DECALS  
NO.  
1
PART NO.  
PART NAME  
QTY.  
REMARKS  
11246  
DECAL SET, INTERNATIONAL STDS ...................1............. INCLUDES ITEMS W/  
*
1A  
DECAL, BELT DRIVE  
DECAL, GEAR DRIVE  
DECAL, CHECK OIL  
DECAL, HOT SURFACE  
DECAL, LIFT POINT  
1
1
1
1
1
1
1
1
1
1
1
1
2
2
*
1B  
1C  
1D  
1E  
1F  
*
*
*
*
DECAL, LUBRICATION  
*
1G  
DECAL, CLOCKWISE ROTATION  
DECAL, COUNTER-CLOCKWISE ROTATION  
DECAL, POWDER COATED  
DECAL, STOW  
DECAL, AL PITCH RH  
DECAL, AL PITCH LH  
DECAL, SPRING SAFETY  
DECAL, MQ-WHITEMAN RED/TOWER  
DECAL, SAFETY CLOTHING ISO BLUE ...............1............. REPLACES 11247  
DECAL, CONTROL PANEL  
DECAL, STR46 SERIES  
SERIAL PLATE.......................................................1............. CONTACT PARTS DEPT.  
DECAL, READ OPERATOR'S MANUAL  
DECAL, “CE”  
DECAL, ROTATING BLADE HAZARD  
DECAL, WARNING “PROP 65”  
DECAL, LIFTING, CRUSH HAZARD STX-55J6  
DECAL, VENTILATION 2XFWRSDPU  
*
*
1H  
2
3
13118  
11111  
2300  
2332  
2634  
1499  
36099  
2814  
TBD  
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
1
1
35137  
11092  
35168  
20525  
21455  
36090  
1
1
2
1
1
1
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 47  
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STR46SP — PIVOT ASSY. (RIGHT/LEFT)  
PIVOT ASSY. (RIGHT/LEFT)  
PAGE 48 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 48  
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STR46SP — PIVOT ASSY. (RIGHT/LEFT)  
PIVOT ASSY. (RIGHT/LEFT)  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
1023  
0166 A  
2304  
PART NAME  
QTY.  
16  
20  
4
1
4
1
4
2
2
1
2
1
4
REMARKS  
SCREW, HHC 3/8 - 16 X 1-1/4  
WASHER, LOCK, 3/8 MED.  
ROCKER BLOCK WITH BUSHING  
PIVOT, DOUBLE ROCKER  
SCREW, SHS 5/16 - 18 X 5/16  
ARM, PIVOT RIGHT  
2146  
10138  
12412  
4196  
5054 A  
8136  
12413  
2312  
2145  
SCREW, HHC 3/8 - 16 X 3/4  
WASHER, LOCK 1/2 MED  
SCREW, HHC 1/2 - 20 X 1-1/2  
ARM, PIVOT LEFT  
ROCKER BLOCK, WITH SET  
PIVOT JOINT, SINGLE ROCKER  
SCREW, FHSC 3/8 - 16 X 1  
PLATE, GEARBOX ADAPTOR  
9
10  
11  
12  
13  
14  
1394  
11248  
2
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 49  
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STR46SP — STEERING HANDLES ASSY. (RIGHT/LEFT)  
STEERING HANDLES ASSY. (RIGHT/LEFT)  
PAGE 50 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 50  
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STR46SP — STEERING HANDLES ASSY. (RIGHT/LEFT)  
STEERING HANDLES ASSY. (RIGHT/LEFT)  
NO.  
1
2
3
4
PART NO.  
0189  
11142  
11177-1  
2197  
PART NAME  
QTY.  
1
3
2
2
REMARKS  
GRIP, HANDLE LT  
ROD END, 1/2 - 20 MALE RH  
HANDLE, TUBE  
NUT, ACORN, 1/4 - 20  
5
6
7
8
5277  
SCREW HHC 1/4 - 20 X 1-1/2  
HANDLE, STEERING, LOWER  
SPACER, ROD END  
ROD END, 1/2 - 20 FEMALE RH  
THREADPIECE, 1/2 - 20 X 2 PLTD  
NUT, HEX JAM 1/2 - 20  
SCREW, SHC 1/2 - 20 X 2 PLTD  
NUT, NYLOC 3/8 -16  
2
2
5
3
1
5
1
8
1
1
1
1
3
2
8
16  
2
12425-1  
11141  
11143  
11173  
11146  
11144  
10133  
11145  
0131 A  
11205  
10024  
0447  
12426  
1023  
10136  
2219  
10176  
12193  
2267  
EM963105  
8151  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
SCREW, SHC 1/2 -20 X 3 PLTD  
SCREW HHC 1/4 - 20 X 3/4  
ROD, L/R MOTION  
NUT, NYLOC 1/4 - 20  
WASHER, FLAT 1/2 SAE  
NUT, SLOTTED 3/4 - 16 PLTD  
SCREW, HHC 3/8 - 16 X 1-1/4 GR5  
WASHER, FLAT SAE 3/8  
PIN, COTTER 1/8 X 1-1/2  
NUT, NYLOC 1/2 - 13  
LEVER, L/R CONTROL  
GRIP, HANDLE RT  
SCREW, HHC 1/2 - 13 X 2 .....................................3.................. REPLACES 6159 A  
2
1
1
WASHER, FLAT SAE 3/4  
4
1
1
4
4
4
4
12374-1  
12375-1  
0735  
0735 A  
11149  
11138  
STEERING CONTROL RS ASSIST  
STEERING CONTROL LS ASSIST  
BEARING CUP, TIMKEN #A6157  
BEARING CONE TIMKEN #A6075  
BEARING, SB-204-12  
BEARING HSG, P-BLOCK 47MPB(2PC)  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 51  
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STR46SP — STEERING ASSIST CONTROL ASSY. (RIGHT/LEFT)  
STEERING ASSIST CONTROL ASSY. (RIGHT/LEFT)  
PAGE 52 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 52  
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STR46SP — STEERING ASSIST CONTROL ASSY. (RIGHT/LEFT)  
STEERING ASSIST CONTROL ASSY. (RIGHT/LEFT)  
NO.  
1
2
PART NO.  
11146  
11142  
PART NAME  
NUT, HEX JAM 1/2 -20 PLTD  
ROD END, 1/2 - 20 MALE RH  
QTY.  
6
6
REMARKS  
3
4
5
6
EM963105  
10176  
12200  
SCREW, HHC 1/2 -13 X 2 ....................................10 .................. REPLACES 6159 A  
NUT, NYLOC 1/2 -13  
STEERING ASSIST ASSEMBLY  
WASHER, FLAT 1/2 SAE  
10  
2
0447  
8
7
8
9
10  
11  
12  
13  
11143  
5054 A  
8136  
11127-1  
0131 A  
11150  
ROD END, 1/2 - 20 FEMALE RH  
WASHER, LOCK 1/2 MED  
SCREW, HHC 1/2 - 20 X 1-1/2  
LEVER, STEERING CONTROL  
SCREW/ HHC 1/4 - 20 X 3/4  
BEARING, SB-201 - 8  
4
2
2
2
12  
6
6
11139  
HOUSING SET, BEARING FLANGE 40M-2  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 53  
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STR46SP — GEARBOX ASSY. (RIGHT)  
GEARBOX ASSY (RIGHT)  
PAGE 54 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 54  
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STR46SP — GEARBOX ASSY. (RIGHT)  
GEARBOX ASSY (RIGHT)  
NO.  
PART NO.  
12906  
5031 A  
0948  
12981  
12765  
0121 A  
10989  
12908  
1132  
12583  
9045  
0232 A  
2309  
PART NAME  
QTY.  
REMARKS  
1%  
SHAFT, GEARBOX INPUT W/FAN  
SCREW, RHM 1/4-20 X1/2  
WASHER, FLAT, 1/4 SAE  
SHROUD, GB FIN COVER, RIGHT  
1
4
5
1
2
%
3
%
4
%
5
%
GEAR BOX HD RIDER 1-1/4 SHAFT .....................1.................. HOUSING ONLY  
FITTING, PLUG 3/8MP SQUARE HEAD  
STUD, N10 - 32 X 3/4  
6
%
3
1
1
1
1
2
2
2
7
%
8
%
RIGHT HANDWORM  
VENT, AIR  
SPACER, X 11D X 1.168L  
BEARING, CONE TIMKEN #1986  
BEARING, CUP, TIMKEN #1932  
O-RING, 2 -13/16VINTON  
9
%
10%  
11  
12  
13+  
14+  
%
%
%
%
*
*
GASKET, RED........................................................1.................. SOLD AS KIT ONLY  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
%
%
2307  
FLANGE, COUNTERSHAFT  
WASHER, EXT SHKP 1/4  
SCREW, HHC 1/4-20 X 7/8  
SEAL, OIL, NATIONAL #471689V  
FAN, RIGHT (CW)  
SCREW, HHC 1/4-20 X 1  
SCREW, HHC, WASHER 10-32 X 1/2  
WASHER, FLAT #10 SAE  
NUT, NYLOC 10-32  
2
8
8
2
1
1
1
4
1
1
TBD  
%
%
%
%
%
%
%
%
2295  
12909  
10921  
0730  
19477  
2203  
10019  
10894  
12788  
2618  
RIGHT-SIDE FAN COVER  
GEAR BOX ASSY., COMPLETE RIGHT-SIDE.......1.................. INCLUDES ITEMS W/  
GASKET KIT ..........................................................1.................. INCLUDES ITEMS W/+  
BEARING KIT ........................................................1.................. INCLUDES ITEMS W/  
SCREW, FHSC 3/8 - 24 X 3/4 PLAIN  
RETAINER, DRIVEN PULLEY  
COUPLER - 7/8” ID  
KEY, 1/4 X1/4 X13/16  
SCREW, SHS 10-32 X1/4  
KEY, WOODRUFF #21 HARDENED  
SEAL, 1-1/4 DIA NAT # 471766V  
SCREW, FHS 5/16 -18 X 1  
RING, SNAP TRUARC #5100 - 125  
COVER, HD GEARBOX 1-1/4 SHAFT  
O-RING, A - 264 VITON  
%
%
%
%
%
%
%
%
12833  
1313  
*
1
1
1
1
1
1
1
4
1
1
1
2
2
1
1
1
9120  
2048  
2323  
10450  
1139  
34+  
%
12769  
20875  
12770  
12766  
9038  
35  
36  
37  
%
%
%
38+  
39  
%
%
%
12767  
12768  
12764  
9180  
BEARING, CUP, TIMKEN #15245  
BEARING, CONE TIMKEN #15126  
SHAFT, MAIN HD RIDER 1-1/4 SHAFT  
KEY, 5/16 X 2 -1/4 HRDND  
*
%
%
%
40  
*
41  
42  
43  
12772  
GEAR, WORM RH. HT 1-1/4  
44+  
45+  
46+  
47+  
48+  
%
%
%
%
%
GASKET, RED........................................................1.................. SOLD AS KIT ONLY  
GASKET, GREEN ..................................................1.................. SOLD AS KIT ONLY  
GASKET, BLUE ......................................................1.................. SOLD AS KIT ONLY  
GASKET, BROWN..................................................1.................. SOLD AS KIT ONLY  
GASKET, YELLOW.................................................1.................. SOLD AS KIT ONLY  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 55  
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STR46SP — GEARBOX ASSY. (LEFT)  
GEARBOX ASSY (LEFT)  
PAGE 56 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 56  
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STR46SP — GEARBOX ASSY. (LEFT)  
GEARBOX ASSY (LEFT)  
NO.  
PART NO.  
12906  
5031 A  
0948  
12982  
12765  
0121 A  
10989  
12907  
1132  
12583  
9045  
0232 A  
2309  
PART NAME  
QTY.  
REMARKS  
1%  
SHAFT, GEARBOX INPUT W/FAN  
SCREW, RHM 1/4-20 X1/2  
WASHER, FLAT, 1/4 SAE  
SHROUD, GB FIN COVER, LEFT  
1
4
5
1
2
%
3
%
4
%
5
%
GEAR BOX HD RIDER 1-1/4 SHAFT .....................1.................. HOUSING ONLY  
FITTING, PLUG 3/8MP SQUARE HEAD  
STUD, N10 - 32 X 3/4  
6
%
3
1
1
1
1
2
2
2
7
%
8
%
LEFT HAND WORM  
VENT, AIR  
SPACER, X 11D X 1.168L  
BEARING, CONE TIMKEN #1986  
BEARING, CUP, TIMKEN #1932  
O-RING, 2 -13/16VINTON  
9
%
10%  
11  
12  
13+  
14+  
%
%
%
%
*
*
GASKET, RED........................................................1.................. SOLD AS KIT ONLY  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
%
%
2307  
FLANGE, COUNTERSHAFT  
WASHER, EXT SHKP 1/4  
SCREW, HHC 1/4-20 X 7/8  
SEAL, OIL, NATIONAL #471689V  
FAN, LEFT (CCW)  
SCREW, HHC 1/4-20 X 1  
SCREW, HHC, WASHER 10-32 X 1/2  
WASHER, FLAT #10 SAE  
NUT, NYLOC 10-32  
2
8
8
2
1
1
1
4
1
1
TBD  
%
%
%
%
%
%
%
%
2295  
12909  
10922  
0730  
19477  
2203  
10019  
10893  
12789  
2618  
LEFT-SIDE FAN COVER  
GEAR BOX ASSY., COMPLETE LEFT-SIDE .........1.................. INCLUDES ITEMS W/  
GASKET KIT ..........................................................1.................. INCLUDES ITEMS W/+  
BEARING KIT ........................................................1.................. INCLUDES ITEMS W/  
SCREW, FHSC 3/8 - 24 X 3/4 PLAIN  
RETAINER, DRIVEN PULLEY  
COUPLER - 7/8” ID  
KEY, 1/4 X1/4 X13/16  
SCREW, SHS 10-32 X1/4  
KEY, WOODRUFF #21 HARDENED  
SEAL, 1-1/4 DIA NAT # 471766V  
SCREW, FHS 5/16 -18 X 3/4  
RING, SNAP TRUARC #5100 - 125  
COVER, HD GEARBOX 1-1/4 SHAFT  
O-RING, A - 264 VITON  
%
%
%
%
%
%
%
%
12833  
1313  
*
1
1
1
1
1
1
1
4
1
1
1
2
2
1
1
1
9120  
2048  
2323  
10450  
1139  
34+  
%
12769  
20875  
12770  
12766  
9038  
35  
36  
37  
%
%
%
38+  
39  
%
%
%
12767  
12768  
12764  
9180  
BEARING, CUP, TIMKEN #15245  
BEARING, CONE TIMKEN #15126  
SHAFT, MAIN HD RIDER 1-1/4 SHAFT  
KEY, 5/16 X 2 -1/4 HRDND  
*
%
%
%
40  
*
41  
42  
43  
12771  
GEAR, WORM LH. HT 1-1/4  
44+  
45+  
46+  
47+  
48+  
%
%
%
%
%
GASKET, RED........................................................1.................. SOLD AS KIT ONLY  
GASKET, GREEN ..................................................1.................. SOLD AS KIT ONLY  
GASKET, BLUE ......................................................1.................. SOLD AS KIT ONLY  
GASKET, BROWN..................................................1.................. SOLD AS KIT ONLY  
GASKET, YELLOW.................................................1.................. SOLD AS KIT ONLY  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 57  
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STR46SP — SINGLE PITCH HANDLE ASSY. (RIGHT/LEFT)  
SINGLE PITCH HANDLE ASSY. (RIGHT/LEFT)  
PAGE 58 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 58  
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STR46SP — SINGLE PITCH HANDLE ASSY. (RIGHT/LEFT)  
SINGLE PITCH HANDLE ASSY. (RIGHT/LEFT)  
NO  
PART NO  
PART NAME  
CRANK KNOB  
SPACER  
CRANK LEVER  
HARDENEDWASHER  
SHOULDER BOLT  
QTY.  
REMARKS  
1#%+ 4403  
2#%+ 3231  
3#%+ 2575  
4#%+ 1733  
5#%+ 1616  
2
2
2
2
2
6#%  
7#%  
8#%  
9#%  
10#%  
11#%  
12#%  
13#  
14#  
15#  
16#  
17#  
18#  
19#  
20#  
21#  
22#  
23#  
24#  
25#  
26#  
27#  
28#  
29#  
30  
2737  
2621  
1162A  
4014  
2332  
2300  
0185  
1617  
2170  
1604  
1111  
2367  
2169  
10646  
10382  
10721  
10723  
12460  
1116  
10548-1  
0202  
0300B  
5283  
KNOB KIT ...................................................................2........... INCLUDES ITEMS W/+  
FITTING GREASE  
2
2
4
1
1
2
CAP, GREASE ZERK #2  
SCREW, 2-3/16 P-K TYPE U DRIVE  
DECAL, AL PITCH, LH  
DECAL, AL PITCH, RH  
SCREW, SHSS 3/8-16 X 3/8"  
LEVER ASSY, TROWEL ADJUSTMENT....................2........... INCLUDES ITEMS W/%  
BEARING, RACE, TORR. #TRA1220  
BEARING, BALL THRUST E5 AETNA  
BEARING, ALUM.  
COLLAR, SET .75 X 1.25 X .56, 2 SET SCRW  
BEARING,THRUST, TORR.#NTA1220  
SHAFT, SPC CONTROL  
BOLT, SHOULDER, 3/8 X 3/8 LONG  
SLIDE BLOCK  
ROLL PIN  
CABLE ASSEMBLY 26.38"  
BRASS JAM NUT  
PITCH CONTROLTUBE  
SCREW, HHC 5/16-18  
FLAT WASHER 5/16"  
6
2
2
2
2
2
2
2
2
2
4
2
8
8
8
2
LOCK NUT 5/16-18  
SNAP RING  
10512  
11109-1  
PITCH ASSY...............................................................2........... INCLUDES ITEMS W/#  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 59  
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STR46SP — DRIVE ASSY.  
DRIVE ASSY.  
PAGE 60 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 60  
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STR46SP — DRIVE ASSY.  
DRIVE ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
21494  
20186  
300518C  
0126  
2090  
1146  
DRIVE ASSEMBLY, W/COMET.......................................1............ INCLUDES ITEMS W/  
*
2
3
PLATE, BEARING MOUNT  
KEY, 1/4 X 3/16 X 3"  
KEY, WOODRUFF #9  
RING, SNAP TRUARC #5100 - 106  
SCREW, FHSC 5/16 - 18 X 1 NYLOC  
WASHER, RETAINING  
2
1
4
4
2
2
1
2
1
4
4
1
1
1
1
1
3
*
*
4
5
*
*
6
7
*
2037  
2029  
*
8
9
COUPLER, 1 ID. RIDER  
*
10337  
20044  
10136  
10133  
21475  
20043  
20116  
21491  
12590  
20056  
2052  
11108  
1662  
0243  
0161 C  
2074  
2259  
BEARING, PILLOW BLOCK FAF YAK- 1  
SPACER, BEARING SHAFT  
WASHER, FLAT 3/8 SAE  
NUT, NYLOC 3/8 - 16  
PULLEY, CVT LOWER COMET 302538C  
SHAFT, DRIVE BEARING  
O-RING, SIZE- 031 BUNA  
PANEL, SPLASH RIGHT  
COUPLER, CV JOINT COMET CLUTCH  
SCREW, HHC 1/4 - 28 X 3/4 GRD. 8  
JOINT, CV W/BOOT ........................................................ 4............ INCLUDES ITEM W/%  
GASKET, CV JOINT BOOT  
TIE WRAP, BLACK  
SCREW, SHC 5/16 - 18 X 1-3/4  
WASHER, LOCK, 5/16 MEDIUM  
SHAFT, CV JOINT, 9.13 LG  
BOOT, CV JOINT  
SCREW, SHC 5/16 -18 X 2 -1/4 PLTD  
SHAFT, CV JOINT 10.81 LG  
SCREW, HHC 3/8-16 X 1-1/2 SS  
KEY, 3/16 X 11/16  
*
10  
*
11  
*
12  
*
13  
*
14  
*
15  
*
16  
*
17  
*
18  
*
19  
*
20  
*
4
4
3
12  
1
4
9
1
4
1
21  
*
22  
*
23  
*
24  
*
25 %  
*
26  
*
2186  
27  
*
10748  
20187  
10909  
28  
*
29  
*
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 61  
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STR46SP — ENGINE/MUFFLER/BELT ASSY.  
ENGINE/MUFFLER/BELT ASSY.  
PAGE 62 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 62  
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STR46SP — ENGINE/MUFFLER/BELT ASSY.  
ENGINE/MUFFLER/BELT ASSY.  
NO.  
1
2
3
4
5
7
8
9
10  
11  
12  
13  
15  
16  
17  
18  
29  
20  
21  
22  
PART NO.  
M841080S  
2404149S  
2507204S  
M650012S  
2431404S  
2406836S  
2412690S  
M839020S  
21421  
PART NAME  
QTY.  
4
2
4
4
1
1
1
2
1
4
4
8
1
1
1
1
REMARKS  
NUT, FLANGE MUFFLER  
GASKET, EXHAUST MANIFOLD  
STUD, EXHAUST  
SCREW, HEX FLANGE  
INNER HEAT SHIED, MUFFLER  
MUFFLER, O.F. SIDE OUTLET  
BRACKET, MUFFLER  
SCREW, HEX FLANGE  
ENGINE, KOHLER 27HP  
SCREW, HHC 5/16 -18 X 1-3/4  
WASHER, FLAT 5/16 SAE  
WASHER, LOCK 5/16 MED  
KEY, 0.25 SQ X 2.75  
1207  
0300 B  
0161 C  
20444  
20138  
20846  
21528  
4703  
21316  
5283  
BELT, CVT - COMET  
CLUTCH, 1 - 7/16 CVT COMET  
SPACER, 1.415 O.D. X .66 I.D. X 1.5 L  
WASHER, LOCK, 5/8 MED  
SCREW, HHC 5/8 - 18 X 3  
NUT, NYLOC 5/16 - 18  
1
1
4
1
21489  
WASHER, FLAT 1.437 X .032 THK  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 63  
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STR46SP — AIR CLEANER/OIL FILTER/OILCOOLER ASSY.  
AIR CLEANER/OIL FILTER/COOLER ASSY.  
PAGE 64 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 64  
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STR46SP — AIR CLEANER/OIL FILTER/OILCOOLER ASSY.  
AIR CLEANER/OIL FILTER/COOLER ASSY.  
NO.  
PART NO.  
5475501S  
2534104S  
2415320S  
2409667S  
1210001S  
2409601S  
230046S  
2408305S  
2408303S  
2408653S  
2412688S  
2409437S  
2404106S  
2655  
PART NAME  
QTY.  
REMARKS  
1
KIT, KNOB W/SEAL ........................................ 1.................. INCLUDES ITEMS W/  
*
2
*
3
*
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
KNOB, AIR CLEANER COVER  
O-RING  
COVER, AIR CLEANER  
WINGNUT  
COVER, INNER AIR CLEANER  
SEAL BREATHER  
ELEMENT, PRE-CLEANER  
ELEMENT, AIR FILTER  
SCREW, HEX. FLANGE M6X1.0X16  
BRACKET, AIR CLEANER BASE  
BASE, A/C W/STRTR SIDE DIMPLE  
GASKET, AIR CLEANER BASE  
HOUR METER  
RIVET, POP 1/8 DIA X .400 ALUMINUM  
SPARK PLUG  
FILTER, OIL  
1
1
1
1
1
1
1
1
2
1
1
1
1
2
2
1
1
1
1
1
2
1
8239  
2513212  
5205002S  
19317  
TBD  
370628  
60045  
1947  
12237  
5475521S  
PLUG, OIL DRAIN  
FITTING, 90 DEGREE  
FITTING, BRASS 45 6 BARB 1/4MP  
HOSE, 3/8 ID PUSHLOCK  
CLAMP, HOSE WORM 1/4 - 5/8  
FITTING, PUSH-ON 6 HOSE 6MJ  
ALUMINUM BASE OIL COOLER ................... 1.................. INCLUDES ITEMS W/#  
24A# 2813601S  
24B# 2415321S  
NIPPLE, OIL FILTER  
O-RING, OIL COOLER  
REGULATOR, RECTIFIER  
FITTING, CAP 6F JHEX  
BRACKET, AIR CLEANER  
GASKET, AIR CLEANER BASE  
MANIFOLD, INTAKE ....................................... 1.................. INCLUDES ITEMS W/%  
GASKET, CARBURETOR  
O-RING, INTAKE PORT  
SCREW, HEX. FLANGE M6X1.0X40  
1
1
1
1
1
1
25  
26  
2540305S  
12236  
27  
28  
29  
30%  
31%  
32%  
24126130S  
2404106S  
2416454S  
2404153S  
2415327S  
M651040S  
1
2
4
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 65  
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STR46SP V-BELT COVER/OUTER MUFFLER SHIELD ASSY.  
V-BELT COVER/OUTER MUFFLER SHIELD ASSY.  
PAGE 66 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 66  
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STR46SP V-BELT COVER/OUTER MUFFLER SHIELD ASSY.  
V-BELT COVER/OUTER MUFFLER SHIELD ASSY.  
NO.  
1
2
3
4
PART NO.  
21462  
11819  
21312  
21309  
PART NAME  
QTY.  
REMARKS  
SHIELD, MUFFLER OUTER  
SCREW, HHC FLANGED 1/4-20X3/4"  
GUARD, BELT REAR  
GUARD, BELT  
1
7
1
1
7
5
11534  
NUT, U-TYPE 1/4-20  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 67  
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STR46SP — SPIDER ASSY. (RIGHT)  
SPIDER ASSY. (RIGHT)  
PAGE 68 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 68  
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STR46SP — SPIDER ASSY. (RIGHT)  
SPIDER ASSY. (RIGHT)  
NO.  
1%  
2%  
3%  
4%  
5
PART NO.  
11419  
11431-1  
2621  
12779  
12101  
12097  
1456  
11039  
11594  
11904  
9006  
2829  
1207  
0161 C  
1162 A  
1322  
PART NAME  
QTY. REMARKS  
PLATE, WEARTHRUST COLLAR  
1
THRUST COLLARW/ BUSHING...................................1..... INCLUDES ITEMS W/+  
ZERK, GREASE STR 1/4 - 24  
BEARING, THRUST 6017 2RS W/ FLANGE  
KEY, 5/16 SQ. X 2-5/8 HRDND  
SCREW, SQHS 3/8 - 16 X 1-3/4 CONE 8  
NUT, HEX FINISH 3/8 - 16  
BUSHING,TROWEL ARM 2-PIECE  
SPRING, TROWEL ARM LEVER RIGHT  
LEVER, TROWEL ARM HAND RIDE SIDE  
PIN, ROLL 5/16 X 2 NO PLATE  
ARM, TROWEL HD EXT.  
SCREW, HHC 5/16 -18 X 1-3/4  
WASHER, LOCK, 5/16 MED  
CAP, GREASE ZERK #2  
SCREW ASSEMBLY, ARM RETAINING  
WASHER, INT. SHKP. 3/8  
SCREW, TROWEL ADJUSTMENT  
NUT, HEX JAM 3/8 - 16 CLASS 2B  
WASHER, LOCK, 3/8 MEDIUM  
SCREW, HHC 3/8 -16 X 1/4  
1
1
1
2
2
8
4
4
4
6
7
*
*
9
*
10  
*
11  
*
12  
*
13  
*
4
15  
12  
12  
5
4
4
4
4
4
4
*
16  
*
17  
*
18  
*
19  
1875  
0164 B  
1876  
*
20  
*
21  
*
22  
*
0166 A  
23 # 11602  
*
24  
25  
26  
12072-1  
12785  
SPIDER/ARM ASSY. R.S. 4BLD 1-1/4 MAIN SHAFT...1..... INCLUDES ITEMS W/  
*
SPIDER, SERVICE 4BLD 1-1/4 SHAFT .......................1..... INCLUDES ITEMS W/#  
BLADE ASSEMBLY ..................................................... 4 ..... CONTACT UNIT SALES DEPT./  
.............................................................................................. ACCESSORY ITEM  
*
27+% 12316  
28% 20938  
THRUST COLLAR BUSHING  
THRUST COLLAR KIT ..................................................1 ..... INCLUDES ITEMS W/%  
1
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 69  
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STR46SP — SPIDER ASSY. (LEFT)  
SPIDER ASSY, (LEFT)  
PAGE 70 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 70  
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STR46SP — SPIDER ASSY. (LEFT)  
SPIDER ASSY. (LEFT)  
NO.  
1%  
2%  
3%  
4%  
5
PART NO.  
11419  
11431-1  
2621  
12779  
12101  
12097  
1456  
11039  
11595  
11903  
9006  
21495  
1207  
0161 C  
1162 A  
1322  
1875  
0164 B  
1876  
PART NAME  
QTY.  
REMARKS  
PLATE, WEAR THRUST COLLAR  
1
THRUST COLLARW/ BUSHING................................ 1............. INCLUDES ITEMS W/+  
ZERK, GREASE 1/4 - 28  
1
1
1
2
2
8
4
4
4
4
12  
12  
5
4
4
4
4
4
4
BEARING, THRUST 6017 2RS W/ FLANGE  
KEY, 5/16 SQ. X 2 - 5/8 HRDND  
SCREW, SQHS 3/8 - 16 X 1-3/4 CONE 8  
NUT, HEX FINISH 3/8 - 16  
BUSHING,TROWEL ARM 2-PIECE  
SPRING, LEFT TROWEL ARM LEVER  
LEVER, TROWEL ARM LEFT SIDE  
PIN, ROLL 5/16 X 2 NO PLATE  
ARM, TROWEL L.S.  
SCREW, HHC 5/16 -18 X 1-3/4  
WASHER, LOCK, 5/16 MED  
CAP, GREASE ZERK #2  
SCREW ASSY, ARM RETAINING  
WASHER, INT. SHKP. 3/8  
SCREW, TROWEL ADJUSTMENT  
NUT, HEX JAM 3/8 - 16 CLASS 2B  
WASHER, LOCK, 3/8 MEDIUM  
SCREW, HHC 3/8 -16 X 1/4  
6
7
*
*
9
*
10  
*
11  
*
12  
*
13  
*
15  
*
16  
*
17  
*
18  
*
19  
*
20  
*
21  
*
22  
*
0166 A  
23 # 11602  
*
24  
25  
26  
21310-1  
12785  
SPIDER ASSY., L.S. 4BLD 1-1/4 MAIN SHAFT ........ 1............. INCLUDES ITEMS W/  
*
SPIDER, SERVICE 4BLD 1-1/4 SHAFT .................... 1............. INCLUDES ITEMS W/#  
BLADE ASSEMBLY ................................................... 4............. CONTACT UNIT SALES DEPT./  
................................................................................................... ACCESSORY ITEM  
*
27+% 12316  
28% 20938  
THRUST COLLAR BUSHING  
THRUST COLLAR KIT ............................................... 1............. INCLUDES ITEMS W/%  
1
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 71  
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STR46SP YOKE ASSY.  
YOKE ASSY.  
PAGE 72 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 72  
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STR46SP YOKE ASSY.  
YOKE ASSY.  
NO.  
1
2
3
4
5
6
PART NO.  
12100-1  
0683  
10136  
9028  
1116  
PART NAME  
QTY.  
REMARKS  
YOKE  
2
4
6
2
4
2
PIN, COTTER 3/32 X 3/4  
WASHER, FLAT 3/8 SAE  
PIN, YOKE  
NUT, BRASS JAM 5/16 -18  
CABLE ASSEMBLY 26.38 HT-V PITCH  
12460  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 73  
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STR46SP THROTTLE CABLE/FOOT PEDALS ASSY.  
THROTTLE CABLE/FOOT PEDALS ASSY.  
PAGE 74 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 74  
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STR46SP THROTTLE CABLE/FOOT PEDALS ASSY.  
THROTTLE CABLE/FOOT PEDALS ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
2124  
2754  
2753  
2755  
0937  
10019  
2203  
PART NAME  
QTY.  
1
1
1
1
2
1
2
1
1
2
1
1
2
1
1
4
4
4
1
4
2
1
2
2
1
1
1
1
REMARKS  
CABLE, CONTROL (RT)  
ADAPTER, THROTTLE SPRING, LONG  
SPRING, THROTTLE RETURN  
ADAPTER, THROTTLE SPRING, SHORT  
NUT, HEX 10 - 32 ZINC PLTD  
NUT, NYLOC 10 - 32  
WASHER, FLAT #10 SAE  
ROD END, 10 - 32 FEMALE RH  
SCREW, SHC 10 - 32 X 1  
PIN, COTTER 3/32 X 1  
2153  
9
10018  
6014 B  
12635  
12637  
10136  
3083  
2772  
3233  
0300 B  
5283  
2086  
0202  
10019  
2884  
5065 B  
2192  
2194  
2153  
2190  
10018  
0937  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
RISER, LEFT FOOT  
RISER, RIGHT FOOT  
WASHER, FLAT 3/8 SAE  
SPACER, 3/4 X 3/8 X 7/8 LONG  
PIN, ACCELERATOR PEDAL  
WASHER, FENDER 1.50D X 3/8 ID  
WASHER, FLAT 5/16 SAE  
NUT, NYLOC 5/16 -18  
PEDAL ACCELERATOR  
SCREW, HHC 5/16 - 18 X 1 ZINC  
NUT, NYLOC 10-32  
BRACKET, THROTTLE CABLE  
SCREW, RHM 10-32 X 1/2  
SPRING, EXTENSION RT  
NUT, THROTTLE  
ROD END, 10 - 32 FEMALE RH  
SPACER, THROTTLE  
SCREW, SHC 10-32 1 NP (1)  
NUT, FULL HEX 10 - 32 ZINC PLTD  
1
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 75  
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STR46SP — CONTROL PANEL ASSY.  
CONTROL PANEL ASSY.  
PAGE 76 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 76  
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STR46SP — CONTROL PANEL ASSY.  
CONTROL PANEL ASSY.  
NO.  
1
2
3
4
4A  
5
6
7
8
PART NO.  
21458-1  
4682  
PART NAME  
QTY.  
1
1
1
1
1
1
1
4
4
4
2
4
2
1
3
1
REMARKS  
CONTROL PANEL  
SWITCH, LIGHT TOGGLE  
BOOT, TOGGLE SWITCH  
IGNITION SWITCH, W/KEY  
KEY, IGNITION (SET)  
CABLE, CHOKE  
CIRCUIT BREAKER, 30A, 12V  
NUT, NYLOC 10 - 32  
SCREW, RHM 10 - 32 X 1/2  
WASHER, FLAT #10 SAE  
SCREW, HHC 3/8 - 16 X 1  
WASHER, FLAT USS 3/8 PLD  
NUT, NYLOC 3/8 - 16  
HARNESS, WIRE ENGINE  
TIE WRAP  
8381  
2509904S  
4834001S1  
11029  
2673  
10019  
5065 B  
2203  
0205  
4001  
10133  
2945  
60101  
21523  
1475  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
WIRE, YELLOW 10 AWG  
CONNECTOR, SPLICETAP  
WIRE, LITE SWITCH  
1
1
2
2769  
8133  
SCREW, PHP 10-32 X 3/4  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 77  
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STR46SP — FUEL ASSY.  
FUEL ASSY.  
PAGE 78 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 78  
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STR46SP — FUEL ASSY.  
FUEL ASSY.  
NO.  
1
2
3
4
5
6
7
PART NO.  
PART NAME  
QTY.  
REMARKS  
12404  
TANK, FUEL FIVE GALLON  
FUEL CAP/GAUGE (10.5)  
SCREW, HHC 1/4 - 20 X 5/8  
WASHER, FLAT, 1/4 SAE  
BUSHING, RUBBER FUEL  
VALVE, SCREENED DAPCO 12570  
CLAMP, WORM HOSE, #4 (1/4 - 5/8)  
1
1
6
6
1
1
3
11418  
4514  
0948  
19633  
20795  
19473  
8
9
10  
11  
12  
13  
60079  
HOSE, FUEL 5/16 ID..............................................3.................. SOLD IN 1 FT. LENGTHS  
0181 B  
2405002S  
2555901S  
2405010S  
2429  
WASHER, LOCK, 1/4 MED  
FILTER, FUEL PRIMARY 1/4" INLET  
FUEL PUMP, 12 VDC  
4
1
1
1
1
FILTER, FUEL SECONDARY  
HOLDER, SPARE BELT  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 79  
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STR46SP — BATTERY ASSY.  
BATTERY ASSY.  
PAGE 80 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 80  
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STR46SP — BATTERY ASSY.  
BATTERY ASSY.  
NO.  
1
2
3
4
PART NO.  
2509  
10031  
11105  
2449  
PART NAME  
QTY. REMARKS  
WING NUT, PLATED  
2
2
1
1
2
WASHER, EXT SHKP 1/4  
BRACKET BATTERY HOLD DOWN  
BOX, BATTERY GR UI  
SCREW, HHC 1/4 - 20 X 3/4  
5
0131 A  
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
BATTERY, ................................................ 1 ....... PURCHASE LOCALLY, INTERSTATE #SP40  
0181 B  
0949  
12022  
12675  
1597  
0655  
20146  
2866  
WASHER,LOCK, 1/4 MEDIUM  
NUT, HEX FINISH 1/4 - 20  
2
2
1
1
1
4
2
1
1
4
CABLE, BATTERY NEG 4GA 20 - 1/2"  
CABLE, BATTERY POS 4GA 36"  
CABLE, BATTERY NEG 4GA 16 - 1/2"  
SCREW, HHC 5/16 - 18 X 1- 3/4  
BRACKET BATTERY BOX  
SCREW, HHC M8 X 1.25 X 20MM  
WASHER, EXT SHKP 5/16  
13339  
5283  
NUT, NYLOC 5/16 - 18  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 81  
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STR46SP — SEAT FRAME ASSY.  
SEAT FRAME ASSY.  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 82  
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STR46SP — SEAT FRAME ASSY.  
SEAT FRAME ASSY.  
NO.  
1
2
3
4
PART NO.  
21861  
11472-1  
0300 B  
5283  
PART NAME  
SEAT, MICHIGAN-ADJUSTABLE W/O ARMS  
SEAT PLATE  
WASHER, FLAT, SAE 5/16  
NUT, NYLOC 5/16 - 18  
QTY.  
1
1
4
4
REMARKS  
5
6
7
8
10896-1  
11644  
10237  
8156  
FRAME, SEAT  
1
1
1
1
1
1
1
2
2
4
1
4
1
1
1
1
SCREW, HHC, WASHER 10 - 32 X 5/8  
WASHER, EXT. SHKP, #10  
SCREW, HHC 3/8 - 16 X 2 - 1/2  
WASHER, FLAT 3/8 PLTD STD. USS  
SPRING, SEAT  
9
4001  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
11593  
10133  
0183  
NUT, NYLOC 3/8 - 16  
PIN, COTTER 1/8 1 - 1/4  
PIN, CLEVIS 1/2 X 2.75 EFF.  
SCREW, HHC 1/2 - 13 X 5  
WIRE, RELAY GROUND  
NUT, NYLOC1/2 - 13  
NUT, NYLOC 10 - 32  
CONNECTOR, RELAY  
RELAY, KILL  
SWITCH, KILL COLE- HER #90036- 02  
TERMINAL, WIRE  
8081  
10307  
12014  
10176  
10019  
12018  
12017  
12005  
12020  
10306  
4
2
SCREW, HHC 1/2-13 X 4 1/2  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 83  
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TERMS AND CONDITIONS OF SALE — PARTS  
Effective: July 15, 2003  
Terms and Conditions of Sale  
STOW Construction Equipment  
PAYMENT TERMS  
DROP SHIPMENTS  
Terms of payment for unit sales are 2% 15 days  
net 30 days from date of invoice unless  
otherwise specifically stated on our invoice. Parts  
invoices have terms of net 10 days. Minimum  
parts billing is $15.00 net.  
Applicable discounts will be computed on  
merchandise value only. Late charges will be  
assessed at prevailing rates. Cash discounts  
cannot be taken on current billings if any  
previously billed amounts are past due.  
STOW reserves the right to refuse Drop  
Shipments outside the normal service area of  
the purchasing dealer.  
The sender will be notified of any material  
received that does not meet the above provisions.  
Such material will be held for 30 days from  
notification pending instructions. If a reply is not  
received within 30 days, the material will be  
returned to the sender at his expense with no  
credit issued.  
FIELDWAREHOUSES  
Field Warehouses are currently located in  
California, Georgia, Idaho, Iowa, and New  
Jersey  
PRICING, REBATES AND  
SPECIFICATIONS  
Every effort will be made to provide adequate  
notice of changes; however, prices and  
equipment specifications are subject to change  
without notice.  
SPECIAL EXPEDITING SERVICE  
The higher of a $35.00 surcharge or actual costs  
will be added to the invoice for special handling,  
including bus shipments, or in cases where  
STOW personnel must personally deliver the  
equipment or parts to the carrier.  
FREIGHT POLICY  
Freight policy is established to offer customers  
every advantage possible. Due to bulk freight  
ratings on some equipment and other shipping  
considerations, freight policies differ by  
equipment type. Actual back freight may be  
charged for shipments originating from other  
than specified FOB warehouses. See Freight  
Policy for details.  
All STOW domestic sales are FOB nearest  
available designated MQ/STOW warehouse.  
Export orders are ex-works factory located in  
Carson, CA or Boise, ID.  
Price changes are effective on a specific date  
and all orders received on or after that date will  
be billed at the revised price.  
RETURNED GOODS POLICY  
Return shipments may be accepted and credit  
allowed, subject to the following provisions.  
Rebates for price reductions and added charges  
for price increases will not be made for stock in  
dealer inventory at the time of a price change.  
1. A Returned Material Authorization (RMA)  
must be approved by STOW prior to  
shipment. Approvals for returned goods must  
be with just cause and are at the  
sole discretion of STOW. A copy of the  
Authorization must accompany the shipment  
to the designated Warehouse.  
STOW reserves the right to quote and sell direct  
to Government agencies and to Original  
Equipment Manufacturer accounts who use our  
products as integral parts of their own products.  
Additions to orders already shipped cannot be  
accepted for freight minimums.  
LIMITATION OF SELLER’S LIABILITY  
2. Parts being returned must be listed as  
currently supplied on the current parts list.  
STOW shall not be liable hereunder for damages  
in excess of the purchase price of the item with  
respect to which damages are claimed and in  
no event shall STOW be liable for loss of profit  
or good will or for any other special, consequential  
or incidental damages.  
Should STOW elect to make partial shipments  
of an order originally complying with the “freight  
allowed” requirements, transportation charges  
will be absorbed by STOW on any subsequent  
shipment applying to that order.  
3. Parts must be in new and resalable condition  
in the original package, with part numbers  
clearly marked.  
4. Units and accessories must be current  
models in the latest price list and in new and  
resalable condition.  
All other orders will be shipped collect or prepaid  
with charges added to the invoice. STOW’s  
responsibility ceases when a signed manifest  
has been obtained from the carrier, and any  
claim for shortage or damage must be settled  
between the consignee and the carrier.  
LIMITATION OF WARRANTIES  
There are no warranties, express or implied,  
made by STOW. hereunder on Products  
manufactured or distributed by it except the  
warranty against defects in material and  
workmanship on new Products to the original  
purchaser, as set forth in the STOW New Product  
Limited Warranty.  
5. Special order items are not returnable for  
credit.  
6. Credit on returned parts and units will be  
issued at actual dealer net price at time of  
purchase less 15% restocking charge.  
Parts: FOB Carson, California or Boise, Idaho.  
See Freight Policy for details and  
additional discounts.  
7. All returned shipments are to be made to the  
STOW designated receiving point, freight  
prepaid at the sender’s expense.  
STOW CONSTRUCTION EQUIPMENT  
POST OFFICE BOX 6254  
CARSON, CALIFORNIA 90749  
310-661-4242 • 877-BUY-STOW  
FAX:310-604-9237  
Atlanta • Boise • Newark • Quebec, Canada  
Manchester, UK • Rio de Janeiro, BR • Puebla, MX  
PAGE 84 — STR 31V  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 84  
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STR46SP — NOTES  
STR46SP • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (08/01/06) — PAGE 85  
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OPERATION AND PARTS MANUAL  
HERE'S HOW TO GET HELP  
PLEASE HAVETHE MODEL AND SERIAL  
NUMBER ON-HANDWHEN CALLING  
STOW MAIN OFFICE  
Post Office Box 6254  
Carson, Ca 90749  
888-252-STOW  
FAX:310-537-1986  
PARTS DEPARTMENT  
800-427-1244  
310-537-3700  
FAX:800-672-7877  
FAX:310-637-3284  
SERVICE DEPARTMENT  
800-478-1244  
FAX:310-537-4259  
310-537-3700  
TECHNICAL ASSISTANCE  
800-478-1244  
FAX:310-631-5032  
FAX:310-537-1173  
WARRANTYDEPARTMENT  
800-421-1244, EXT.279  
310-537-3700, EXT.279  
SALES DEPARTMENT  
310-661-4242  
FAX:310-604-9237  
877-289-7869(877-BUY-STOW)  
Your Local Dealer is:  
STOW CONSTRUCTION EQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
POST OFFICE BOX 6254  
CARSON, CA 90749  
888-252-STOW [888-252-7869]  
FAX:310-537-1986  
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