Husqvarna Lawn Mower Accessory 7021P User Manual

7021P  
Owner’s Manual / 96133000701 / 2009-10  
532 43 08-54 10.19.09 BY  
Printed in U.S.A.  
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Never refuel the machine indoors.  
wire away from plug to prevent accidental starting.  
Keep nuts and bolts, especially blade attachement  
bolts, tight and keep equipment in good condition.  
Never tamper with safety devices. Check their proper  
operation regularly.  
Keep machine free of grass, leaves, or other debris  
build-up. Clean oil or fuel spillage. Allow machine to  
cool before storing.  
Stop and inspect the equipment if you strike an object.  
Repair, if necessary, before restarting.  
Neverattempttomakewheelheightadjustmentswhile  
the engine (motor) is running.  
Grass catcher components are subject to wear, dam-  
age, and deterioration, which could expose moving  
parts or allow objects to be thrown. Frequently check  
components and replace with manufacturer’s recom-  
mended parts, when necessary.  
Mower blade is sharp and can cut. Wrap the blade or  
wear gloves, and use extra caution when servicing it.  
Donotchangetheenginegovernorsettingoroverspeed  
the engine.  
Never store the machine or fuel container where there  
is an open flame, spark or pilot light such as a water  
heater or on other appliances.  
Neverllcontainersinsideavehicle,onatruckortrailer  
bed with a plastic liner. Always place containers on  
the ground away from your vehicle before filling.  
Removegas-poweredequipmentfromthetruckortrailer  
and refuel it on the ground. If this is not possible, then  
refuel such equipment with a portable container, rather  
than from a gasoline dispenser nozzle.  
Keep the nozzle in contact with the rim of the fuel tank  
orcontaineropeningatalltimesuntilfuelingiscomplete.  
Do not use a nozzle lock-open device.  
If fuel is spilled on clothing, change clothing immedi-  
ately.  
Never overfill fuel tank. Replace gas cap and tighten  
securely.  
V. GENERAL SERVICE  
Never run a machine inside a closed area.  
Never make adjustments or repairs with the engine  
(motor) running. Disconnect spark plug wire, and keep  
Maintain or replace safety and instruction labels, as  
necessary.  
WARNING: This lawn mower is equipped with an internal combustion engine and should not be used on or  
near any unimproved forest-covered, brush-covered or grass-covered land unless the engine’s exhaust system is  
equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be  
maintained in effective working order by the operator.  
In the state of California the above is required by law (Section 4442 of the California Public Resources Code). Other  
states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available  
through your nearest authorized service center.  
CONGRATULATIONS on your purchase of a new lawn  
mower. Ithasbeendesigned,engineeredandmanufactured  
togiveyouthebestpossibledependabilityandperformance.  
PRODUCT SPECIFICATIONS  
Gasoline Capacity  
and Type:  
1.0 Quarts  
(Unleaded Regular Only)  
Should you experience any problem you cannot easily  
remedy, please contact your nearest authorized service  
center. We have competent, well-trained technicians and  
the proper tools to service or repair this lawn mower.  
Oil Type (API-SF-SJ):  
Oil Capacity:  
SAE 10W-30  
18.5 Ounces  
Please read and retain this manual. The instructions will  
enable you to assemble and maintain your lawn mower  
properly. Always observe the “SAFETY RULES”.  
Spark Plug:  
NGK BPR6ES (Gap: .030")  
Valve Clearance:  
( 0.04 mm)  
Intake: 0.015 mm  
Exhaust: 0.020 mm  
SERIAL  
Blade Bolt Torque:  
35-40 ft. lbs.  
NUMBER: _________________________________  
DATE OF PURCHASE: _______________________  
THEMODELANDSERIALNUMBERSWILLBEFOUND  
ON ADECALATTACHEDTOTHEREAROFTHELAWN  
MOWER HOUSING.  
CUSTOMER RESPONSIBILITIES  
Read and observe the safety rules.  
Follow a regular schedule in maintaining, caring for  
and using your lawn mower.  
YOUSHOULDRECORDBOTHSERIALNUMBERAND  
DATE OF PURCHASE AND KEEP IN A SAFE PLACE  
FOR FUTURE REFERENCE.  
FollowtheinstructionsunderMaintenanceandStor-  
age” sections of this owner’s manual.  
TABLE OF CONTENTS  
SAFETY RULES .........................................................2-3  
MAINTENANCE........................................................ 9-11  
SERVICE AND ADJUSTMENTS ................................. 12  
STORAGE.................................................................... 13  
TROUBLESHOOTING................................................. 14  
REPAIR PARTS ......................................................16-17  
WARRANTY................................................................. 20  
PRODUCT SPECIFICATIONS....................................... 3  
CUSTOMER RESPONSIBILITIES................................. 3  
ASSEMBLY.................................................................... 4  
OPERATION ...............................................................5-8  
MAINTENANCE SCHEDULE ........................................ 9  
3
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ASSEMBLY  
Read these instructions and this manual in its entirety before you attempt to assemble or operate your new lawn mower.  
IMPORTANT: THIS LAWN MOWER IS SHIPPED WITHOUT OIL OR GASOLINE IN THE ENGINE.  
Your new lawn mower has been assembled at the factory with the exception of those parts left unassembled for shipping  
purposes. All parts such as nuts, washers, bolts, etc., necessary to complete the assembly have been placed in the parts  
bag. To ensure safe and proper operation of your lawn mower, all parts and hardware you assemble must be tightened  
securely. Use the correct tools as necessary to ensure proper tightness.  
TO REMOVE LAWN MOWER FROM CARTON  
1. Remove loose parts included with mower.  
TO ASSEMBLE GRASS CATCHER  
(See Fig. 2)  
1. Put grass catcher frame into grass bag with rigid part  
of bag on the bottom. Make sure the frame handle is  
outside of the bag top.  
2. Cut down two end corners of carton and lay end panel  
down flat.  
3. Removeallpackingmaterialsexceptpaddingbetween  
upper and lower handle and padding holding operator  
presence control bar to upper handle.  
2. Slip vinyl bindings over frame.  
NOTE: Ifvinylbindingsaretoostiff,holdtheminwarmwater  
for a few minutes. If bag gets wet, let it dry before using.  
4. Roll lawn mower out of carton and check carton thor-  
ougly for additional loose parts.  
FRAME  
HANDLE  
HOW TO SET UPYOUR LAWN MOWER  
TO UNFOLD HANDLE (See Fig. 1)  
IMPORTANT: UNFOLD HANDLE CAREFULLY SO AS  
NOT TO PINCH OR DAMAGE CONTROL CABLES.  
1. Raise handles until lower handle section locks into  
place in mowing position.  
2. Remove protective padding, raise upper handle sec-  
tion into place on lower handle and tighten both handle  
knobs.  
3. Remove handle padding holding operator presence  
control bar to upper handle.  
FRAME  
OPENING  
VINYL  
BINDINGS  
Your handles may be adjusted for your mowing comfort.  
RefertoADJUSTHANDLEintheServiceandAdjustments  
section of this manual.  
FIG. 2  
TO INSTALL ATTACHMENTS  
OPERATOR  
PRESENCE  
CONTROL  
BAR  
MOWING  
POSITION  
Your lawn mower was shipped ready to be used as a  
mulcher. To convert mower to bagging or discharging,  
see “TO CONVERT MOWER” in the Operation section of  
this manual.  
LIFT  
UP  
LIFT  
UP  
UPPER  
HANDLE  
HANDLE  
KNOB  
LOWER  
HANDLE  
FIG. 1  
4
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OPERATION  
KNOW YOUR LAWN MOWER  
READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER.  
Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls and adjustments.  
Save this manual for future reference.  
These symbols may appear on your lawn mower or in literature supplied with the product. Learn and understand  
their meaning.  
OPERATOR PRESENCE CONTROL BAR  
HANDLE KNOB  
STARTER  
HANDLE  
GASOLINE  
FILLER CAP  
GRASS  
CATCHER  
FUEL VALVE LEVER  
AIR FILTER  
ENGINE OIL CAP  
WITH DIPSTICK  
MUFFLER  
MULCHER DOOR  
SPARK  
PLUG  
WHEEL ADJUSTER  
(ON EACH WHEEL)  
HOUSING  
IMPORTANT: This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine.  
MEETS CPSC SAFETY REQUIREMENTS  
Our rotary walk-behind power lawn mowers conform to the safety standards of the American National Standards Institute  
and the U.S. Consumer Product Safety Commission. The blade turns when the engine is running.  
OPERATOR PRESENCE CONTROL BAR – must be  
held down to the handle to start the engine. Release to  
stop the engine.  
STARTER HANDLE – used for starting the engine.  
MULCHER DOOR – allows conversion to discharge or  
bagging operation.  
5
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OPERATION  
The operation of any lawn mower can result in foreign objects thrown into the eyes, which can result in  
severe eye damage. Always wear safety glasses or eye shields while operating your lawn mower or per-  
forming any adjustments or repairs. We recommend standard safety glasses or a wide vision safety mask  
over spectacles.  
HOW TO USE YOUR LAWN MOWER  
ENGINE SPEED  
PIVOT PINS  
REAR  
DOOR  
GRASS  
CATCHER  
HANDLE  
The engine speed was set at the factory for optimum per-  
formance. Speed is not adjustable.  
ENGINE ZONE CONTROL  
CAUTION: Federal regulations require  
anenginecontroltobeinstalledonthis  
lawnmowerinordertominimizetherisk  
of blade contact injury. Do not under  
any circumstances attempt to defeat  
the function of the operator control.  
The blade turns when the engine is  
running.  
CATCHER FRAME HOOK  
FIG. 4  
SIDE DISCHARGING (See Fig. 5)  
Yourlawnmowerisequippedwithanoperatorpresence  
controlbarwhichrequirestheoperatortobepositioned  
behind the lawn mower handle to start and operate the  
lawn mower.  
Rear door must be closed.  
Open mulcher door and install discharge deflector  
under door as shown.  
TO ADJUST CUTTING HEIGHT (See Fig. 3)  
Raise wheels for low cut and lower wheels for high cut,  
adjust cutting height to suit your requirements. Medium  
position is best for most lawns.  
Mower is now ready for discharging operation.  
Toconverttomulchingorbaggingoperation,discharge  
deflector must be removed and mulcher door must be  
closed.  
Tochangecuttingheight,squeezeadjusterlevertoward  
wheel.Movewheelupordowntosuityourrequirements.  
Be sure all wheels are in the same setting.  
NOTE:Adjusterisproperlypositionedwhenplatetabinserts  
into hole in lever.Also, 9-position adjusters (if so equipped)  
allow lever to be positioned between the plate tabs.  
LEVER BACKWARD TO LOWER MOWER  
PLATE  
TAB  
OPEN  
MULCHER DOOR  
LEVER  
LEVER FORWARD TO RAISE MOWER  
FIG. 3  
INSTALL  
DISCHARGE  
DEFLECTOR  
TO CONVERT MOWER  
Your lawn mower was shipped ready to be used as a  
mulcher. To convert to bagging or discharging:  
REAR BAGGING (See Fig. 4)  
FIG. 5  
Lift rear door of the lawn mower and place the grass  
catcher frame hooks onto the door pivot pins.  
Toconverttomulchingordischargingoperation,remove  
grass catcher and close rear door.  
6
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OPERATION  
BEFORE STARTING ENGINE  
ADD OIL (See Fig. 7)  
Your lawnmower is shipped without oil in the engine. For  
type and grade of oil to use, see “ENGINE” in the Mainte-  
nance section of this manual.  
CAUTION: DO NOT overfill engine with  
oil, or it will smoke on startup.  
1. Be sure lawnmower is level.  
2. Remove oil dipstick from oil fill spout.  
3. Engine holds 20 ounces of oil. For type and grade of  
oil to use, see “ENGINE” in the Maintenance section  
of this manual.  
4. Pouroilslowly. Donotoverfill. Waitoneminutetoallow  
oil to settle. Insert and tighten dipstick, then remove it  
to check oil level.  
MOWER IS NOW READY FOR  
DISCHARGING OPERATION  
IMPORTANT:  
FIG. 5  
Check oil level before each use. Add oil if needed. Fill  
to full line on dipstick.  
SIMPLE STEPS TO REMEMBER  
WHEN CONVERTING YOUR LAWN MOWER:  
Changetheoilafterevery25hoursofoperationoreach  
season. Youmayneedtochangetheoilmoreoftenun-  
derdusty,dirtyconditions. SeeTOCHANGEENGINE  
OIL” in the Maintenance section of this manual.  
FOR MULCHING -  
1. Rear door closed.  
2. Mulcher door closed.  
FOR REAR BAGGING -  
1. Grass catcher installed.  
2. Mulcher door closed.  
OIL FILL CAP/  
DIPSTICK  
GASOLINE  
FILLER CAP  
FOR SIDE DISCHARGING -  
1. Rear door closed.  
2. Discharge deflector installed.  
CAUTION: Donotrunyourlawnmower  
without rear door closed or approved  
grass catcher in place. Never attempt  
tooperatethelawnmowerwiththerear  
door removed or propped open.  
TO EMPTY GRASS CATCHER (See Fig. 6)  
1. Lift up on grass catcher using the frame handle.  
UPPER LOWER  
2. Remove grass catcher with clippings from under lawn  
mower handle.  
MARK  
MARK  
3. Empty clippings from bag.  
FIG. 7  
NOTE: Do not drag the bag when emptying; it will cause  
unnecessary wear.  
ADD GASOLINE (See Fig. 7)  
Fill fuel tank to bottom of tank filler neck. Do not over-  
fill. Use fresh, clean, regular unleaded gasoline with  
a minimum of 87 octane. Do not mix oil with gasoline.  
Purchase fuel in quantities that can be used within 30  
days to assure fuel freshness.  
FRAME  
HANDLE  
CAUTION: Wipe off any spilled oil or  
fuel. Do not store, spill or use gasoline  
near an open flame.  
FIG. 6  
7
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OPERATION  
MOWING TIPS  
Alcohol blended fuels (called gasohol  
or using ethanol or methanol) can at-  
tractmoisturewhichleadstoseparation  
and formation of acids during storage.  
Acidic gas can damage the fuel sys-  
tem of an engine while in storage. To  
avoidengineproblems,thefuelsystem  
shouldbeemptiedbeforestorageof30  
days or longer. Empty the gas tank,  
start the engine and let it run until the  
fuellinesandcarburetorareempty. Use  
fresh fuel next season. See Storage  
Instructionsforadditionalinformation.  
Neveruseengineorcarburetorcleaner  
products in the fuel tank or permanent  
damage may occur.  
CAUTION:Donotusede-thatcherblade  
attachments on your mower. Such at-  
tachments are hazardous, will damage  
yourmowerandcouldvoidyourwarranty.  
Under certain conditions, such as very tall grass, it  
may be necessary to raise the height of cut to reduce  
pushing effort and to keep from overloading the engine  
and leaving clumps of grass clippings. It may also be  
necessarytoreducegroundspeed and/orrunthelawn  
mower over the area a second time.  
For extremely heavy cutting, reduce the width of cut  
by overlapping previously cut path and mow slowly.  
For better grass bagging and most cutting conditions,  
the engine speed should be set in the fast position.  
Poresinclothgrasscatcherscanbecomelledwithdirt  
and dust with use and catchers will collect less grass.  
To prevent this, regularly hose catcher off with water  
and let dry before using.  
TO STOP ENGINE  
To stop engine, release operator presence control bar.  
Wait until blade and all moving parts have stopped and  
turn fuel valve to OFF position if you do not intend to  
restart the engine soon.  
Keep top of engine around starter clear and clean of  
grass clippings and chaff. This will help engine air flow  
and extend engine life.  
TO START ENGINE (See Fig. 8)  
NOTE: Due to protective coatings on the engine, a small  
amount of smoke may be present during the initial use of  
the product and should be considered normal.  
MULCHING MOWING TIPS  
IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER  
HOUSING FREE OF BUILT-UP GRASS AND TRASH. SEE  
“CLEANING”INTHEMAINTENANCESECTIONOFTHISMANUAL.  
1. Be sure fuel valve is in the ON position.  
2. Move choke lever to ON ( ) position.  
The special mulching blade will recut the grass clip-  
pings many times and reduce them in size so that as  
they fall onto the lawn they will disperse into the grass  
and not be noticed. Also, the mulched grass will biode-  
grade quickly to provide nutrients for the lawn. Always  
mulch with your highest engine (blade) speed as this  
will provide the best recutting action of the blades.  
3. Hold operator presence control bar down to the handle  
andpullstarterhandlequickly.Donotallowstarterrope  
to snap back.  
NOTE: The choke lever automatically begins moving to  
the OFF position when operator presence control bar is  
held down to handle.  
Avoid cutting your lawn when it is wet. Wet grass tends  
to form clumps and interferes with the mulching action.  
The best time to mow your lawn is the early afternoon.  
At this time the grass has dried, yet the newly cut area  
will not be exposed to direct sunlight.  
OFF  
CHOKE LEVER  
For best results, adjust the lawn mower cutting height  
so that the lawn mower cuts off only the top one-third  
of the grass blades (See Fig. 9). If the lawn is over-  
grown it will be necessary to raise the height of cut to  
reduce pushing effort and to keep from overloading  
the engine and leaving clumps of mulched grass. For  
extremely heavy mulching, reduce your width of cut by  
overlapping previously cut path and mow slowly.  
ON  
(
)
OFF  
ON  
MAX 1/3  
FIG. 9  
Certaintypesofgrassandgrassconditionsmayrequire  
that an area be mulched a second time to completely  
hide the clippings. When doing a second cut, mow  
across (perpendicular) to the first cut path.  
FUEL VALVE LEVER  
FIG. 8  
Change your cutting pattern from week to week. Mow  
northtosouthoneweekthenchangetoeasttowestthe  
next week. This will help prevent matting and graining  
of the lawn.  
8
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MAINTENANCE  
BEFORE AFTER EVERY  
EVERY  
EVERY  
100  
BEFORE  
STORAGE  
EACH  
USE  
EACH  
USE  
10  
25 HOURS  
HOURS OR SEASON HOURS  
Check for Loose Fasteners  
Clean / Inspect Grass Catcher *  
Check Tires  
Check Drive Wheels ***  
Clean Lawn Mower ****  
Clean under Drive Cover ***  
Check Drive Belt / Pulleys ***  
Check / Sharpen / Replace Blade  
Lubrication  
Clean and Recharge Battery **  
Check Engine Oil level  
Change Engine Oil  
Clean Air Filter  
Inspect Muffler  
Replace Spark Plug  
Replace Air Filter Paper Cartridge  
Empty fuel system or add Stabilizer  
(if so equipped)  
1 - Change more often if operating under a heavy load or in high outdoor temperatures.  
2 - Service more often if operating in dirty or dusty conditions.  
3 - Replace blades more often when mowing in sandy soil.  
4 - Charge 48 hours at end of season.  
*
Electric-Start mowers  
Power-Propelled mowers  
Use a scraper  
to clean under deck  
**  
***  
****  
5 - And after each 5 hours of use.  
GENERAL RECOMMENDATIONS  
LUBRICATION CHART  
The warranty on this lawn mower does not cover items that  
have been subjected to operator abuse or negligence. To  
receivefullvaluefromthewarranty,operatormustmaintain  
mower as instructed in this manual.  
WHEEL  
ADJUSTER  
(ON EACH  
WHEEL)  
Some adjustments will need to be made periodically to  
properly maintain your unit.  
ENGINE OIL  
At least once a season, check to see if you should make  
any of the adjustments described in the Service and Ad-  
justments section of this manual.  
MULCHER  
At least once a year, replace the spark plug, clean or  
replace air filter element and check blade for wear. A  
new spark plug and clean/new air filter element assure  
proper air-fuel mixture and help your engine run better  
and last longer.  
DOOR  
HINGE PIN  
Follow the maintenance schedule in this manual.  
REAR DOOR HINGE  
BEFORE EACH USE  
1. Check engine oil level.  
2. Check for loose fasteners.  
LUBRICATION  
Keep unit well lubricated (See “LUBRICATION CHART”).  
HANDLE BRACKET MOUNTING PINS  
IMPORTANT: DO NOT OIL OR GREASE PLASTIC WHEEL  
BEARINGS. VISCOUS LUBRICANTS WILL ATTRACT DUST  
AND DIRT THAT WILL SHORTEN THE LIFE OF THE SELF-  
LUBRICATING BEARINGS. IF YOU FEEL THEY MUST BE  
LUBRICATED, USE ONLY A DRY, POWDERED GRAPHITE  
TYPE LUBRICANT SPARINGLY.  
SPRAY LUBRICANT  
SEE “ENGINE” IN MAINTENANCE SECTION  
9 ➁  
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MAINTENANCE  
To check blade balance, drive a nail into a beam or  
LAWN MOWER  
wall. Leave about one inch of the straight nail exposed.  
Place center hole of blade over the head of the nail.  
If blade is balanced, it should remain in a horizontal  
position. If either end of the blade moves downward,  
sharpen the heavy end until the blade is balanced.  
Alwaysobservesafetyruleswhenperformingmaintenance.  
TIRES  
Keep tires free of gasoline, oil, or insect control chem-  
icals which can harm rubber.  
Avoid stumps, stones, deep ruts, sharp objects and  
other hazards that may cause tire damage.  
BLADE ADAPTER  
BLADE  
CRANKSHAFT  
KEYWAY  
KEY  
BLADE CARE  
Forbestresults,mowerblademustbekeptsharp. Replace  
bent or damaged blades.  
LOCK  
WASHER  
CAUTION: Useonlyareplacementblade  
approved by the manufacturer of your  
mower. Using a blade not approved  
by the manufacturer of your mower is  
hazardous, could damage your mower  
and void your warranty.  
BLADE  
BOLT  
HARDENED  
WASHER  
TRAILING EDGE  
CRANKSHAFT  
TO REMOVE BLADE (See Fig. 10)  
1. Disconnect spark plug wire from spark plug and place  
wire where it cannot come in contact with plug.  
FIG. 10  
GRASS CATCHER  
2. Turn lawn mower on its side. Make sure air filter and  
carburetor are up.  
The grass catcher may be hosed with water, but must  
be dry when used.  
3. Use a wood block between blade and mower housing  
topreventbladefromturningwhenremovingbladebolt.  
Check your grass catcher often for damage or dete-  
rioration. Through normal use it will wear. If catcher  
needs replacing, replace only with approved replace-  
ment catcher shown in the Repair Parts section of this  
manual. Givethemowermodelnumberwhenordering.  
NOTE: Protect your hands with gloves and/or wrap blade  
with heavy cloth.  
4. Remove blade bolt by turning counter-clockwise.  
5. Removebladeandattachinghardware(bolt,lockwasher  
and hardened washer).  
ENGINE  
Maintenance, repair, or replacement of the emission con-  
trol devices and systems, which are being done at the  
customers expense, may be performed by any non-road  
engine repair establishment or individual. Warranty repairs  
mustbeperformedbyanauthorizedenginemanufacturer's  
service outlet.  
NOTE: Removethebladeadapterandcheckthekeyinside  
hub of blade adapter. The key must be in good condition to  
work properly. Replace adapter if damaged.  
TO REPLACE BLADE (See Fig. 10)  
1. Position the blade adapter on the engine crankshaft.  
Be sure key in adapter and crankshaft keyway are  
aligned.  
LUBRICATION  
Use only high quality detergent oil rated with API service  
classification SF-SJ. Select the oil's SAE viscosity grade  
according to your expected operating temperature.  
2. Position the blade on the blade adapter aligning the  
two (2) holes in the blade with the raised lugs on the  
adapter.  
3. Besurethetrailingedgeofblade(oppositesharpedge)  
is up toward the engine.  
4. Installthebladeboltwiththelockwasherandhardened  
washer into blade adapter and crankshaft.  
5. Use block of wood between blade and lawn mower  
housing and tighten the blade bolt, turning clockwise.  
The recommended tightening torque is 35-40 ft. lbs.  
IMPORTANT: BLADEBOLTISHEATTREATED. IFBOLTNEEDS  
REPLACING,REPLACEONLYWITHAPPROVEDBOLTSHOWN  
IN THE REPAIR PARTS SECTION OF THIS MANUAL.  
NOTE: Multi-viscosity oils (5W30, 10W30 etc.) improve  
starting in cold weather, and you should check your engine  
oil level frequently to avoid possible engine damage from  
running low on oil.  
TO SHARPEN BLADE  
NOTE: Wedonotrecommendsharpeningblade-butifyou  
do, be sure the blade is balanced. An unbalanced blade  
will cause eventual damage to lawn mower or engine.  
Changetheoilafterevery25hoursofoperationoratleastonce  
ayearifthelawnmowerisnotusedfor25hoursinoneyear.  
Check the crankcase oil level before starting the engine  
and after each five (5) hours of continuous use. Tighten oil  
plug securely each time you check the oil level.  
The blade can be sharpened with a file or on a grinding  
wheel. Do not attempt to sharpen while on the mower.  
10  
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