Husqvarna Lawn Mower 16 H User Manual

Rider 16 H  
Operator´s manual  
Please read these instructions carefully and make sure  
you understand them before using the machine.  
101 90 89-95  
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CONTENTS  
Operator’s Manual for  
Rider 16 H  
Maintenance schedule ..................................... 18  
Explanation of symbols...................................... 2  
Safety instructions.............................................. 3  
General operation ............................................ 3  
Slope operation ................................................ 3  
Children............................................................ 3  
Service ............................................................. 4  
Travel and transport on public roads................ 4  
Towing .............................................................. 4  
Intended use .................................................... 4  
Safe operation practices for Ride-On Mowers . 4  
General use ..................................................... 5  
Driving on slopes ............................................. 6  
Children............................................................ 7  
Maintenance .................................................... 7  
Presentation ........................................................ 9  
Location of the controls ...................................... 9  
Throttle/Choke lever ......................................... 10  
Speed limiter .................................................... 10  
Parking brake ................................................... 10  
Cutting unit ....................................................... 11  
Lift lever for cutting unit .................................... 11  
Lever for adjustment of cutting height .............. 12  
Seat .................................................................. 12  
Fuelling............................................................. 12  
Driving................................................................ 13  
Before starting.................................................. 13  
Starting the engine ........................................... 13  
Driving the machine ......................................... 15  
Cutting tips ....................................................... 16  
Stopping the engine ......................................... 17  
Release lever ................................................... 17  
Maintenance ...................................................... 18  
Dismantling of the machine hoods ................... 19  
Checking the engine’s oil level ......................... 20  
Checking the engine’s cooling air intake .......... 20  
Checking the fuel pump’s air filter .................... 20  
Checking and adjusting the steering wires....... 21  
Adjusting the brake........................................... 21  
Checking the transmission’s oil level ............... 22  
Checking the battery acid level ........................ 22  
Checking the safety system ............................. 22  
Replacement of air filter ................................... 23  
Fitting the cutting unit ....................................... 24  
Installing BioClip 90.......................................... 24  
Checking and adjustment of cutting unit’s  
ground pressure ............................................... 25  
Checking the parallelism of the cutting unit...... 25  
Adjusting the parallelism of the cutting unit ...... 26  
Dismantling the cutting unit .............................. 26  
Replacing the cutting unit belts ........................ 27  
Service position for cutting unit ........................ 29  
Lubrication........................................................ 32  
Checking the tyre pressure .............................. 32  
Checking the blades......................................... 33  
Changing the oil ............................................... 34  
Checking and adjustment of throttle wire ......... 35  
Replacement of fuel filter ................................. 35  
Trouble shooting schedule .............................. 36  
Storage ............................................................... 37  
Winter storage.................................................. 37  
Service ............................................................. 37  
Technical data ................................................... 38  
IMPORTANT INFORMATION  
Read through these instructions carefully so that you know how to use and maintain the ma-  
chine before using it.  
For servicing other than described in this manual contact an authorised dealer for parts and  
service.  
English – 1  
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EXPLANATION OF SYMBOLS  
These symbols are on the machine and in the operator’s manual.  
Study them carefully so that you know what they mean.  
Read the operator’s manual  
N
R
Reverse  
Neutral  
Fast  
Slow  
Engine off  
Battery  
Choke  
Fuel  
Oil pressure  
Cutting height  
Backwards  
Forwards  
Ignition  
!
Hydrostatic free wheel  
Use eye and hearing protection  
Parking brake  
Brake  
Warning  
Sound-  
level  
Warning!  
Rotating blades.  
Warning!  
Risk that the machine can tip over  
Never drive across a slope  
European standard for  
machine safety  
Drive very slowly  
without the cutting unit.  
Never use the machine if persons, especially  
children, or animals, are in the vicinity.  
Never carry passengers on the  
machine or equipment.  
Keep hands and feet away  
from under the hood when  
the engine is running.  
Speed limiter pedal forwards  
Neutral  
Speed limiter pedal reverse  
Starting instructions  
Read the instructions  
Check the engine’s oil level  
Check the hydrostat’s oil level  
Lift up the cutting unit  
Put the gear shift/hydrostat pedal in  
neutral  
Brake  
If the engine is cold use the choke  
Start the engine  
Release the parking brake before  
driving  
Switch off the engine and take off  
the ignition cable before repairs or  
maintenance  
2– English  
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SAFETY INSTRUCTIONS  
These instructions are for your safety. Read them carefully.  
1. Safety rules for USA  
Safe operation practices for ride-on mowers  
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IMPORTANT!  
This cutting machine is capable of amputating hands and feet and throwing objects. Failure to ob-  
serve the following safety instructions could result in serious injury or death.  
Use slow speed. Choose a low gear so that  
you will not have to stop or shift while on the  
I. General operation  
1. Read, understand and follow all instructions in  
slope.  
the manual and on the machine before start-  
Follow the manufacturer’s recommendations  
ing.  
for wheel weights or counterweights to improve  
2. Only allow responsible adults, who are familiar  
stability.  
with the instructions, to operate the machine.  
Use extra care with grass catchers or other  
3. Clear the area of objects such as rocks, toys,  
wire, etc., which could be picked up and  
thrown by the blade.  
attachments. These can change the stability of  
the machine.  
Keep all movement on the slopes slow and  
gradual. Do not make sudden changes in  
speed or direction.  
Avoid starting or stopping on a slope. If tires  
lose traction, disengage the blades and pro-  
ceed slowly straight down the slope.  
4. Be sure the area is clear of other people  
before mowing. Stop the machine if anyone  
enters the area.  
5. Never carry passengers.  
6. Do not mow in reverse unless absolutely  
necessary. Always look down and behind  
before and while backing.  
DO NOT  
Do not turn on slopes unless necessary and  
then, turn slowly and gradually downhill, if  
possible.  
Do not mow near drop-offs, ditches or  
embandments. The mower could suddenly turn  
over if a wheel is over the edge of a cliff or  
ditch, or if an edge caves in.  
Do not mow on wet grass. Reduced traction  
could cause sliding.  
Do not try to stabilize the machine by putting  
your foot on the ground.  
7. Be aware of the mower discharge direction  
and do not point it at anyone. Do not operate  
the mower without either the entire grass  
catcher or the guard in place.  
8. Slow down before turning.  
9. Never leave a running machine unattended.  
Always turn off blades, set parking brake, stop  
engine and remove keys before dismounting.  
10. Turn off blades when not mowing.  
11. Stop engine before removing grass catcher or  
unclogging chute.  
Do not use grass catcher on steep slopes.  
12. Mow only in daylight or good artificial light.  
III. Children  
13. Do not operate the machine while under the  
influence of alcohol or drugs.  
Tragic accidents can occur if the operator is not  
alert to the presence of children. Children are often  
attracted to the machine and the mowing activity.  
Never assume that children will remain where you  
last saw them.  
14. Watch for traffic when operating near or  
crossing roadways.  
15. Use extra care when loading or unloading the  
machine into a trailer or truck.  
1. Keep children out of the mowing area and  
under the watchful care of another responsible  
adult.  
II. Slope operation  
Slopes are a major factor related to loss-of-control  
and tip-over accidents, which can result in severe  
injury or death. All slopes require extra caution. If  
you cannot back up the slope or if you feel uneasy  
on it, do not mow it.  
2. Be alert and turn machine off if children enter  
the area.  
3. Before and when backing, look behind and  
down for small children.  
4. Never carry children. They may fall off and be  
seriously injured or interfere with safe machine  
operation.  
DO  
Mow up and down slopes, not across.  
Remove obstacles such as rocks, tree limbs,  
etc.  
5. Never allow children to operate the machine.  
Watch for holes, ruts or bumps. Uneven terrain  
could overturn the machine. Tall grass can  
hide obstacles.  
6. Use extra care when approaching blind cor-  
ners, shrubs, trees or other objects that may  
obscure vision.  
English – 3  
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SAFETY INSTRUCTIONS  
Travel and transport on public roads  
IV. Service  
Check the relevant road traffic regulations before  
driving the machine on a public road. If transporting  
the machine on another vehicle always use ap-  
proved securing devices and make sure that the  
machine is securely held.  
1. Use extra care in handling gasoline and other  
fuels. They are flammable and vapours are  
explosive.  
a) Use only an approved container.  
Towing  
b) Never remove gas cap or add fuel with the  
engine running. Allow engine to cool before  
refuelling. Do not smoke.  
If your machine has a hydrostatic transmission you  
should only tow it very short distances at low speed  
if absolutely necessary, otherwise the transmission  
may be damaged.  
c) Never refuel the machine indoors.  
d) Never store the machine or fuel container  
inside where there is an open flame, such as  
in a water heater.  
Intended use  
This machine is designed solely for cutting grass  
on conventional lawns and other cleared and  
leveled ground without obstacles, as rocks, stumps  
etc., and, in conjunction with accessories supplied  
by the manufacturer even for other special tasks  
for which instructions are delivered with the acces-  
sory. Use in any other way is considered as con-  
trary to the intended use. Compliance with and  
strict adherence to the conditions of operation,  
service and repair as specified by the manufacturer  
also constitute essential elements of the intended  
use.  
This machine should be operated, serviced and  
repaired only by persons who are familiar with its  
particular characteristics and who are acquainted  
with the relevant safety procedures.  
Accident prevention regulations, all other generally  
recognised regulations on safety and occupational  
medicine, and all road traffic regulations must be  
observed at all times.  
2. Never run a machine inside a closed area.  
3. Keep nuts and bolts, especially blade attach-  
ment bolts, tight and keep equipment in good  
condition.  
4. Never tamper with safety devices. Check their  
proper operation regularly.  
5. Keep machine free of grass, leaves or other  
debris build-up. Clean up oil or fuel spillage.  
Allow machine to cool before storing.  
6. Stop and inspect the equipment if you strike an  
object. Repair, if necessary, before restarting.  
7. Never make adjustments or repairs with the  
engine running.  
8. Grass catcher components are subject to wear,  
damage and deterioration, which could expose  
moving parts or allow objects to be thrown.  
Frequently check components and replace with  
manufacturer’s recommended parts, when  
necessary.  
Any arbitrary modifications carried out to this  
machine may relieve the manufacturer of liability  
for any resulting damage or injury.  
Safe operation practices for Ride-On Mowers  
Before starting cutting operations, train different  
driving operations on an open ground without  
people nearby until you feel familiar with handling  
the equipment. This is particularly important if you  
have no or little prior experience of driving a vehi-  
cle.  
9. Mower blades are sharp and can cut. Wrap the  
blade(s) or wear gloves and use extra caution  
when servicing them.  
10. Check brake operation frequently. Adjust and  
service as required.  
Data indicates that operators, age 60 years and  
above, are involved in a large percentage of riding  
mower-related injuries. These operators should  
evaluate their ability to operate the riding mower  
safely in order to protect themselves and others  
from serious injury.  
Never carry children, even with the blades off. They  
may fall off and be seriously injured or interfere with  
safe machine operation.  
Danger, keep hands and feet away  
4– English  
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SAFETY INSTRUCTIONS  
These instructions are for your safety. Read them carefully.  
This symbol implies that important safety rules are applicable.  
This is for your safety and the operating reliability of the machine.  
!
General use:  
Make yourself familiar with the controls and how  
to stop quickly.  
Read all the instructions in Operator’s Manual  
and on the machine before starting it. Make sure  
you understand them, and then follow them.  
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Only allow adults who are familiar with the  
machine to use it.  
Wear approved protective glasses or a visor  
during assembly and driving.  
Never use the machine barefoot. Always wear  
heavy-duty shoes, preferably toe-capped.  
Read the instructions before starting the machine.  
Never wear loose fitting clothes which can fasten  
in moving parts.  
Clear the area of objects such as stones, toys,  
and wires, etc. which can be caught up by the  
blades and thrown out.  
Check that there are no other persons in the  
area before starting to cut.  
Stop the machine if anyone comes into the work  
area.  
Never carry passengers.  
Do not cut backwards unless absolutely neces-  
sary.  
Always look down and behind before and during  
reversing.  
Clear the area from stones etc. before cutting.  
Keep an eye on the ejected grass and do not  
direct it towards anyone.  
Slow down before turning.  
Never leave the machine unattended when the  
engine is running. Always switch off the blades,  
pull on the parking brake, stop the engine and  
take out the keys before leaving the machine.  
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Switch off the blades when you are not cutting.  
Only cut in daylight or good artificial lighting.  
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Never use the machine when you have con-  
sumed alcohol, drugs, or certain medicines.  
Never carry passengers.  
WARNING!  
This machine can cut off hands and feet, and eject objects. Failure to follow the  
safety instructions can lead to severe injury.  
!
English – 5  
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SAFETY INSTRUCTIONS  
Watch out for traffic when working close to a  
road, or crossing one.  
Be careful when rounding a fixed object so that  
the blades do not hit it. Never drive intentionally  
over a foreign object.  
The machine is heavy and can cause very  
severe crush injuries. Be extra careful when  
loading it on a trailer or truck.  
Be careful when pulling a load or using heavy  
equipment.  
a. Only use approved tow hooks.  
b. Limit the load to what you can manage safely.  
c. Do not make sharp turns. Be careful when  
reversing.  
d. Use counterweights or wheel weights when  
indicated in the instructions.  
Driving on slopes  
Driving on slopes is one of the situations where  
there is the most serious risk that the driver can  
loose control or that the machine tips over, which  
can cause severe injuries or be fatal. All slopes  
require extra care. If you cannot reverse up the  
slope or if you feel uncertain avoid cutting it.  
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Do as follows:  
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Remove obstacles such as stones and branches  
etc.  
Cut upwards and downwards, not sideways.  
Look out for and avoid driving over furrows,  
holes or mounds. On uneven surfaces it is  
easier for the machine to tip over. High grass  
can conceal obstacles.  
Be extra careful when driving on slopes.  
Drive slowly. Select a low gear to avoid having  
to stop and changing gear. It is also easier to  
use the gear to brake in a low gear.  
Follow the manufacturer’s recommendations on  
wheelweights or counterweights to increase  
stability.  
Be extra careful with the grass collector or other  
equipment which can alter the stability of the  
machine.  
Always drive smoothly and slowly on slopes.  
Avoid sudden changes of speed or direction.  
Avoid starting or stopping on a slope. If the tyres  
begin to skid switch of the blades and drive  
slowly down the slope.  
Cut slopes upwards and downwards, not sideways.  
Avoid unnecessary turns on slopes, and if  
turning is necessary turn slowly and gradually,  
downwards if possible.  
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SAFETY INSTRUCTIONS  
Do not cut close to edges, ditches or banks. The  
machine can suddenly tip over if a wheel goes  
over the edge of a drop or a ditch, or if a bank  
gives way.  
Do not cut wet grass. It is slippery and the tyres  
can loose their grip so that the machine slides.  
Do not try to stabilise the machine by placing one  
foot on the ground.  
Always keep the rider mower away from edges or  
ditches when cleaning the chassis.  
Children  
Tragic accidents can occur if the driver does not pay  
attention to children in the vicinity. Children are often  
attracted to the machine and the work of mowing.  
Never assume that children stay where you last saw  
them.  
Keep children away from the mowing area.  
Keep children away from the mowing area and  
under the supervision of another adult.  
Be on your guard and switch off the machine if  
children come into the work area.  
Before and during reversing look behind and  
down for small children.  
Never allow children to ride on the machine.  
They can fall off and become seriously injured or  
obstruct a risky manoeuvre of the machine.  
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Never allow children to drive the machine.  
Be extra careful close to corners, bushes, trees  
or other objects which obstruct your view.  
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Maintenance  
Never allow children to drive the machine.  
Petrol/gasoline and petrol/gasoline fumes are  
toxic and highly inflammable. Be extra careful  
when handling petrol/gasoline.  
a. Store the fuel in containers approved for this  
purpose.  
b. Never fill up the machine with fuel when the  
engine is running. Let the engine cool before  
filling up with fuel. Do not smoke, or fill up with  
fuel in the vicinity of naked flames or sparks.  
c. Never fill up with fuel indoors.  
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d. If leakage has occurred in the fuel system the  
engine must not be started until this is rectified.  
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e. Never store the machine or fuel containers  
indoors if there are naked flames, such as in a  
boiler room or where there is electrical equipment  
which can emit sparks.  
Check the fuel level each time before using the  
machine, and leave space for the fuel to expand  
since the heat from the engine and hot sun can  
cause the fuel to run over.  
Never fill up with fuel indoors.  
English – 7  
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SAFETY INSTRUCTIONS  
Avoid overfilling. If fuel has been spilt on the  
machine wipe it up and wait until it has evapor-  
ated before starting the engine. If fuel is spilt on  
clothes, change them.  
Be extra careful when handling battery acid.  
Spilling acid on the skin can cause severe burn  
injuries. Rinse immediately with water. If acid  
gets into the eyes this can cause blindness.  
Contact a doctor.  
Be careful with the maintenance of the battery.  
Explosive gas is formed in the battery. Never  
handle the battery when smoking or in the  
vicinity of naked flames or sparks. Otherwise the  
battery can explode and cause severe injuries.  
Never smoke in the vicinity of the battery or the fuel.  
Never drive the machine in an enclosed space.  
The exhaust fumes contain carbon monoxide,  
an odourless, non coloured, toxic and fatal gas.  
Make sure that bolts and nuts, especially attach-  
ment bolts for the blade units are properly  
tightened and that the equipment is in good  
order.  
Never alter the safety devices. Check regularly  
that they function. The machine must not be  
driven with defective or unmounted safety  
devices.  
Do not alter the setting of the governor and do  
not race the engine.  
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Reduce the fire risk. Keep the machine clean  
from grass, leaves and other refuse which  
fastens in it. Allow the machine to cool before  
placing it in the storage area.  
Never drive the machine in an enclosed space.  
Stop and inspect the equipment if you drive over  
an object. If necessary repair the machine  
before starting.  
Never make adjustments with the engine run-  
ning.  
The machine is tested for safety and approved  
only for equipment supplied or recommended by  
the manufacturer.  
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The blades are sharp and can cause cutting  
injuries. Wrap over the blades or use protective  
gloves when handling them.  
Check the functioning of the brakes regularly.  
Adjust and maintain them as necessary.  
The BioClip cutting unit should only be used to  
give high quality results on lawn surfaces that  
you are familiar with. If the blades of the cutting  
unit strike an obstacle this could change their  
spacing and lead to expensive repairs.  
Clean the machine regularly from grass, leaves and  
other waste.  
8– English  
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PRESENTATION  
Presentation  
The power transmission from the engine is handled  
by a hydrostatic gear box which enables stepless  
variation of the speed with the foot pedals.  
Congratulations on your choice of a top quality  
product which you will enjoy for many years.  
There is one pedal for driving forwards and one  
pedal for reversing.  
These instructions describe the Rider 16 H. This rider  
mower is equipped with a 15.5 horsepower Briggs &  
Stratton engine.  
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Location of the controls  
1. Ignition lock  
7. Parking brake  
2. Throttle/Choke lever  
3. Adjustment of cutting height  
4. Lifting lever, cutting unit  
5. Speed limiter for reversing  
8. Lock button for parking brake  
9. Knobs for adjusting seat  
10. Fuel tank cap  
11.  
Main lock (under seat)  
6. Speed limiter for driving forwards  
12. Lever for disengagement of drive  
English – 9  
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PRESENTATION  
Throttle and Choke lever  
The engine speed is adjusted with the throttle  
control, and thereby also the rotation speed of the  
blades.  
The control is also used to activate the choke  
function. When the choke is used the engine  
receives a richer mixture of fuel and air, which  
simplifies cold start.  
Speed limiter  
2
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The speed of the machine is steplessly regulated  
with two pedals. Pedal (1) is used to drive forwards  
and pedal (2) for reversing.  
Parking brake  
The parking brake is applied as follows:  
1. Press down the brake pedal.  
2. Press in the lock button on the steering column.  
2
3. Release up the brake pedal while holding the  
button pressed.  
The lock on the parking brake automatically discon-  
nects when the brake pedal is pressed.  
1
10 – English  
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PRESENTATION  
Cutting unit  
The Rider 16 H can be fitted with four different  
cutting units.  
Rear ejector - 970 mm  
Side ejector - 970 mm  
BioClip  
- 900 mm, 1030 mm  
Lift lever for cutting unit  
The lift lever is used to set the cutting unit in trans-  
port or cutting position.  
If the lever is pulled back the unit will lift up and the  
blades will automatically stop rotating (transport  
position).  
If the lock button is pressed and the lever is moved  
forward the unit will be lowered and the blades will  
automatically start rotating (cutting position).  
The lever can also be used to temporarily regulate  
the cutting height, e.g. for a small mound in the  
lawn.  
Lifting of the cutting unit (transport position)  
Lowering of the cutting unit (cutting position)  
English – 11  
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PRESENTATION  
Lever for adjustment of cutting height  
With this lever the cutting height can be adjusted to  
9 different positions (4-90 mm, 45-80 mm Bioclip).  
Cutting unit with side/rear ejector, 40-90 mm.  
BioClip cutting unit, 45-95 mm.  
Seat  
The seat has a jointed attachment on the front  
edge and can be tipped forward.  
The seat can also be adjusted lengthways.  
Release the knobs under the seat and adjust it  
forwards or backwards to the required position.  
Lock the setting with the knobs.  
Fuelling  
The engine should be run on 85 octane (or higher)  
unleaded petrol/gasoline (no added oil). Environ-  
mentally adapted alkylate fuel, such as Aspen, is  
also recommended.  
WARNING!  
Petrol/gasoline is highly inflammable.  
Observe care and fill up with fuel  
outdoors (see safety instructions).  
!
12 – English  
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DRIVING  
Read the safety instructions and information on  
the location and function of the controls before  
starting (see pages 3-12).  
Conduct daily maintenance before starting (see  
maintenance schedule on page 18).  
Adjust the seat to the required position.  
Starting the engine  
1. Lift up the cutting unit by pulling the lever back-  
wards to locked position (transport position).  
2. Apply the parking brake. This is done as follows:  
• Press down the brake pedal (1).  
2
• Press in the lock button on the steering  
column (2).  
• Release the brake pedal while the button is  
held pressed.  
The parking brake lock disconnects automati  
cally when the brake pedal is pressed down.  
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Cold engine:  
3. Push the throttle control to position 3 (choke  
position). In this position the engine receives a  
richer mixture so that the engine starts more  
easily.  
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English – 13  
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DRIVING  
Warm engine:  
4. Set the throttle control midway between position  
1 and 2.  
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5. Turn the ignition key to start position.  
STOP START  
IMPORTANT INFORMATION  
Do not run the starter for more than  
about 5 seconds at a time. If the  
engine does not start, wait about 10  
seconds before trying again.  
6. When the engine has started release the igni-  
tion key to neutral position.  
Push the throttle control to the required speed.  
For cutting 3/4 to full throttle.  
STOP START  
WARNING!  
!
Never run the engine indoors, in  
enclosed or poorly ventilated areas.  
The exhaust fumes contain toxic  
carbon monoxide.  
14 – English  
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DRIVING  
Driving the machine  
1. Release the parking brake by pressing down the  
brake pedal.  
2. Carefully press down one of the pedals until the  
correct speed is reached.  
2
1
To drive forwards: press down pedal (1).  
To reverse: press down pedal (2).  
3. Select the required cutting height (1-9) with the  
cutting height lever.  
To obtain a uniform cutting height it is important  
that the tyre pressures are equal on both front  
wheels (60 kPa).  
English – 15  
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DRIVING  
4. Push in the lock button on the lift lever and  
lower down the cutting unit.  
IMPORTANT INFORMATION  
The service-life of the drive belts in-  
creases considerably if the engine is run  
at low speed when engaging the blades.  
For this reason do not increase the throt-  
tle until the cutting unit has been lowered  
to the cutting position.  
Cutting tips  
Avoid mowing a wet lawn. The mowing results  
are inferior since the wheels sink down into the  
soft lawn.  
Localise and mark stones and other fixed  
objects to avoid collision.  
Start with a high cutting height and reduce down  
until the required cutting result are obtained.  
Wash down the underside of the cutting unit with  
water after use. Do not use a high pressure jet.  
Put the cutting unit in the service position while  
doing this.  
The cutting results are best with a high engine  
speed (fast rotating blades) and low driving  
speed (slow moving machine). If the grass is not  
too high and thick the driving speed can be  
increased or the engine speed reduced without  
noticeably affecting the mowing results.  
The best lawns are achieved if the grass is cut  
often. Mowing becomes more uniform and the  
grass cuttings become more evenly distributed  
over the surface. The total time consumption is  
not greater since it is possible to select a higher  
driving speed without inferior mowing results.  
WARNING!  
!
Clear the lawn from stones and  
other object which can be thrown  
out by the blades.  
Mowing pattern  
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DRIVING  
WARNING!  
Never drive the machine on ground  
with a slope of more than 15°. Mow  
slopes upwards and downwards,  
never across. Avoid sudden changes  
in direction.  
!
MAX 15  
Stopping the engine  
Preferably allow the engine to idle for a minute to  
obtain normal working temperature before stopping  
it if it has been working hard.  
1. Lift up the cutting unit by pulling the lever back to  
the end position.  
2. Pull back the throttle control and turn the ignition  
key to the STOP position.  
STOP START  
Release lever  
In order to move the machine when the engine is  
switched off the release lever must be pressed  
down and forwards.  
English – 17  
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MAINTENANCE  
Maintenance schedule  
The following is a list of the maintenance which should be conducted on the machine. For the items which  
are not described in these instructions go to an authorised service workshop.  
Daily  
mainte-  
nance  
Maintenance interval  
in hours  
Maintenance  
Page  
before start  
100  
25  
50  
Check the engine’s oil level  
Check the engine’s cooling air inlet  
Check the fuel pump’s air filter  
Check the steering wires  
Check the battery  
20  
20  
20  
21  
22  
22  
Check the safety system  
Check screws and nuts  
Check for fuel and oil leakage  
Clean the air filter’s pre-filter (foam plastic)2)  
Check the cutting unit  
23  
25  
32  
34  
Check the tyre pressures (60 kPa)  
Change the engine oil 1)  
Check the V-belts  
Check the hydrostat’s cooling fins  
Check the transmission’s oil level  
Adjust the brakes  
Lubricate joints and shafts 3)  
22  
21  
32  
35  
Check and adjust the throttle wire  
Clean the engine’s and hydrostat’s cooling flanges 2,4)  
Replace the air filter’s pre-filter and paper filter 2)  
Replace the fuel filter  
23  
35  
Replace the plug  
1) First change after 5 hours. 2) During dusty conditions cleaning and replacement should be more frequent. 3) For daily use of the  
machine lubrication should be conducted twice a week. 4) Conducted by authorised service workshop.  
= Described in these instructions.  
= Not described in these instructions.  
WARNING!  
!
No service procedures must be conducted on the engine or cutting unit unless:  
The engine is switched off.  
The ignition key is removed.  
The parking brake is applied.  
The cutting unit is disengaged.  
The ignition cable is removed from the plug.  
18 – English  
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MAINTENANCE  
Dismantling of the machine hoods  
Engine hood  
The engine is accessible for servicing when the  
engine hood is lifted up.  
Tilt the seat forward, release the rubber strap under  
the seat, and tilt the hood backwards.  
Front hood  
Release the clip on the front hood and lift off the  
fender.  
Right-hand fender  
Remove the knob (1), the screws (2 and 3) and lift  
off the hood.  
3
2
11
Left-hand fender  
Release the screws in the fender (2) and lift off the  
fender.  
English – 19  
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MAINTENANCE  
Check the engine’s oil level  
Check the oil level in the engine when the machine  
is horizontal.  
Dismantle the engine hood as per the description  
on page 19.  
Release the dip stick and pull out. Wipe off the oil  
and insert again.  
The dip stick must be fully screwed down.  
Now release the dip stick again and pull out. Check  
the oil level.  
The oil level should lie between the markings on dip  
stick. If the level approaches the ADD mark, top up  
with oil to the FULL mark.  
ADD  
FULL  
The oil is filled in the same hole for the dip stick  
Use engine oil SAE 30 or SAE 10W/30, class CD-  
SF.  
The total oil volume in the engine is 1.2 litres.  
ADD  
FULL  
Check the engine’s cooling air intake  
Dismantle the engine hood as described on page  
19.  
Check that the cooling intake is free from leaves,  
grass and dirt.  
If the cooling intake is blocked this will interfere with  
the cooling of the engine, which can damage the  
engine.  
Checking of the fuel pump’s air filter  
Check regularly that the fuel pump’s air filter is free  
from dirt.  
The filter can when necessary be cleaned with a  
brush.  
20 – English  
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MAINTENANCE  
Checking and adjustment of the  
steering wires  
The steering is controlled by means of wires.  
These can in time become slack, which implies that  
the adjustment of the steering becomes altered.  
Check and adjust the steering as follows:  
1. Dismantle the frame-plate by releasing the  
screws (two on each side).  
2. Check the tension of the steering wires by  
pushing them together as shown in the diagram.  
It should be possible to push them together so  
that the distance between them is half as much,  
without using unnecessary force.  
3. When necessary the wires can be tensioned by  
tightening the adjusting nuts, one on each side  
of the steering rim.  
Do not tension the wires too tightly, they should  
only be tightened up to the steering rim.  
Check the wire tension on completion of the  
adjustment as per item 2.  
Adjusting the brake  
The brake is adjusted as follows:  
1. Release the lock nuts (1).  
2. Tension the wire with the adjusting screw (2)  
until all the play in the wire is taken up.  
3. Tighten the lock nuts (1).  
WARNING!  
!
Poorly adjusted brakes can result  
in reduced braking power.  
English – 21  
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MAINTENANCE  
Check the transmission’s oil level  
1. Check the transmission’s oil level by removing  
the transmission cover. Release the two screws  
(one of each side) and lift off the transmission  
cover.  
2. Unscrew the oil cap and check that the oil level  
lies between the markings on the dip stick. Top  
up if necessary with engine oil SAE 10W/30  
(class CD-SF) in the same hole as for the dip  
stick.  
FULL  
Check the level of the battery acid  
Check that the level of the battery acid lies between  
the markings. Top up the cells with only distilled  
water.  
WARNING!  
!
Procedures on contact with acid  
External: Rinse well with plenty of water.  
Internal: Drink large quantities of water or  
milk. Contact a doctor as soon as  
possible.  
Eyes:  
Rinse well with plenty of water.  
Contact a doctor as soon as possible.  
Batteries emit explosive gas. Sparks, flames  
and cigarettes must absolutely not be  
brought into the vicinity of the battery.  
Check the safety system  
The machine is equipped with a safety system which prevents starting the cutting unit or driving the machine  
unless someone is sitting in the seat.  
Apply the parking brake and raise the cutting unit into the transport position. Start the engine. When the  
cutting unit is lowered into the mowing position the engine should stop.  
22 – English  
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MAINTENANCE  
Replacing the air filter  
If the engine seems to lack power or goes irregu-  
larly the reason may be that the air filter is clogged.  
It is therefore important to replace the air filter at  
regular intervals (see maintenance schedule on  
page 16 for correct service interval).  
1. Dismantle the engine hood as described on  
page 19.  
2. Remove the air filter housing’s plastic cover by  
releasing the wing-nut.  
3. Remove the wing-nut on the air filter and lift off  
the paper filter with pre-filter.  
4. Pull off the foam plastic pre-filter from the paper  
filter and wash clean in mild detergent.  
Squeeze it dry in a clean cloth.  
Drench it with new engine oil. Wrap the filter in  
an absorbent cloth and squeeze out excess oil.  
Replace the paper filter if it is clogged with dirt.  
IMPORTANT INFORMATION  
Do not use compressed air to clean the  
paper filter.  
5. Fit the air filter as follows:  
Push the pre-filter over the paper filter.  
Fit the paper filter with pre-filter in the air filter  
housing and tighten the wing-nut.  
Replace the plastic cover oven the air filter  
housing and tighten the wing-nut.  
English – 23  
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MAINTENANCE  
Fitting the cutting unit  
3
1. Position the Rider on a flat surface and apply  
the parking brake, see page 10. Check that the  
lever for adjusting the cutting height is at the  
lowest setting.  
Make sure the support wheels are fitted to the  
cutting unit (1).  
2. Grasp the handle at the front (BioClip 90) or  
hold the frame of the cutting unit (2) and slide  
the unit underneath the rider mower, making  
sure that the tongue on the cutting unit (3)  
engages correctly.  
1
2
3. Insert the bolt and secure it with a locking pin.  
4. Press down the frame and insert the pin. Fit the  
drive belt around the drive wheels of the cutting  
unit.  
5. Hook up the height adjustment strut.  
6. Fit the front cover.  
7. Fit the spring that tensions the tensioning  
pulley, see page 27.  
Installing BioClip 90  
1
In order to install BioClip 90 the drive belt support  
wheel must first be removed.  
1. Disengage the spring from the tensioning wheel.  
2
3. Remove the locking pin (1) that is located next  
to the support wheel.  
8
4. Fit the cutting unit as instructed on the previous  
page.  
24 – English  
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MAINTENANCE  
Checking and adjustment of the cutting  
unit’s ground pressure  
To achieve the best cutting results the cutting unit  
should follow the underlying surface without press-  
ing too hard against it.  
The pressure is adjusted with a screw on each side  
of the machine.  
1. Place a set of bathroom scales under the cutting  
unit’s frame (front edge) so that it rests on the  
scales. If necessary a block can be placed  
between the frame and scales so that the  
support wheels do not bear any weight.  
2. Adjust the unit’s ground pressure by screwing in  
or out the adjusting screws located behind the  
front wheels on both sides.  
The ground pressure should be between 12 and  
15 kg.  
Checking the cutting unit’s parallelism  
Check the parallelism of the cutting unit as follows:  
1. Place the machine on a level surface.  
2. Measure the distance between the ground and  
the front and rear edges of the cutting unit hood.  
The cutting unit should slope forwards slightly so  
that the rear edge is 2-4 mm higher than the  
front edge.  
English – 25  
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MAINTENANCE  
Adjusting the parallelism of the cutting  
unit  
1. Remove the front hood and right-hand fender,  
as described on page 19.  
2. Undo the nuts on the lift strut.  
3. Unscrew the strut (anticlockwise) to lower the  
rear edge of the hood.  
Screw the strut in (clockwise) to raise the rear  
edge of the hood.  
4. Tighten the nuts after adjustment.  
5. On completion of the adjustment the unit’s  
parallelism should be re-checked.  
6. Fit the right-hand fender and the front hood.  
Removing the cutting unit  
3
4
1. Apply the parking brake, see page 10.  
2. Adjust the cutting height to its lowest setting.  
3. Remove the front hood, as described on page  
19.  
4. Fit the support wheel.  
5. Relieve the tensioning wheel (2) by disconnect-  
ing the spring (1).  
6. Lift the drive belt (3) off the cutting unit drive  
pulley (4).  
1
2
7. Pull out the pin (2) and hang the drive belt on  
the pin.  
2
8. Put your foot on the front edge of the cutting  
unit. Raise the front edge of the cutting unit  
slightly and unhook the lift strut (1).  
9. Remove the bolt (3) and pull out the cutting unit.  
Fitting of the cutting unit takes place in the reverse  
order to removal. See page 24 for details of how to  
fit the BioClip 90.  
1
During fitting: make sure that the tongue on the  
cutting unit engages in the correct position.  
3
WARNING!  
!
Wear protective glasses when  
dismantling the cutting unit. The  
spring which tensions up the belt  
can go off and cause personal  
injury.  
26 – English  
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MAINTENANCE  
Replacing the cutting unit belts  
Replacing the belts on a BioClip unit  
A BioClip unit is driven by two toothed belts that  
synchronise the rotation of the blades. The belts sit  
underneath a cover on the cutting unit.  
1. Remove the cutting unit, see page 26.  
2. Remove the front pin/bolt from the lift strut and  
swing the strut backwards.  
BioClip 103  
3. Undo the two screws that hold the safety cover  
and lift the cover off.  
BioClip 103  
4. Unscrew the nut from the cam and twist the cam  
off.  
Undo the four nuts (see diagram) that hold the  
outer blade bearing, just enough to allow the  
bearing to be moved.  
Slide the blade bearing inwards towards the middle  
bearing and prise off the upper belt.  
Repeat the procedure with the lower belt.  
BioClip 103  
WARNING!  
!
Wear gloves to protect your hands  
when working with the blades.  
English – 27  
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MAINTENANCE  
IMPORTANT IMFORMATION  
On a BioClip unit the blades are set at an  
angle of 90° to each other. If this angle  
changes, the blades may touch and cause  
damage to the cutting unit.  
5. Fitting: First slide on the lower belt, then the  
upper belt.  
Check that the blades appear as shown in the  
diagram, at an angle of 90° to each other. If not,  
adjust the belts. While the blade bearing is loose  
the belts can be slid onto the next tooth.  
BioClip 103  
Tighten the nuts sufficiently so that the bearings  
are touching the cutting deck but can still be  
moved.  
Tension the belts by turning the cam mechanism  
on top of the cutting deck. Tighten the nut.  
Tighten all the nuts to secure the blade bear-  
ings.  
6. The belt tension is correct when a force of 10 N  
pushes the belt in 7 mm.  
Fit the safety cover over the belts and refit the  
lift strut.  
Changing the belt on cutting units with side  
ejection or rear ejection  
On cutting units with side ejection or rear ejection  
the blades are driven by a V-belt. This belt is  
replaced as follows:  
1. Remove the cutting unit, see page 26.  
2. Undo the bolt on the lift strut and the two screws  
on the cover. Lift the cover off the cutting unit.  
3. Release the spring that tensions the V-belt and  
prise off the belt.  
Replace the new belt by reversing the se-  
quence.  
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MAINTENANCE  
Service position for cutting unit  
The cutting head can be placed in the service  
position to provide easy access for cleaning, repairs  
and servicing. In the service position the cutting unit  
is raised and locked in the vertical position.  
P
1
Placing in service position  
1. Position the machine on flat ground. Apply the  
parking brake (1), see page 8. Adjust the cutting  
unit to the lowest cutting height and lower the  
cutting unit.  
2. Remove the front hood by removing the pin.  
(There are complete instructions on using the  
service position inside the front hood).  
3. Remove the two support wheels from under the  
front hood.  
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MAINTENANCE  
4. Fit the support wheels on either side of the rear  
of the cutting unit.  
5. Disengage the spring from the drive belt  
tensioning wheel.  
6. Place a foot on the front edge of the cutting unit  
near the wheel and raise the front edge of the  
unit to make it easier to remove the lift strut.  
Engage the strut in the holder.  
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MAINTENANCE  
7. Lift off the drive belt (1). Then pull out the pin  
(2).  
Take care not to get your hand trapped.  
1
2
8.  
Pull the frame forwards and insert the pin.  
9. Grasp the front edge of the cutting unit, pull out  
and raise into the service position.  
Restoring from service position  
To restore the machine from the service position,  
reverse the sequence “Placing in Service position“.  
English – 31  
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MAINTENANCE  
Lubrication  
The following two lubrication points should be  
regularly lubricated with high quality graphite  
grease.  
With daily use lubrication should be conducted  
twice a week.  
General lubrication  
All joints and bearings are lubricated on manufac-  
ture with molybdenum sulphide grease. Re-grease  
with same type of grease. Lubricate the steering  
and control wires with engine oil.  
The machine should be lubricated regularly, and  
twice a week when used daily.  
Checking the tyre pressure  
The tyre pressure should be 60 kPa (0.6 kp/cm2) all  
round.  
To improve driving the pressure on the rear tyres  
can be reduced to 40 kPa (0.4 kp/cm2).  
The maximum tyre pressure is 100 kPa (1.0 kp/cm2).  
IMPORTANT INFORMATION  
Different tyre pressures on the front tyres  
will result in the blades cutting the grass  
at different heights.  
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MAINTENANCE  
Checking the blades  
IMPORTANT INFORMATION  
To achieve the best mowing results it is important  
that the blades are undamaged and well-sharpened.  
On the Bioclip unit the relative positioning  
of the blades should always be as shown  
in the diagram with an angle of 90°  
between the blades. Otherwise the blades  
can go against each other and damage  
the unit.  
Check that the blades’ attachment screws are tight.  
IMPORTANT INFORMATION  
Replacing or sharpening the blades should  
be conducted by an authorised service  
workshop.  
Cutting units with rear ejection  
BioClip103  
BioClip 90  
Cutting units with side ejection  
English – 33  
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MAINTENANCE  
Changing the oil  
The oil should be changed for the first time after 5  
hours of running time. Thereafter it should be  
changed every 25 hours of running time.  
WARNING!  
!
Engine oil can be very hot if it is  
drained off directly after the  
engine is stopped. Therefore allow  
the engine to cool down first.  
1. Place a receptacle under the engine’s drain  
plug, located on the left-hand side of the engine.  
2. Remove the dip stick and drain plug.  
3. Let the oil run out into the receptacle.  
4. Fit the drain plug and tighten.  
5. Fill up with oil to the FULL mark on the dip stick.  
The oil is filled in the same hole for the dip stick.  
Use engine oil SAE 30 or SAE 10W/30, class  
CD-SF.  
ADD  
FULL  
Use engine oil with min. API SF quality and SAE  
30 or SAE 10W/30 viscosity grade. The oil  
volume in the engine is 1.2 litres.  
6. Run the engine warm and then check that there  
is no leakage from the drain plug.  
ADD  
FULL  
IMPORTANT INFORMATION  
Used engine oil is hazardous to health and  
environment and must in accordance with  
the law not be poured out on the ground  
or in the nature, and must be handed in to  
a workshop or other designated station for  
treatment. Avoid skin contact, wash with  
soap and water in the event of spillage.  
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MAINTENANCE  
Checking and adjustment of the  
throttle wire  
If the engine does not respond as it should do when  
the throttle lever is moved or if the top speed is not  
reached, the throttle wire may need adjusting.  
1. Release the clamping screw (see arrow) and  
push the throttle control to full throttle position.  
2. Pull the throttle wire’s outer casing to the far  
right and tighten the clamping screw.  
Replacement of the fuel filter  
Replace the pipe fitted fuel filter every 100 running  
hours (once per season) or more frequently if it is  
clogged.  
Replace the filter as follows:  
1. Dismantle the engine hood as described on  
page 17.  
2. Move the hose clips away from the filter. Use a  
pair of flat pliers.  
3. Pull off the filter from the hose ends.  
4. Press in the new filter on the hose ends. If  
necessary soap solution can be applied on the  
filter ends to simplify fitting.  
5. Push the hose clips back on the filter.  
English – 35  
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TROUBLE SHOOTING SCHEDULE  
Problem  
Procedure  
Engine will not start.  
Fuel tank empty.  
Plug defective.  
Plug connection defective.  
Dirt in carburettor or fuel pipe.  
Starter does not pull round engine.  
Battery flat.  
Bad contact between cable and battery terminal.  
Lift lever for cutting unit in wrong position.  
Main fuse blown. The fuse is placed in front of the  
battery, under the battery cover.  
Ignition lock faulty.  
Gear shift/hydrostat pedal not in neutral.  
Engine does not run smoothly.  
Wrong gear, too high.  
Carburettor incorrectly set.  
Air filter clogged.  
Fuel tank vent blocked.  
Ignition setting defective.  
Dirt in fuel pipe.  
Engine seems to have no power.  
Air filter clogged.  
Plug defective.  
Dirt in carburettor or fuel pipe.  
Carburettor incorrectly set.  
Engine overheats.  
Engine overloaded.  
Air intake or cooling flanges blocked.  
Fan damaged.  
Too little or no oil in engine.  
Ignition defective.  
Plug defective.  
Battery does not charge.  
Machine vibrates.  
One or more cells faulty  
Bad contact between battery terminals and cables.  
Blades are loose.  
Engine is loose.  
Imbalance on one or more blades, resulting from  
damage or inferior balancing after sharpening.  
Uneven mowing.  
Blades blunt.  
Cutting unit skew.  
Long or wet grass.  
Grass blockage under hood.  
Different tyre pressures on right and left sides.  
Over-speeding  
Drive belts slipping.  
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STORAGE  
Winter storage  
To put the machine in order for storage follow these  
instructions:  
At the end of the season the machine should  
immediately be put in order for storage, also if it is  
going to stand idle for more than 30 days. Fuel  
which is left to stand for long periods (30 days or  
more) can leave tacky deposits which can block the  
carburettor and interfere with the engine.  
1. Carefully clean the machine, especially under  
the cutting unit. Touch-up paint damage to avoid  
rust.  
2. Inspect the machine for worn or damaged parts  
and tighten loose screws and nuts.  
Fuel stabiliser is an acceptable alternative to avoid  
tacky deposits during storage. If alkylate petrol  
(Aspen) is used stabiliser is not necessary since  
this fuel is stable. However, one should avoid  
changing from standard to alkylate petrol since  
sensitive rubber parts can harden. Add stabiliser to  
the fuel in the tank or the storage container. Always  
use the mixing ratios indicated by the manufacturer.  
Run the engine for at least 10 minutes after adding  
the stabiliser so that it will reach the carburettor. Do  
not empty the fuel tank and carburettor if stabiliser  
has been added.  
3. Change the oil, and take care of the waste oil.  
4. Empty the fuel tank. Start the engine and run it  
until the carburettor is emptied of fuel.  
5. Remove the plug and pour in a tablespoon of  
engine oil in each cylinder. Pull round the engine  
to distribute the oil and screw the plug back on.  
6. Grease all grease nipples, joints and axles.  
7. Remove the battery. Clean it, charge it, and  
store it is a cool place. Protect the battery from  
low temperatures (below freezing point).  
8. Store the machine is a clean and dry place and  
cover it over for extra protection.  
WARNING!  
Never place an engine with fuel in  
the tank indoors or in poorly  
ventilated areas where petrol fumes  
can come into contact with naked  
flames, sparks or pilot flames in  
boilers, hot water heaters, or  
!
Service  
When ordering spare parts state the purchase year,  
model, type, and serial number.  
Always use genuine parts.  
drying cabinets, etc. It is highly  
inflammable and negligent usage  
can cause severe person injury  
and material damage. Drain off  
the fuel in an approved container  
outdoors and well clear of naked  
flames. Never use petrol for cleaning  
purposes. Use degreasing agents  
and hot water instead.  
Annual inspection or trimming by an authorised  
service workshop is a good way of getting the best  
out of your machine the next season.  
English – 37  
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TECHNICAL DATA  
Dimensions  
Rider 16 H  
Length without cutting unit  
Width without cutting unit  
Height  
2145 mm  
1050 mm  
1060 mm  
Service weight  
Wheel base  
245 kg including cutting unit  
855 mm  
Track  
Tyre size  
Tyre pressure, front  
& rear  
Front 715 mm, rear 625 mm  
16 x 6.50 x 8  
60 kPa (0.6 kp/cm2)  
Max. gradient  
15°  
Engine  
Manufacture  
Power  
Displacement  
Fuel  
Tank volume  
Oil  
Oil volume  
Start  
Briggs & Stratton model 28N707  
11.4/15.5 kW/h.p.  
465 cm3  
Min. 85 octane unleaded  
7 litres  
SAE 30 or SAE 10W/30 class CD-SF  
1.2 litres  
Electric starter  
Electrical system  
Type  
12 V, negative earth  
Battery  
Spark plug  
12 V. 24 Ah  
Champion CJ8 or J8, electrode gap = 0.7-0.8 mm  
Transmission  
Manufacture  
Oil  
Tuff Torq  
SAE 10W/30, class CD-SF  
Cutting unit  
Type  
3-blade unit with side-rear ejection/BioClip  
2-blade unit BioClip 900 mm  
Cutting width  
Cutting height  
Blade diameter  
970 mm, 900mm and 1030 mm (BioClip)  
9 pos. 40-90 mm, 45-95 mm (BioClip)  
350 mm, 410 mm (Bioclip)  
Noise level  
100 dB(A)  
When this product is worn out or no longer used it should be returned to  
the dealer or other appropriate body for recycling.  
We reserve the right to change technical specifications without prior notice.  
Note that no legal claims are valid on the basis of information in this manual.  
Use only genuine parts for repairs. The warranty is not valid if non genuine parts are used.  
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EU declaration of conformity (Only applies to Europe)  
(Directive 89/392/EEC, Annex II, A)  
We, Husqvarna AB, S-561 82 Huskvarna, Sweden, tel. +46 36-146500, declare under sole responsibility that  
the rider mowers Husqvarna Rider 16 H from 1998’s serial numbers and onwards (the year is clearly  
stated in plain text on the type plate with subsequent serial number), is in conformity with the following standards  
or other normative documents following the provisions in the COUNCIL’S DIRECTIVES:  
-
-
of June 14 1989 “relating to machinery” 89/392/EEC, and applicable supplements.  
of March 22 1984 “relating to permitted sound power levels for lawn mowers” 84/538/EEC, and applicable  
supplements.  
-
of May 3 1989 “relating to electromagnetic compatibility” 89/336/EEC, and applicable supplements.  
The following standards have been applied: EN292-2, EN836.  
Huskvarna October 16, 1998  
Bo Andréasson, Development manager  
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40 – English  
´*3(•¶5b¨  
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English – 41  
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´*3(•¶5b¨  
2000W06  
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