Briggs Stratton Lawn Mower RIDER 11 User Manual
Workshop manual  
Rider 11, Rider 13,  
Rider 11 Bio, Rider 13 Bio,  
Rider 16  
English  
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Safety regulations  
Special instructions  
General instructions  
The fuel used in the ride-on mower has the  
following hazardous characteristics:  
The workshop handbook is written for personnel who  
are assumed to have general ride-on mower repara-  
tion and service know-how.  
• Toxic fluid and fumes  
• Can cause eye and skin complaints  
• Can cause breathing difficulties  
• Highly flammable  
The workshop where the ride-on mower is repaired  
should be equipped with safety devices in  
accordance with local regulations.  
No-one should attempt to repair the ride-on mower  
without having first read and understood the contents  
of this handbook.  
When using compressed air, do not direct the  
compressed air stream towards your, or anybody  
else's, body. Air can be forced into the blood  
stream, thereby constituting a danger to life .  
The machine is tested and approved only with the  
equipment originally provided or recommended by  
the manufacturer.  
Use eye protection when working with tensioned  
springs.  
The below-mentioned boxes are included in this  
workshop handbook, as is appropriate.  
Use hearing protectors when test driving.  
After test driving, do not touch the silencer before it  
has cooled down. Risk of burn injuries. This  
especially applies if the ride-on mower is equipped  
with a catalytic converter. If consumed, the lining on  
and in the catalytic converter element is dangerous  
to health. Use protective gloves when working with  
the catalytic converter/silencer.  
WARNING!  
The warning box indicates a  
risk of injury to persons if the  
instructions are not followed.  
The blades are sharp and can cause cutting  
injuries. Always use protective gloves when you are  
handling the blades.  
IMPORTANT INFORMATION  
This box indicates a risk of damage to the  
material if the instructions are not  
followed.  
Use protective glasses when working with the  
mowing deck. If the belt's tension spring comes off  
and flies upwards, this can cause injury to persons.  
Use eye protection when working with the battery  
with the plugs removed. Be extra careful when  
handling battery acid. Spilling acid on the skin can  
cause severe burn injuries. If acid is spilt on the  
skin, 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.  
IMPORTANT INFORMATION  
Waste oil and old filters shall be handled  
as hazardous waste.  
2– English  
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Special tools  
The following special tools are used when working on the ride-on mower.  
Special tools for the engine and transmission are specified in resp. Workshop Manuals.  
506 66 48-01 Puller for engine pulley.  
506 79 06-01 Ball-ended Allen key 3/8" to unscrew the engine pulley socket head cap screw (Briggs &  
Stratton).  
506 89 92-01 Counter-hold for engine belt pulley.  
506 89 93-01 Tool for the articulation spring.  
535 41 32-01 Set of drifts for bushings on the swing axle.  
English – 3  
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Technical data  
Dimensions:  
Length  
Width  
Height (over steering wheel)  
Weight  
Track front  
Track rear  
Wheel base  
Tyre size  
Air pressure  
Max. gradient  
Rider 11  
Rider 13  
2 090 mm/6,85 ft  
880 mm/2,89 ft  
1 070 mm/3,52 ft  
197 kg/433 lb  
720 mm/2,36 ft  
620 mm/2,04 ft  
860 mm/2,81 ft  
16 x 6.50 x 8  
60 kPa/8,5 PSI  
15°  
2 000 mm/6,56 ft  
900 mm/2,95 ft  
1 060 m/3,48 ft  
190 kg/419 lb  
625 mm/2,05 ft  
625 mm/2,05 ft  
860 mm/2,81 ft  
16 x 6.50 x 8  
60 kPa/8,5 PSI  
15°  
Engine:  
Manufacture  
Model  
Rider 11  
Briggs & Stratton  
28N707  
Rider 13  
Briggs & Stratton  
286707  
Power  
Displacement  
Fuel  
Tank capacity  
Oil  
7,7/10,5 kW/hp  
362 cm3  
min. 85 octane unleaded  
7 litres/7,4 USqt  
SAE 30 or SAE 10W/30  
class SF-CC  
9,2/12,5 kW/hp  
465 cm3  
min. 85 octane unleaded  
7 litres/7,4 USqt  
SAE 30 or SAE 10W/30  
class SF-CC  
Oil capacity  
1,4 litres/1,5 USqt  
1,4 litres/1,5 USqt  
Gearbox:  
Rider 11  
Rider 13  
Manufacture  
Peerless MST 205  
Tuff Torq K46  
Oil  
SAE 10W/30 class SF-CC  
2,2 litres/2,35 USqt  
Oil capacity  
Gears, forwards  
Gears, reverse  
5
1
Electrical system  
Type  
Rider 11  
12 V, negative earth  
Rider 13  
12 V, negative earth  
Battery  
12 V, 24 Ah  
12 V, 24 Ah  
Main fuse  
Spark plug  
Spark plug gap  
Flat pin yoke 15 A  
Champion CJ8 or J8  
0,75 mm/0,030"  
Flat pin yoke 15 A  
Champion CJ8 or J8  
0,75 mm/0,030"  
Tightening moments  
Play  
Carrier steering  
Pulley steering wire  
Belt wheel  
5–10 Nm 3,5-7 lbft  
Clutch wire R 11:  
8–10 mm  
(5/16" - 3/8")  
20–30 Nm 14-21 lbft  
35–40 Nm 25-28 lbft  
45–50 Nm 32-36 lbft  
20–25 Nm 14-18 lbft  
15–25 Nm 10-18 lbft  
20–25 Nm 14-18 lbft  
20–25 Nm 14-18 lbft  
70–80 Nm 50-56 lbft  
Brake control lever against stop  
bolt R 11:  
Blades  
0–1 mm  
(0 - 0.040")  
7–9 mm  
(1/4" - 3/8")  
1 mm  
Blade bearings  
Belt tensioner wheel  
Holder screws, engine  
Holder screws, gear box  
Engine pulley  
Brake control lever R 11:  
Brake wires R13, R16:  
(0.040")  
Wires, hydrostatic transmission  
pedals R13, R16:  
0 mm  
4– English  
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Technical data  
Dimensions:  
Length  
Width  
Height (over steering wheel)  
Weight  
Track front  
Track rear  
Wheel base  
Tyre size  
Air pressure  
Max. gradient  
Rider 16  
2 000 mm/6,56 ft  
900 mm/2,95 ft  
1 060 mm/3,48 ft  
208 kg/459 lb  
625 mm/2,05 ft  
625 mm/2,05 ft  
860 mm/2,81 ft  
16 x 6.50 x 8  
60 kPa/8,5 PSI  
15°  
Engine:  
Rider 16  
Briggs & Stratton  
28N707  
282H070110E1  
Manufacture  
Model - 2002  
Model 2003 -  
Power  
Displacement  
Fuel  
Tank capacity  
Oil mineral-2002  
Oil synthetic 2003 -  
Oil mineral 2003 -  
Oil capacity  
11,4/15,5 kW/hp  
465 cm3/28,42 cu inch  
min 85 octane unleaded  
7 litres/7,4 USqt  
SAE 30 or 10W/30 class CD-CF  
SAE 5W/30 or 10W/30 class SJ-CF  
or SAE 30 class SF-CC  
1,4 litres/1,5 USqt  
Gearbox:  
Manufacture  
Oil  
Rider 16  
Tuff Torq K 46  
SAE 10W/30 class SF-CC  
2,2 litres/2,35 USqt  
Oil capacity  
Electrical system  
Type  
Battery  
Rider 16  
12 V, negative earth  
12 V, 24 Ah  
Main fuse  
Flat pin yoke 15 A  
Champion CJ8 or J8  
Champion QC12YC  
0,75 mm/0,030"  
Spark plug - 2002  
Spark plug 2003 -  
Spark plug gap  
Mowing deck:  
Cutting width  
Cutting height  
Blade length  
Noise level  
Rear ejector 85 Rear ejector 97 Side ejector 97 Bio 90  
Bio 103  
850 mm  
40-90 mm  
304 mm  
100 dB(A)  
29,0 kg  
970 mm  
40-90 mm  
350 mm  
100 dB(A)  
48,0 kg  
970 mm  
40-80 mm  
350 mm  
100 dB(A)  
45,0 kg  
900 mm  
45-95 mm  
480 mm  
100 dB(A)  
39,0 kg  
1 030 mm  
45-95 mm  
410 mm  
100 dB(A)  
47,0 kg  
Weight  
Overall width  
950 mm  
1 075 mm  
1 300 mm  
1 000 mm  
1 115 mm  
Mowing deck:  
Cutting width  
Cutting height  
Blade length  
Noise level  
BioClip 112  
1 200 mm  
40-90 mm  
420 mm  
100 dB(A)  
50,0 kg  
Combi 103  
1 030 mm  
45-95 mm  
410 mm  
100 dB(A)  
47,0 kg  
Combi 112  
1 220 mm  
40-90 mm  
420 mm  
100 dB(A)  
52,0 kg  
Weight  
Overall width  
1 230 mm  
1 115 mm  
1 230 mm  
English – 5  
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Technical data  
Control points  
Mowing deck parallelism with cutting height in pos. 1:  
Cutting height control in pos. 1:  
2 mm  
0,079"  
Rider 11 = 37 2 mm  
Bio = 45 2 mm  
Other = 40 2 mm  
1,46" 0,079"  
1,77" 0,079"  
1,57" 0,079"  
Synchronous transmission belt tension Bio 103 version 1,  
Combi 103:  
Automatic adjustment  
7 mm  
Synchronous transmission belt tension Bio 103 version 2 at  
10 N force, impression:  
1/4"  
Synchronous transmission belt tension Bio 90 at 7 N force,  
impression:  
8 mm  
3–6 mm  
5/16"  
1/8" - 1/4"  
Dist. between support plate and drive belt:  
Distance belt tensioner control lever  
and belt guide, disengaged unit:  
17 5 mm  
7/16" 3/16"  
6– English  
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Delivery and dealer service  
Pre-delivery service  
1. Top up battery with acid and recharge for four hours.  
2. Fit the steering wheel, tow plate, and where appropriate other parts.  
3. Adjust cutting unit:  
Adjust lift springs (effective weight of cutting unit should be  
12–15 kg (26,5-33 lb), or set to maximum lift if brush is to be fitted). (Only applies to BioClip and  
Combi.)  
Adjust cutting unit so that rear edge is about 2–4 mm (1/8") higher than front edge.  
Adjust cutting unit height setting so that cutting height limit is 5 mm (3/16") above the frame of the unit  
at the lowest cutting height.  
4. Check that engine has correct amount of oil.  
5. Check that the right amount of oil is in the transmission. (Not Rider 11)  
6. Check and adjust tyre pressure (60 kPa/0,6 bar/8,5 PSI).  
7. Connect battery.  
8. Fill with fuel and start engine.  
9. Check that machine does not move in neutral. (Not Rider 11)  
10. Check:  
Forward drive.  
Reverse drive.  
Operation of blades.  
Seat safety switch.  
Lift lever safety switch.  
11. Check engine revs 2 900 - 3 100 rpm.  
Rider 16, 2003- model, 2 800-3 000 rpm.  
12. Tell customer about:  
Need and benefits of following the service schedule.  
Need and benefits of having machine serviced every 300 hours.  
The effects of maintenance on the machine’s second-hand value.  
Applications for BioClip and Combi.  
13. Complete proof of sale, etc.  
After first 5 hours  
1. Change engine oil.  
English – 7  
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Delivery and dealer service  
Dealer service  
100 hours service  
1. Carry out 25 hours service as above.  
25 hours service  
1. Change the engine oil on the side-valve engine  
(With high load and temperature on the  
overhead-valve engine).  
2. Carry out 50 hours service as above.  
3. Replace the pre-filter and filter cartridge in the  
air filter.  
2. Clean/replace the airfilter’s pre-filter or oil-foam  
element, if fitted. (More frequent intervals in  
dusty operating conditions.)  
4. Replace the fuel filter in the pipe.  
5. Clean/replace the spark plug.  
3. Clean/replace the air filter’s filter cartridge (25  
hours, 100 hours if pre-filter is fitted).  
(More frequent intervals in dusty operating  
conditions.)  
300 hours service  
1. Inspect the machine. Reach agreement with the  
customer about which additional work should be  
carried out.  
4. Check the tyre pressures.  
5. Check the mower deck (visual inspection)  
6. Lubricate the belt tensioner.  
7. Lubricate joints and axles.  
2. Carry out 25 hours service as above.  
3. Carry out 50 hours service as above.  
4. Carry out 100 hours service as above.  
5. Check the valve clearance on the engine.  
8. Adjust the brake (Rider 11).  
9. Check the V-belts.  
At least once a season  
10. Clean the engine’s cooling air intake.  
1. Change the engine oil (25/50 hours).  
11. Check/clean the hydrostatic transmission  
gear’s cooling fins.  
2. Replace the pre-filter in the air filter.  
3. Replace the filter cartridge in the air filter.  
4. Check/adjust the settings on the mowing deck.  
5. Adjust the parking brake.  
50 hours service  
1. Carry out 25 hours service as above.  
2. Change engine oil.  
6. Inspect the flame guard/spark arrester (extra  
equipment).  
3. Check the oil level in the transmission.  
(Rider 13, 16).  
7. Clean/replace the spark plug.  
4. Check/adjust the parking brake.  
(Rider 13, 16).  
8. Replace the fuel filter in the pipe.  
5. Check/adjust the throttle wire.  
9. Clean the cooling fins on the engine and trans-  
mission.  
6. Clean the cooling fins on the engine and  
transmission.  
10. Check the valve clearance on the engine.  
7. Check/adjust the settings on the mowing deck.  
11. 300 hours service should be carried out by an  
authorised service workshop.  
8. Inspect the flame guard/spark arrester.  
(extra equipment)  
8– English  
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Delivery and dealer service  
Maintenance schedule  
The following is a list of the maintenance which should be conducted on the machine. Most of the points that  
are not covered by this workshop manual are covered by the operator’s manual.  
Daily  
maintenance  
before  
Maintenance interval in  
hours  
Page  
Maintenance  
100  
25  
50  
starting  
Check the oil level in the engine  
Check the engine’s cooling air intake  
Check the fuel pump’s air filter  
Check the steering wires  
Check the brakes  
Check the battery  
12  
-
-
29  
31  
11  
61  
-
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Check the safety system  
Check the screws and nuts  
Check if there is any fuel or oil leakage  
Clean around the silencer  
-
1)  
Change the engine oil side-valve engine 1)  
Change the engine oil overhead-valve engine 1)  
Clean the air filter’s pre-filter 2)  
Check the mower deck  
Check the tyre pressures (60 kPa)  
Lubricate the belt tensioner 3)  
Lubricate joints and axles 3)  
Adjust the brakes, Rider 11  
Check the V-belts  
28  
28  
-
47  
13  
-
-
31  
-
ꢀ
1)  
1)  
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Check the transmission’s cooling fins,  
Rider 13 and Rider 16  
-
ꢀ
Check the transmission’s oil level,  
Rider 13 and Rider 16  
44  
31  
26  
-
-
-
ꢀ
ꢀ
ꢀ
ꢀ
Adjust the brakes, Rider 13 and Rider 16  
Check and adjust the throttle wire  
Clean the cooling fins on the engine and transmission 2,4)  
Replace the air filter’s pre-filter and paper filter 2)  
ꢀ
ꢀ
ꢀ
Replace the fuel filter  
Replace the spark plug  
8
1) First change after 5 hours. Replace after every 25 hours with heavy loads and high temperatures. 2) Cleaning and replacing should be  
carried out more frequently in dusty conditions. 3) The machine should be lubricated twice a week if used daily. 4) Carried out by  
authorised service workshop.  
ꢀ = Described in this Workshop Manual.  
ꢀ = Not described in this Workshop Manual.  
ꢀ = Described in the Operating 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 cables are removed  
from the plugs.  
English – 9  
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Delivery measures  
Packaging and unpacking  
To our dealer  
On delivery from the factory the Rider is normally  
packed in special packaging. This consists of a  
wooden bottom board with a top part consisting of  
heavy-duty cardboard held together by plastic film.  
Well-performed delivery service is the first step to a  
functioning aftermarket. A functioning aftermarket is  
in everybody’s interest:  
• The customer is satisfied with their Rider. He/she  
knows where to go to get help if problems occur.  
WARNING!  
Handle the transport box  
carefully. Keep the goods as level  
as possible. Use long forks when  
lifting from the short side.  
• You have a regular customer, who recommends  
you and your company to other potential  
customers.  
• In this way we build our trademark together, and  
take joint responsibility for our products and  
customers.  
The bottom board is provided with pallet feet and  
the goods can be handled with a normal fork-lift  
truck from the long side. To keep the goods as level  
as possible, two men should help the truck driver.  
Lift the machine and drive the truck carefully.  
Make sure the paper work is in good order.  
Fill in the warranty and delivery documents etc. and  
make sure that the customer gets the right  
Operating Instructions for their machine.  
Undo the plastic film and lift off the cardboard  
sections. The Rider is placed on the bottom board,  
braked and secured with wooden blocks.  
Check that there is no transport damage after  
removing the packaging. Report any damage to the  
transport company in accordance with the standard  
routines.  
Keep a customer register so that in future you can  
see which machines customers have, including all  
the serial numbers. This register will benefit you  
when ordering spare parts and for future marketing.  
In conjunction with the delivery you should also  
give the customer the information required to  
ensure the safe handling and care of their machine.  
Pay special attention to informing the customer  
about:  
The packaging should not be returned.  
• Safety instructions.  
• Controls. Emphasise that one does not push in  
the reversing lock on Rider 11 when engaging  
the neutral position (start lock function).  
• Checking of oil levels. Replenishing of oil, and  
which type of oil is required.  
• First oil change after the running-in period.  
• The need for, and advantages of, following the  
service schedule and regularly handing in their  
Rider for service.  
Lifting from the short side requires long pallet forks,  
see diagram.  
• Which fuel should be used.  
• Mowing tips to get good results. Applications for  
BioClip.  
Parts enclosed in packaging, Rider  
The following parts are enclosed in the transport box:  
Number Part  
• Which accessories are available for the type of  
Rider in question.  
• Warranty regulations.  
1
Steering wheel with steering column tube  
Socket head cap screw steering column  
tube  
• Your company, and who the customer can turn to  
1
if problems occur.  
1
2
6
1
1
Lock nut steering column tube  
Support rollers (BioClip)  
Battery plugs  
Operating Instructions  
Operating and Maintenance  
Instructions Briggs & Stratton  
Wheels (certain markets)  
4
10– English  
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Delivery measures  
Battery  
WARNING!  
Measures for contact with acid  
External: Rinse thoroughly with water.  
Internal:  
Drink large quantities of water or  
milk. Contact a doctor as soon as  
possible.  
Eyes:  
Rinse thoroughly with water.  
Contact a doctor as soon asap.  
The battery gives off explosive gas. Sparks,  
naked flames and cigarettes must absolutely  
not be in the near vicinity of the battery.  
The battery is delivered dry-charged from the  
factory. The cells are fitted with sealing film. The  
battery plugs are packed in a plastic bag.  
• Fill the battery cells slowly with battery acid to  
the max. level mark on the battery container.  
• Wait 20 minutes and top up with battery acid if  
necessary.  
• Charge the battery with 12 V max. 6 A for 4  
hours.  
• Check the electrolyte level and top up if  
necessary with distilled water to the top level  
marks on the battery container.  
Put the battery in position.  
Connect the battery with the screws and nuts fitted  
on the battery. Brace the screws when fitting to  
avoid exposing the terminals to strain.  
• Black cable is connected to -.  
• Red cable is connected to +.  
Make sure the cables do not rub against the  
material.  
Fit the cover over the battery and tighten the strap.  
English – 11  
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Delivery measures  
Steering wheel  
• Fit the steering wheel with the steering column  
tube on the steering shaft.  
• Screw in the socket head cap screw so that it  
goes in the slot on the steering shaft. Work on  
the steering wheel and tighten the socket head  
cap screw so that it bottoms in the slot.  
• Fit the lock nut on the socket head cap screw.  
Tow plate  
The tow plate is fitted the “wrong way round” at the  
factory for transport reasons. Fit the tow plate on  
the rear bumper as shown in the diagram.  
Check the oil level in the engine  
Check the oil level in the engine when the Rider  
stands horizontal with the engine switched off.  
Lift up the engine cover.  
Loosen the dipstick and pull it out. Wipe the  
dipstick and replace it.  
The dipstick should be screwed fully down.  
Loosen the dipstick and pull it out again. Check the  
oil level.  
The oil level should lie between the markings on  
the dipstick. If the level is close to the “ADD” mark,  
top up with oil to the “FULL” mark on the dipstick.  
The oil is poured in the same hole the dipstick fits  
in.  
Fill the oil slowly. Tighten the dipstick correctly  
before starting the engine. Start and run the engine  
at idling speed for approx. 30 seconds. Turn off the  
engine. Wait 30 seconds and check oil level. If  
necessary fill so that the oil comes up to the  
”FULL” mark on the dipstick.  
Rider 16, 2003 model  
ADD  
FULL  
Use engine oil SAE 30 or SAE 10W/30, class SF-  
CC on all machines up to 2002 models as well as  
later models of Rider 11 and 13 with side-valve  
engines.  
From 2003 Rider 16 models use first and foremost  
synthetic engine oil class SJ-CF 5W/30 or 10W/30,  
otherwise SAE30, class SF-CC.  
ADD  
FULL  
The engine takes a total of 1.4 litres/1,5 USqt of oil.  
12– English  
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Delivery measures  
Checking the oil level in the  
transmission  
(Not Rider 11)  
Remove the transmission cover. Loosen both  
screws (one on each side) and lift off the  
transmission cover.  
Check that there is oil in the transmission’s oil tank.  
Fill if necessary with engine oil SAE 10W/30 (class  
SF–CC).  
IMPORTANT INFORMATION  
Check and top up with oil after each test  
drive. The oil level will drop if there are  
air pockets in the transmission.  
Wheels  
Fit the wheels (certain markets). The tyre pressures  
should be 60 kPa (0,6 kp/cm2 /8,5 PSI) on all the  
wheels.  
To improve the driving capacity the pressure in the  
back tyres can be reduced to 40 kPa  
(0,4 kp/cm2 /5,6 PSI).  
Maximum permitted pressure is 100 kPa  
(1,0 kp/cm2 /14 PSI).  
IMPORTANT INFORMATION  
Different pressures in the front tyres will  
cause the blades to cut the grass at  
different heights.  
Checking and adjusting of the mowing  
deck’s ground pressure and parallelism  
Carried out after checking the tyre pressures. See  
respective sections in this Workshop Manual.  
English – 13  
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Delivery measures  
Test running  
Fill up with petrol. The engine should be run on the  
lowest 85 octane unleaded petrol (no oil admixture).  
It can be beneficial to use environmentally adapted  
alkylate petrol. Do not use petrol that contains  
methanol.  
WARNING!  
Petrol is highly inflammable.  
Observe caution and fill up with  
petrol outdoors.  
WARNING!  
Never run the engine indoors, or  
in enclosed or poorly ventilated  
areas. Engine exhaust fumes  
contain poisonous carbon mon-  
oxide.  
Start the engine.  
Check that the machine is in neutral and standing  
on level ground when the parking brake is released.  
(Not Rider 11)  
Check the function of the parking brake.  
Check driving forwards (1) and backwards (2).  
Check that the starter does not function when any  
of the hydrostatic transmission pedals are activated  
(Rider 13, 16) or when the gear stick is not in  
neutral (Rider 11).  
1
2
Check that the engine stops when getting up from  
the seat when any of the hydrostatic transmission  
pedals are activated (Rider 13, 16) or when the  
gear stick is not in neutral (Rider 11).  
Check that the starter does not function when the  
mowing unit is in its lower position.  
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Delivery measures  
Check the function of the mowing deck and that  
there is no abnormal noise.  
The mowing height can be regulated in 9 different  
positions with the lever.  
Deck with rear ejector,  
40-90 mm,  
mowing height  
(1 9/16" - 3 9/16")  
45-95 mm,  
BioClip- and Combi- deck,  
mowing height  
(1 3/4" - 3 3/4")  
Speed regulator  
Check that the engine’s maximum speed is  
regulated at:  
Rider 11  
Rider 13  
Rider 16  
Rider 16 2003 -  
2 900 - 3 100 rpm  
2 900 - 3 100 rpm  
2 900 - 3 100 rpm  
2 800 - 3 000 rpm  
Administration  
Fill in the sales certificate and customer register  
etc.  
Do not forget to enter the manufacturing number on  
page 3 of the operator’s manual and to verify the  
delivery service in the service log.  
English – 15  
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Design and function  
General  
and for best possible cutting results.  
Husqvarna Riders is a series of ride-on mowers  
with a large capacity. It is available in several sizes,  
from the smallest Rider 11 to the largest Rider  
ProFlex 21.  
Husqvarna Riders can, moreover, be equipped  
with various accessories such as moss rake and  
dozer blade which make them flexible working  
tools throughout the year.  
This manual deals with the slightly smaller  
Rider 11 and Rider 11 Bio can be delivered with a  
manual gearbox, while the other models are only  
available with hydrostatic transmission.  
machines, the larger Pro-and ProFlex machines  
can be found in a separate manual. All Riders have  
articulated steering in order to easily cut around  
trees and other obstacles. Moreover, they all have  
front-mounted mowing decks for controlled cutting  
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Rider 11 and Rider 13 have a mowing deck with  
rear ejection. They can also be ordered with a Bio  
deck, in which case they are called the Rider 11 Bio  
or Rider 13 Bio.  
Rider 16 is available with different mowing decks.  
Bak 97 (rear ejection)  
Sido 97 (side ejection)  
BioClip 90  
Combi 103 or Combi 112.  
Earlier versions even BioClip 103 or BioClip 112  
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Design and function  
Serial number  
The serial number can be found on the printed  
plate attached to the front, left-hand side under the  
seat. Stated on the plate, from the top are:  
•
•
•
The machines type designation.  
The manufacturer’s type number.  
The machine’s serial number.  
State the type designation and serial number when  
ordering spare parts.  
On older machines the engine’s manufacturing  
number is punched on a plate that is riveted to the  
fan cover. On newer engines in Rider 16 the data is  
punched on the cover.  
The plate states:  
•
•
•
Model.  
Type.  
Code.  
Please state these when ordering spare parts.  
Older engines all versions  
Newer engines Rider 16 (2003-)  
The transmission’s serial number is stated on the  
barcode decal located on the front of the housing  
on the left-hand drive axle:  
• The type designation is stated above the  
barcode and starts with the letter “K”.  
• The serial number is stated above the barcode  
and has the prefix “s/n”.  
• The manufacturer’s type number is stated under  
the barcode and has the prefix “p/n”.  
State the type designation and serial number when  
ordering spare parts.  
English – 17  
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Design and function  
Engine  
The order numbers for the respective Rider models  
are found in the table below. Please state these  
when ordering manuals:  
These Husqvarna Riders have single-cylinder, air-  
cooled engines from Briggs & Stratton.  
More intricate engine repairs are not described in  
this workshop handbook, these can instead be  
read in Briggs & Stratton's own handbooks which  
contain detailed information about adjusting and  
repairing the engines. The handbooks can be  
ordered from an authorized service workshop.  
Model  
Rider 11  
B & S model no.  
28B707  
Rider 13  
286707  
Rider 16 -2002  
Rider 16 2003-  
28N707  
282H070110  
Rider 11 and Rider 13 are fitted with a single  
cylinder side-valve engine of 10.5 resp. 12.5 hp  
with splash lubrication. Rider 16 is fitted with a  
single cylinder overhead-valve engine of 15.5 hp. A  
new overhead-valve engine with AVS (Anti Vibra-  
tion System) has been introduced from 2003  
models.  
It is important that only original spare parts are  
used when repairing the engines. If other parts are  
used, the guarantee shall no longer be valid.  
Side-valve engine Rider 11 and 13  
Overhead-valve engine Rider 16 (2003-)  
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Design and function  
Steering  
Thanks to the articulated steering, the turning  
All the ride-on mowers in the Rider series have  
articulated steering. The steering force from the  
steering wheel is transferred to the rear section via  
wires and a chain. This ensures that the ride-on  
mower is easy to manoeuvre, as well as having  
high-precision steering. A Rider easily cuts around  
all obstacles that may be found on the lawn.  
radius is extremely small, the uncut circle when the  
steering wheel is fully turned is just 20-30 cm  
(8"-12")depending on which model is chosen.  
Outline diagram of the articulated steering function.  
Rider machines have a sliding bearing (1) on the  
steering column.  
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Design and function  
Driving  
Rider 13 and Rider 16 are equipped with  
hydrostatic transmission which provides the driver  
complete control. Continuously variable speed  
control, forwards and reverse, is by means of a  
pedal.  
Rider 11 has a manual gear box with five forward  
gears, neutral and one reverse gear. This gear box  
is an "inline" type, which means that you can  
change from neutral to fifth gear without having to  
go through all the other gears.  
Hydrostatic transmission on Rider 13 and Rider 16.  
Manual gear box on Rider 11 and Rider 11 Bio.  
Mowing deck  
Rider 16 can be fitted with mowing decks with  
either side or rear ejection where both have mowing  
widths of 970 mm (38"), BioClip unit with mowing  
width 900 mm (36") alternatively 1030 mm (41") or  
Combi unit 1030 mm (41") alternatively 1120 mm  
(44").  
The entire Rider series is equipped with front-  
mounted mowing decks to ensure effective cutting  
even in confined areas.  
Rider 11 and Rider 13 have a mowing deck with  
rear ejection and a cutting width of 850 mm (34").  
The Combi unit works as a BioClip unit when a  
BioClip plug is fitted, but can be modified for rear  
ejection by removing the BioClip plug.  
Rider 11 Bio and Rider 13 Bio have a Bio deck with  
a cutting width of 900 mm (36").  
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Design and function  
Mowing deck with rear ejection, 850 mm (34").  
Removing the BioClip plug  
BioClip 900 mm (36")  
Mowing deck with side ejection, 970 mm (38").  
BioClip 1030 mm (41")  
Mowing deck with rear ejection, 970 mm (38").  
90  
°
90°  
Combi 1030 mm (41").  
Combi 1120 mm (44").  
English – 21  
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Design and function  
The mowing deck is raised and lowered using the  
mechanical lifting lever, which actuates a shaft that  
rotates.  
When the shaft rotates, the chain that is secured in  
an arm on the inner end of the shaft raises or  
lowers the tool frame.  
When lowering the unit, the two connecting rods,  
via the three-point link, will alter the belt adjuster so  
that the drive belt is tensioned and the blades begin  
to rotate.  
When the attachment is raised the microswitch in  
the safety circuit is actuated.  
The attachment’s lifting device  
The mowing deck is rear suspended with the lug on  
the rear transverse axle in a U-bracket on the tool  
frame. The front of the tool frame is linked to a  
bracket on the attachment. The front rollers are  
supported against the ground, for example, when  
turning when the attachment tends to lean. The  
rollers on the rear section of the protective frame  
are used when removing and fitting the mowing  
deck or moving it to the service position.  
toggle joint actuate the protective frame around the  
mowing deck and raise or lower the mowing deck’s  
cover within the mowing height range.  
There are two struts on the top of the cutting unit  
cover. The upper one is coupled between the  
horizontal connecting rod and the tongue of the  
forward perpendicular shaft on the top of the  
mowing deck cover. When the shaft is rotated, it will  
raise or lower the cutting unit cover in relation to the  
protective frame. The lower strut (parallel strut) is  
connected between the front and rear transverse  
axles, so that even the rear axle rotates in the same  
way as the front axle. There is an adjuster on the  
parallel strut to adjust the mowing deck cover’s  
parallelism with the ground. See ”Checking and  
adjusting the mowing deck’s the parallelism”.  
Otherwise, when dismantling, the rear of the  
attachment would fall directly to the ground when  
the lug on the rear axle releases its grip.  
The mowing height is adjusted using the lever,  
which has a catch for the different mowing height  
positions. The setting for the mowing height range  
is located on the same axle, see ”Adjustment of the  
mowing height range”. Two connecting rods via a  
Mowing height manoeuvring  
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Reparation instructions  
3
Removing engine  
The figures under ”Dismantling” show Rider 11, 13  
and Rider 16 in older designs (R16 up to the 2002  
model), for a more recent Rider 16 design (2003-)  
see ”Assembling the engine”. The text applies to all  
versions.  
1
Mark up and remove the engine's electrical  
connections.  
Newer engines, pull the connector apart.  
4
IMPORTANT INFORMATION  
Hold the bolts so that the poles are not  
put under strain.  
Remove the battery's fixing belt. Remove the safety  
guard and remove the cable connections. Then, lift  
out the battery.  
2
Remove the clamp holding the throttle and choke  
wire. Unhook the wire at its at its attachment.  
Remove the cable which leads from the starter  
relay to the start motor.  
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Reparation instructions  
5
8
Remove the fuel line hose clamp from the fuel  
pump and pull the fuel line downwards.  
Tie the hose higher than the fuel tank level.  
Insert tool no. 506 79 06-01 into the centre of the  
engine pulley. Unscrew and remove the socket  
head cap screw which holds the pulley and the  
engine axle together. Use tool no. 506 89 92-01 as  
a holder-on. Remove the pulley from the engine  
axle.  
6
9
Release the exhaust pipe clamps, and then remove  
the exhaust pipe.  
7
Remove the engine attachments, two on each side  
of the engine, and remove the engine from the  
mower.  
Watch where the battery’s negative cable is  
connected. Disconnect it from the engine if  
necessary.  
Lift the engine out of the mower, take care of the  
key and spacer tube, located on the engine shaft.  
Clamp together the wire holder under the engine  
pulley with a pair of flat pliers and pull the wire  
holder downwards.  
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Reparation instructions  
2
Replacing engine  
The figures under ”Assembling” show the newer  
Rider 16 model (2003-). For  
older designs (R16 up to the 2002 model), and  
Rider 11 and 13 see ”Dismantling  
the engine”. The text applies to all versions.  
Position the pulley with tool no. 506 79 06-01 and  
tighten it with moment (70-80 Nm/50-56 lbft). Use  
tool no. 506 89 92-01 as a holder-on.  
3
IMPORTANT INFORMATION  
When installing the engine, it is important  
that the pulley groove (1) is in a position  
so the outgoing axle key (2) fits into the  
groove (see diagram). Also check that  
both spacing collars (3) and the key (2)  
are firmly attached on the engine axle.  
Grease the engine axle.  
Position the wires in the wire holder, clamp the  
holder together and, from below, lead it up through  
the centre of the belt tensioner until it hooks over  
the tensioner's upper edge.  
1
4
Lower the engine and tighten the engine  
attachments (two on each side of the engine) with  
moment (20-25 Nm/14-18 lbft).  
Hook on the throttle wire at the carburettor and fit  
the wire clamp without tightening it.  
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Reparation instructions  
7
5
Push the throttle control to full choke position. Pull  
the wire’s outer casing as far to the right as  
possible and tighten the clamping screw. Pull back  
the throttle control to the full throttle position and  
check that the choke is no longer actuated.  
Press the fuel line securely on the fuel pump and fit  
the hose clamp.  
8
Choke not actuated.  
6
Attach the engine's electrical connections.  
Fit the exhaust pipe and tighten the retaining  
screws and clamps.  
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Reparation instructions  
9
Fuel tank  
Removal  
WARNING!  
Petrol is highly flammable and  
environmentally hazardous.  
Exercise caution to avoid fire and  
spillage.  
1. Place an appropriate container to catch the  
petrol. The tank holds approx. 7 litres / 7.4  
USqt.  
2. Empty the petrol tank by removing the hose  
from the connector under the tank.  
Tightly screw the cable from the start motor to the  
starter relay.  
If you do not wish to empty the tank, you can  
pinch the hose with lockable welding pliers and  
then remove the hose and hose clamp from the  
fuel filter’s lower connector. You must then be  
sure to keep the hose opening higher than the  
fuel level in the tank.  
10  
3. Remove the three screws that fix the tank to the  
bracket. Lower the tank and pull out the hose  
through the frame of the machine (if it has been  
loosened by the fuel filter).  
Lift the battery into place and fasten the cable  
connections and safety guard. Tighten the catching  
belt.  
Fitting  
1. It is easier to work if you empty the tank before  
fitting. Pull the tube into place, pull it under the  
corner of the crank house, and attach it to the  
fuel filter with the hose clamp. Make sure that  
the hose cannot be chafed or rubbed.  
2. Position the tank in the bracket, and secure with  
the bolts.  
3. Fit the fuel hose and the hose clamp to the  
connector under the tank as required. Fill with  
petrol and check that there are no leaks.  
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Reparation instructions  
Changing the oil  
Checking and adjusting steering wires  
The engine oil should be replaced after the first five  
hours of running time, see service chart. Thereafter  
it should be replaced every 50 hours of running  
time (25 hours in harsh operating conditions).  
1
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.  
Remove the frame plate by releasing the screws  
(two on either side).  
IMPORTANT INFORMATION  
Spent engine oil is hazardous to health  
and must not be poured out on the gro-  
und or in the nature, but should be  
handed in to a designated place for  
recycling.  
2
Avoid skin contact and wash any spillage  
with soap and water.  
Ensure that the cables are properly situated under  
the steering cable pulleys in the frame tunnel.  
The tension is checked by squeezing together the  
wires (as shown in the diagram). Without having to  
apply too much force, the wires should be able to  
be squeezed to half the distance between them.  
Change the cable if it has a damaged strand  
causing loose threads to protrude.  
Drain plug on Rider 16  
3
Tip! When draining the engine oil use a folded  
piece of cardboard to funnel the oil into the contai-  
ner.  
Place a container under the drain plug on the left  
side of the engine.  
Remove the dipstick and drain plug. Let the oil  
drain into the container.  
Refit the drain plug and tighten it.  
Fill with oil up to the “FULL” mark on the dipstick.  
Pour the oil into the same hole the dipstick goes in.  
Filling procedure, see ”Delivery measures\Checking  
the engine’s oil level”. Use engine oil as set out in  
the ”Specifications” chapter.  
Hold the wire so it does not twist.  
Stretch the wires by tightening the adjuster nuts  
(one wire on each side of the ride-on mower). Do  
not overtension them, they should only be tighte-  
ned up to the steering rim. Stretch both wires  
equally so that the steering wheel position is not  
changed.  
Run the engine until warm, then check that there  
are no oil leaks from the drain plug.  
Check the wire tension as set out in point 2 after  
you have made the adjustment.  
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Reparation instructions  
Replacing steering wires  
Removal/installation of steering axle  
1. Release the steering wires' rear attachment (1).  
1. Release the steering wires' rear attachment (1).  
Remove the frame plate.  
2. Remove the frame plate.  
2. Remove the steering wheel and steering  
column by releasing the lock nut and  
3. Release the steering wires' front attachment (2)  
at the steering transmission chain (6) and pull  
the steering wires out throught the frame.  
unscrewing the locking screw, lift the steering  
wheel and steering column upwards.  
Note. If the old wires are still complete, the new  
wires can be attached to the old ones when  
they are pulled out through the frame, the new  
wires will then come automatically into place.  
3. Remove the two steering wheel rod carriers (4).  
4. Unscrew the bolt (5) from the bottom end of the  
steering column.  
4. Ensure that the steering wheel is in the centre  
position when the rear wheels are centred. Re-  
set the chain on the steering column’s sprocket  
or adjust the rear fixture (1) for the steering  
cables as needed.  
5. Pull the steering axle (6) upwards and move the  
lower part of the axle backwards to remove the  
steering transmission chain (3).  
6. Move the upper bearing (7) uppwards until it  
goes free from the steering axle (6). If the  
bearing is to be replaced, the bushing (8) must  
be knocked out of the bearing.  
Hold the cables with, for example, a wrench  
when mounting so that they do not twist.  
Attach the new wires. Once the new wires are  
in place, check the wire tension (see “Checking  
and adjusting steering wires”).  
7. Slide the bearing (9) off the bottom end.  
8. Take the steering axle out (6) downwards.  
9. To assemble the steering axle, the reverse  
order is applied. For assembly purposes, the  
two steering wheel rod carriers (4), are tighte-  
ned with moment (5–10 Nm/3,5-7 lbft).  
English – 29  
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Reparation instructions  
Removal/installation of wire wheel  
1. Remove the frame plate.  
2. Detach the steering wires' rear attachment (1) .  
3. Remove the screw (2) and detach the wire  
wheel (5).  
4. Remove the bearing's circlip (3) and knock out  
the bearing (4).  
5. To install the wire wheel, the reverse order is  
applied.  
The screw (2) is to be mounted in the rear hole  
on the frame. The bushing (6) is to be placed  
between the frame and the cable pulley.  
Ensure that the cables are properly situated  
under the steering cable rollers (7) in the frame  
tunnel.  
Ensure that the steering wheel is in the centre  
position when the rear wheels are centred. Re-  
set the chain on the steering column’s sprocket  
or adjust the rear fixture (1) for the steering  
cables as needed.  
Hold the cables with, for example, a wrench  
when mounting so that they do not twist.  
After installation, check the wire tension (see  
“Checking and adjusting steering wires”).  
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Reparation instructions  
Rider 13 and Rider 16  
Checking and adjusting brake wire  
Check that the brake is correctly adjusted by  
positioning the ride-on mower on a gentle slope and  
applying the brake.  
Rider 11  
If the ride-on mower does not stand still, the brake  
needs to be adjusted.  
The brake is adjusted in the following way:  
Check that the brake is correctly adjusted by  
measuring the distance between the brake lever  
and the front edge of the recess on the chassis.  
The distance should be 0–1 mm/0-0,040" when the  
brake is not applied.  
1. Release the lock nuts (1).  
2. Stretch the wire with the adjuster screw (2) until  
all the play in the wire disappears.  
3. Tighten the lock nuts (1) and finally check that  
the brake is correctly adjusted.  
WARNING!  
A badly adjusted brake can lead  
to reduced braking capacity.  
1. Remove the lock nuts (1).  
2. Stretch the wire with the adjuster screw (2) so  
that the distance between the brake lever and  
the front edge of the recess on the chassis is 1  
mm/0,040".  
3. Tighten the lock nuts (1) after adjustment.  
When the brake wire has been adjusted, check  
that the brake lever does not have too much  
movement. If the lever's free movement  
exceeds 9 mm/3/8", this should be adjusted by  
tightening the nut on the brake lever.  
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Reparation instructions  
Checking and adjusting gear control  
Rider 11  
Checking and adjusting freewheel  
clutch Rider 11  
1
The freewheel clutch is correctly adjusted when the  
tensioning wheel's outward movement is stopped  
by the belt and not by the wire.  
Check the gear control adjustment by setting the  
gear change lever to the ”N” position. When the  
lever (4) goes easily into the neutral position, the  
control is correctly adjusted.  
2
In other cases, the control is adjusted in the  
following way:  
1
Detach the lock nut (1) on the ball joint.  
2
Press the locking spring (2) backwards so that the  
spherical socket (3) can be lifted away from the pivot  
on the lever (4).  
3
Adjust the spherical socket (3) position on the  
connecting rod (5) until the right adjustment is  
obtained.  
There should be a play (A) of 8-10 mm/5/16" - 3/8"  
between the wire nipple and the lever.  
4
Lock the setting with the lock nut (1) and press the  
locking spring (2) into position.  
3
IMPORTANT INFORMATION  
Check that the locking spring goes  
through the hole in the spherical socket.  
Adjust the freewheel clutch wire as follows:  
• Pull out the rubber sleeve (1). Loosen the nut (2)  
and adjust the wire using the adjuster screw (3).  
• Tighten the lock nut (2) after adjustment.  
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Reparation instructions  
Checking and adjusting throttle control  
Replacing articulated steering bearing  
1
Rider 13 and Rider 16  
• Remove the engine according to the earlier  
description (see “Removing engine”).  
• Block up the ride-on mower in front of the  
articulated steering.  
1. Detach the locking nut (1) on the ball joint.  
2 Rider 11  
2. Push the lock spring (2) forwards far enough  
for the spherical socket (3) to be lifted off from  
the pivot on the lever (4).  
3. Press the throttle pedal to the bottom and  
move the lever (4) forwards as far as it goes  
using a screwdriver.  
4. Adjust the position of the spherical socket (3)  
on the connecting rod (5) so that it just fits over  
the pivot on the lever. Fit the spherical socket  
on the pivot.  
• Release the tensioning wheel spring (1).  
5. Lock the setting with the lock nut (1) and press  
the locking spring (2) into position.  
• Release the clutch, gear and brake wire (2, 3  
and 4) and remove the wires' holder plates (5  
and 6).  
IMPORTANT INFORMATION  
Check that the locking spring goes  
through the hole in the spherical socket.  
2 Rider 13 and Rider 16  
2
5
3
1
• Release the tensioning wheel spring (1).  
4
• Release the hydrostatic transmission wire (2)  
from the arm (3) and the casing from the holder  
(4).  
• Release the cable from the neutral position  
contact (5).  
• Release the brake wire from the arm under the  
tank and the casing’s holder from the rear frame  
(6).  
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Reparation instructions  
3
5
• Work off the belts from the pulley (2).  
Remove the inner circlip (1) from the lower bearing  
(see diagram). The rear section is now loose and  
can be moved. Then detach the outer circlip (2) and  
take the bearing out downwards.  
• Loosen the steering wires (1) and remove the  
steering rim.  
• Remove the pulley (2). Move the lower part  
forwards, the upper part backwards and detach  
the pulley.  
6
4
WARNING!  
The articulation spring is  
strongly tensioned and can  
cause injury if it flies off. Wear  
safety glasses and gloves when  
removing/attaching the spring.  
• Take the upper bearing out upwards, if it does  
not come out easily, it should be knocked out  
from below.  
• Insert the new bearings and assemble the  
articulated steering in the reverse removal order.  
• After re-assembly, the wire tension should be  
checked (see “Checking and adjusting steering  
wires”). Also check that the controls and wires  
are correctly adjusted.  
Detach the articulation spring. This spring is  
heavily tensioned and should be offloaded using  
tool 506 89 93-01 before the bolt for the rear  
bracket is removed.  
• Check the setting of the neutral position switch  
on machines with hydrostatic transmission, see  
”Electrical system\Microswitch neutral position”.  
34– English  
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Reparation instructions  
• Release the tensioning wheel spring (1).  
Removal of swing axle  
• Release the hydrostatic transmission wire (2)  
from the arm (3) and the casing from the holder  
(4).  
1
• Release the cable from the neutral position  
contact (5).  
• Release the brake wire from the arm under the  
tank and the casing’s holder from the rear frame  
(6).  
• Remove the circlip and lift off the hydrostatic  
transmission’s fan (7).  
• Remove the rear belt (8).  
• Remove the circlip and washer from the swing  
axle and pull the rear frame backwards.  
3
• Block-up the machine in front of the rear frame.  
• Remove the transmission/gear box cover.  
2 Rider 11  
Remove the circlip and washer from the swing  
axle's inner holder (1) and pull the swing axle out  
backwards. Use a sledgehammer or puller if  
needed.  
If the dust protection (2) is damaged, this should be  
replaced by a new one.  
• Detach the tensioning wheel spring (1) and the  
clutch wire (2).  
Replacing bushings  
• Disconnect the tensioning wheel arm (3) from  
the rear frame, and detach the belt from the gear  
box pulley.  
Once the swing axle has been removed the  
bushings fitted to the rear frame must be replaced.  
Dismantling is carried out using a standard drift,  
see ”Special tools”.  
• Detach the gear and brake wires (4 and 5) and  
remove the wires' holding plates (6).  
Assembling new bushings is carried out using a  
drift, see ”Special tools”. Ensure the grooves in the  
bushings run horizontally. It is important that the  
outer edge of the outermost bushing is flush with  
the outer edge of the hole.  
• Remove the circlip and washer from the swing  
axlel (7) and pull the rear frame out backwards.  
2 Rider 13 and 16  
Lubricate the bushings with a lithium-based grease.  
English – 35  
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Reparation instructions  
Installation of swing axle  
3 Rider 11  
1
• Attach a washer and circlip onto the swing axle  
(1).  
• Firmly secure the wires' holder plates (2), as well  
as the gear and brake wires (3 and 4).  
• Grease half of the axle (the half that has not  
been turned down) and press it from the back  
into the steering spindle (see diagram).  
• Connect the belt onto the pulley and tightly screw  
the tensioning wheel arm (5) onto the rear frame.  
• Attach the clutch wire (6) and the tensioning  
• Attach the washer and circlip on the swing axle's  
wheel spring (7).  
inner holder.  
• Fix the dust guard (with a thin lip behind) approx.  
2/3 of the way in on the axle and lubricate the  
axle on both sides of the dust guard.  
3 Rider 13 and 16  
2
• Fit the washer and circlip on the swing axle.  
• Fit the hydrostatic transmission wire and its  
casing (2+4).  
• Fit the cable on the neutral position contact (5).  
• Fit the rear belt (8).  
• Fit the brake wire on the arm under the tank and  
the casing’s holder on the rear frame (6).  
Roll the rear frame forwards and press it in on the  
swing axle.  
• Fit the tensioning wheel spring (1).  
• Fit the hydrostatic transmission’s fan and the  
circlip (7).  
4 . Check that wires and controls are correctly  
adjusted (see Inspection and adjusting of  
respective wires). Finally, fit the cover on the  
transmission/gearbox.  
Check the setting of the neutral position switch  
on machines with hydrostatic transmission, see  
”Electrical system\Microswitch neutral position”.  
36– English  
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Reparation instructions  
Removing/installation of hydrostatic  
transmission Rider 13 H/13 H Bio and  
Rider 16 H  
Removal/installation of gear box  
Rider 11  
1
1
• Block-up the machine in front of the rear frame  
and remove the back wheels.  
• Block-up the machine in front of the rear frame  
and dismantle the rear wheels.  
• Remove the transmission cover.  
• Remove the cover from over the gear box.  
2
2
• Release the tensioning wheel spring (1).  
• Unfasten the clutch wire (2), and detach the belt  
from the gear box pulley.  
• Release the tensioning wheel spring (1).  
• Remove the fan (2), it is held by a circlip.  
• Work off the drive belt (3).  
• Detach the gear and brake wires (3 and 4).  
• Insert a garage jack under the gear box and  
unscrew the gear box's five holder screws (5).  
• Remove the oil tank (4).  
• Release the brake wire spring and remove the  
brake wire from the brake lever (concealed under  
the oil tank).  
3
• Release the hydrostatic transmission link (5) in  
• Lower the garage jack and pull out the gear box.  
the front ball joint.  
• Installation of the gear box is carried out in the  
• Remove the screw (6) holding the arm.  
reverse removing gear box order  
• Remove the freewheel clutch control (7) with its  
• After installation, check that the clutch, brake  
and gear wires are correctly adjusted (see  
“Checking and adjusting brake wire”, “Checking  
and adjusting gear control” and “Checking and  
adjusting freewheel clutch”).  
spring.  
English – 37  
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Reparation instructions  
3
Replacing hydrostatic transmission axle  
sealing collars  
Sealing collar replacement - input axle  
Remove the cooling fan, it is held by a circlip. Rem-  
ove the pulley from the input axle by pulling it  
upwards and then removing the circlip under the  
pulley.  
IMPORTANT INFORMATION  
The area around the sealing collar must be  
absolutely clean! If the hydrostatic oil is  
contaminated with dirt, this can lead to a  
shorter hydrostatic transmission  
operational life.  
Insert a garage jack under the hydrostatic trans-  
mission and loosen its five holder screws.  
1
4
• Lower the garage jack and pull out the  
hydrostatic transmission.  
• Installation of the hydrostatic transmission is  
carried out in the reverse hydrostatic transmis-  
sion removing order  
• Clean the input axle and the area around the  
sealing collar of all dirt and rust.  
• Insert a screwdriver between the sealing collar and  
the axle and bend the sealing collar out of the axle  
housing with a twisting motion.  
• After fitting the brake wire and hydrostatic  
transmission wires, check that they are  
correctly adjusted (see “Inspection and  
adjustment of brake wire” and “Inspection and  
adjustment of speed control”). Check also the  
oil level in the hydrostatic transmission, and top  
up if necessary. Check the setting of the  
neutral position switch on machines with  
hydrostatic transmission, see ”Electrical  
system\Microswitch neutral position”.  
2
• Wrap insulation tape around the input axle to  
protect the new sealing collar from damage to  
splines and grooves.  
Start by wrapping from the bottom and continue  
upwards over the axle until the entire axle is  
wrapped in tape.  
• Lubricate the axle and the inside of the new  
sealing collar with grease so that the collar can  
slide easily.  
38– English  
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Reparation instructions  
3
• Clean the outgoing axle and the area around the  
• Place the sealing collar on the axle with the  
smooth side upwards, and carefully press it  
downwards.  
sealing collar of all dirt and rust.  
• Insert a screwdriver between the sealing collar  
and the axle and bend the sealing collar out of  
the axle housing with a twisting motion.  
• Use the thick end of a 1/4" extender to carefully  
knock down the sealing collar until the upside of  
the collar is level with the axle housing's upper  
edge.  
Move the extender in a circle around the sealing  
collar so that it is evenly pressed down, all the  
way around.  
2
• Remove the insulation tape from the axle and  
assemble the lower circlip and the pulley with the  
hexagonal hub facing upwards.  
• Fasten the fan and the washer and assemble the  
upper circlip.  
• Install the hydrostatic transmission in the ride-on  
mower as indicated in the previous description  
(see “Removal/installation of hydrostatic trans-  
mission”).  
Sealing collar replacement - outgoing axles  
1
• Wrap insulation tape around the outgoing axle  
from the start of the key-way and outwards until  
even the circlip's groove is covered with tape.  
This is done to protect the new sealing collar  
from damage.  
Remove the rear wheels. Remove the circlips and  
pull the wheels outwards. Do not mislay the key  
that sits between the hub and axle. Use removing  
tool 506 57 00-01 if necessary.  
• Lubricate the axle and the inside of the new  
sealing collar with grease so that the collar can  
slide easily.  
Remove the spacing sleeve and washer from the  
wheel axle.  
IMPORTANT INFORMATION  
IMPORTANT INFORMATION  
Before the sealing collar is completely  
installed, check that the sealing collar's  
metal spring reinforcement sits on the  
side of the sealing collar which leads  
inwards towards the transmission.  
Dirt must not be allowed to get into the  
transmission as this can shorten its  
operational life.  
English – 39  
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Reparation instructions  
3
Replacing hydrostatic transmission wire  
Removal of hydrostatic transmission wire  
1
• Place the sealing collar on the axle, with the  
metal spring inwards, and press it in carefully.  
• Use the narrow end of a 1/4" extender to  
carefully knock in the sealing collar until it  
reaches the bottom of the axle housing. Only  
knock on the steel cover.  
Move the extender in a circle around the sealing  
collar so that it is pressed in evenly all the way  
around and tight against the axle.  
Remove the frame plate by undoing the screws  
(two on each side).  
• Remove the insulation tape from the axle and  
repeat, as is necessary, the entire procedure for  
the second axle.  
2
• Replace the washer, spacing sleeve, key and  
rear wheel on the axle. Fit the circlip that holds  
the wheel and the plastic cover over the axle  
end.  
Loosen the hydrostatic transmission’s front lock nut  
a 1/4 turn and remove the lock spring.  
• Fill the transmission's oil container with SAE  
10W30 oil until the oil level reaches the "MAX"-  
marking.  
3
• Bleed the transmission as directed in “Bleeding  
of the hydrostatic transmission’s oil system”.  
• Operate the ride-on mower and then check that  
there is no oil leaking from the new axle sealing  
collars.  
• Check the oil level and top up if necessary after  
test running.  
Remove the hydrostatic transmission wire’s front  
clamp fixed inside the middle bracket.  
40– English  
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Reparation instructions  
7. Lift off the linkage and pull out the wire.  
4. Remove the transmission cover.  
5
8
Follow the hydrostatic transmission wire backwards  
towards the transmission and cut off the cable ties  
round the wire.  
Lift out the transmission wire with the linkage  
attached.  
9
6
Remove the lock spring at the transmission wire’s  
rear linkage. Release the clamp holding the wire’s  
casing.  
Unscrew both ball joints from the hydrostatic  
transmission wire.  
10  
Remove the entire hydrostatic transmission wire.  
English – 41  
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Reparation instructions  
Refitting hydrostatic transmission wire  
1
3
Press the wire casing in the front holder in the  
middle bracket.  
4
Screw the front ball joint onto the new transmission  
wire and tighten the lock nut.  
2
Screw tight the hydrostatic transmission wire’s  
clamp. Press the linkage in its holder and fit the  
lock spring.  
5
Run the wire through the mower so that it follows  
the same route as the old wire.  
Screw tight the linkage on the lower part of the  
transmission wire. Screw 10-12 turns so that the  
linkage has the correct length.  
42– English  
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Reparation instructions  
6
10  
~80  
Draw the transmission wire along with the other  
cabling. Place the wire at the bottom in the clamp,  
under the articulated steering’s bearing.  
Fix the hydrostatic transmission wire with a cable  
ties.  
7
11  
Put the wire in position and screw tight the casing  
with the rear clamp.  
8. Adjust the wire as directed in “Inspection and  
adjustment of speed regulator”. Connect the  
rear linkage and fit the lock spring. Tighten the  
rear lock nut for the linkage.  
Refit the frame plate using the four screws.  
9. Check the setting of the neutral position contact.  
See ”Electrical system\Microswitch neutral  
position”.  
English – 43  
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Reparation instructions  
Bleeding the hydrostatic transmission  
oil system  
Adjustment of transmission neutral  
position  
1. Bleed the hydrostatic transmission oil system.  
1
2. Lift the back of the ride-on mower up so that the  
wheels are off the ground and place blocks  
under the machine.  
3
• Check the hydrostatic transmission oil level.  
• Start the engine and set the throttle control to  
idle.  
2
• The neutral position is adjusted by turning the  
hexagonal axle on the transmission (see dia-  
gram).  
• Start the engine and set the throttle control to full  
throttle.  
• Unscrew the hexagonal axle lock nut and turn  
the axle clockwise until the drive shafts start to  
rotate backwards.  
• Make a mark on the top of the axle.  
• Repeat opening and closing the disengaged  
clutch control whilst the front respective rear  
pedals are alternately pressed down.  
• When the mower starts to move set the governor  
control lever to high idle.  
3. Repeat quick starts and emergency stops until  
the transmission responds as it should.  
• Check also the oil level in the hydrostatic trans-  
mission, and top up if necessary.  
4. Check and top up with oil if necessary after test  
driving.  
44– English  
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Reparation instructions  
5
4
1 = Axle  
1 = Axle  
2 = Lock nut  
2 = Lock nut  
If the drive shafts do not rotate backwards despite  
the hexagonal axle having rotated a full turn, the  
neutral position is to be adjusted in the following  
way:  
• Slowly turn the axle anti-clockwise until the drive  
shafts stop rotating backwards and make a mark  
on the transmission housing (RS).  
• Slowly turn the axle anti-clockwise until the drive  
• Slowly turn the axle anti-clockwise until the drive  
shafts start to rotate forwards.  
shafts start to rotate forwards.  
• Slowly turn the axle clockwise until the drive  
shafts stop rotating forwards and make a mark  
on the transmission housing (FS).  
• Slowly turn the axle clockwise until the drive  
shafts stop rotating forwards and make a mark on  
the transmission housing (FS) and the axle.  
• Turn the axle clockwise 1/3 of the distance  
• Turn the axle clockwise 8° from the mark on the  
between the marked stop points.  
transmission housing.  
• Hold the axle (N=8) firmly and tighten the lock  
• Hold the axle (N=8) firmly and tighten the lock nut  
nut (N=17).  
(N=17).  
• Check that the drive shafts do not rotate in the  
neutral position by slowly transferring the  
steering arm to the neutral position from the  
forwards and reverse positions.  
Transmission maintenance  
Oil change  
Most garden owners do not have tools for or  
experience of changing transmission oil. The  
transmission probably has a longer operational life  
than other ride-on mower components, this makes  
transmission oil changes less important for most  
customers. However, the transmission's operational  
life is increased if oil changes are made.  
If the ride-on mower is used professionally, it is  
recommended to change the oil firstly after 50  
hours use and every 300 hours use thereafter.  
The transmission K 46 has a capacity for 2.2 litres/  
2,35 USqt (SAE10W/30 engine oil, grade SF-CC).  
The oil does not need changing in a manual  
gearbox.  
English – 45  
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Reparation instructions  
Changing oil – Rider 13 and Rider 16  
Removing the belt  
Rider 11, Rider 13 H, Rider 16 H och Rider 14  
Pro  
Empty the hydrostatic transmission with the two  
plugs, width across flats 14 mm. The other screws  
have smaller widths.  
Starting point when Removing the belt:  
•
•
A deck is not mounted on the machine.  
The front part of the belt hangs loose.  
IMPORTANT INFORMATION  
Spent engine oil is hazardous to health  
and must not be poured out on the  
ground or in the nature, but should be  
handed in to a designated place for  
recycling.  
The complete belt is removed as follows only if a  
snow blade is to be fitted on the machine.  
Avoid skin contact and wash any spillage  
with soap and water.  
8
1. Loosen the belt guide and support pulley.  
2. Loosen the belt tensioning pulley.  
Fill up with oil in the oil tank.  
3. Prise the belt off the middle pulley and remove  
the belt.  
Reverse the above sequence to refit the belt.  
Bleed the transmission as directed in “Bleeding of  
the hydrostatic transmission’s oil system”. Top up  
with oil after bleeding.  
Test run the machine and recheck the oil level.  
46– English  
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Reparation instructions  
Checking and adjusting mower deck  
ground pressure  
Checking and adjusting mower deck  
parallelism  
1
1
Check the tyre pressures (60 kPa/8,5 PSI).  
Check the tyre pressures (60 kPa/8,5 PSI).  
Place a set of bathroom scales under the mower  
deck's frame (front edge) so that the deck rests on  
the scales.  
Place the ride-on mower on an even surface and  
measure the distance between the ground and the  
edge of the deck, at the front and rear of the cover.  
The cutting unit should slope forwards slightly so  
that the rear edge is 2-4 mm (1/8") higher than the  
front edge.  
2
2
Adjusting Rider 11 and Rider 13 H  
Adjust the mowing deck's ground pressure with the  
adjuster nuts placed behind the front wheels on  
both sides of the ride-on mower. The ground  
pressure should be between 12 and 15 kg/26.5-33  
lbs and the springs tensioned equally.  
• Remove the front cover and the right-hand  
fender.  
• Vertical adjustment of the mowing deck is made  
with the adjuster nuts on the back edge of the lift-  
strut.  
• Raise the mowing deck at the front edge by  
shortening the lift-strut.  
Lower the mowing deck at the front edge by  
lengthening the lift-strut.  
• Tighten the nuts against each other after the  
adjustment.  
• On completion of the adjustment, the deck's  
parallelism should be re-checked.  
• Fit the right-hand fender and the front cover.  
English – 47  
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Reparation instructions  
2
2
Adjusting Rider 16  
Adjusting Rider 11 Bio and Rider 13 Bio  
• Remove the front cover and the right-hand  
• Remove the front cover and the right-hand  
fender.  
fender.  
• Unscrew the nut (1) on the parallel strut. Remove  
• Loosen the nuts on the parallel strut.  
the locking clips (3) and the parallel strut (2).  
• Screw in (shorten) the strut to lower the rear  
edge of the cover.  
• Turn the fork anticlockwise to raise the cover’s  
rear edge, clockwise to lower the cover’s rear  
edge.  
Screw out (extend) the strut to raise the rear  
edge of the cover.  
• Once adjustment is complete, refit the parallel  
• Tighten the nuts after adjustment.  
strut and clip and tighten the nut.  
• On completion of the adjustment the unit’s  
• Recheck the alignment of the cutting unit after  
parallelism should be re-checked.  
adjustment.  
• Fit the right-hand fender and the front hood.  
• Refit the right-hand fender and hood.  
48– English  
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Reparation instructions  
Adjusting cutting height area  
Adjusting cutting height  
1
3
2
11
Remove the right-hand fender.  
2
•
•
Loosen the nuts on the height setting arm.  
Adjust so that the distance between the stop for  
the lowest height setting and the protective  
frame is 5 mm (3/16").  
•
•
Tighten the nuts.  
Check that the parallelism has not changed. If it  
has changed, the parallelism must be  
readjusted again.  
•
•
Check and adjust the cutting unit’s ground  
pressure as set out (see “Checking and  
adjusting cutting unit ground pressure”) if  
necessary.  
Raise or lower the entire mowing deck by screwing  
the nuts up or down.  
If the highest cutting height is raised by 5 mm  
(3/16") the other fixed cutting heights will also be  
raised by the same amount.  
Fit the nose.  
IMPORTANT INFORMATION  
The parallelism and height must be  
adjusted again when changing the cutting  
unit.  
English – 49  
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Reparation instructions  
Removing the cutting unit  
3
BioClip and Combi unit  
1. Apply the parking brake.  
•
•
Adjust the cutting height to its lowest setting.  
Remove the front cover.  
2
Release the spring for the drive belt’s tensioning  
wheel. Move the cutting height lever to the lower  
position.  
4
Release the two support wheels under the front  
cover.  
3
Place one foot on the front edge of the deck by the  
wheel, and lift the front edge of the deck to simplify  
releasing the height setting rod. Secure the rod in  
the holder.  
Fit the two support wheels on each side of the  
lower part of the deck.  
WARNING!  
Wear protective glasses when  
removing the cutting unit. The  
spring which tensions up the belt  
can go off and cause personal  
injury.  
50– English  
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Reparation instructions  
5
1
2
Lift off the drive belt (1). Now pull out the pin (2).  
Make sure not to trap your hand.  
If the cylindrical bolt, which is now holding the  
mowing deck is removed, the mowing deck can be  
lifted off.  
6
To leave the service position  
To leave the service position, reverse the  
procedures set out in “Placing in the service posi-  
tion”. Make sure that the “lug” (3) on the mowing  
deck enters the clamp correctly on the underside of  
the machine, see diagram.  
Pull the frame forwards and replace the pin.  
7
Grip the front edge of the deck, and pull out and lift  
it up to the service position.  
English – 51  
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Reparation instructions  
Dismantling the cutting unit  
Rear and side ejectors  
1
4
• Place the machine on a level surface.  
• Apply the brakes by pressing down the pedal  
and lock using the pushbutton.  
WARNING!  
Wear eye protection and work  
gloves when working on the  
mowing deck.  
Lower the mowing deck to the mowing position with  
the lifting lever. Set the lowest mowing height with  
the mowing height lever.  
2
5
Remove the front cover. Remove the right and left  
folding cover.  
Remove the hairpin spring holding the lifting chain  
in the mowing deck.  
WARNING!  
The mowing deck will drop to the  
ground when the lock pins are  
removed. Risk for pinch injuries.  
3
6
Raise the mowing deck to the transport position  
with lifting lever.  
Work off the belt from the mowing deck’s rear  
pulley.  
Remove the lock pins (safety pins) on both sides of  
the back of the mowing deck.  
Fit the mowing deck in the reserve order.  
52– English  
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Reparation instructions  
Replacing the cutting unit’s belts  
Belt replacement on BioClip 103 and Combi 103  
There are two versions of BioClip 103. Version 1  
has one toothed belt and version 2 has two. Combi  
103 is only available with a tooth belt. The toothed  
belts drive the blades and synchronise their  
rotation. The belts are located under a cover on top  
of the cutting unit.  
1. Remove the cutting unit.  
2. Remove the front bolt from the parallel strut and  
tip the strut backwards. Push the height  
adjustment strut forwards.  
BioClip 103 Versions 1 and 2, Combi 103  
3. Loosen the two bolts holding the protective  
hood and then lift off the hood.  
Useful hint: Mark the positions of the blades on  
the respective pulley using a felt-tip pen.  
4. Version 1 and Combi 103:  
BioClip 103 Versions 1 and 2, Combi 103  
Loosen the three bolts 1/2 - 1 turn. Press the  
sides of the belt together to give maximum  
slack and tighten one of the bolts. Replace the  
belt and tighten as shown (see decal on cover).  
Set the blades at 90º to each other and loosen  
the bolt again. The spring ensures the correct  
belt tension. Check the positions of the blades  
again and adjust if necessary by repositioning  
the belt on the teeth. Tighten the three bolts to  
45 Nm/32 lbft.  
4. Version 2:  
BioClip 103 Version 1, Combi 103  
Loosen the nuts on the eccentric plate and turn  
this away.  
Loosen the four nuts (see diagram) holding the  
outer blade bearing enough so that the bearing  
can be moved.  
Slide the blade bearing in towards the centre  
bearing and pry off the upper belt.  
Repeat the procedure for the lower belt.  
WARNING!  
Protect your hands by wearing  
gloves when working with the  
blades.  
BioClip 103 Version 2  
English – 53  
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Reparation instructions  
5. Version 2:  
Assembly: First fit the lower belt and then the  
upper belt.  
Ensure the blades are positioned as set out in  
the diagram, at 90 degrees to each other,  
otherwise the belts must be adjusted. When the  
blade bearings are loose the belts can be  
moved around to the next tooth.  
Tighten the nuts enough so that the bearings  
rest against the cutting hood but still can be  
moved.  
Tension the belt by turning the eccentric adjuster  
on top of the cutting hood. Tighten the nut.  
IMPORTANT INFORMATION  
On a BioClip 90 and all 103 units the  
blades should have a relative position 90°  
between blades. In all other cases the  
blades can collide and cause serious  
damage to the cutting unit.  
Tighten all nuts on the blade bearings.  
6. Version 2:  
When the belt moves (d) = 7 mm/1/4" inwards  
with a force of (p) = 10 N/2 lb, the belt tension is  
correct.  
7. Version 1 and 2 as well as Combi 103:  
(p)  
(d)  
Fit the protective cover over the belts and  
replace the parallelism arm.  
Belt replacement on BioClip 90  
The BioClip 90 is driven by a toothed belt that  
synchronises rotation of the blades. The belt is  
located under the cover of the cutting unit.  
When changing the belt on BioClip 90, follow the  
above description, items 1-7 for version 2.  
NOTE!  
BioClip 90 only has 1 belt, tension (d) = 8 mm/5/16",  
(p) = 7 N/1,5 lb.  
Belt replacement on the mowing deck with side  
or rear ejection, BioClip 112 and Combi 112  
The blades on mowing decks with ”collision-proof”  
blades are driven by a V-belt. Proceed as follows to  
replace the  
V-belt:  
1. Remove the cutting unit, see page 31.  
2. Undo the bolt on the lift strut and the two screws  
on the cover. Lift the cover off the cutting unit.  
3. Loosen the spring (4) that tensions the V-belt  
and pry off the belt.  
The new belt is fitted in the reverse order.  
54– English  
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Reparation instructions  
Replacing the break-pin (BioClip 90, 103  
and Combi 103)  
Removal of blades with bearings  
The blades are fitted with a shear pin to protect the  
mowing deck and its drive when colliding with  
obstacles. A domed, spring friction washer is fitted  
to each blade bolt. The washer must always be  
replaced with a new washer when replacing the  
shear pin. Otherwise the break-pin can break  
causing the blades to collide.  
WARNING!  
When working with the mowing  
deck, use protective glasses and  
gloves.  
1
Only use original spare parts. A set containing a  
blade, break-pin and friction washer can be  
purchased from your dealer.  
1. Put the unit in the service position, see “Placing  
in the service position”.  
2. Remove the blade (2A) by removing the blade  
bolt with washer and friction washer (2B).  
3. Remove the remains of the broken break-pin  
(3).  
4. Make sure the contact surfaces (4) on the blade  
and the blade mounting are free from metal.  
Clean if necessary.  
• Release the spring which tensions the V-belt and  
5. Fit one new break-pin (5) in the blade  
twist off the belt.  
mounting.  
• Unscrew the screw which holds the pulley (2)  
and detach the pulley, a puller may be needed  
for this. Do not lose the key which is found  
between the pulley and the axle.  
6. Fit the blade (6), make sure it is fitted as  
illustrated.  
7. Fit a new friction washer (7) with the concave  
face turned towards the blade.  
8. Fit the blade bolt with washer (8). Tightening  
torque 45-50 Nm (4,5-5 kpm/32-36 lbft)  
2
5
3
2A  
4
6
4
7
2B  
8
Unscrew the screw which holds the blade and  
remove the screw, washer and blade.  
English – 55  
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Reparation instructions  
3
6
Unscrew the four screws which hold the blade  
bearing and remove the entire bearing packet from  
the mowing deck.  
• Press out the axle with a puller.  
• Knock out the bearings and remove the spacer.  
7
4
The entire packet can be bought as a complete set  
with axle housing, axle, spacer and bearing.  
Remove the hub using a puller. Do not lose the key  
which is found between the pulley and the axle.  
Installation is carried out in the reverse removing  
order.  
5
IMPORTANT INFORMATION  
When tightening the screws for the blade  
shafts the screws on the transmission  
side should always be tightened first,  
followed by the blade screws.  
The friction washer must be replaced  
when replacing the shear pin.  
Ensure that the axle is fixed in the same direction  
as it was removed, if not the keys will not fit into the  
key-way.  
Remove the sheet metal safety washer.  
Tighten the blade bearings to a torque of 20–25  
Nm/14-18 lbft.  
56– English  
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Reparation instructions  
Grinding and balancing of blades  
2
1
Balance the blade as follows:  
• Fix, for example, a mandrel horizontally in a  
WARNING!  
When working with the blades,  
use protective gloves.  
screw vice according to the diagram.  
• Push the blade onto the mandrel via the hole in  
the centre of the blade and check that the blade  
balances evenly. The diagram shows a blade  
which needs to be adjusted, it must be ground  
further to obtain the correct balance (at the  
arrow).  
• Remove the blades according to the decription in  
the previous section.  
• Clamp the blade in a screw vice and file it so that  
it becomes sharp.  
• Installation is carried out in the reverse removing  
order.  
IMPORTANT INFORMATION  
The friction washer must be replaced  
when replacing the shear pin.  
English – 57  
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Electrical system  
Circuit diagram Rider 11  
1. Microswitch, seat  
2. Ignition lock  
3. Microswitch, lifting lever  
4. Microswitch, gear position  
5. Fuse 15A  
6. Starter relay  
7. Engine/charging  
8. Engine/stop  
Key to colour abbreviations in the electrical system  
SV = Black  
RD = Red  
BR = Brown  
BL = Blue  
VT = White  
GR = Green  
GL = Yellow  
58– English  
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Electrical system  
Circuit diagram Rider 13 and Rider 13 Bio  
SV 1160mm  
SV 1160mm  
SV 510mm  
1
4
BL 1190mm  
GL 1030mm  
VT 450mm  
VT 760mm  
GL 1030mm  
SV 650mm  
BR 740mm  
SV 510mm  
SV 650mm  
BL1050mm  
VT 760mm  
2
S
G
S
M
B
3
M
B
BL 1190mm  
L
G
RD 980mm  
S
Pos. Utf .  
BR 740mm  
M
L
B
G
1 Av  
2 På  
G+M  
B+L  
BL 1050mm  
3 Start B+L+S  
RD 770mm  
RD 980mm  
6
RD 70mm  
5
RD 770mm  
VT 450mm  
1
2
7/8  
3
6
2
5
1
4
1. Microswitch, seat  
2. Ignition lock  
3. Microswitch, lifting lever  
4. Microswitch, gear position  
5. Fuse 15A  
6. Starter relay  
7. Engine/charging  
8. Engine/stop  
Key to colour abbreviations in the electrical system  
SV = Black  
RD = Red  
BR = Brown  
BL = Blue  
VT = White  
GL = Yellow  
English – 59  
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Electrical system  
Circuit diagram Rider 16  
SV 1160mm  
BL 1190mm  
SV 1160mm  
SV 510mm  
1
4
VT 450mm  
VT 760mm  
GL 1030mm  
GL 1030mm  
SV 650mm  
BR 740mm  
SV 510mm  
SV 650mm  
BL1050mm  
VT 760mm  
2
G
S
M
B
L
S
M
B
3
BL 1190mm  
L
G
RD 980mm  
GL 720mm  
S
Pos. Utf .  
BR 740mm  
M
L
B
G
1 Av  
2 På  
G+M  
B+L  
BL 1050mm  
3 Start B+L+S  
RD 770mm  
RD 980mm  
6
RD 70mm  
5
RD 770mm  
VT 450mm  
GL 720mm  
1
2
3
7/8/9  
3
6
2
5
1
4
1. Microswitch, seat  
2. Ignition lock  
3. Microswitch, lifting lever  
4. Microswitch, gear position  
5. Fuse 15A  
6. Starter relay  
7. Engine/charging  
8. Engine/stop  
Key to colour abbreviations in the electrical system  
SV = Black  
RD = Red  
BR = Brown  
BL = Blue  
VT = White  
GL = Yellow  
9
Engine/fuel valve  
60– English  
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Electrical system  
Inspecting the safety system  
Check that the engine stops if you temporarily move  
out off the driver’s seat while the cutting unit is  
lowered or the hydrostat pedals are not in the  
neutral position.  
The Rider is equipped with a safety system that  
prevents starting or driving under the following  
conditions:  
The engine should only be possible to start when  
the cutting unit is in its raised position and the  
hydrostat pedals are in the neutral position.  
Start engine  
Works  
The driver does not need to be seated in the  
driver’s seat.  
Make daily inspections to ensure that the safety  
system works by attempting to start the engine  
when one of the conditions is not met. Change the  
conditions and try again.  
Ignition system  
Does not work  
N
Rider 11  
2
1
Rider 13, Rider 16  
English – 61  
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Microswitch: Seat  
Microswitch: Neutral Position  
1. Fold up the seat and remove the spring disc  
with spring and spacer sleeve. The microswitch  
holder is released.  
1. Remove the transmission cover.  
2. Check the hydrostatic cable adjustment.  
3. Adjust the microswitch so that it is activated by  
the highest point in the hydrostatic arm’s path  
when no driving pedal is pressed.  
2. Disconnect the cable connections from the  
microswitch.  
3. Press in the fasteners and remove the  
microswitch from the holder.  
4. Adjust the microswitch so that it is definitely  
activated by the hydrostatic arm, but allows  
extra motion (it must not bottom out). Tip: Hold  
a feeler gauge between the switch and the arm  
when making the adjustment.  
Assembling is done in the reverse order without  
setting.  
5. Replace the transmission cover.  
Microswitch: Mowing Deck  
1. Loosen the right-hand wing cover.  
2. Remove the inner protecting plate on the gear  
lever carrier.  
3. Release the connector from the microswitch.  
4. Remove the microswitch.  
Assembling is done in the reverse order without  
setting.  
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Main fuse  
Ignition and Starter Lock  
1. Loosen the right-hand wing cover.  
The fuse is placed in a detachable holder under the  
battery case’s cover, in front of the battery.  
2. Remove the inner protecting plate on the gear  
lever carrier.  
Type: Flat pin, 15 A.  
3. Release the contact box from the ignition lock  
by pulling it straight down.  
Do not use any other type of fuse when replacing.  
A blown fuse is indicated by a burnt connector.  
Pull the fuse from the holder when replacing.  
The fuse is there to protect the electrical system.  
4. Remove the ignition key and the rubber seal.  
5. Remove the nut and the ignition lock.  
Assemble the parts in the reverse order. Make sure  
the connector ends up in the proper position (click-  
lock).  
If it blows again shortly after replacement, it is due  
to a short circuit, which must be fixed before the  
machine can be put into operation again.  
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ENGINE WILL NOT START  
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ENGINE STARTS BUT DOES NOT RUN SATISFACTORILY  
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114 01 45-26  
´®z+H.T¶6w¨  
2002W51  
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We hope you find the links below useful. For further gardening information visit  
www.GardenResources.co.uk  
Blower Vacs  
Cultivators  
Brush cutters  
Cylinder lawn  
mowers  
Brushcutters  
Cylinder mowers  
Chainsaws  
Echo chainsaws  
Chain saws  
Echo Strimmers  
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spreaders  
Garden vacuums  
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Garden rollers  
Hedge cutters  
Garden shredders  
Hedgecutters  
Hayter lawn  
mowers  
Hover mowers  
Husqvarna  
chainsaws  
Lawn tractors  
Ride on lawn  
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Kawasaki brush  
cutters  
Leaf blowers  
Ride on mowers  
Kawasaki  
strimmers  
Leaf vacuums  
Rotary mowers  
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Lawn scarifiers  
Petrol hedge  
cutters  
Petrol chainsaws  
Rotavators  
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Scarifiers  
Strimmers  
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tractors  
Westwood ride on  
mowers  
Westwood  
tractors  
Chainsaws  
Brush Cutters  
Cultivators  
Brushcutters  
Blower Vacs  
Chain Saws  
Cylinder Lawn  
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Garden Blowers  
Echo Chainsaws  
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Lawn Rollers  
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Spreaders  
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Garden Vacuums Hayter Lawn  
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Ride on Lawn  
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Gas Greenhouse Stainless Steel  
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Patio Heaters UK  
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Heaters  
Patio Heaters  
Christmas  
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Mowers  
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Also See  
Gardening Tools Direct, for lawn mowers, brush cutters, chainsaws  
Gardening Supply for patio heaters, lawn mowers, chainsaws  
Garden Tractor, for lawn tractors and ride on mowers  
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