101 90 98-26

Rider 11, Rider 13 H,Rider 11 Bio, Rider 13 H Bio,Rider 14 Pro, Rider 16 H

Workshop Manual

English – 1

Safety regulations ............................................... 2General instructions ......................................... 2Special instructions .......................................... 2

Special tools ........................................................ 3Technical data ..................................................... 4

Dimensions ...................................................... 4Engine .............................................................. 4Gear box .......................................................... 4Transmission .................................................... 4Play .................................................................. 4Tightening moments ......................................... 4Mowing deck .................................................... 5Control points ................................................... 5

Delivery and dealer service ................................ 6Maintenance schedule ........................................ 8Delivery measures ............................................ 10

Refilling battery acid.................................. 10Fastening steering wheel .......................... 10Fastening seat .......................................... 10Fastening support wheels ......................... 10

Design and function .......................................... 11General .......................................................... 11Engine ............................................................ 12Steering .......................................................... 13Driving ............................................................ 14Mowing deck .................................................. 15

Reparation instructions .................................... 16Removing engine ........................................... 16Replacing engine ........................................... 18Changing engine oil ....................................... 21Checking and adjusting steering wires .......... 21Replacing steering wires ................................ 22Removal/installation of steering axle ............. 22Removal/installation of wire wheel ................. 23Checking and adjusting brake wire ................ 24Checking and adjusting gear control .............. 25Checking and adjusting throttle control .......... 26Checking and adjusting freewheel clutch ....... 26Replacing articulated steering bearing ........... 27

Removal of swing axle ................................... 28Replacing bushings ........................................ 29Installation of swing axle ................................ 29Removal/installation of gear box .................... 30Removal/installation of hydrostatictransmission ................................................... 31Replacing hydrostat. trans. axle seals ........... 33

Input axle .................................................. 33Outgoing axles .......................................... 34

Replacing hydrostatic transmission wire ........ 35Hydrostatic transmission brake ...................... 40

Removal of brake ...................................... 40Installation of brake ................................... 40Adjustment of brake .................................. 41

Bleeding hydrostatic transmission oil system 42Adjustment of transmission neutral position .. 42Transmission maintenance ............................ 43Removal of belt .............................................. 44Checking and adjusting cutting unit groundpressure ......................................................... 45Checking and adjusting parallelism of themowing deck .................................................. 45Adjusting cutting height area .......................... 47Adjusting cutting height .................................. 47Removal of mowing deck ............................... 48Replacing cutting unit belts ............................ 51

Belt replacement on Bio-unit ..................... 51Belt replacement on mowing deck withside- or rear discharge .............................. 53

Removal of blades with bearings ................... 53Grinding and balancing of blades .................. 55Pulse air valve intake filter ............................. 55

Troubleshooting chart ...................................... 56Electrical system ............................................... 57

Circuit diagram Rider 11/11 Bio ...................... 57Circuit diagram Rider 13 H/13 H Bio/16 H ..... 58Circuit diagram Rider 14 Pro .......................... 59

Workshop manualRider 11, Rider 13 H

Rider 11 Bio, Rider 13 H BioRider 14 Pro, Rider 16 H

Contents

2 – English

Safety regulations

General instructionsThe workshop handbook is written for personnel whoare assumed to have general ride-on mower repara-tion and service know-how.

The workshop where the ride-on mower is repairedshould be equipped with safety devices inaccordance with local regulations.

No-one should attempt to repair the ride-on mowerwithout having first read and understood the contentsof this handbook.

The machine is tested for safety and approved onlyfor equipment supplied or recommended by themanufacturer.

The below-mentioned boxes are included in thisworkshop handbook, as is appropriate.

Special instructionsThe fuel used in the ride-on mower has thefollowing hazardous characteristics:

• Toxic fluid and fumes

• Can cause eye and skin complaints

• Can cause breathing difficulties

• Highly flammable

When using compressed air, do not direct thecompressed air stream towards your, or anybodyelse's, body. Air can be forced into the bloodstream, thereby constituting a danger to life .

Use hearing protectors when test driving.

After test driving, do not touch the silencer before ithas cooled down. Risk of burn injuries. Thisespecially applies if the ride-on mower is equippedwith a catalytic converter. If consumed, the lining onand in the catalytic converter element is dangerousto health. Use protective gloves when working withthe catalytic converter/silencer.

The blades are sharp and can cause cuttinginjuries. Always use protective gloves when you arehandling the blades.

Use protective glasses when working with themowing deck. If the belt's tension spring comes offand flies upwards, this can cause injury to persons.

Be extra careful when handling battery acid. Spillingacid on the skin can cause severe burn injuries. Ifacid is spilt on the skin, rinse immediately withwater. If acid gets into the eyes, this can causeblindness. Contact a doctor.

Be careful with the maintenance of the battery.Explosive gas is formed in the battery. Neverhandle the battery when smoking or in the vicinity ofnaked flames or sparks. Otherwise, the battery canexplode and cause severe injuries.

IMPORTANT INFORMATION

This box indicates a risk of damage to thematerial if the instructions are notfollowed.

WARNING!The warning box indicates arisk of injury to persons if theinstructions are not followed.

!

English – 3

Special tools

The following special tools are used when working on the ride-on mower.

506 56 76-01 Ball-ended Allen key 5/16" to unscrew the engine pulley socket head cap screw (Kawazaki).

506 57 00-01 Wheel puller for Rider 11/11 Bio, Rider 13 H/13 H Bio and Rider 16 H.

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 Holder-on for engine pulley removal.

506 89 93-01 Tool for removing steer return spring.

506 66 48-01 506 79 06-01506 57 00-01 506 89 92-01506 56 76-01 506 89 93-01

4 – English

Technical data

Tightening moments

Carrier steering 5–10 NmPulley steering wire 20–30 NmBelt wheel 35–40 NmBlades 45–50 NmBlade bearings 20–25 NmBelt tensioner wheel 15–25 NmHolder screws, engine 20–25 NmHolder screws, gear box 20–25 NmBrake drum bolts hydrostatic transmission 27 NmEngine pulley 70–80 NmWheel axle nut 100–150 Nm

Dimensions: Rider 11/11 Bio Rider 13 H/13 H BioLength 2 090 mm 2 150 mmWidth 880 mm 880 mmHeight (over steering wheel) 1 070 mm 1 070 mWeight 197 kg 197 kgTrack front 720 mm 720 mmTrack rear 620 mm 630 mmWheel base 860 mm 850 mmTyre size 16 x 6.50 x 8 16 x 6.50 x 8Air pressure 60 kPa 60 kPaMax. gradient 15° 15°

Engine: Rider 11/11 Bio Rider 13 H/13 H BioManufacture Briggs & Stratton Briggs & Stratton

model 28N707 model 286707Power 7,7/10,5 kW/hp 9,2/12,5 kW/hpDisplacement 362 cm3 465 cm3

Fuel min. 85 octane unleaded min. 85 octane unleadedTank capacity 7 litres 7 litresOil SAE 30 or SAE 10W/30 SAE 30 or SAE 10W/30

class CD–F class CD–SFOil capacity 1,4 litres 1,4 litresStart Electric start Electric start

Gearbox: Rider 11/11 Bio Rider 13 H/13 H BioManufacture Peerless MST 205 Tuff Torq K55Oil SAE 10W/30

class CD-SFOil capacity 2,2 litresGears, forwards 5Gears, reverse 1

Electrical system Rider 11/11 Bio Rider 13 H/13 H BioType 12 V, negative earth 12 V, negative earthBattery 12 V, 24 Ah 12 V, 24 AhSpark plug Champion CJ8 or J8 Champion CJ8 or J8Spark plug gap 0,7 - 0,8 mm 0,7 - 0,8 mm

Play

Clutch wire: 8–10 mmBrake control lever against stop bolt: 0–1 mmBrake control lever: 7–9 mmBrake wire hydrostatic transmission: 0 mm

English – 5

Technical data

Control points

Mowing deck parallelism with cutting height in pos. 1: ± 2 mmCutting height control in pos. 1: Rider 11= 37 ± 2 mm

Bio = 45 ± 2 mmOther = 40 ± 2 mm

Synchronous transmission belt tension Bio 103 at 10 N force, impression: 7 mmSynchronous transmission belt tension Bio 90 at 7 N force, impression: 8 mmDist. between support plate and drive belt: 3–6 mmDistance belt tensioner control leverand belt guide, disengaged unit: 17 ± 5 mm

Dimensions: Rider 14 Pro Rider 16 HLength 2 120 mm 2 080 mmWidth 880 mm 880 mmHeight (over steering wheel) 1 070 mm 1 070 mmWeight 234 kg 210 kgTrack front 720 mm 720 mmTrack rear 640 mm 630 mmWheel base 860 mm 860 mmTyre size 16 x 7.50 x 8 18 x 6.50 x 8Air pressure 60 kPa 60 kPaMax. gradient 15° 15°

Engine: Rider 14 Pro Rider 16 HManufacture Briggs & Stratton Briggs & Stratton

Vanguard V-Twin model 28N707model 294777

Power 12/14 kW/hp 11,4/15,5 kW/hpDisplacement 480 cm3 465 cm3

Fuel min 85 octane unleaded min 85 octane unleadedTank capacity 7 litres 7 litresOil SAE 30 or 10W/30 SAE 30 or 10W/30

class CD-CF class CD-CFOil capacity 1,5 litres 1,2 litresStart Electric start Electric start

Gearbox: Rider 14 Pro Rider 16 HManufacture Tuff Torq K 61 Tuff Torq K 55Oil SAE 10W/30 SAE 10W/30

class CD-CF class CD-CFOil capacity 3,3 litres 2,2 litres

Electrical system Rider 14 Pro Rider 16 HType 12 V, negative earth 12 V, negative earthBattery 12 V, 24 Ah 12 V, 24 AhSpark plug Champion RC12YC Champion CJ8 or J8Spark plug gap 0,7 - 0,8 mm 0,7 - 0,8 mm

Mowing deck: Rear ejector 85 Rear ejector 97 Rear ejector 120 Bio 90 Bio 103Cutting width 850 mm 970 mm 1 200 mm 900 mm 1 030 mmCutting height 40-90 mm 40-90 mm 40-90 mm 45-95 mm 45-95 mmBlade length 350 mm 440 mm 440 mm 410 mmNoise level 100 dB(A) 100 dB(A) 100 dB(A) 100 dB(A) 100 dB(A)Weight 28,0 kg 40,0 kg 60,2 kg 38,0 kg 44,0 kgOverall width 950 mm 1 075 mm 1 305 mm 1 000 mm 1 115 mm

6 – English

Delivery and dealer servicePre-delivery service

1. Top up battery with acid and recharge for four hours.

2. Fit steering wheel, seat and any optional equipment.

3. Fit cutting unit.

4. Adjust cutting unit:

Adjust lift springs (effective weight of cutting unit should be12–15 kg, or set to maximum lift if brush is to be fitted).

Adjust cutting unit so that rear edge is about 2–4 mm higher than front edge.

Adjust cutting unit height setting so that cutting height limit is 5 mm above the frame of the unit at thelowest cutting height.

5. Check that engine has correct amount of oil.

6. Check and adjust tyre pressure (60 kPa, 0.6 bar).

7. Connect battery.

8. Fill with fuel and start engine.

9. Check that machine does not move in neutral.

10. Check:

Forward drive.

Reverse drive.

Operation of blades.

Seat safety switch.

Lift lever safety switch.

Parking brake safety switch.

11. Check engine revs 3,000–3,100 rpm.

12. Tell customer about:

Need and benefits of following the service schedule.

Need and benefits of having machine serviced every 300 hours.

Servicing and the influence of this journal on the second-hand value of the machine.

Range of applications for BioClip.

13. Complete proof of sale, etc.

After first 5 hours

1. Change engine oil.

English – 7

25 hour service

1. Change engine oil (50 hours).(25 hours if operating conditions severe).

2. Clean/replace air pre-filter or oil-foam elementif fitted (25 hours).(more regularly in dusty working conditions)

3. Clean/replace air filter cartridge (25 hours, 100hours if pre-filter fitted).(more regularly in dusty working conditions)

4. Clean engine cooling air intake.

50 hour service

1. Change engine oil.

2. Clean/replace air pre-filter or oil-foam elementif fitted.

3. Clean/replace air filter cartridge (25 hours, 100hours if pre-filter fitted)(more regularly in dusty working conditions)

4. Clean engine cooling air intake.

5. Check/adjust cutting height setting.

6. Check/adjust parking brake.

7. Inspect flame guard/spark arrestor (optionalequipment)

100 hour service

1. Change engine oil.

2. Clean/replace air pre-filter or oil-foam elementif fitted.

3. Clean/replace air filter cartridge (25 hours, 100hours if pre-filter fitted).(more regularly in dusty working conditions)

4. Check/adjust cutting height setting.

5. Check/adjust parking brake.

6. Inspect flame guard/spark arrestor (optionalequipment)

7. Replace engine oil filter.

8. Clean/replace spark plug.

9. Replace fuel filter in fuel line.

10. Clean pulse-air filter.

11. Clean cooling system.

12. Check engine valve clearance.

300 hour service

1. Change engine oil.

2. Replace air filter (pre-filter).

3. Replace air filter (paper).

4. Check/adjust cutting height setting.

5. Check/adjust parking brake.

6. Inspect flame guard/spark arrestor (optionalequipment)

7. Replace engine oil filter.

8. Clean/replace spark plug.

9. Replace fuel filter in fuel line.

10. Clean pulse-air filter.

11. Clean cooling system.

12. Check engine valve clearance.

13. Carry out 300 hour service at authorised dealer.

At least once a season

1. Change engine oil (50 hours).(25 hours in severe operating conditions).

2. Clean/replace air pre-filter or oil-foam element iffitted (25 hours).(more regularly in dusty working conditions)

3. Clean/replace air filter cartridge (25 hours, 100hours if pre-filter fitted).(more regularly in dusty working conditions)

4. Check/adjust cutting height setting.

5. Check/adjust parking brake.

6. Inspect flame guard/spark arrestor, optionalequipment(50 hours).

7. Replace engine oil filter (100 hours).

8. Clean/replace spark plug (100 hours).

9. Replace fuel filter in fuel line (100 hours).

10. Clean pulse-air filter.

11. Clean cooling system (100 hours).(more regularly in dusty working conditions)

12. Check engine valve clearance (100 hours).

13. Carry out 300 hour service at authorised dealer.

Delivery and dealer service

8 – English

Maintenance schedule

Maintenance interval inhours

Daily main-tenancebefore after

Weekly3)

main-tenance

At leastonce ayear

Check for fuel and oil leakage - ❍Check the parking brake 23 ●Check the engine oil level (when yourefuel) 20 ●Check the fuel pump air filter 21 ●Check the seat safety switch 23 ●Check the lift lever safety switch 23 ●Check the parking brake safety switch 23 ●Check/clean the engine cooling air intake 20 ●Check the cutting unit: 27 ●• blades are secure 29 ●• condition of blades (sharpness,

shape, etc.) 29 ●• blade synchronisation (90° between

BioClip) 29 ●Check steering wires (for play, etc.) 22 ●Check fasteners (screws, nuts, etc.) - ❍Start engine and blades, listen for noise - ❍Clean underside of cutting unit 29 ●Clean transmission air intake 21 ●Check battery acid level 23 ●Check transmission oil level 21 ●Check condition of V-belts, pulleys, etc. - ❍Check for damage - ❍Check tyre pressures (60 kPa) 39 ●Check for damage to wire guide atarticulated joint - ❍Clean thoroughly around engine - ❍Clean air filter (pre-filter) 24 ●Clean thoroughly around transmission - ❍Clean all belts, pulleys, etc. - ❍Lubricate pivot (nipple) 37 ●Lubricate belt tensioner (nipple) 37 ●Lubricate triangle link (nipple) 37 ●Lubricate seat suspension - ❍Lubricate all wires 37 ●Lubricate safety lock on cutting unit 28 ●Lubricate inner stud on cutting unit 28 ●Lubricate slot for cutting unit tool frame 28 ●Lubricate bearing surfaces on cutting unit 28 ●Clean inside frame tunnel - ❍Lubricate pedal mechanism inside frametunnel - ❍

25 50 100 300

PageMaintenance

The following is a list of the maintenance which should be conducted on the machine. Most of the points thatare not covered by this workshop manual are covered by the operator’s manual.

English – 9

1) First change after 5 hours. 2)When driving with a heavy load or when the ambient temperature is high, replace every 25 hours. Cleanevery 25 hours if pre-filter is not fitted. Clean and replace the filter more often in dusty conditions. 3) For daily use of the machinelubrication should be conducted twice a week. 4) Conducted by authorised service workshop.

! WARNING!No service procedures must be conducted on the engine or cutting unit unless:

● = Covered by this workshop manual.❍ = Not covered by this workshop manual.

Maintenance interval inhours

Daily main-tenancebefore after

Weekly3)

main-tenance

At leastonce ayear 25 50 100 300

PageMaintenance

Lubricate throttle control - ❍

Lubricate choke control - ❍

Smörj styrkedja i ramtunnel. - ❍

Lubricate steering chain inside frametunnel - ❍

Clean engine cooling air intake 20 ● ●

Clean pre-filter or oil-foam element,if fitted 24 ● ●

Clean air filter cartridge2) 24 ● ● ●

Change engine oil1) 36 ● ●

Check/adjust cutting height setting 27 ● ●

Check/adjust parking brake 23 ● ●Inspect flame guard/spark arrestor(optional equipment) - ❍ ❍

Replace engine oil filter 37 ● ●

Clean/replace spark plugs - ❍ ❍

Replace fuel filter in pipe 39 ● ●

Clean pulse-air filter 39 ● ●

Clean cooling system - ❍ ❍

Check engine valve clearance4) - ❍ ❍

Replace air filter (pre-filter)2) 24 ● ●

Replace air filter (paper filter)2) 24 ● ●

Carry out 300 hour service 4) - ❍ ❍

• The engine is switched off.

• The ignition key is removed.

• The ignition cables are removedfrom the plugs.

• The parking brake is applied.

• The cutting unit is disengaged.

Maintenance schedule

10 – English

!

Refilling battery acid

The battery is delivered dry from the factory.

• Slowly fill the battery acid up to the mark on thebattery.

• Wait 20 minutes and fill, as is required, with morebattery acid.

• Charge the battery (12 V, 6 A) for four hours.

• Check the level of acid and fill, as is required,with distilled water up to the correct level.

WARNING!

The battery acid is highly corrosive. Userubber gloves and protective glasses. Avoidbreathing in the acid fumes.

Measures for contact with acid

External: Rinse thoroughly with water.

Internal: Drink large quantities of water ormilk. Contact a doctor as soon aspossible.

Eyes: Rinse thoroughly with water.Contact a doctor as soon asap.

The battery gives off explosive gas. Sparks,naked flames and cigarettes must absolutelynot be in the near vicinity of the battery.

• Fasten the steering wheel with steering columnon the steering shaft.

• Tighten the socket head cap screw, make surethat it sits in its groove on the steering shaft.

• Securely lock the socket head cap screw with thelocking nut.

Fastening steering wheel

Insert the seat pin through the hole in the frame andseat attachment and fasten spring pin.

Fastening seat

Fastening support wheels

Fasten the support wheels with axles, spacers andnuts in the support wheels holder.

Delivery measures

English – 11

Design and functionGeneral

Husqvarna Riders is a series of ride-on mowerswith a large capacity. There are six sizes, from thesmallest Rider 11 to the largest Rider 20 ProFlex.

This manual refers mainly to the smaller machines;the larger ProFlex machines are covered by aseparate manual. All Riders have articulatedsteering in order to easily cut around trees andother obstacles. Moreover, they all have front-mounted mowing decks for controlled cutting andfor best possible cutting results.

Husqvarna Riders can, moreover, be equippedwith various accessories such as moss rake anddozer blade which make them flexible workingtools throughout the year.

Rider 11 and Rider 11 Bio can be delivered with amanual gearbox, while the other models are onlyavailable with hydrostatic transmission.

Rider 11 and Rider 13 H have a mowing deck withrear ejection. They can also be ordered with a Biodeck, in which case they are called the Rider 11 Bioor Rider 13 H Bio.

Rider 14 Pro can be delivered with four differentmowing decks.Bak 97 (rear ejection)Sido 97 (side ejection)Bio 90 or Bio 103

Rider 16 H can be delivered with four differentmowing decks.Bak 97 (rear ejection)Sido 97 (side ejection)Bio 90 or Bio 103

R I D E R 8 5 0R I D E R 8 5 0R I D E R 8 5 0

R I DE R

8 5 0

R I DE R

8 5 0

R I DE R

8 5 0

12 – English

Design and function

Engine

All Husqvarna Riders have engines from Briggs &Stratton. The Rider 11/11 Bio, Rider 13 H/13 H bioand Rider 16 H have single-cylinder engines, whilethe Rider 14 Pro has a twin-cylinder engine. Boththe single and two-cylinder engines are air cooled.

More intricate engine repairs are not described inthis workshop handbook, these can instead be readin Briggs & Stratton's own handbooks which containdetailed information about adjusting and repairingthe engines. The handbooks can be ordered froman authorized service workshop.

Rider 11/11 Bio and Rider 13 H/13 H Bio have asingle-cylinder side valve engine with spraylubrication with power outputs of 10.5 and 12.5 hprespectively.Rider 16 H has a 15.5 hp single-cylinder overheadvalve engine.

The Rider 14 Pro has a twin-cylinder overheadvalve engine with pressure lubrication and aseparate oil filter. This engine is equipped with acatalytic converter that reduces emissions ofhydrocarbons and nitrogen oxides by up to 65%and reduces carbon dioxide by up to 45%.

The order numbers for the respective Rider modelsare found in the table below. Please state thesewhen ordering manuals:

Model B & S model no.Rider 11/11 Bio 28B707Rider 13 H/13 H Bio 286707Rider 14 Pro 294777Rider 16 H 28N707

It is important that only original spare parts areused when repairing the engines. If other parts areused, the guarantee shall no longer be valid.

English – 13

Design and function

Steering

All the ride-on mowers in Husqvarna's Rider-serieshave articulated steering. The steering force fromthe steering wheel is transferred to the rear sectionvia wires and a chain. This ensures that the ride-onmower is easy to manoeuvre, as well as havinghigh-precision steering. A Rider easily cuts aroundall obstacles that may be found on the lawn.

Thanks to the articulated steering, the turningradius is extremely small, the uncut circle when thesteering wheel is fully turned is just 20–30 cmdepending on which model is chosen.

Outline diagram of the articulated steering function.

Rider machines have a sliding bearing (1) on thesteering column.

14 – English

Design and function

Driving

Rider 13 H/13 H Bio, Rider 16 H, Rider 14 Pro areequipped with hydrostatic transmission whichprovides the driver complete control. Continuouslyvariable speed control, forwards and reverse, is bymeans of a foot pedal.

Rider 11 and Rider 11 Bio have a manual gear boxwith five forward gears, neutral and one reversegear. This gear box is an "inline" type, which meansthat you can change from neutral to fifth gearwithout having to go through all the other gears.

Manual gear box on Rider 11 and Rider 11 Bio. Hydrostatic transmission on Rider 14 Pro.

Hydrostatic transmission on Rider 13 H, Rider 13 HBio and Rider 16 H.

English – 15

Mowing deck

The entire Rider series is equipped with front-mounted mowing decks to ensure effective cuttingeven in confined areas.

Rider 11 and Rider 13 H have a mowing deck withrear ejection and a cutting width of 850 mm.

Rider 11 Bio and Rider 13 H Bio have a Bio deckwith a cutting width of 900 mm.

The remaining Rider machines can be deliveredwith a choice of mowing decks, with rear ejection,side ejection or Bio.

Design and function

Mowing deck with rear ejection, 850 mm.

Bio 90

Bio 103

Mowing deck with side ejection.

Mowing deck with rear ejection

16 – English

Reparation instructions

Removing engine

31

2 4

Remove the battery's fixing belt. Remove the safetyguard and remove the cable connections. Then, liftout the battery.

Remove the cable which leads from the starterrelay to the start motor.

Mark up and remove the engine's electricalconnections.

Remove the clamps which hold the throttle andchoke wires. Unhook the wires from theirattachment in the carburettor.Rider 11/11 Bio, Rider 13 H/13 H Bio and Rider16 H have just one wire which controls both thethrottle and the choke.

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English – 17

Reparation instructions

6

5 7

Remove the fuel line hose clamp from the fuelpump and pull the fuel line downwards.

Remove the cover plate over the silencer (twoscrews on either side of the silencer) and lift out theplate.

Remove the exhaust pipe clamps and the silencer’sfour retaining bolts. Then remove the silencer,exhaust pipe and the accompanying pulse air valve.On Rider 11/11 Bio, Rider 13 H/13 H Bio andRider 16 H the exhaust pipe is removed withoutremoving the silencer.

8

Clamp together the wire holder under the enginepulley with a pair of flat pliers and pull the wireholder downwards.

18 – English

Reparation instructions

10

Remove the engine attachments, two on each sideof the engine, and remove the engine from themower.

Insert tool no. 506 79 06-01 into the centre of theengine pulley. Unscrew and remove the sockethead cap screw which holds the pulley and theengine axle together. Use tool no. 506 89 92-01 asa holder-on. Remove the pulley from the engineaxle.

IMPORTANT INFORMATION

When installing the engine, it is importantthat the pulley groove (1) is in a position sothe outgoing axle key (2) fits into the groove(see diagram). Also check that both spacingcollars (3) and the key (2) are firmly attachedon the engine axle. Grease the engine axle.

Replacing engine9

1

Lower the engine and tighten the engineattachments (two on each side of the engine) withmoment (25 Nm).