Workshop manual

English

Rider 11, Rider 13,Rider 11 Bio, Rider 13 Bio,Rider 16

English – 1

Workshop manual

Rider 11, Rider 13Rider 11 Bio, Rider 13 Bio

Rider 16

Contents

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

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

Tightening moments ......................................... 4Play .................................................................. 4Mowing deck .................................................... 5Control points ................................................... 5

Delivery and dealer service ................................ 7Maintenance schedule ..................................... 9

Delivery measures ............................................ 10To our dealer .................................................. 10Packaging and unpacking .............................. 10Parts enclosed in packaging .......................... 10Battery ............................................................ 11Steering wheel ............................................... 12Tow plate ........................................................ 12Oil levels ........................................................ 12Wheels ........................................................... 13Checking and adjusting of the mowingdeck’s ground pressure and parallelism ........ 13Test running ................................................... 14Speed regulator ............................................. 15Administration ................................................ 15

Design and function .......................................... 16General .......................................................... 16Serial number ................................................. 17Engine ............................................................ 18Steering .......................................................... 19Driving ............................................................ 20Mowing deck .................................................. 20

Reparation instructions .................................... 23Removing engine ........................................... 23Replacing engine ........................................... 25Fuel tank ........................................................ 27Changing engine oil ....................................... 28Checking and adjusting steering wires .......... 28Replacing steering wires ................................ 29Removal/installation of steering axle ............. 29Removal/installation of wire wheel ................. 30Checking and adjusting brake wire ................ 31Checking and adjusting gear control .............. 32Checking and adjusting freewheel clutch ....... 32

Checking and adjusting throttle control .......... 33Replacing articulated steering bearing ........... 33Removal of swing axle ................................... 35Replacing bushings ........................................ 35Installation of swing axle ................................ 36Removal/installation of gear box .................... 37Removal/installation of hydrostatictransmission ................................................... 37Replacing hydrostat. trans. axle seals ........... 38

Input axle .................................................. 38Outgoing axles .......................................... 39

Replacing hydrostatic transmission wire ........ 40Bleeding hydrostatic transmission oil system 44Adjustment of transmission neutral position .. 44Transmission maintenance ............................ 45

Oil change ................................................. 45Removal of belt .............................................. 46Checking and adjusting cutting unit groundpressure ......................................................... 47Checking and adjusting parallelism of themowing deck .................................................. 47Adjusting cutting height area .......................... 49Adjusting cutting height .................................. 49Removing the cutting unit .............................. 50To leave the service position .......................... 51Dismantling the cutting unit ............................ 52Replacing cutting unit belts ............................ 53

Replacing belt on BioClip 103 andCombi 103................................................. 53Replacing belt on BioClip 90 ..................... 54Belt replacement on mowing deck withside- or rear discharge BioClip 112 andCombi 112 ................................................. 54

Replacing breakpin ........................................ 55Removal of blades with bearings ................... 55Grinding and balancing of blades .................. 57

Electrical system ............................................... 58Circuit diagram Rider 11 ................................ 58Circuit diagram Rider 13 and Rider 13 Bio .... 59Circuit diagram Rider 16 ................................ 60Inspection of safety system............................ 61

Troubleshooting chart

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 and approved only with theequipment originally provided or recommended bythe manufacturer.

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 eye protection when working with tensionedsprings.

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.

Use eye protection when working with the batterywith the plugs removed. Be extra careful whenhandling battery acid. Spilling acid on the skin cancause severe burn injuries. If acid is spilt on theskin, rinse immediately with water. If acid gets intothe eyes, this can cause blindness, contact adoctor.

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.

IMPORTANT INFORMATION

Waste oil and old filters shall be handledas hazardous waste.

English – 3

Special toolsThe 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.

4 – English

Technical data

Tightening moments

Carrier steering 5–10 Nm 3,5-7 lbftPulley steering wire 20–30 Nm 14-21 lbftBelt wheel 35–40 Nm 25-28 lbftBlades 45–50 Nm 32-36 lbftBlade bearings 20–25 Nm 14-18 lbftBelt tensioner wheel 15–25 Nm 10-18 lbftHolder screws, engine 20–25 Nm 14-18 lbftHolder screws, gear box 20–25 Nm 14-18 lbftEngine pulley 70–80 Nm 50-56 lbft

Dimensions: Rider 11 Rider 13Length 2 090 mm/6,85 ft 2 000 mm/6,56 ftWidth 880 mm/2,89 ft 900 mm/2,95 ftHeight (over steering wheel) 1 070 mm/3,52 ft 1 060 m/3,48 ftWeight 197 kg/433 lb 190 kg/419 lbTrack front 720 mm/2,36 ft 625 mm/2,05 ftTrack rear 620 mm/2,04 ft 625 mm/2,05 ftWheel base 860 mm/2,81 ft 860 mm/2,81 ftTyre size 16 x 6.50 x 8 16 x 6.50 x 8Air pressure 60 kPa/8,5 PSI 60 kPa/8,5 PSIMax. gradient 15° 15°

Engine: Rider 11 Rider 13Manufacture Briggs & Stratton Briggs & StrattonModel 28N707 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/7,4 USqt 7 litres/7,4 USqtOil SAE 30 or SAE 10W/30 SAE 30 or SAE 10W/30

class SF-CC class SF-CCOil capacity 1,4 litres/1,5 USqt 1,4 litres/1,5 USqt

Gearbox: Rider 11 Rider 13Manufacture Peerless MST 205 Tuff Torq K46Oil SAE 10W/30 class SF-CCOil capacity 2,2 litres/2,35 USqtGears, forwards 5Gears, reverse 1

Electrical system Rider 11 Rider 13Type 12 V, negative earth 12 V, negative earthBattery 12 V, 24 Ah 12 V, 24 AhMain fuse Flat pin yoke 15 A Flat pin yoke 15 ASpark plug Champion CJ8 or J8 Champion CJ8 or J8Spark plug gap 0,75 mm/0,030" 0,75 mm/0,030"

Play

Clutch wire R 11: 8–10 mm(5/16" - 3/8")

Brake control lever against stopbolt R 11: 0–1 mm

(0 - 0.040")Brake control lever R 11: 7–9 mm

(1/4" - 3/8")Brake wires R13, R16: 1 mm

(0.040")Wires, hydrostatic transmissionpedals R13, R16: 0 mm

English – 5

Technical data

Dimensions: Rider 16Length 2 000 mm/6,56 ftWidth 900 mm/2,95 ftHeight (over steering wheel) 1 060 mm/3,48 ftWeight 208 kg/459 lbTrack front 625 mm/2,05 ftTrack rear 625 mm/2,05 ftWheel base 860 mm/2,81 ftTyre size 16 x 6.50 x 8Air pressure 60 kPa/8,5 PSIMax. gradient 15°

Engine: Rider 16Manufacture Briggs & StrattonModel - 2002 28N707Model 2003 - 282H070110E1Power 11,4/15,5 kW/hpDisplacement 465 cm3/28,42 cu inchFuel min 85 octane unleadedTank capacity 7 litres/7,4 USqtOil mineral-2002 SAE 30 or 10W/30 class CD-CFOil synthetic 2003 - SAE 5W/30 or 10W/30 class SJ-CFOil mineral 2003 - or SAE 30 class SF-CCOil capacity 1,4 litres/1,5 USqt

Gearbox: Rider 16Manufacture Tuff Torq K 46Oil SAE 10W/30 class SF-CCOil capacity 2,2 litres/2,35 USqt

Electrical system Rider 16Type 12 V, negative earthBattery 12 V, 24 AhMain fuse Flat pin yoke 15 ASpark plug - 2002 Champion CJ8 or J8Spark plug 2003 - Champion QC12YCSpark plug gap 0,75 mm/0,030"

Mowing deck: Rear ejector 85 Rear ejector 97 Side ejector 97 Bio 90 Bio 103Cutting width 850 mm 970 mm 970 mm 900 mm 1 030 mmCutting height 40-90 mm 40-90 mm 40-80 mm 45-95 mm 45-95 mmBlade length 304 mm 350 mm 350 mm 480 mm 410 mmNoise level 100 dB(A) 100 dB(A) 100 dB(A) 100 dB(A) 100 dB(A)Weight 29,0 kg 48,0 kg 45,0 kg 39,0 kg 47,0 kgOverall width 950 mm 1 075 mm 1 300 mm 1 000 mm 1 115 mm

Mowing deck: BioClip 112 Combi 103 Combi 112Cutting width 1 200 mm 1 030 mm 1 220 mmCutting height 40-90 mm 45-95 mm 40-90 mmBlade length 420 mm 410 mm 420 mmNoise level 100 dB(A) 100 dB(A) 100 dB(A)Weight 50,0 kg 47,0 kg 52,0 kgOverall width 1 230 mm 1 115 mm 1 230 mm

6 – English

Control pointsMowing deck parallelism with cutting height in pos. 1: ± 2 mm ± 0,079"Cutting height control in pos. 1: Rider 11 = 37 ± 2 mm 1,46" ± 0,079"

Bio = 45 ± 2 mm 1,77" ± 0,079"Other = 40 ± 2 mm 1,57" ± 0,079"

Synchronous transmission belt tension Bio 103 version 1,Combi 103: Automatic adjustmentSynchronous transmission belt tension Bio 103 version 2 at10 N force, impression: 7 mm 1/4"Synchronous transmission belt tension Bio 90 at 7 N force,impression: 8 mm 5/16"Dist. between support plate and drive belt: 3–6 mm 1/8" - 1/4"Distance belt tensioner control leverand belt guide, disengaged unit: 17 ± 5 mm 7/16" ± 3/16"

Technical data

English – 7

Delivery and dealer servicePre-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 be12–15 kg (26,5-33 lb), or set to maximum lift if brush is to be fitted). (Only applies to BioClip andCombi.)

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 unitat 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.

8 – English

Delivery and dealer service

Dealer service

25 hours service

1. Change the engine oil on the side-valve engine(With high load and temperature on theoverhead-valve engine).

2. Clean/replace the airfilter’s pre-filter or oil-foamelement, if fitted. (More frequent intervals industy operating conditions.)

3. Clean/replace the air filter’s filter cartridge (25hours, 100 hours if pre-filter is fitted).(More frequent intervals in dusty operatingconditions.)

4. Check the tyre pressures.

5. Check the mower deck (visual inspection)

6. Lubricate the belt tensioner.

7. Lubricate joints and axles.

8. Adjust the brake (Rider 11).

9. Check the V-belts.

10. Clean the engine’s cooling air intake.

11. Check/clean the hydrostatic transmissiongear’s cooling fins.

50 hours service

1. Carry out 25 hours service as above.

2. Change engine oil.

3. Check the oil level in the transmission.(Rider 13, 16).

4. Check/adjust the parking brake.(Rider 13, 16).

5. Check/adjust the throttle wire.

6. Clean the cooling fins on the engine andtransmission.

7. Check/adjust the settings on the mowing deck.

8. Inspect the flame guard/spark arrester.(extra equipment)

100 hours service

1. Carry out 25 hours service as above.

2. Carry out 50 hours service as above.

3. Replace the pre-filter and filter cartridge in theair filter.

4. Replace the fuel filter in the pipe.

5. Clean/replace the spark plug.

300 hours service

1. Inspect the machine. Reach agreement with thecustomer about which additional work should becarried out.

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.

At least once a season

1. Change the engine oil (25/50 hours).

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.

6. Inspect the flame guard/spark arrester (extraequipment).

7. Clean/replace the spark plug.

8. Replace the fuel filter in the pipe.

9. Clean the cooling fins on the engine and trans-mission.

10. Check the valve clearance on the engine.

11. 300 hours service should be carried out by anauthorised service workshop.

English – 9

1) First change after 5 hours. Replace after every 25 hours with heavy loads and high temperatures. 2) Cleaning and replacing should becarried out more frequently in dusty conditions. 3) The machine should be lubricated twice a week if used daily. 4) Carried out byauthorised service workshop.

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

● = Described in this Workshop Manual.❍ = Not described in this Workshop Manual.▼ = Described in the Operating Instructions.

Maintenance interval inhours

• 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

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.

50 100

Page

25Maintenance

Dailymaintenancebeforestarting

Check the oil level in the engine 12 ●Check the engine’s cooling air intake - ▼Check the fuel pump’s air filter - ▼Check the steering wires 29 ●Check the brakes 31 ●Check the battery 11 ●Check the safety system 61 ●Check the screws and nuts - ❍Check if there is any fuel or oil leakage - ❍Clean around the silencerChange the engine oil side-valve engine 1) 28 ● 1)

Change the engine oil overhead-valve engine 1) 28 ● 1) ● 1)

Clean the air filter’s pre-filter 2) - ▼Check the mower deck 47 ●Check the tyre pressures (60 kPa) 13 ●Lubricate the belt tensioner 3) - ▼Lubricate joints and axles 3) - ▼Adjust the brakes, Rider 11 31 ●Check the V-belts - ❍Check the transmission’s cooling fins,Rider 13 and Rider 16 - ❍Check the transmission’s oil level,Rider 13 and Rider 16 44 ●Adjust the brakes, Rider 13 and Rider 16 31 ●Check and adjust the throttle wire 26 ●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 ▼

Delivery and dealer service

10 – English

Delivery measuresTo our dealer

Well-performed delivery service is the first step to afunctioning aftermarket. A functioning aftermarket isin everybody’s interest:

• The customer is satisfied with their Rider. He/sheknows where to go to get help if problems occur.

• You have a regular customer, who recommendsyou and your company to other potentialcustomers.

• In this way we build our trademark together, andtake joint responsibility for our products andcustomers.

Make sure the paper work is in good order.

Fill in the warranty and delivery documents etc. andmake sure that the customer gets the rightOperating Instructions for their machine.

Keep a customer register so that in future you cansee which machines customers have, including allthe serial numbers. This register will benefit youwhen ordering spare parts and for future marketing.

In conjunction with the delivery you should alsogive the customer the information required toensure the safe handling and care of their machine.Pay special attention to informing the customerabout:

• Safety instructions.

• Controls. Emphasise that one does not push inthe reversing lock on Rider 11 when engagingthe neutral position (start lock function).

• Checking of oil levels. Replenishing of oil, andwhich type of oil is required.

• First oil change after the running-in period.

• The need for, and advantages of, following theservice schedule and regularly handing in theirRider for service.

• Which fuel should be used.

• Mowing tips to get good results. Applications forBioClip.

• Which accessories are available for the type ofRider in question.

• Warranty regulations.

• Your company, and who the customer can turn toif problems occur.

Packaging and unpacking

On delivery from the factory the Rider is normallypacked in special packaging. This consists of awooden bottom board with a top part consisting ofheavy-duty cardboard held together by plastic film.

The bottom board is provided with pallet feet andthe goods can be handled with a normal fork-lifttruck from the long side. To keep the goods as levelas possible, two men should help the truck driver.Lift the machine and drive the truck carefully.

Undo the plastic film and lift off the cardboardsections. The Rider is placed on the bottom board,braked and secured with wooden blocks.Check that there is no transport damage afterremoving the packaging. Report any damage to thetransport company in accordance with the standardroutines.

The packaging should not be returned.

Parts enclosed in packaging, Rider

The following parts are enclosed in the transport box:

Number Part1 Steering wheel with steering column tube1 Socket head cap screw steering column

tube1 Lock nut steering column tube2 Support rollers (BioClip)6 Battery plugs1 Operating Instructions1 Operating and Maintenance

Instructions Briggs & Stratton4 Wheels (certain markets)

WARNING!Handle the transport boxcarefully. Keep the goods as levelas possible. Use long forks whenlifting from the short side.

Lifting from the short side requires long pallet forks,see diagram.

English – 11

WARNING!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.

Battery

The battery is delivered dry-charged from thefactory. The cells are fitted with sealing film. Thebattery plugs are packed in a plastic bag.

• Fill the battery cells slowly with battery acid tothe max. level mark on the battery container.

• Wait 20 minutes and top up with battery acid ifnecessary.

• Charge the battery with 12 V max. 6 A for 4hours.

• Check the electrolyte level and top up ifnecessary with distilled water to the top levelmarks on the battery container.

Put the battery in position.

Connect the battery with the screws and nuts fittedon the battery. Brace the screws when fitting toavoid exposing the terminals to strain.

• Black cable is connected to -.

• Red cable is connected to +.

Make sure the cables do not rub against thematerial.

Fit the cover over the battery and tighten the strap.

Delivery measures

12 – English

ADD FULL

ADD FULL

Steering wheel

• Fit the steering wheel with the steering columntube on the steering shaft.

• Screw in the socket head cap screw so that itgoes in the slot on the steering shaft. Work onthe steering wheel and tighten the socket headcap 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 thefactory for transport reasons. Fit the tow plate onthe rear bumper as shown in the diagram.

Check the oil level in the engine

Check the oil level in the engine when the Riderstands horizontal with the engine switched off.

Lift up the engine cover.

Loosen the dipstick and pull it out. Wipe thedipstick and replace it.

The dipstick should be screwed fully down.

Loosen the dipstick and pull it out again. Check theoil level.

The oil level should lie between the markings onthe 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 fitsin.

Fill the oil slowly. Tighten the dipstick correctlybefore starting the engine. Start and run the engineat idling speed for approx. 30 seconds. Turn off theengine. Wait 30 seconds and check oil level. Ifnecessary fill so that the oil comes up to the”FULL” mark on the dipstick.

Use engine oil SAE 30 or SAE 10W/30, class SF-CC on all machines up to 2002 models as well aslater models of Rider 11 and 13 with side-valveengines.

From 2003 Rider 16 models use first and foremostsynthetic engine oil class SJ-CF 5W/30 or 10W/30,otherwise SAE30, class SF-CC.

The engine takes a total of 1.4 litres/1,5 USqt of oil.

Delivery measures

Rider 16, 2003 model

English – 13

R I D E R 8 5 0

R I DE R

8 5 0

Check that there is oil in the transmission’s oil tank.Fill if necessary with engine oil SAE 10W/30 (classSF–CC).

Wheels

Fit the wheels (certain markets). The tyre pressuresshould be 60 kPa (0,6 kp/cm2 /8,5 PSI) on all thewheels.To improve the driving capacity the pressure in theback 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).

Checking the oil level in thetransmission

(Not Rider 11)

Remove the transmission cover. Loosen bothscrews (one on each side) and lift off thetransmission cover.

Checking and adjusting of the mowingdeck’s ground pressure and parallelism

Carried out after checking the tyre pressures. Seerespective sections in this Workshop Manual.

Delivery measures

IMPORTANT INFORMATION

Check and top up with oil after each testdrive. The oil level will drop if there areair pockets in the transmission.

IMPORTANT INFORMATION

Different pressures in the front tyres willcause the blades to cut the grass atdifferent heights.

14 – English

2 1

WARNING!Petrol is highly inflammable.Observe caution and fill up withpetrol outdoors.

Test running

Fill up with petrol. The engine should be run on thelowest 85 octane unleaded petrol (no oil admixture).It can be beneficial to use environmentally adaptedalkylate petrol. Do not use petrol that containsmethanol.

WARNING!Never run the engine indoors, orin enclosed or poorly ventilatedareas. Engine exhaust fumescontain poisonous carbon mon-oxide.

Start the engine.

Check that the machine is in neutral and standingon 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 anyof the hydrostatic transmission pedals are activated(Rider 13, 16) or when the gear stick is not inneutral (Rider 11).

Check that the engine stops when getting up fromthe seat when any of the hydrostatic transmissionpedals are activated (Rider 13, 16) or when thegear stick is not in neutral (Rider 11).

Check that the starter does not function when themowing unit is in its lower position.

Delivery measures

English – 15

Check the function of the mowing deck and thatthere is no abnormal noise.

The mowing height can be regulated in 9 differentpositions with the lever.

Deck with rear ejector, 40-90 mm,mowing height(1 9/16" - 3 9/16")

BioClip- and Combi- deck, 45-95 mm,mowing height(1 3/4" - 3 3/4")

Speed regulator

Check that the engine’s maximum speed isregulated at:

Rider 11 2 900 - 3 100 rpmRider 13 2 900 - 3 100 rpmRider 16 2 900 - 3 100 rpmRider 16 2003 - 2 800 - 3 000 rpm

Administration

Fill in the sales certificate and customer registeretc.

Do not forget to enter the manufacturing number onpage 3 of the operator’s manual and to verify thedelivery service in the service log.

Delivery measures

16 – English

R I D E R 8 5 0

R I D E R

8 5 0

R I D E R 8 5 0

R I DE R

8 5 0R I D

E R

8 5 0

R I DE R

8 5 0

Design and functionGeneral

Husqvarna Riders is a series of ride-on mowerswith a large capacity. It is available in several sizes,from the smallest Rider 11 to the largest RiderProFlex 21.

This manual deals with the slightly smallermachines, the larger Pro-and ProFlex machinescan be found in a separate manual. All Riders havearticulated steering in order to easily cut aroundtrees and other obstacles. Moreover, they all havefront-mounted mowing decks for controlled cutting

and for 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 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 Bio.

Rider 16 is available with different mowing decks.Bak 97 (rear ejection)Sido 97 (side ejection)BioClip 90Combi 103 or Combi 112.Earlier versions even BioClip 103 or BioClip 112

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English – 17

Design and function

Serial number

The serial number can be found on the printedplate attached to the front, left-hand side under theseat. 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 whenordering spare parts.

On older machines the engine’s manufacturingnumber is punched on a plate that is riveted to thefan cover. On newer engines in Rider 16 the data ispunched 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 thebarcode decal located on the front of the housingon the left-hand drive axle:

• The type designation is stated above thebarcode and starts with the letter “K”.

• The serial number is stated above the barcodeand has the prefix “s/n”.

• The manufacturer’s type number is stated underthe barcode and has the prefix “p/n”.

State the type designation and serial number whenordering spare parts.

18 – English

Design and function

Engine

These Husqvarna Riders have single-cylinder, air-cooled engines from Briggs & Stratton.

More intricate engine repairs are not described inthis workshop handbook, these can instead beread in Briggs & Stratton's own handbooks whichcontain detailed information about adjusting andrepairing the engines. The handbooks can beordered from an authorized service workshop.

Rider 11 and Rider 13 are fitted with a singlecylinder side-valve engine of 10.5 resp. 12.5 hpwith splash lubrication. Rider 16 is fitted with asingle cylinder overhead-valve engine of 15.5 hp. Anew overhead-valve engine with AVS (Anti Vibra-tion System) has been introduced from 2003models.

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 28B707Rider 13 286707Rider 16 -2002 28N707Rider 16 2003- 282H070110

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

Side-valve engine Rider 11 and 13 Overhead-valve engine Rider 16 (2003-)

English – 19

Design and function

Steering

All the ride-on mowers in the Rider series havearticulated steering. The steering force from thesteering wheel is transferred to the rear section viawires 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 cm(8"-12")depending on which model is chosen.

Outline diagram of the articulated steering function.

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