Husqvarna Rider 18 ProFlex Workshop Manual
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Husqvarna Rider 18 ProFlex Workshop Manual

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Rider 20 ProFlex
Workshop Manual
101 90 99-26

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Summary of Contents for Husqvarna Rider 18 ProFlex

  • Page 1 Rider 18 ProFlex Rider 20 ProFlex Workshop Manual 101 90 99-26...
  • Page 2 – English...

  • Page 3: Table Of Contents

    Workshop manual Rider 18 ProFlex Rider 20 ProFlex Contents Safety regulations ..........2 Installation of swing axle ........ 29 General instructions ......... 2 Removal/installation of hydrostatic Special instructions .......... 2 transmission ........... 31 Special tools ............3 Replacing hydrostatic transmission axle Technical data .............

  • Page 4: Safety Regulations

    Safety regulations Special instructions General instructions The fuel used in the ride-on mower has the The workshop handbook is written for personnel who following hazardous characteristics: are assumed to have general ride-on mower reparation and service know-how. • Toxic fluid and fumes •...

  • Page 5: Special Tools

    Special tools The following special tools are used when working on the ride-on mower. 506 56 76-01 506 57 00-01 506 66 48-01 506 79 06-01 506 89 92-01 506 89 93-01 506 56 76-01 Ball-ended Allen key 5/16" to unscrew the engine pulley socket head cap screw (Kawazaki). 506 66 48-01 Puller for engine pulley.

  • Page 6: Technical Data

    Technical data Dimensions: Rider 18 ProFlex Rider 20 ProFlex Length, base machine 2 030 mm 2 030 mm Width, base machine 900 mm 900 mm Height 1 100 mm 1 100 mm Kerb weight, base machine 272 kg 334 kg...

  • Page 7: Mowing Deck

    Technical data Mowing deck Rear ejector 120 BioClip 103 Cutting width 1 200 mm 1 030 mm Cutting heights 7 settings, 40-100 mm 7 settings, 45-105 mm Blade length 440 mm 410 mm Sound level 100 dB(A) 100 dB(A) Width 1 305 mm 1 115 mm Weight...

  • Page 8: Delivery And Dealer Service

    Delivery and dealer service Pre-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 be 12–15 kg, or set to maximum lift if brush is to be fitted).
  • Page 9 Delivery and dealer service Dealer service 300 hour service 25 hour service 1. Change engine oil. 1. Change engine oil (50 hours). 2. Replace air filter (pre-filter). (25 hours if operating conditions severe). 3. Replace air filter (paper). 2. Clean/replace air pre-filter or oil-foam element if 4.

  • Page 10: Maintenance Schedule

    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. Maintenance interval in Maintenance Page Daily main- At least Weekly...
  • Page 11 Maintenance schedule Maintenance interval in Maintenance Page Daily main- At least Weekly hours tenance once a main- before after year tenance Lubricate throttle control Lubricate choke control Smörj styrkedja i ramtunnel. Lubricate steering chain inside frame tunnel Clean engine cooling air intake Clean pre-filter or oil-foam element, if fitted Clean air filter cartridge...

  • Page 12: Delivery Measures

    Delivery measures Fastening steering wheel Installing wheel weights, Rider 20 ProFlex Wheel weights are supplied with the Rider 20 ProFlex; these should be installed by the dealer. Refilling battery acid • Fasten the steering wheel with steering column on the steering shaft. •...

  • Page 13: Design And Function

    Moreover, they all have front- mounted mowing decks for controlled cutting and for best possible cutting results. Rider 18 ProFlex and Rider 20 ProFlex can be equipped with 4 different mowing decks. Bak 97 or 120 (rear ejection) Sido 97 (side ejection) Bio 103 English –...

  • Page 14: Engine

    If other parts are used, the guarantee shall no longer be valid. Rider 18 ProFlex and Rider 20 ProFlex have two- cylinder overhead valve engines with pressure lubrication and a separate oil filter. These engines...

  • Page 15: Steering

    Design and function Steering Thanks to the articulated steering, the turning All the ride-on mowers in Husqvarna's Rider-series radius is extremely small, the uncut circle when the have articulated steering. The steering force from steering wheel is fully turned is just 20–30 cm the steering wheel is transferred to the rear section depending on which model is chosen.

  • Page 16: Driving

    Design and function Driving The Rider 20 ProFlex also has a differential lock Rider 18 ProFlex and Rider 20 ProFlex are equipped with hydrostatic transmission which that allows the rear wheels to be driven provides the driver complete control. Continuously independently.

  • Page 17: Mowing Deck

    The entire Rider series is equipped with front- mounted mowing decks to ensure effective cutting even in confined areas. Rider 18 ProFlex and rider 20 ProFlex can be delivered with a choice of mowing decks, with rear ejection, side ejection or Bio.

  • Page 18: Reparation Instructions

    Reparation instructions Removing engine Remove the battery's fixing belt. Remove the safety Mark up and remove the engine's electrical guard and remove the cable connections. Then, lift connections. out the battery. Remove the cable which leads from the starter relay to the start motor. Remove the clamps which hold the throttle and choke wires.
  • Page 19 Reparation instructions Remove the fuel line hose clamp from the fuel pump and pull the fuel line downwards. Remove the exhaust pipe clamps and the silencer’s four retaining bolts. Then remove the silencer, exhaust pipe and the accompanying pulse air valve. Remove the cover plate over the silencer (two screws on either side of the silencer) and lift out the plate.

  • Page 20: Replacing Engine

    Reparation instructions Replacing engine Insert tool no. 506 79 06-01 into the centre of the engine pulley. Unscrew and remove the socket IMPORTANT INFORMATION head cap screw which holds the pulley and the When installing the engine, it is important engine axle together.
  • Page 21 Reparation instructions Position the pulley with tool no. 506 79 06-01 and tighten it with moment (80 Nm). Use tool no. 506 89 Set the throttle control to full throttle and the choke 92-01 as a holder-on. control to full choke. Pull the wires' outer cover as far as possible to the right and tighten the clamp screws.
  • Page 22 Reparation instructions Securely fasten the protective plate over the silencer, two screws on each side of the silencer. Tightly screw the cable from the start motor to the starter relay. Lift the battery into place and fasten the cable connections and safety guard. Tighten the catching belt.

  • Page 23: Changing Engine Oil

    Reparation instructions Checking and adjusting steering wires Changing the oil 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). WARNING! Engine oil can be very hot if it is drained off directly after the engine...

  • Page 24: Replacing Steering Wires

    Reparation instructions Replacing steering wires Remove the two steering wheel rod carriers (2). Release the steering wires' rear attachment (1). Unscrew the bolt (5) from the bottom end of the Release the steering wires' front attachment (2) at steering column. the steering transmission chain (6) and pull the steering wires out throught the frame.

  • Page 25: Removal/Installation Of Wire Wheel

    To install the wire wheel, the reverse order is applied. After installation, check the wire tension (see “Checking and adjusting steering wires”). A complete installation kit, including wire pulley, bushing and bearing, can be purchased for the Rider 18 ProFlex and Rider 20 ProFlex. English –...

  • Page 26: Checking And Adjusting Brake Wire

    Reparation instructions Checking and adjusting throttle control Checking and adjusting brake wire The photo shows the Rider 18 ProFlex. On the Rider 20 The photo shows the Rider 18 ProFlex. ProFlex the brake wire is located on the right-hand side.

  • Page 27: Checking And Adjusting Differential Lock

    Reparation instructions Checking and adjusting differential lock Check and adjust the differential lock (on the left- hand side) as follows: 1. Make sure the differential lock is disengaged, with the pedal fully raised. 2. Adjust so there is zero play between the outer cable and the adjuster screw, using the two nuts on the adjuster screw.

  • Page 28: Replacing Articulated Steering Bearing

    • Undo the nuts on the brake wire and prise the wire off the brake arm. • Disconnect the wire from the differential lock, see “Removal/installation of hydrostatic transmis- Rider 18 ProFlex sion”. • Release the tensioning wheel spring (1). • Disconnect the brake wire tensioning spring (2).
  • Page 29 Reparation instructions Detach the articulation spring. This spring is strongly tensioned and should be secured with tool • Take the upper bearing out upwards, if it does not no. 506 89 93-01 before the nut is removed. come out easily, it should be knocked out from below.

  • Page 30: Removal Of Swing Axle

    • Undo the brake wire (3) nuts and prise the wire off the brake arm. • Disconnect the wire from the differential lock, see “Removal/installation of hydrostatic transmis- Rider 18 ProFlex sion”. • Remove the circlip and washer from the swing arm (4) and pull out the rear frame.

  • Page 31: Replacing Bushings

    Reparation instructions Replacing bushings Installation of swing axle Once the swing axle has been removed the bushings fitted to the rear frame must be replaced. They can be removed with a standard drift. Fit the new bushings with the aid of the standard drift, making sure that the channels in the bushings run horizontally.

  • Page 32: Removal/Installation Of Hydrostatic

    Reparation instructions Rider 18 ProFlex Check that the controls and wires are correctly adjusted (see “Checking and adjusting brake wire”, • Attach a washer and circlip onto the swing axle “Checking and adjusting speed control wire” and (1). “Checking and adjusting differential lock”.

  • Page 33: Transmission

    Reparation instructions Removing/installation of hydrostatic Rider 18 ProFlex transmission • Detach the drive belt (1) and release the brake wire spring (2). • Disconnect the brake wire (3) and dismantle the throttle control (4). • Block-up the machine in front of the rear frame and remove the back wheels.
  • Page 34 Reparation instructions Rider 18 ProFlex Disconnect the contact (1) and take off the hose Insert a garage jack under the hydrostatic transmis- (2). Ensure that the oil does not run out, e.g. tie up sion and loosen its five holder screws.

  • Page 35: Replacing Hydrostatic Transmission Axle Sealing Collars

    Reparation instructions Replacing hydrostatic transmission axle sealing collars • Wrap insulation tape around the input axle to protect the new sealing collar from damage to Take the hydrostatic transmission out of the ride- splines and grooves. on mower, as indicated in previous description Start by wrapping from the bottom and continue (see “Removal/installation of hydrostatic transmis- upwards over the axle until the entire axle is...

  • Page 36: Outgoing Axles

    Reparation instructions Sealing collar replacement - outgoing axles • Place the sealing collar on the axle, with the metal spring inwards, and press it in carefully . • Clean the outgoing axle and the area around the sealing collar of all dirt and rust. IMPORTANT INFORMATION •...

  • Page 37: Replacing Hydrostatic Transmission Wire

    Reparation instructions Replacing hydrostatic transmission wire Removal of hydrostatic transmission wire All the photos show the Rider 18 ProFlex. The procedure is the same for the Rider 20 ProFlex, on which the hydrostatic wire is attached to the left- hand side of the rear frame.
  • Page 38 Reparation instructions Unscrew both ball joints from the hydrostatic Lift off the ball joint and pull out the wire. transmission wire. Remove the entire hydrostatic transmission wire. Lift out the transmission wire with the linkage attached. – English...

  • Page 39: Refitting Hydrostatic Transmission Wire

    Reparation instructions Refitting hydrostatic transmission wire Push the linkage into the front slot in the tunnel. Screw the front ball joint onto the new transmission wire and tighten the lock nut. Bolt the transmission wire-retaining clip back in place. Press the ball joint onto its ball and refit the wire clip.
  • Page 40 Reparation instructions Run the transmission wire alongside the other cables. Fully depress the hydrostatic transmission pedal and secure it with a cable tie to set the correct wire tension for maximum speed. Adjust the ball joint and press it onto the ball, with the control arm pushed in as far as it will go.
  • Page 41 Reparation instructions Secure the transmission wire with a cable tie. Tighten the lock nut on the transmission wire front ball joint. Refit the frame plate using the four screws. English –...

  • Page 42: Hydrostatic Transmission Brake

    Reparation instructions Hydrostatic transmission brake Installation of brake only Rider 18 ProFlex Removal of brake • Put the brake drum on the axle and attach the circlip. • Place blocks in front of and behind the wheels so that the ride-on mower can not roll. Then, release •...

  • Page 43: Adjustment Of Brake

    Reparation instructions Adjustment of brake • Firmly attach the brake's connecting rod in the hole on the brake lever and assemble the was- Apply the parking brake and check that the her and spring clip. transmission's brake arm is pulled as far forwards •...

  • Page 44: Ineffective Brake Power

    Reparation instructions Bleeding the hydrostatic transmission oil system Adjust the gap by: • Releasing the parking brake. • Loosening the connecting rod by removing the • Check the hydrostatic transmission oil level. spring clip and the washer. • Turning the connecting rod in or out of the spring •...

  • Page 45: Adjustment Of Transmission Neutral Position

    Reparation instructions For immediate bleeding of the oil system, fill new oil directly into the transmission (1) and, at the same time, pull the pump round by hand with the brake drum (2). Adjustment of transmission neutral position Bleed the hydrostatic transmission oil system. Lift the back of the ride-on mower up so that the wheels are off the ground and place blocks under the machine.
  • Page 46 Reparation instructions 1 = Axle 1 = Axle 2 = Lock nut 2 = Lock nut If the drive shafts do not rotate backwards despite • Slowly turn the axle anti-clockwise until the drive the hexagonal axle having rotated a full turn, the shafts stop rotating backwards and make a mark neutral position is to be adjusted in the following on the transmission housing (RS).

  • Page 47: Transmission Maintenance

    Reparation instructions Transmission maintenance Transmission K 66 holds 2,5 litres (SAE10W/30 Oil change engine oil, class CD–SF). 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.

  • Page 48: Removal Of Belt

    Reparation instructions Assembling the belt Removing the belt Starting point when dismantling the belt: • No unit attached to the Rider. • The front of the belt is hung around the hook guard’s handle. For a description of how to prise the front part of the belt off the front pulley see steps 2–3 under “Remo- ving the cutting unit”.

  • Page 49: Checking And Adjusting Mower Deck Ground Pressure

    Reparation instructions Checking and adjusting mower deck Checking and adjusting mower deck ground pressure parallelism Place a set of bathroom scales under the mower Place the ride-on mower on an even surface and deck's frame (front edge) so that the deck rests on measure the distance between the ground and the the scales.

  • Page 50: Adjusting Cutting Height Area

    Reparation instructions Adjusting cutting height area Adjusting cutting height • Remove the plastic cover from the right-hand side. • 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.

  • Page 51: Removal Of Mowing Deck

    Reparation instructions Removal of mowing deck • Place the Rider on a level surface. • Apply the brakes by pressing down the pedal and lock using the pushbutton. • Lift up the unit using the lifting lever. • Remove the nose. WARNING! Wear eye protection and work Loosen the height setting arm by moving the rear...

  • Page 52: Replacing Mowing Deck Belts

    Reparation instructions • Pull the handle so that the hook guard locks. • Loosen the nuts on the eccentric plate and turn this away. • Check that the catch (A) is in its loaded position. • Loosen the four nuts (see diagram) holding the •...

  • Page 53: Belt Replacement On Mowing Deck With Side- Or Rear Discharge

    Reparation instructions Belt replacement on mowing deck with side- or rear discharge • Tension the belt by turning the eccentric adjuster on top of the cutting hood. Tighten the nut. • Remove the cutting unit. • Tighten all nuts on the blade bearings. •...

  • Page 54: Removal Of Blades With Bearings

    Reparation instructions Removal of blades with bearings WARNING! When working with the mowing deck, use protective glasses and gloves. Unscrew the four screws which hold the blade bearing and remove the entire bearing packet from the mowing deck. • Release the spring which tensions the V-belt and twist off the belt.

  • Page 55: Grinding And Balancing Of Blades

    The Rider 20 ProFlex set does not include an axle. Model Outer bearing Middle bearing Rider 18 ProFlex 506 75 11-05 506 75 11-04 Rider 20 ProFlex 506 75 11-05 506 75 11-03...

  • Page 56: Pulse Air Valve Intake Filter

    Pulse air valve intake filter Cleaning the filter • Loosen the rubber strap under the seat and lift off the engine hood (Rider 18 ProFlex). Tip the seat up, open the engine hood and tip it forwards (Rider 20 ProFlex).

  • Page 57: Trouble Shooting Schedule

    Trouble shooting shedule Problem Procedure Engine will not start. • Fuel tank empty. • Plugs defective. • Plug connections defective. • Dirt in carburettor or fuel pipe. Starter does not pull round engine. • Battery flat. • Bad contact between cables and battery terminals. •...

  • Page 58: Electrical System

    Electrical system 1. Microswitch, hydrostat Explanation of colour abbreviations in wiring diagram. RD = Red 2. Microswitch, cutting unit BL = Blue 3. Microswitch, seat 4. Ignition lock VT = White SV = Black 5. Counter 6. Start relay GL = Yellow GR = Grey 7.
  • Page 59 English –...
  • Page 60 ´*3)|¶6O¨ 2000W25...

This manual is also suitable for:

Rider 20 proflex

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