Invacare® Pegasus SERVICE MANUAL
Contents
1. Replacing operating console Replacing bend speed reducer Replacing the potentiometer Replacing front headlight lamp Replacing the front direction indicators Replacing centre brake light Replacing rear lights direction indicators Replacing the electronics module Updating software 33 35 37 39 41 42 44 46 49 1 1 1 2 gt Bs Introduction General information e All maintenance and overhaul work must be carried out in accordance with these repair instructions e Please observe all safety instructions e Information about operation or about general maintenance and care work should be taken from the electric vehicle Operating Manual e You can find information about ordering spare parts in the spare parts catalogue e Use only genuine Invacare spare parts Using parts from any other source will void the warranty e We reserve the right to make any alterations on the grounds of technical improvements e The electric vehicle may only be maintained and overhauled by qualified personnel e The minimum requirement for service technicians is relevant training such as in the cycle or orthopaedic mechanics fields or suitably long term job experience Experience and knowledge of electrical measuring devices Multimeter is also a requirement Special Invacare training sessions are recommended e Alterations to the electric vehicle which occur as a result of incorrectly or improperly executed m2. 3 Battery voltage too Stops driving e The battery voltage is too high If the high battery charger is connected disconnect it from the Scooter The electronic system charges the batteries when running downhill and when braking This fault is caused when the battery voltage becomes too high during this process Switch the Scooter off and on again 16 Blink code Fault Power time exceeded Consequence for the Scooter Stops driving Comments The maximum current was exceeded over too long a period probably because the motor was overloaded or has been working against an immovable resistance Switch the scooter off wait a few minutes and then switch on again The electronic system has determined a motor short circuit Check the wiring harness for short circuit and check the motor Contact your Invacare dealer Brake failure Stops driving Ensure that the disconnection lever is pressed in There is a defect in the braking coil or in the cabling Check the magnetic brake and cabling for open or short circuited circuitry Contact your Invacare dealer No neutral position when switching Scooter on Stops driving Drive lever is not in neutral when the keyswitch was turned Put the drive lever in neutral turn the power off and then turn on again It may be necessary to recalibrate the drive lever Contact your Invacare dealer Fault in speed potentiomete
3. 3 wheel version e Remove direction indicator screw 1 e Disconnect direction indicator cable 2 from wiring harness Plug is located behind rear steering column cladding see chapter entitled Replacing steering column e Replace direction indicator e Reassembly of the direction indicators takes place in reverse order e Check functions e 4 wheel version e Remove steering column cladding and steering column see chapter entitled Replacing steering column e Remove chassis bolts and fold chassis upwards e Remove direction indicator screw 1 on chassis e Disconnect direction indicator cable 2 from wiring harness e Remove screws 3 on indicator glass e Remove indicator glass e Loosen screws 4 on orange coloured cap 5 and remove cap e Replace lightbulb e Reassembly of the direction indicators takes place in reverse order e Check functions 41 42 6 15 yg Replacing centre brake light CAUTION Danger of electric shock Interrupt the power supply by removing the battery plugs before you start work on electric components NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence Requirements e Phillips screwdriver Remove the seat Remove motor cover Disconnect both battery plugs 1 Disconnect the plug 4 Remove the bolt 1
4. When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence NOTE The drive motor needs to be removed before you can replace the left hand shock absorber If the right hand shock absorber is to be replaced you do not need to remove the drive motor Requirements e Open spanner 10 mm Open spanner 17 mm oblique pliers Rubber hammer Phillips screwdriver 2 Allen keys 5m Supporting wooden block e Left hand shock absorber e Remove drive motor see chapter entitled Replacing the drive motor on page 17 e Right hand shock absorber e Dismantle wheel see operating manual e Dismantle wheel cover see chapter entitled Replacing the drive motor on page 17 e Loosen the top bolt 1 on shock absorber e Loosen the bottom bolt 2 on shock absorber e Replace shock absorber e Use setting screw 3 to set the spring hardness Reassembly of the shock absorber takes place in reverse order Check function trial run 23 o uo D p Cie Replacing front axle CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence NOTE The front axle can only be replaced on the 3 wheel version The 4 whee
5. apply to dry and grease free threads Thread M4 M5 M6 M8 M10 M12 M14 M16 Tightening torque 3 NM 6Nm 10Nm 25Nm 49Nm 80 Nm 120 Nm 180 Nm in Nm 10 Caution All other nuts or plastic connectors not noted here must be tightened FINGERTIGHT 11 4 Service 1x annually Welded seams e Tighten screws fixings and replace parts if upholstery damaged Frsines e Check fixings e Tighten screws chassis welded seams and replace parts if battery battery mounting damaged mounting e Check battery fixing straps Wheel Check drive wheels e Tighten hub nuts suspension and for tight fit replace if wheels necessary Check steering e Adjust replace wheels for tight fit float and side p Prane if damaged manual Check ooo and Tighten screws steering linkage Check tracking and steering in pushing mode brake absorber shock absorber Drive units e Check functions in e Replace motor if coupling drive and push necessary mech nism modes e Tighten screws e Check clutch nuts adjust or mechanism replace Check function e Replace lightbulbs Lighting Check cable plug or cable connections Batteries Check batteries for e Replace batteries See operating damage manual Check battery e charge batteries See operating voltage manual e Check contacts and e Clean contacts terminals and terminals Drive Status display Evaluate blinking electronics flashing code Fixing Tighte
6. cable is short circuited e Interrupt the power supply by removing the battery plugs before you start work on the electronic system NOTE The plugs on the operating console cannot be wrongly connected because all plugs have a different size and only fit in one socket Requirements e Phillips screwdriver e Remove the seat e Remove motor cover e Separate battery cable e Remove screws 1 below operating console e Remove operating console and fold upwards e Remove screws 3 on drive lever 2 and remove drive lever e Disconnect plug from operating console circuit board e Replace operating console e Reconnect plug with circuit board on new operating console 33 34 Reassembly of the operating console takes place in reverse order Check all functions trial run 6 11 VW Replacing bend speed reducer CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence Requirements e Phillips screwdriver e Open spanner 32 mm e Remove the seat e Remove motor cover e Separate battery cable e Remove front and rear steering column cladding steering column and housing See chapter entitled Replacing steering column e Replacing sensors 5 without mounting e Loosen screw
7. on the rear panelling Lift the rear panelling upwards Remove screws 1 on brake light Replace brake light Reassembly of the brake light takes place in reverse order Check functions trial run 43 44 D a Se o gt Replacing rear lights direction indicators CAUTION Danger of electric shock e Interrupt the power supply by removing the battery plugs before you start work on electric components NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence Requirements e Phillips screwdriver e Remove the seat e Remove motor cover e Disconnect both battery plugs 1 e Remove the bolt 1 on the rear panelling e Liftthe rear panelling upwards e Remove screws 1 on rear light Remove rear light Remove screws 1 on rear light glass Remove rear light glass 1 Replace lightbulb 2 Reassembly of the rear light direction indicator takes place in reverse order Check function 45 gt P PP OD VW 46 Replacing the electronics module CAUTION If the scooter is supported by the support wheels it will no longer be braked by the motor brake The scooter can roll away out of control e Place the scooter rear frame on a piece of supporting wood before removing the wheels CAUTION Burn and scald hazard if
8. part of the frame so that the front wheel is no longer touching the floor e 3 wheel version e Slacken brake cable see chapter entitled Replacing brake cables e Disconnect brake cable at wheel e Loosen axle bolts 1 simultaneously on both sides e Pull front axle slowly out e 4 wheel version e Slacken both brake cables e Disconnect brake cable at affected wheel e Loosen wheel bolt e Pull wheel and brake off shaft Pull brake out of brake drum Replace brake lining or complete brake Reassemble wheel and brake Push wheel and brake onto shaft or push axle through Operate brake and hold tighten axle bolts at same time Reassembly of the brake takes place in reverse order Adjust braking force on wheel using brake lever setting screw Check braking function while pushing 29 30 Replacing brake cable CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence NOTE You do NOT need to remove the wheel to replace the brake cable Requirements e Open spanner 10 mm e Phillips screwdriver e Decrease the brake tension on the wheel using the setting screw 1 e Disconnect the brake cable at the wheel 2 e Disconnect brake cable at steering wheel brake lever e Route th
9. power cable is short circuited e Interrupt the power supply by removing the battery plugs before you start work on the electronic system CAUTION Any modifications made to the drive program can affect the drive behaviour and tipping stability e Changes to the drive program may only be carried out by trained Invacare specialist dealers e Invacare can only provide a guarantee for safe driving especially tipping stability for unmodified standard drive programs CAUTION Accident hazard e Secure the scooter against rolling away NOTE The electronic system is supplied with a standard drive program If you have carried out customer specific modifications to the drive program you will have to make these changes again after installing the new electronics module NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence NOTE The plugs on the electronic module cannot be wrongly connected because all plugs have a different size and only fit in one socket Requirements e Open spanner 10 mm Open spanner 17 mm Rubber hammer Phillips screwdriver Supporting wooden block To adapt the drive program programming software or hand programming device and electronics system installation manual available from Invacare Secure the scooter against rolling away Place supporting wooden bloc
10. Invacare Pegasus SERVICE MANUAL These instructions contain information about testing work repair work Edition 11 04 08 NB Limited models available in Australia and New Zealand Invacare Australia 1 Lenton Place PO Box 5002 North Rocks NSW 2151 Australia Fax WWW 61 1800 460 460 61 2 8839 5311 sales invacare com au www invacare com au Invacare New Zealand 4 Westfield Place PO Box 62 124 Mt Wellington Auckland New Zealand Fax WWW 64 0508 468 222 64 0508 807 788 www invacare co nz Table of Contents Chapter 1 INTRODUCTION 1 1 General information 1 2 Notes on transport 1 3 Important symbols in this manual 2 SAFETY AND ASSEMBLY INSTRUCTIONS 2 1 Before any inspection or repair work 2 2 General safety information and notes on assembly disassembly 3 TIGHTENING TORQUES 4 SERVICE PLAN 1X ANNUALLY 5 OPERATIONAL FAULTS 5 1 Operational faults 5 1 1 Drive fault diagnosis 5 2 Error Codes and Diagnostic Codes 6 REPAIR WORK 6 1 General warning information on installation work 6 2 Replacing the drive motor 6 3 Replacing wheel suspension 6 4 Replacing shock absorber 6 5 Replacing front axle 6 6 Replacing steering column fork 3 wheel 6 7 Replacing brakes 6 8 Replacing brake cable 6 9 Replacing steering linkage steering rod 11 12 14 14 14 15 17 17 17 20 22 24 25 28 30 31 Page 6 10 6 11 6 12 6 13 6 14 6 15 6 16 6 17 6 18
11. aintenance or overhaul work lead to the exclusion of all liability on the part of INVACARE e If you have any problems or questions please contact INVACARE SERVICE Notes on transport e If the electric vehicle has to be shipped back to the manufacturer for major repairs you should always use the original packaging for transport e You should also include as accurate a fault description as possible Important symbols in this manual WARNING This symbol warns you of danger e Always follow these instructions to avoid injury to the user or damage to the product EXPLOSION HAZARD This symbol warns you of an explosion hazard an example of which can be caused by excessive tyre pressure in a pneumatic tyre e Always follow the instructions to avoid injury to the user or damage to the product BURN HAZARD This symbol warns you of burns due for example to leaking battery acid e Always follow the instructions to avoid injury to the user or damage to the product VW y NOTE This symbol identifies general information which is intended to simplify working with your product and which refers to special functions Requirements e This symbol identifies a list of various tools components and items which you will need in order to carry out certain work 2 1 Safety and assembly instructions These safety instructions are intended to prevent accidents during work and it is imperative that they are obs
12. e brake cable through the cladding e Loosen brake lever screw 3 at wheel e Replace brake cable e Reassembly of the brake cable takes place in reverse order e Check braking function while pushing o D Tie Replacing steering linkage steering rod CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence Requirements e Open spanner 10 mm Open spanner 12 mm Open spanner 13 mm Phillips screwdriver Circlip pliers Supporting wooden block e Remove the seat e Remove motor cover e Disconnect battery cable 1 e Dismantle the steering column and the chassis See chapter entitled Replacing steering column fork 3 wheel on page 25 31 32 e Replacing steering link e Remove circlip 1 on steering link 2 e Replace steering link e Adjust length of steering link using setting screws 3 e Replacing steering rod e Remove circlip 4 on steering rod 5 e Replace steering rod e Adjust tracking by 1 inwards using setting screw 6 See sketch e Reassembly of the steering linkage and or steering rod takes place in reverse order e Check function trial run o pe Ce gt Replacing operating console CAUTION Burn and scald hazard if power
13. e correctly secured Check all parts for correct interlocking1 e Only operate the electric vehicle with correct tyre pressure see Technical Specifications e Check electrical components for correct functioning incorrect polarity of cables can result in damage to the electronics e Asa last check always carry out a test drive Notes Mark all current settings for the electric vehicle seat armrests backrest etc and the cable connecting plugs associated before any removals This makes reassembly easier All plugs are fitted with mechanical safety devices which prevent release of the connecting plugs during operation To release the connecting plugs the safety devices must be pressed in When reassembling ensure that these safety devices are correctly engaged 10 A WARNING Any alteration to the drive programme can influence vehicle handling and the tipping stability of the electric vehicle Alterations to the drive programme may only be carried out by trained Invacare dealers Invacare supplies all electric vehicles from the factory with a standard drive programme Invacare can only assume a warranty for the safe vehicle handling of the electric vehicle in particular tipping stability for this standard drive programme Tightening torques The tightening torques stated in the following table are dependent on the thread diameters for the nuts and bolts for which no special values are determined All values
14. erved Before any inspection or repair work e Read and observe this repair manual and the associated operating manual e Observe the minimum requirements for carrying out the work see chapter entitled General information General safety information and notes on assembly disassembly Danger of injury by crushing e Please note the heavy weight of some components This applies especially to removal of drive units and batteries e Prop up the lifted electric vehicle with appropriate supports before starting the disassembly or assembly Danger of fire and burns due to electrical short circuit e The electric vehicle must be switched off before removal of voltage carrying components To do this disconnect the batteries e When making measurements on voltage carrying components avoid short circuiting the contacts Danger of fire and combustion Danger of injury and damage to the vehicle can result from incorrect or incomplete maintenance e Only ever use tools which are undamaged in good condition e Some moving parts have Teflon bushings These parts must never be lubricated with grease e Never use standard nuts instead of self locking nuts e Always use correctly dimensioned washers or spacers e Cable binders which have been cut off during disassembly should be replaced with new ones during reassembly e After completing maintenance work and before operating the electric vehicle make sure all fixations ar
15. k under the frames at battery holder height Remove the seat Remove motor cover Disconnect both battery plugs 1 From the operating manual Unscrew the rear wheel fixing bolts Remove rear wheels Remove the drive unit See chapter entitled Replacing drive motor Remove screws 1 on electronics module Replace electronics module 2 47 48 Reassembly of the drive and the electronics module takes place in reverse order Load drive program onto electronics module See electronics software description Check all functions trial run 6 18 Wi Updating software Invacare is continuously carrying out further development and improvements to drive programs for electric vehicles For this reason you should always check whether the drive program version number is up to date when carrying out any repairs or regular maintenance If a newer version is available the drive program must be updated The procedure for updating the drive program is described in the wizard software operating manual NOTE The electronic system is supplied with a standard drive program If you have carried out customer specific modifications to the drive program you will have to make these changes again after installing the new electronics module CAUTION Any modifications made to the drive program can affect the drive behaviour and tipping stability e Changes to the drive program may only be carried out by trained In
16. l version does not have a replaceable axle Requirements e Open spanner 17 mm e Open spanner 19 mm e Supporting wooden block e Remove the seat Remove motor cover e Separate battery cable e Place a supporting wooden block under the front part of the frame so that the front wheel is no longer touching the floor e Loosen axle bolts 1 simultaneously on both sides e Pull front axle slowly out e Replace front axle e Reassembly of the axle takes place in reverse order e Check function trial run D ror 9 D Replacing steering column fork 3 wheel CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence Requirements e Open spanner 10 mm Open spanner 17 mm Open spanner 19 mm Open spanner 32 mm Phillips screwdriver Supporting wooden block e Remove the seat e Remove motor cover e Disconnect battery cable 1 e Place a supporting wooden block under the front part of the frame so that the front wheel is no longer touching the floor e Remove drive lever screws 3 e Remove drive lever 2 e Unscrew the bolts 1 on the drive console e Remove drive console 25 26 Remove screws 1 on rear steering column cladding Remove steering column cladding Lo
17. n or replace Cable connecting fixing plug Replace cable Drive lever function connecting plug Power supply Replace drive lever Replace cable connecting plug or console 12 compen ome mete Drive program Speed reduction in bends Check drive e Update software electronics program version Newer version available Check cable and e Adjust or replace connecting plug sensor on Check function microswitch 13 5 1 1 14 Operational Faults Operational faults Please proceed as follows if you have any problems e First assess the possible cause of the problem using the following table e Check the drive console status display Evaluate the blink error code e Carry out the necessary checks and repairs as recommended in the following table Drive fault diagnosis PROBLEM OTHER SYMPTOMS POSSIBLE CAUSE SOLUTION Documentation Scooter will Status display not start on operating console does not illuminate Batteries possibly defective e Replace batteries See operating manual Batteries possibly over discharged Power supply to operating console e Pre charge batteries e Check master fuse See operating manual See operating instructions for main fuse possibly position interrupted e Check cable See Replacing the between electronics module on modules for page 46 loose connections or damage Operating e Replace See Replacing console possibly operati
18. ng operating console on defective console page 33 Operating unit status display blinking Various causes e Assess error code See Error Codes and Diagnostic Codes on page 15 5 2 PROBLEM OTHER POSSIBLE SOLUTION Documentation SYMPTOMS CAUSE Scooter None Drive motor s e Replace See Replacing the judders in possibly defective motor s drive motor on page 17 drive mode Drive lever e Replacing the See Replacing the potentiometer potentiometer potentiometer on page possibly defective 37 Batteries None Batteries possibly Replace See operating manual not being defective batteries charged LEDs blinking Charging device Replace See charging unit on charging unit possibly defective charging unit operating manual Scooter None Operating e Replace See Replacing runs too console possibly operating operating console on slowly defective console page 33 Batteries possibly e Replace See operating manual defective batteries Error Codes and Diagnostic Codes Blink Fault Consequence Comments code for the Scooter 1 Battery must be Continues to e The batteries are discharged Charge the charged drive battery as soon as possible 2 Battery voltage too Stops driving e The batteries are depleted Charge low batteries e f you switch the Scooter off for a few minutes the battery can often recuperate to such a stage that a short journey is still possible
19. osen screws on front basket holder Remove basket holder Remove spacer bushes Remove screws 3 on front steering column cladding Remove the front steering column cladding Release brake cable see chapter entitled Replacing brakes on page 28 Unscrew screw at clamp 1 Unscrew fixing bolt for steering column and remove Pull steering column out upwards Replacing fork 3 wheel Remove rubber mat in foot well Loosen screws in chassis below mat Remove chassis upwards Remove front wheel see chapter entitled Replacing front axle on page 24 Pull off clamp 1 Loosen fork bolt 2 Loosen knurled screw 3 Replace fork Reassembly takes place in the reverse order Operate brake and hold tighten axle bolts at same time Check functions trial run 27 28 Replacing brakes CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence NOTE The front axle can only be replaced on the 3 wheel version The 4 wheel version does not have a replaceable axle Requirements Open spanner 10 mm Open spanner 17 mm Open spanner 19 mm Supporting wooden block e Remove the seat Remove motor cover e Separate battery cable e Place a supporting wooden block under the front
20. pension A CAUTION Accident hazard e Secure the scooter against rolling away i NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence yA Requirements e Open spanner 10 mm Open spanner 12 mm Open spanner 13 mm Open spanner 32 mm Phillips screwdriver Supporting wooden block e Remove the seat e Remove motor cover e Disconnect battery cable 1 e 3 wheel version Dismantle steering column and chassis see chapter entitled Replacing steering column fork 3 wheel on page 25 e 4 wheel version Dismantle steering link and steering rod see chapter entitled Replacing steering linkage steering rod on page 31 e Loosen wheel suspension screw 1 e Loosen knurled screw 2 e Replace wheel suspension 20 Reassembly takes place in the reverse order Adjust tracking see chapter entitled Replacing steering linkage steering rod on page 31 Check function trial run 21 gt 22 Replacing shock absorber CAUTION If the scooter is supported by the support wheels it will no longer be braked by the motor brake The scooter can roll away out of control e Place the scooter rear frame on a piece of supporting wood once you have removed the wheels CAUTION Accident hazard e Secure the scooter against rolling away NOTE
21. potentiometer plug 1 from the operating console 37 38 Remove screws 1 on potentiometer Replace potentiometer Reconnect potentiometer plug 1 with operating console Setting the potentiometer to the middle position Loosen the bolts 1 on the drive lever mounting Twist the potentiometer shaft 2 until the same resistance approx 5kOhm is measured between the central connection cable 3 and both outputs 4 Retighten the bolts on the drive lever mounting Check settings and repeat the adjustment if necessary Reassembly of the operating console takes place in reverse order Check all functions trial run 6 13 Replacing front headlight lamp Vi f Requirements e Phillips screwdriver e Remove the seat e Remove motor cover e Separate battery cable e 3 wheel version e Remove screw 1 on front headlight under front cladding e 4 wheel version e Remove screw 1 on front headlight under front cladding e Remove headlight e Disconnect cable from wiring harness e Remove screws 1 on headlight glass e Remove headlight glass e Replace bulb s in headlight ET TA R aiir 1 JE WN 39 40 Reassembly of the headlight takes place in reverse order Check function 6 14 Replacing the front direction indicators yA Requirements el e Phillips screwdriver e Remove the seat e Remove motor cover e Separate battery cable e
22. r Stops driving The drive lever electronics could be faulty or incorrectly connected Check the cabling for open or short circuited circuitry Potentiometer is not correctly adjusted Put the potentiometer into the centre position Motor voltage error Stops driving The motor or its cabling is defective Check the cabling for open or short circuited circuitry Miscellaneous internal fault Stops driving Contact your Invacare dealer 10 Push freewheel mode error Stops driving The Scooter has exceeded the permissible maximum speed during pushing or freewheeling Switch the electronics system off and on again 6 1 gt amp W Repair Work General warning information on installation work CAUTION Risk of damage to the vehicle Collisions can be caused if shim rings are removed from the drive wheels during installation work e Shim rings are frequently placed between the drive shaft and the wheel hub to compensate tolerances Collisions can be caused if these shim rings are removed and not re installed Please install all shim rings in exactly the same positions they were in before dismantling Replacing the drive motor CAUTION If the scooter is supported by the support wheels it will no longer be braked by the motor brake The scooter can roll away out of control e Place the scooter rear frame on a piece of supporting wood before removing the wheel
23. s CAUTION Accident hazard e Secure the scooter against rolling away NOTE When disassembling note the position of small parts such as screws and washers Put small parts down so that they can be reassembled in the right sequence NOTE The plugs on the electronic module cannot be wrongly connected because all plugs have a different size and only fit in one socket Requirements e Open spanner 10 mm Open spanner 17 mm oblique pliers Rubber hammer Phillips screwdriver Supporting wooden block e Secure the scooter against rolling away e Place supporting wooden block under the frames at battery holder height e Remove the seat e Remove motor cover e Disconnect both battery plugs 1 17 18 e From the operating manual e Unscrew the rear wheel fixing bolts e Remove rear wheels e Disconnect plugs 1 2 3 from electronic module e Disconnect brake light plug 4 e Disconnect motor brake plug 5 e Remove both screws 2 from the wheel cover 1 e Remove wheel cover 1 e Remove both screws 1 from the drive holder 2 e Remove drive holder 2 Remove screws 1 on disengaging lever 2 Remove disengaging lever 2 Lifted drive out of its holder and take it out of the frames to the side Replace drive unit Reassembly of the drive takes place in reverse order Check all functions trial run 19 6 3 Replacing wheel sus
24. s e Replace sensor e Replacing sensors 5 with mounting e Loosen fork bolt 1 e Replace sensors 5 with mounting e Replacing regulating unit 4 e Loosen screws e Remove sensor 5 e Loosen screws 3 e Replace regulating unit 4 35 36 Adjusting Set steering to straight ahead Align sensor straight using regulating unit Take hold of the sensor and tighten the fork screw Check Turn the steering completely to the right and then the left When the steering is turned to its limit the 3 regulating unit switching knobs should be visible Reassembly takes place in the reverse order Check functions trial run 6 12 Replacing the potentiometer A CAUTION Burn and scald hazard if power cable is short circuited e Interrupt the power supply by removing the battery plugs before you start work on the electronic system A CAUTION Risk of accidents e The new potentiometer must be set to the middle position before inserting Potentiometers which are not in the middle position can result in dangerous driving situations 4 Requirements sh e Phillips screwdriver e Digital multimeter e Allen key 2m e Remove the seat e Remove motor cover e Disconnect battery cable 1 e Remove screws 1 below operating console e Remove operating console and fold upwards e Remove screws 3 on drive lever 2 and mgt F remove drive lever n F p e Disconnect
25. vacare specialist dealers e Invacare can only provide a guarantee for safe driving especially tipping stability for unmodified standard drive programs Requirements e Dynamic Wizard software e Operating manual for Wizard software e Further requirements such as a minimum system configuration for the PC used for programming required programming cables etc can be taken from the Wizard software operating manual 49
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