Invacare G50 Service Instructions Manual
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Invacare G50 Service Instructions Manual

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Invacare
G50
®
SERVICE INSTRUCTIONS
Edition: 20.03.11

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Summary of Contents for Invacare G50

  • Page 1 Invacare ® SERVICE INSTRUCTIONS Edition: 20.03.11...
  • Page 2 ® SERVICE INSTRUCTIONS Invacare - G50 These instructions contain information about: Testing work Repair Instructions This manual is part of the instructions for use. Service addresses +43 6232 5 53 50 Invacare Austria GmbH Fax: +43 6232 5 53 54 Herzog Odilostrasse 101 info@invacare-austria.com...
  • Page 3 +44 (0)1656 77 62 20 uk@invacare.com Pencoed WWW: www.invacare.co.uk Bridgend CF35 5HZ United Kingdom +39 0445 38 00 59 Invacare Mecc San s.r.l. Via dei Pini, 62 Fax: +39 0445 38 00 34 I - 36016 Thiene (VI) italia@invacare.com WWW: www.invacare.it...
  • Page 4 ® SERVICE INSTRUCTIONS Invacare - G50 (Kundtjänst): +46 (0)8 761 70 90 Återförsäljare: Fax (Kundtjänst): +46 (0)8 761 81 08 Invacare® AB sweden@invacare.com Fagerstagatan 9 finland@invacare.com S-163 91 Spånga WWW: www.invacare.se Sverige MÖLNDAL Tillverkare:  : +46 (0)31 86 36 00 Invacare®...

  • Page 5: Table Of Contents

    ® Invacare - G50 SERVICE INSTRUCTIONS Table of Contents Chapter Page TABLE OF CONTENTS INTRODUCTION General information Notes on transport Definition and representation of information and safety information in this manual Hazard symbols and symbols used Images in this manual...
  • Page 6 ® SERVICE INSTRUCTIONS Invacare - G50 Replacing the side cowling 7.4.1 Placing seat in service position 7.4.2 Remove the rear cowling 7.4.3 Removing the side cowling 7.4.4 Assembly Replacing the headlights 7.5.1 Placing seat in service position 7.5.2 Unmounting the headlights 7.5.3...
  • Page 7 ® Invacare - G50 SERVICE INSTRUCTIONS 7.18 Retrofitting the joystick left/right 7.18.1 Placing seat in service position 7.18.2 Retrofitting 7.19 Repairing a flat tyre 7.19.1 Repairing a flat tyre (type 4.00-8" pneumatic tyres) 7.19.2 Repairing a flat tyre (type 3.10/4.50-6 pneumatic tyres) 7.20...

  • Page 8: Introduction

    • Alterations to the mobility aid which occur as a result of incorrectly or improperly executed maintenance or overhaul work lead to the exclusion of all liability on the side of INVACARE. • If you have any problems or questions please contact Invacare® Service.

  • Page 9: Definition And Representation Of Information And Safety Information In This Manual

    ® Invacare - G50 SERVICE INSTRUCTIONS Definition and representation of information and safety information in this manual Different types of information and signal words are used throughout this manual. HAZARD! The signal word "HAZARD!" refers to immediate hazards. • The following lines in italics refer to actions which serve to avoid such hazards.

  • Page 10: Hazard Symbols And Symbols Used

    ® SERVICE INSTRUCTIONS Invacare - G50 Hazard symbols and symbols used Different types of hazard symbols and symbols are used throughout this manual. General hazards This symbol warns you of general hazards! • Always follow the instructions to avoid injury to the user or damage to the product!

  • Page 11: Images In This Manual

    ® Invacare - G50 SERVICE INSTRUCTIONS Images in this manual The detailed images in this manual are given digits to identify various components. Component numbers in text and operational instructions always relate to the image directly above.

  • Page 12: Safety And Fitting Instructions

    ® SERVICE INSTRUCTIONS Invacare - G50 Safety and fitting instructions These safety instructions are intended to prevent accidents at work, and it is imperative that they are observed. Before any inspection or repair work • Read and observe this repair manual and the associated operating manual! •...
  • Page 13 Any changes to the drive program can affect the driving characteristics and the tipping stability of the vehicle! • Changes to the drive program may only be carried out by trained Invacare® specialist dealers! • Invacare® supplies all mobility aids with a standard drive program ex-works. Invacare® can...

  • Page 14: Tightening Torques

    ® SERVICE INSTRUCTIONS Invacare - G50 Tightening torques The tightening torques stated in the following list are based on the thread diameter for the nuts and bolts for which no specific values have been determined. All values assume dry and de-greased threads.

  • Page 15: Allocation Of The Sub-Assemblies And Components

    ® Invacare - G50 SERVICE INSTRUCTIONS Allocation of the sub-assemblies and components Under the seat: 1) Batteries 2) Main fuse 3) Drive Under the rear cowling 4) CLAM (Combined Light and Actuator Module) (only installed if the wheelchair is equipped with electric...

  • Page 16: Maintenance Plan (Once A Year)

    ® SERVICE INSTRUCTIONS Invacare - G50 Maintenance plan (once a year) Component Check for Measures Seating Unit • Damage / wear • Replace Armrests / Armrest pads • Check that all screws are • Tighten tight • Damage / wear •...
  • Page 17 "Checking the cables" on page 87) • Check that all screws are • Tighten tight • Function • Send in to Invacare to be repaired, if necessary replace (See "Replacing the ACS Remote" on page 90) • Light bulbs defective •...
  • Page 18 ® SERVICE INSTRUCTIONS Invacare - G50 Component Check for Measures • Damage • Replace Steering connecting rods / steering connecting rod heads • Check that all screws are • Tighten tight • Function • Check that the plug-in Servo connection of the servo...

  • Page 19: Operational Faults

    ® Invacare - G50 SERVICE INSTRUCTIONS Operational Faults Operational faults on wheelchair with ACS In the event of problems with the wheelchair, please proceed as follows: • Begin by assessing the possible cause of disturbance on the basis of the following tables.
  • Page 20 ® SERVICE INSTRUCTIONS Invacare - G50 PROBLEM OTHER POSSIBLE SOLUTION DOCUMENTATION SYMPTOMS CAUSE None • Replace Wheelchair Batteries See "Changing the batteries judders possibly faulty batteries" on page 79 during drive (unstable operation voltage) • Replace motor See "Replacing a motor"...

  • Page 21: Diagnosing Problems With Electric Actuators

    ® Invacare - G50 SERVICE INSTRUCTIONS 6.1.2 Diagnosing problems with electric actuators Assess the cause of the fault involving an electric adjustment motor on the basis of the following table: PROBLEM OTHER POSSIBLE SOLUTION DOCUMENTATION SYMPTOMS CAUSE Electric Remote displays...

  • Page 22: Error Codes And Diagnostic Codes

    ® SERVICE INSTRUCTIONS Invacare - G50 6.1.3 Error Codes and Diagnostic Codes 6.1.3.1 CLAM Status display of the CLAM, LED of the CLAM lights up constantly: (visible through hole (1)) CLAM is functioning correctly. LED of the CLAM is off: CLAM may not be connected.
  • Page 23 ® Invacare - G50 SERVICE INSTRUCTIONS Remote status bar Servo light Cause Fault remedy indicator LED blink module LED code blink code • ACS module defective Replace faulty module See "Replacing electronics components" on page 77 Plug on servo light module •...
  • Page 24 ® SERVICE INSTRUCTIONS Invacare - G50 Remote status bar Servo light Cause Fault remedy indicator LED blink module LED code blink code • Magnetic brake defective or Engage motor. Switch the drive disengaged electronics system off and on again. •...
  • Page 25 ® Invacare - G50 SERVICE INSTRUCTIONS Remote status bar Servo light Cause Fault remedy indicator LED blink module LED code blink code • Maximum current time-out Switch the electronics (servo motor overloaded or system off and on again. overheated) Compatibility problems •...

  • Page 26: Repair Work

    ® SERVICE INSTRUCTIONS Invacare - G50 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! Shim rings are frequently placed between the drive shaft and the wheel hub to compensate tolerances.

  • Page 27: Replacing Front Cowling

    ® Invacare - G50 SERVICE INSTRUCTIONS Replacing front cowling Requirements: • Open-end spanner 13 mm NOTE Please keep small parts such as screws and grommets safe during dismantling. Lay all small parts down in such a way that they can be re-fitted in the correct order.

  • Page 28: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 • Pull the cowling upward and forwards and remove. 7.2.2 Assembly The process of re-assembly is done in reverse order.

  • Page 29: Replacing Rear Cowling / Replacing Rear Lights

    ® Invacare - G50 SERVICE INSTRUCTIONS Replacing rear cowling / replacing rear lights Requirements: • 8mm open-ended spanner NOTE Please keep small parts such as screws and grommets safe during dismantling. Lay all small parts down in such a way that they can be re-fitted in the correct order.

  • Page 30: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 In case the existing rear lighting is to be re- employed: • Loosen and remove the fixation nuts (1) of the rear lights using the open-end spanner 8 mm. • Remove rear lights. 7.3.2 Assembly The process of re-assembly is done in reverse order.

  • Page 31: Replacing The Side Cowling

    ® Invacare - G50 SERVICE INSTRUCTIONS Replacing the side cowling Requirements: • 8mm open-ended spanner • 3 mm Allen key • 6 mm Allen key • Diagonal-nosed cutting pliers • Cable ties • Phillips screwdriver Note Please keep small parts such as screws and grommets safe during dismantling. Lay all small parts down in such a way that they can be re-fitted in the correct order.

  • Page 32: Remove The Rear Cowling

    ® SERVICE INSTRUCTIONS Invacare - G50 • Press the release button and tip the seat backward carefully. • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right or it will swivel further to the front.

  • Page 33: Removing The Side Cowling

    ® Invacare - G50 SERVICE INSTRUCTIONS • Loosen and remove the knurled screw (A). • Pull cowling upwards and backwards. • Disconnect the plug-in connections (1) of the rear lighting. 7.4.3 Removing the side cowling With a cane holder • Loosen and remove the fixation screws of the cane holder, using the open-end spanner 8 mm.
  • Page 34 ® SERVICE INSTRUCTIONS Invacare - G50 Without a cane holder • Use the Allen key 3 mm to loosen and remove the lateral fixation screws (1) of the side cowling. • Use the Allen key 6 mm to loosen and remove the lateral fixation bolts (1) of the side handle.
  • Page 35 ® Invacare - G50 SERVICE INSTRUCTIONS • Both the bus cable of the joystick box, as well as the headlight cable are held by two cable clips on the under side of the frame tube (visible from the inside). • Carefully pull out the bus cable and headlight cable.

  • Page 36: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 • Carefully pull the headlight cable out of the opening in the side cowling. • Seitenverkleidung entfernen. 7.4.4 Assembly • Re-assembly is done in reverse order. • Fasten all cables with cable ties again.

  • Page 37: Replacing The Headlights

    ® Invacare - G50 SERVICE INSTRUCTIONS Replacing the headlights Requirements: • 6 mm Allen key • Diagonal-nosed cutting pliers • Cable ties • Phillips screwdriver Note Please keep small parts such as screws and grommets safe during dismantling. Lay all small parts down in such a way that they can be re-fitted in the correct order.
  • Page 38 ® SERVICE INSTRUCTIONS Invacare - G50 • Press the release button and tip the seat backward carefully. • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right...

  • Page 39: Unmounting The Headlights

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.5.2 Unmounting the headlights • Cut the cable binder (1) of the headlight cable with the pair of side cutters. • Loosen and remove the fixation screws (1) that hold the headlight, using the crosstip screwdriver.

  • Page 40: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 • Cut the cable binder (1) with the pair of side cutters. • Disconnect the plug of the headlight cable from the plug-in connection circuit board. • Carefully pull the headlight cable out of the opening in the side cowling.

  • Page 41: Replacing A Motor

    ® Invacare - G50 SERVICE INSTRUCTIONS Replacing a motor WARNING: Danger of crushing! The mobility device is very heavy. Injury hazard to hands and feet! • You should seek help from a second person. Injury hazard caused by uncontrolled movement of the mobility device! •...
  • Page 42 ® SERVICE INSTRUCTIONS Invacare - G50 Removing the fixed legrests • Loosen the fixation screw with open-end spanner 13 mm. • Pull legrest out toward the front. • Loosen and remove the knurled screws (A). • Pull the cowling upward and forwards and remove.
  • Page 43 ® Invacare - G50 SERVICE INSTRUCTIONS • Jack up wheelchair with wooden blocks under the battery compartment. • Carefully pry the hub caps off of the drive wheels with the small, flat screwdriver. • Remove the fixation bolt of the wheel hubs with the socket spanner 19 mm.
  • Page 44 ® SERVICE INSTRUCTIONS Invacare - G50 • Secure the drive unit with wooden blocks against falling down. • The brake is held by four screws (1). • Loosen and remove the screws, using the Allen key with ball end 3 mm.
  • Page 45 ® Invacare - G50 SERVICE INSTRUCTIONS • Loosen and remove the fixation bolts of the drive unit on both side with the Allen key 8 mm and socket spanner 17 mm. • Loosen and remove the fixation screw of the ground lead (1) with the Allen key 5 mm and the open-end spanner 10 mm.

  • Page 46: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 ATTENTION: Danger of injury by crushing! The dive unit is very heavy. Danger of injury to your hands! • Please give consideration to the great weight. • The drive unit can now be removed by pulling it out towards the front.
  • Page 47 ® Invacare - G50 SERVICE INSTRUCTIONS • Tighten the fixation bolts (2) of the drive unit with the Allen key 8 mm and socket spanner 17 mm. • Further assembly of the motor is carried out in reverse order to disassembly.

  • Page 48: Replacing The Rear Rocker / Adjusting Toe And Camber

    ® SERVICE INSTRUCTIONS Invacare - G50 Replacing the rear rocker / adjusting toe and camber WARNING: Danger of crushing! The mobility device is very heavy. Injury hazard to hands and feet! • You should seek help from a second person.
  • Page 49 ® Invacare - G50 SERVICE INSTRUCTIONS • Pull cowling upwards and backwards. • Jack up wheelchair with wooden blocks under the battery compartment. All wheels must be clear of the ground and able to rotate freely. • Loosen the nut (1), using the open-end...
  • Page 50 ® SERVICE INSTRUCTIONS Invacare - G50 • The outer bushing (1) is not secured with anaerobic metal adhesive, only inserted loosely. • Loosen and remove the bushing (1), using the water pump pliers. • The inner bushing (1) is secured with metal adhesive and cannot be removed from the trailing arm.

  • Page 51: Assembly

    ® Invacare - G50 SERVICE INSTRUCTIONS • Counter the dowel screw (the pivotal point of the rocker) (1, not visible in the picture), using the Allen key 6 mm to prevent it from rotating, while using the open-end spanner 17 mm to loosen and remove the nut (2).

  • Page 52: Adjusting The Camber

    ® SERVICE INSTRUCTIONS Invacare - G50 7.7.3 Adjusting the camber The optimum wheel camber is +0.5° (positive camber), and is set by rotating the bushing (1), using the open-end spanner 38 mm (alternatively, a ring spanner or a ratchet with a 38 mm socket can be used).
  • Page 53 ® Invacare - G50 SERVICE INSTRUCTIONS Adjusting the toe-in The toe-in is adjusted by means of the steering connecting rod (1). • Loosen the counter nuts (2 and 3) of the steering connecting rod, using the open-end spanner 13 mm. Please note: The inner counter nut (3) has a left-hand thread! •...

  • Page 54: Replacing The Front Shock Absorbers

    ® SERVICE INSTRUCTIONS Invacare - G50 Replacing the front shock absorbers WARNING: Danger of crushing! The mobility device is very heavy. Injury hazard to hands and feet! • You should seek help from a second person. Injury hazard caused by uncontrolled movement of the mobility device! •...
  • Page 55 ® Invacare - G50 SERVICE INSTRUCTIONS Removing the fixed legrests • Loosen the fixation screw with open-end spanner 13 mm. • Pull legrest out toward the front. • Loosen and remove the knurled screws (A). • Pull the cowling upward and forwards and remove.
  • Page 56 ® SERVICE INSTRUCTIONS Invacare - G50 • Carefully pry the hub caps off of the drive wheels with the small, flat screwdriver. • Remove the fixation bolt of the wheel hubs with the socket spanner 19 mm. • Jack up wheelchair with wooden blocks under the battery compartment.
  • Page 57 ® Invacare - G50 SERVICE INSTRUCTIONS • Pry off the protective cap (1) of the fixation bolt of the shock absorber using the flat screwdriver. • Loosen and remove the upper fixation bolt of the shock absorber with two open-end spanners 13 mm.

  • Page 58: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 7.8.2 Assembly ATTENTION! Danger of material damage! The spring of the shock absorber must always be under tension. • If necessary, adjust the shock absorber by turning the adjustment knurled nut. • The process of re-assembly is done in reverse order.

  • Page 59: Replacing The Bowden Cable Of The Hand Brake / Adjusting The Brake

    ® Invacare - G50 SERVICE INSTRUCTIONS Replacing the Bowden cable of the hand brake / adjusting the brake Requirements: • Open-end spanner 8 mm • Open-end spanner 13 mm • Open-end spanner 10 mm • 3 mm Allen key • 6 mm Allen key •...
  • Page 60 ® SERVICE INSTRUCTIONS Invacare - G50 • Loosen and remove the knurled screws (A). • Pull cowling upward and forwards and remove. • Loosen and remove the knurled screws (A) of the rear cowling. • Pull cowling upwards and backwards.
  • Page 61 ® Invacare - G50 SERVICE INSTRUCTIONS To be able to access the Bowden cables of the hand brake, the side cowling on the side where the brake lever is located needs to be removed. • Cut the cable binder (1) of the headlight cable with the pair of diagonal-nosed cutting pliers.
  • Page 62 ® SERVICE INSTRUCTIONS Invacare - G50 • The brake lever mechanism is held by four screw. Loosen and remove the screws, using an Allen key 3 mm. • Remove the brake lever mechanism. • Loosen the nuts on the Bowden cable...

  • Page 63: Assembly

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.9.2 Assembly • Re-assembly is done in reverse order. • Secure the Bowden cable, using new cable ties. 7.9.3 Adjusting the hand brake After replacing a Bowden cable, the hand brake must be adjusted.
  • Page 64 ® SERVICE INSTRUCTIONS Invacare - G50 • Give the wheel a strong spin by hand. Listen carefully to determine whether the brake is making grinding noises. • If the brake is grinding, rotate the adjustment screw (1) of the Bowden cable bit by bit, until the grinding sounds go away.

  • Page 65: Replacing The Bowden Cable Of The Declutching Mechanism

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.10 Replacing the Bowden cable of the declutching mechanism Requirements: • Open-end spanner 6 mm • Open-end spanner 8 mm • Open-end spanner 13 mm • 3 mm Allen key • 6 mm Allen key •...
  • Page 66 ® SERVICE INSTRUCTIONS Invacare - G50 • Engaging the motors: Push the release lever backward. • Loosen and remove the knurled screws (A). • Pull cowling upward and forwards and remove. • Loosen and remove the knurled screws (A) of...
  • Page 67 ® Invacare - G50 SERVICE INSTRUCTIONS • Pull cowling upwards and backwards. To be able to access the Bowden cable of the declutching mechanism, the side cowling on the side where the declutching lever is located needs to be removed.
  • Page 68 ® SERVICE INSTRUCTIONS Invacare - G50 • Loosen and remove the fixation screws (1) of the brake and declutching levers, using the cross-tip screwdriver . • The declutching lever mechanism is held by four screws. Loosen and remove the screws using the 3 mm Allen key and the 8 mm open- end spanner.

  • Page 69: Assembly

    ® Invacare - G50 SERVICE INSTRUCTIONS • Remove the Bowden cable from the eccentric disc. 7.10.2 Assembly • Re-assembly is done in reverse order. • Secure the Bowden cable, using new cable ties.

  • Page 70: Replacing The Seat Frame (Ebas)

    ® SERVICE INSTRUCTIONS Invacare - G50 7.11 Replacing the seat frame (EBAS) Requirements: • Open-end spanner 10 mm • 2x Open-end spanners 13 mm • Allen key 4 mm • 6 mm Allen key • Small, flat screwdriver • Cutter knife •...
  • Page 71 ® Invacare - G50 SERVICE INSTRUCTIONS • Press the release button and tip the seat backward carefully. • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right...

  • Page 72: Disassembly

    ® SERVICE INSTRUCTIONS Invacare - G50 7.11.2 Disassembly Removing the swing-away legrests • Press the unlocking button (1) and swivel the footrest outward. • Remove the footrest in an upward direction. Removing the fixed legrests • Loosen the fixation screw with open-end spanner 13 mm.
  • Page 73 ® Invacare - G50 SERVICE INSTRUCTIONS • Carefully pull the bus cable out of the cable clips under the edge of the seat. • Open the reusable cable binders (1) by pressing down the latching tabs, and loosen them enough so that the plug of the bus cable can be pulled through.
  • Page 74 ® SERVICE INSTRUCTIONS Invacare - G50 • The six screws that attach the seat plate to the frame are located under the seat cushion. • Four of them (1) are covered by Velcro strips. The other two screws in the rear of the seat plate are readily accessible.
  • Page 75 ® Invacare - G50 SERVICE INSTRUCTIONS • Before the fixation nuts of the gas pressure springs can be loosened, the front fixation screws (1) of the lateral handles should be loosened and removed, using an Allen key 6 mm, so that the seat support can be moved further forward.

  • Page 76: Assembly

    ® SERVICE INSTRUCTIONS Invacare - G50 • Loosen and remove the fixation screws of the rear swinging arms of the seat support, using an Allen key 6 mm. • The front fixation screws of the seat support are located on the left and right sides under the fenders of the front wheels.

  • Page 77: Replacing Electronics Components

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.12 Replacing electronics components Requirements: • Open-end spanner 8 mm • Crosstip screwdriver 7.12.1 Replacing the power module • Remove rear cowling. • Disconnect all plug-in connections of the power module. • Loosen and remove the fixation screws of the power module using the open-end spanner 8 mm.

  • Page 78: Replacing Other Electronic Components

    ® SERVICE INSTRUCTIONS Invacare - G50 7.12.2 Replacing other electronic components CLAM (1) (only installed if the wheelchair is equipped with electric adjustment options) • Disconnect the plug-in connections of all cables on the CLAM. • Push CLAM forwards and remove.

  • Page 79: Changing The Batteries

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.13 Changing the batteries ATTENTION! Injury hazard and possible material damages if batteries are handled improperly! • The installation of new batteries may only be carried out by authorised specialists. • Observe the warning information on the batteries.

  • Page 80: Tilting The Seating System Forward

    ® SERVICE INSTRUCTIONS Invacare - G50 Pre-requisites: • 11 mm spanner • 6 mm Allen key 7.13.1 Tilting the seating system forward • Use the Allen key to loosen the screws (1) on both sides and remove. The seat release button is to be found at the front underneath the edge of the seat (2).

  • Page 81: Removing The Batteries

    ® Invacare - G50 SERVICE INSTRUCTIONS • Press the release button and tip the seat backward carefully. The seat locks into place in this position. • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right or it will swivel further to the front.

  • Page 82: Connecting The New Batteries

    ® SERVICE INSTRUCTIONS Invacare - G50 • Remove the blue battery cable insulation shoe (2) on the negative terminal. • Loosen battery clamp and remove cable. • Remove the red battery cable insulation shoe (3) on the positive terminal. • Loosen battery clamp and remove cable.

  • Page 83: How To Handle Damaged Batteries Correctly

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.13.4 How to handle damaged batteries correctly WARNING: BURN HAZARD! Injury hazard due to discharged acid. • Always wear acid-proof protective gloves when handling batteries. • Always wear protective goggles when handling batteries. What to do if acid is discharged: •...

  • Page 84: Checking And Replacing The Main Fuse

    ® SERVICE INSTRUCTIONS Invacare - G50 7.14 Checking and replacing the main fuse CAUTION: Fire hazard! A short circuit can cause extremely high currents which can result in spark formation and fire! • Always use an original strip fuse with the approved amperage.
  • Page 85 ® Invacare - G50 SERVICE INSTRUCTIONS The seat release button is to be found at the front underneath the edge of the seat (2). CAUTION! Damage to the wheelchair due to careless tipping of seat! • When tipping the seat, make sure the fixation brackets of the backrest do not damage the side or rear cowlings! •...
  • Page 86 ® SERVICE INSTRUCTIONS Invacare - G50 • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right or it will swivel further to the front.

  • Page 87: Checking The Cables

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.15 Checking the cables Requirements: • 6 mm Allen key • Remove the rear cowling. • Check all cables for visible damage and crushing. Check the battery cables (1) for visible damage and crushing.
  • Page 88 ® SERVICE INSTRUCTIONS Invacare - G50 • Press the release button and tip the seat backward carefully. • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right or it will swivel further to the front.
  • Page 89 ® Invacare - G50 SERVICE INSTRUCTIONS • Re-position the cowling of the electronics compartment. • Swing seat back into normal driving position and re-position and tighten all screws. • Check all vehicle functions.

  • Page 90: Replacing The Acs Remote

    • Changes to the drive program may only be carried out by trained Invacare® specialist dealers! • Invacare® can only give a warranty for safe mobility aid driving behaviour - especially tipping stability - for unaltered standard drive programs! • Switch off the remote.
  • Page 91 ® Invacare - G50 SERVICE INSTRUCTIONS • Installation of the remote is carried out in reverse order. • Update the software, in case a newer version is available. • Customise the driving programme with the programming software, if required. • Check all vehicle functions.

  • Page 92: Updating The Driving Program

    • Changes to the drive program may only be carried out by trained Invacare® specialist dealers! • Invacare® can only give a warranty for safe mobility aid driving behaviour - especially tipping stability - for unaltered standard drive programs! Pre-requisites: •...

  • Page 93: Invacare Service Instructions

    Retrofitting the joystick left/right Note If the Powerchair is equipped with a height-adjustable, swing away joystick box bracket, then an appropriate joystick box bracket for the other side must be ordered from Invacare. Requirements: • 6 mm Allen key Note Please keep small parts such as screws and grommets safe during dismantling.
  • Page 94 ® SERVICE INSTRUCTIONS Invacare - G50 • Press the release button and tip the seat backward carefully. • Carefully pull the seat upward and to the front. Depending on the position of the tilt of the seat, this will remain in the position shown on the right...

  • Page 95: Retrofitting

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.18.2 Retrofitting • Pull the plug (1) of the bus cable out of the remote. • Carefully pull the bus cable out of the cable clips under the edge of the seat. • Open the reusable cable binders (1) by...
  • Page 96 ® SERVICE INSTRUCTIONS Invacare - G50 • Push the bus cable through the loops of the reusable cable binders on the other side. • Carefully press the bus cable into the cable clips under the edge of the seat. • Loosen and remove the fixation screw (1) of the joystick box bracket.

  • Page 97: Repairing A Flat Tyre

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.19 Repairing a flat tyre WARNING: Danger of crushing! The mobility device is very heavy. Injury hazard to hands and feet! • You should seek help from a second person. Injury hazard caused by uncontrolled movement of the mobility device! •...
  • Page 98 ® SERVICE INSTRUCTIONS Invacare - G50 Repairing a flat tyre ATTENTION: Explosion hazard! There is considerable pressure in the tyre. Danger of injury! Parts can be thrown out and injure you if you do not evacuate all the air from the tyre.

  • Page 99: Repairing A Flat Tyre (Type 3.10/4.50-6 Pneumatic Tyres)

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.19.2 Repairing a flat tyre (type 3.10/4.50-6 pneumatic tyres) Pre-requisites: • Flat screwdriver • 10 mm Allen key • 24 mm open-ended spanner • Repair kit for tyres with inner tube or a new hose.
  • Page 100 ® SERVICE INSTRUCTIONS Invacare - G50 Repairing a flat tyre ATTENTION: Explosion hazard! There is considerable pressure in the tyre. Danger of injury! Parts can be thrown out and injure you if you do not evacuate all the air from the tyre.

  • Page 101: Replacing The Safety Belt

    ® Invacare - G50 SERVICE INSTRUCTIONS 7.20 Replacing the safety belt Requirements: • 10 mm socket spanner • 4 mm Allen key Dismantling the safety belt: • Remove the plastic cap (5). • Loosen the bolt (3) and the associated nut (in the figure this is covered) with a 4 mm Allen key and a 10 mm socket spanner.

  • Page 102: Refurbishment

    • With some seating systems and seat depths, the position of the seat needs to be moved backward! If necessary, a new seat frame that allows two different seat positions will need to be obtained from Invacare (available as a spare part)! Note! Use the different holes in the seat support to adjust the seat position (front or rear position).

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