Invacare FDX Service Manual
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Invacare FDX Service Manual

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Invacare
FDX
®
SERVICE MANUAL
Edition: 26.03.2014

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Summary of Contents for Invacare FDX

  • Page 1 Invacare ® SERVICE MANUAL Edition: 26.03.2014...
  • Page 2 +44 (0)1656 77 62 20 Pencoed uk@invacare.com Bridgend CF35 5HZ WWW: www.invacare.co.uk United Kingdom Invacare Mecc San s.r.l. +39 0445 38 00 59 Via dei Pini, 62 Fax: +39 0445 38 00 34 I - 36016 Thiene (VI) italia@invacare.com Italia WWW: www.invacare.it...
  • Page 3 ® Invacare - FDX SERVICE MANUAL Invacare Ireland Ltd. +353 18 10 70 84 Unit 5 Seatown Business Campus Fax: +353 18 10 70 85 Seatown Rd, Swords ireland@invacare.com County Dublin WWW: www.invacare.ie Ireland ( (Kundeservice): Invacare® AS +47 (0)22 57 95 00...

  • Page 4: Table Of Contents

    ® SERVICE MANUAL Invacare - FDX Table of contents Chapter Page 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 SAFETY AND FITTING INSTRUCTIONS...
  • Page 5 ® Invacare - FDX SERVICE MANUAL TEST PROCEDURES Testing the motor Testing the electro-mechanical parking brake REPAIR WORK Covers 8.1.1 Open front cover 8.1.2 Opening the rear cover 8.1.3 Opening the lateral cover 8.1.4 Opening the cover of the rear wheel cantilever arm Electronic modules 8.2.1...
  • Page 6 ® SERVICE MANUAL Invacare - FDX Replacing the spring in the rear 8.10 Replacing the anti-tipper wheels 8.11 Drive unit 8.11.1 Replacing the motor / gearbox unit 8.11.2 Replacing or rotating the motor / gearbox unit sealing ring 8.11.3 Replacing the motor / gearbox coupling 8.11.4...
  • Page 7 ® Invacare - FDX SERVICE MANUAL 8.18.4 Adjusting the seat width/ backrest width 8.18.4.1 Adjusting the seat width 8.18.4.2 Adjusting the seat width (legrest LNX) 8.18.4.3 Adjusting the backrest width 8.18.4.4 Adjusting the Flex3 backrest 8.19 Fixation rings 8.19.1 Replacing a front fixation ring 8.19.2...

  • 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 - FDX SERVICE MANUAL 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 MANUAL Invacare - FDX 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 - FDX SERVICE MANUAL 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 MANUAL Invacare - FDX 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 MANUAL Invacare - FDX 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: Arrangement Of Sub-Assemblies And Components

    ® Invacare - FDX SERVICE MANUAL Arrangement of sub-assemblies and components Overview In the rear under the seat: Electronic modules The electronic modules are located under the rear cover: (1) – Electronic module (2) – Actuator module (optional) (3) – Lighting circuit board (optional & not...

  • Page 16: Electronic Modules

    ® SERVICE MANUAL Invacare - FDX Electronic modules Various different types of electronic modules can be installed in the wheelchair. Before you connect components of the wheelchair such as adjustment motors or actuators to the electronic module, make sure you know exactly which electronic module is installed. The following table provides an overview.

  • Page 17: Acs 2 Pmb70 / Acs 2 Pmb70L Electronic Module

    ® Invacare - FDX SERVICE MANUAL 4.2.1 ACS 2 PMB70 / ACS 2 PMB70L electronic module Connections 1) Battery 24V 2) Bus cable (to remote or ACT) 3) Bus cable (to remote or ACT) 4) Motor M1 5) Light 6) Motor M2 Rubber stoppers for free slots 2) &...

  • Page 18: Lighting Circuit Board

    ® SERVICE MANUAL Invacare - FDX 4.2.3.2 Actuator module ACT 4 Connections 1) ACI* 2) Bus cable (to remote or electronic module) 3) Bus cable (to remote or electronic module) 4) Actuator - channel 4 5) Actuator - channel 3...

  • Page 19: Remotes

    ® Invacare - FDX SERVICE MANUAL Remotes Various types of remotes can be installed on the wheelchair. Before you connect components of the wheelchair such as adjustment motors or actuators, make sure you know exactly which remote is installed. The following table provides an overview.
  • Page 20 ® SERVICE MANUAL Invacare - FDX Remotes Designations Remarks REM B Can be connected to - ACS 2 PMB70 - ACS 2 PMB70L - ACS PMA90LG power modules. REM 550 Can be connected to - ACS 2 PMB70 - ACS 2 PMB70L - ACS PMA90LG power modules.

  • Page 21: Maintenance Plan (Once A Year)

    ® Invacare - FDX SERVICE MANUAL Maintenance plan (once a year) CAUTION! Danger of injury and damage to property, if the maximum speed reduction on a wheelchair with a lifter does not function correctly! The wheelchair’s control unit must reduce the maximum possible speed as soon as the lifter is raised.
  • Page 22 ® SERVICE MANUAL Invacare - FDX ü Component Check for Measures Remarks ● Motors ● Check motors See chapter 7.1 Drive units, coupling ● Check functions ● Check the carbon See chapter 8.11.1 mechanism during drive brushes, replace if and 8.11.4...
  • Page 23 ® Invacare - FDX SERVICE MANUAL ü Component Check for Measures Remarks ● Remote, status ● Analyse the error / See chapter 6.2 Remote / display flashing flash code electronic ● Fixations ● Tighten fixations, module replace if necessary ● Cables and plug-in ●...

  • Page 24: Operational Faults

    The tables for rectification of operational faults listed in the following chapters are only an excerpt from the original manufacturer's manuals. You can obtain the original manuals from Invacare®. If you have problems with the mobility aid, please proceed as follows: ●...

  • Page 25: Drive Fault Diagnosis

    ® Invacare - FDX SERVICE MANUAL Drive fault diagnosis PROBLEM OTHER POSSIBLE SOLUTION DOCUMENTATION SYMPTOMS CAUSE Mobility aid will The remote Drive motors Engage drive See operating not start status display disengaged motors manual illuminates normally and displays blink code 5/6.
  • Page 26 ® SERVICE MANUAL Invacare - FDX PROBLEM OTHER POSSIBLE SOLUTION DOCUMENTATION SYMPTOMS CAUSE electronic cool down. module to decrease voltage Motors stop None High motor Leave mobility aid and do not loading causes switched on and start again electronic allow electronic module to module to work.
  • Page 27 ® Invacare - FDX SERVICE MANUAL PROBLEM OTHER POSSIBLE SOLUTION DOCUMENTATION SYMPTOMS CAUSE Cabling to check cabling See chapter 8.4.5. electronic module or joystick defective Electronic Replacing the See chapter 8.2.2. module electronic module defective Corroded Water, salt or Check cabling, See chapter 8.4.5.
  • Page 28 ® SERVICE MANUAL Invacare - FDX PROBLEM OTHER POSSIBLE SOLUTION DOCUMENTATION SYMPTOMS CAUSE Batteries Replace batteries See chapter 8.4.1. defective LEDs blinking Charging unit Replace charging See charging unit on charging defective unit operating manual unit Short charging None One of the Replace batteries See chapter 8.4.1.

  • Page 29: Rem Remotes: Error Codes And Diagnostic Codes

    ® Invacare - FDX SERVICE MANUAL REM remotes: Error codes and diagnostic codes Note The following table is applicable to remotes G90A, REM A, REM B und REM 550, which are connected to electronic modules ACS 2 PMB70, ACS 2 PMB70L, ACS 2 PMB90LG.
  • Page 30 ® SERVICE MANUAL Invacare - FDX BLINK CODE POSSIBLE CAUSE SOLUTION DOCUMENTATION 11 x blink Drive motors overloaded / Switch remote on and off / overheated wait if necessary 12 x blink Compatibility problems Remove incorrect module See chapter 8.2.2.

  • Page 31: Diagnosis Of Charging Device Faults

    Defective mains supply cable. Check the mains supply cable. Replace damaged cables or send the battery charger to Invacare® Service for repair. LEDs are burnt out Send the battery charger to Invacare® Service for repair. An internal fuse might be burnt Send the battery charger to out.

  • Page 32: Test Procedures

    ® SERVICE MANUAL Invacare - FDX Test procedures Testing the motor Requirements: ● Phillips screwdriver size 2 ● digital multimeter with resistance measurement ● Remove the rear panel as described in Chapter 8.1.2. ● Pull the motor plug (1) out of the electronic module.

  • Page 33: Testing The Electro-Mechanical Parking Brake

    Connect the digital multimeter to the adjacent central motor plug contacts (3) and measure the resistance between the contacts. ● If there is a defect, replace the motor and send it to Invacare® Service for inspection or repair. Note A resistance of between 40 and 80 ohms indicates an intact brake.
  • Page 34 ® SERVICE MANUAL Invacare - FDX CAUTION! Material damage can be caused to the electronic module due to short-circuit in the electro- mechanical brake. ● NEVER connect an electro-mechanical brake to an intact electronic module with a short- circuit! ● Always replace short-circuited brakes immediately.

  • Page 35: Repair Work

    ® Invacare - FDX SERVICE MANUAL Repair Work CAUTION! Danger of injury and damage to property, if the maximum speed reduction on a wheelchair with a lifter does not function correctly! ● The wheelchair’s control unit must reduce the maximum possible speed as soon as the lifter is raised.

  • Page 36: Opening The Rear Cover

    ® SERVICE MANUAL Invacare - FDX 8.1.2 Opening the rear cover Removing the rear cover: ● Loosen and remove both of the knurled head screws (1). ● Remove the rear cover (2). Installing the rear cover: ● Assemble the parts in reverse order.

  • Page 37: Opening The Lateral Cover

    ® Invacare - FDX SERVICE MANUAL 8.1.3 Opening the lateral cover Requirements: ● 10 mm socket wrench ● 6 mm Allen key ● Two oblong wooden blocks, at least 14 x 14 x 30 cm Removing the lateral cover: ●...
  • Page 38 ® SERVICE MANUAL Invacare - FDX Installing the lateral cover: ● Connect the plug-in connections if there are tail lights installed in the lateral cover. Make sure that the markings (1 = red tail light) and (2 = yellow flasher) on the power supply cable and on...
  • Page 39 ® Invacare - FDX SERVICE MANUAL ● Push the cover from the side between the seat and the chassis. ● Position both screws (1) including the washers and tighten the screws hand-tight.

  • Page 40: Opening The Cover Of The Rear Wheel Cantilever Arm

    ® SERVICE MANUAL Invacare - FDX 8.1.4 Opening the cover of the rear wheel cantilever arm Requirements: ● 4 mm Allen key Removing the rear cover: ● Use the 4 mm Allen key to loosen and remove the hexagon socket head screw (1).

  • Page 41: Electronic Modules

    ● Alterations to the drive programme must only be carried out by authorised Invacare® dealers! ● Invacare® can only assume a warranty for the safe vehicle handling of the wheelchair – in particular tipping stability - for this standard, unaltered drive programme! Note All electronic modules are supplied with a standard drive programme.
  • Page 42 ® SERVICE MANUAL Invacare - FDX Uninstalling electronic modules: ● Remove the rear cover, as described in chapter 8.1.2. ● Take exact note of the positions of all cables and the sockets that they are connected to. Mark the connectors and sockets or take a photograph with a digital camera.
  • Page 43 ® Invacare - FDX SERVICE MANUAL ● Use the 8 mm socket wrench to loosen and remove the nuts (1). ● Remove the actuator module together with the mounting plate (2). ● If the actuator module is to be replaced: Use the 7 mm socket wrench and a Phillips screwdriver to loosen and remove the nuts (3).

  • Page 44: Replacing The G-Trac Sensor

    ® SERVICE MANUAL Invacare - FDX 8.2.3 Replacing the G-Trac sensor Requirements: ● 10 mm socket wrench ● Side cutting pliers ● Cable ties Uninstalling the G-Trac sensor: ● Switch the electronic of the wheelchair OFF. ● Remove the front, rear and right lateral covers, as described in chapter 8.1.1, 8.1.2 and 8.1.3.
  • Page 45 ® Invacare - FDX SERVICE MANUAL ● Use the 10 mm socket wrench to loosen and remove the self-securing nuts (3) including the washers. ● Pull the G-Trac sensor (2) off of the carriage bolt (1) which is inserted in the spring seat.

  • Page 46: Drive Program Selection After Component Replacement

    ® SERVICE MANUAL Invacare - FDX 8.2.4 Drive program selection after component replacement The drive program is saved in the REM remote, and also in the DX, ACS or ACS 2 electronic module. If one of these two components is replaced, the system must be told which of the components has not been replaced so that it knows which contains the current controller profile.

  • Page 47: Profile Selection With Remote Rem A Or Rem B

    ® Invacare - FDX SERVICE MANUAL 8.2.4.2 Profile selection with remote REM A or REM B ● Plug the plug into the remote or the ACS 2 controller. ● LEDs (1) and (4) blink. ● Use the bottom rocker switch (5) to select where the required controller profile is saved.

  • Page 48: Profile Selection With Remote Rem 550

    ® SERVICE MANUAL Invacare - FDX 8.2.4.3 Profile selection with remote REM 550 ● Plug the plug into the remote or the ACS 2 controller. ● The display (2) shows that you need to select a profile. ● Use the bottom rocker switch (3) to select where the required controller profile is saved.

  • Page 49: Updating The Driving Program

    ● Alterations to the drive program must only be carried out by trained Invacare®-dealers! ● Invacare® can only assume a warranty for the safe vehicle handling of the wheelchair – in particular tipping stability - for unaltered standard drive programs! Pre-requisites: ●...

  • Page 50: Batteries, Cables & Battery Chargers

    ® SERVICE MANUAL Invacare - FDX Batteries, cables & battery chargers 8.4.1 Removing the batteries CAUTION: Danger of injury and danger of damage to property if the batteries are handled incorrectly! ● The installation of new batteries may only be performed by authorised technicians.
  • Page 51 ® Invacare - FDX SERVICE MANUAL ● Disconnect the plug-in connection (1) of the front battery (2). ● Remove the rear cover, as described in chapter 8.1.2. ● Take exact note of the positions of all cables and the sockets that they are connected to. Mark the connectors and sockets or take a photograph with a digital camera.
  • Page 52 ® SERVICE MANUAL Invacare - FDX ● Disconnect the plug-in connection (1) of the rear battery (2). ● Disconnect the battery cable from the electronic module. ● Lift the electronic module bracket up and remove it. Pull the bracket towards the rear and let it hang over the back end of the wheelchair.

  • Page 53: Replacing Batteries / Replacing Battery Cables

    ® Invacare - FDX SERVICE MANUAL 8.4.2 Replacing batteries / replacing battery cables Note To replace the fuse, the battery cable with the fuse attached to it must be replaced. CAUTION: Danger of injury and danger of damage to property if the batteries are handled incorrectly! ●...
  • Page 54 ® SERVICE MANUAL Invacare - FDX Uninstalling batteries/battery cables: ● Remove the batteries, as described in chapter 8.4.1. Positive terminal (+): ● Remove the cable ties (1) with side cutting pliers. ● Lift the battery terminal cap (2) off and move it up the cable and out of the way.

  • Page 55: How To Handle Damaged Batteries Correctly

    Wash all objects that have come into contact with acid with lots of water. Disposing of dead or damaged batteries correctly Dead or damaged batteries can be given back to your dealer or directly to Invacare®. 8.4.4 Replacing the main fuse Note To replace the fuse, the battery cable with the fuse attached to it must be replaced.

  • Page 56: Checking The Cables

    ® SERVICE MANUAL Invacare - FDX 8.4.5 Checking the cables Requirements: ● Side cutting pliers ● Cable ties ● Remove the covers, disconnect the battery plug connections and pull the batteries out of the battery compartment, as described in chapter 8.4.1.
  • Page 57 ® Invacare - FDX SERVICE MANUAL ● Check all cables for visible damage and crushing. Replace damaged cables. ● Pull on each plug (1) carefully. The plug must not come out of the socket. ● If a plug is loose, apply slight pressure to push the plug into the socket. The plug must snap in place securely.

  • Page 58: Replacing The Battery Boxes

    ® SERVICE MANUAL Invacare - FDX Replacing the battery boxes Requirements: ● 7 mm socket wrench ● 8 mm socket wrench ● 10 mm socket wrench ● 13 mm socket wrench ● 16 mm socket wrench ● 22 mm socket wrench ●...

  • Page 59: Lighting System

    ® Invacare - FDX SERVICE MANUAL Lighting system Note There are two different lighting units. A conventional lighting unit with bulbs and a LED lighting unit. 8.6.1 Replacing light bulbs in the front (conventional lighting system) Requirements: ● Phillips screwdriver size 2 ●...

  • Page 60: Replacing The Complete Head Lamp Assembly (Conventional Lighting System Until 03/12)

    ® SERVICE MANUAL Invacare - FDX 8.6.3 Replacing the complete head lamp assembly (conventional lighting system until 03/12) Requirements: ● Phillips screwdriver size 2 ● Side cutting pliers ● Cable ties Uninstalling head lamps: ● Remove the rear cover, as described in chapter 8.1.2.
  • Page 61 ® Invacare - FDX SERVICE MANUAL ● Loosen both of the cap nuts (1) with an 8 mm open-end wrench and remove the head lamp with the bracket from the rubber mounting. ● Not shown in the illustration are two Phillips head screws, with which the head lamp is secured to the bracket.

  • Page 62: Replacing Headlamps Completely (Conventional Lighting System Starting 03/2012)

    ® SERVICE MANUAL Invacare - FDX 8.6.4 Replacing headlamps completely (conventional lighting system starting 03/2012) Requirements: ● Phillips screwdriver size 2 ● Open-end wrench 8 mm ● Side cutting pliers ● Cable ties Uninstalling headlights: ● Remove the rear cover, as described in chapter 8.1.2.
  • Page 63 ® Invacare - FDX SERVICE MANUAL ● Loosen both of the nuts (1) with an 8 mm open-end wrench and remove the headlight with the bracket from the rubber mounting. ● Loosen both Phillips head screws (2) to remove the headlight from the bracket.

  • Page 64: Replacing The Head Lamps Completely (Led Lighting System Until 03/2012)

    ® SERVICE MANUAL Invacare - FDX 8.6.5 Replacing the head lamps completely (LED lighting system until 03/2012) Requirements: ● 3 mm Allen key ● Side cutting pliers ● Cable ties Uninstalling head lamps: ● Remove the rear cover, as described in chapter 8.1.2.
  • Page 65 ® Invacare - FDX SERVICE MANUAL Installing head lamps: ● Assemble all parts again in reverse order. ● Install the cables carefully and secure them with cable ties. Make sure that the cables not are not pinched or stretched. ●...

  • Page 66: Replacing Headlamps Completely (Led Lighting System Starting 03/2012)

    ® SERVICE MANUAL Invacare - FDX 8.6.6 Replacing headlamps completely (LED lighting system starting 03/2012) Requirements: ● 4 mm Allen wrench ● Side cutting pliers ● Cable ties Uninstalling headlights: ● Remove the rear cover, as described in chapter 8.1.2.
  • Page 67 ® Invacare - FDX SERVICE MANUAL ● Loosen the hexagon socket head screw (1) with a 4 mm Allen wrench and remove the headlight from the bracket. ● Replace the headlight. Installing headlights: ● Assemble all parts again in reverse order.

  • Page 68: Replacing The Head Lamp Bracket (Conventional Lighting System Until 03/0212)

    ® SERVICE MANUAL Invacare - FDX 8.6.7 Replacing the head lamp bracket (conventional lighting system until 03/0212) Requirements: ● Phillips screwdriver size 2 ● 8 mm socket wrench Uninstalling the head lamp bracket: ● Loosen both of the cap nuts (1) with an 8 mm socket wrench and remove the head lamp with the bracket from the rubber mounting.

  • Page 69: Replacing Headlamp Brackets (Conventional Lighting System Starting 03/2012)

    ® Invacare - FDX SERVICE MANUAL 8.6.8 Replacing headlamp brackets (conventional lighting system starting 03/2012) Requirements: ● Phillips screwdriver size 2 ● Open-end wrench 8 mm Uninstalling the tail light bracket: ● Loosen both of the nuts (1) with an 8 mm open-end wrench and remove the headlight with the bracket from the rubber mounting.

  • Page 70: Replacing The Front Bulb Holder (Led Lighting System Until 03/2012)

    ® SERVICE MANUAL Invacare - FDX 8.6.9 Replacing the front bulb holder (LED lighting system until 03/2012) Requirements: ● 4 mm Allen key ● 8 mm spanner Dismantling the bulbholder: ● Loosen the Allen screw (1) using a 4 mm Allen key and remove the headlight from the mounting.

  • Page 71: Replacing A Light Bulb In The Rear (Conventional Lighting System)

    ® Invacare - FDX SERVICE MANUAL 8.6.10 Replacing a light bulb in the rear (conventional lighting system) Requirements: ● Phillips screwdriver size 2 ● Loosen the Phillips head screw in the transparent cover of the tail lamp / turn indicator combination.

  • Page 72: Replacing The Complete Tail Lamp Assembly (Conventional Lighting System)

    ® SERVICE MANUAL Invacare - FDX 8.6.12 Replacing the complete tail lamp assembly (conventional lighting system) Requirements: ● 8 mm socket wrench Uninstalling the tail lamp: ● Remove the front cover and the rear covers, as described in chapters 8.1.1 and 8.1.2.
  • Page 73 ® Invacare - FDX SERVICE MANUAL ● Remove both plastic covers (2). ● Use an 8 mm socket wrench to loosen both nuts. ● Remove the nuts together with the washers. ● Pull the tail lamp (1) towards the rear and remove from the tail lamp bracket (3).

  • Page 74: Replacing The Tail Lamp Bracket (Conventional Lighting System)

    ® SERVICE MANUAL Invacare - FDX 8.6.13 Replacing the tail lamp bracket (conventional lighting system) Requirements: ● 3 mm Allen key Uninstalling the head lamp bracket: ● Remove the front, rear and lateral covers, as described in chapter 8.1.1, 8.1.2 and 8.1.3.

  • Page 75: Replacing The Tail Lamps Completely (Led Lighting System)

    ® Invacare - FDX SERVICE MANUAL 8.6.14 Replacing the tail lamps completely (LED lighting system) Note Individual LEDs are not intended to be replaced. The LEDs are replaced along with the complete bracket assembly. This means that the complete red or yellow tail lamp is replaced.

  • Page 76: Rear Wheels

    ® SERVICE MANUAL Invacare - FDX Rear wheels 8.7.1 Replacing a rear wheel Requirements: ● Small flat screwdriver ● 16 mm socket wrench ● Two oblong wooden blocks, at least 14 x 14 x 30 cm WARNING: Danger of crushing! The wheelchair is very heavy.

  • Page 77: Replacing A Rear Wheel Fork

    ® Invacare - FDX SERVICE MANUAL 8.7.2 Replacing a rear wheel fork WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ● Use proper lifting techniques. Danger of injury due to uncontrolled movement of the wheelchair! ●...
  • Page 78 ® SERVICE MANUAL Invacare - FDX ● Prop up the wheelchair on multiple wooden blocks. Use proper lifting techniques. ● Use the 22 mm socket wrench to loosen and remove the self-securing nut (2). ● Pull the wheel fork (4) downwards out of the rear wheel cantilever arm (1). Pay attention to the washers (3), spacer washers and the separable ball bearings (not visible in the illustration).

  • Page 79: Adjusting The Wheel Fork

    ® Invacare - FDX SERVICE MANUAL 8.7.3 Adjusting the wheel fork WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ● Use proper lifting techniques. Requirements: ● 22 mm socket wrench ●...
  • Page 80 ® SERVICE MANUAL Invacare - FDX ● Tilt the wheelchair forward over the drive wheels, until the anti-tipper wheels prevent it from tipping any farther. Use proper lifting techniques. ● Swivel the wheels (5) so that they point upward. ●...

  • Page 81: Drive Wheels

    ® Invacare - FDX SERVICE MANUAL Drive wheels 8.8.1 Replacing a drive wheel WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ● Use proper lifting techniques. Danger of injury due to uncontrolled movement of the wheelchair! ●...

  • Page 82: Replacing A Tyre

    ® SERVICE MANUAL Invacare - FDX 8.8.2 Replacing a tyre Requirements: ● 5 mm Allen key ● Two oblong wooden blocks, at least 14 x 14 x 30 cm ● Three c-clamps with plastic caps ● Torque wrench 5 – 30 Nm (or similar) ●...

  • Page 83: Replacing A Drive Wheel Hub

    ® Invacare - FDX SERVICE MANUAL 8.8.3 Replacing a drive wheel hub WARNING! Danger of damage to the wheelchair! 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 84 ® SERVICE MANUAL Invacare - FDX ● Assemble the parts of the wheel hub in reverse order. ● Between the wheel and the motor / drive unit, distance rings of various widths are inserted to adjust the clearance between the wheel and the motor. Select the correct width for the distance rings.

  • Page 85: Replacing The Spring In The Rear

    - FDX SERVICE MANUAL Replacing the spring in the rear Note Invacare® recommends always replacing both springs to ensure optimum performance of the wheelchair. WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ●...
  • Page 86 ® SERVICE MANUAL Invacare - FDX With a 12.5 x 2.25 inch wheel in conjunction with a hard spring, there is a shim located on top of the spring. During the next work procedure, pay attention to this shim. ●...

  • Page 87: Replacing The Anti-Tipper Wheels

    ® Invacare - FDX SERVICE MANUAL 8.10 Replacing the anti-tipper wheels Requirements: ● Small flat screwdriver ● Two 13 mm socket wrenches Uninstalling an anti-tipper wheel: ● Carefully remove the black plastic cap (3) from the middle of the anti-tipper wheel (2) with a small flat screwdriver.

  • Page 88: Drive Unit

    ® SERVICE MANUAL Invacare - FDX 8.11 Drive unit 8.11.1 Replacing the motor / gearbox unit WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ● Use proper lifting techniques. Danger of injury due to uncontrolled movement of the wheelchair! ●...
  • Page 89 ® Invacare - FDX SERVICE MANUAL ● Use the 13 mm socket wrench to loosen the four screws (1). ● Hold the motor / gearbox unit with one hand. ● Completely remove the four screws, including the washers. ● Remove the motor / gearbox unit.

  • Page 90: Replacing Or Rotating The Motor / Gearbox Unit Sealing Ring

    ® SERVICE MANUAL Invacare - FDX 8.11.2 Replacing or rotating the motor / gearbox unit sealing ring CAUTION: Danger of crushing! The motor / gearbox unit is very heavy. Danger of injury to the hands! ● Pay attention to the heavy weight.

  • Page 91: Replacing The Motor / Gearbox Coupling

    ® Invacare - FDX SERVICE MANUAL 8.11.3 Replacing the motor / gearbox coupling CAUTION: Danger of crushing! The motor / gearbox unit is very heavy. Danger of injury to the hands! ● Pay attention to the heavy weight. Requirements: ● 10 mm socket wrench Uninstalling the motor / gearbox coupling: ●...
  • Page 92 ® SERVICE MANUAL Invacare - FDX Installing the motor / gearbox coupling: ● Place the new clutch (7) on the motor axle. Pay attention to the position of the groove. ● Position the locking ring (5) on the motor (4) or the gearbox (1).

  • Page 93: Replacing The Carbon Brushes

    ® Invacare - FDX SERVICE MANUAL 8.11.4 Replacing the carbon brushes Note Always replace all carbon brushes on both motors at the same time. WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ●...
  • Page 94 ® SERVICE MANUAL Invacare - FDX ● Loosen all four plastic caps (3) with a flat screwdriver and remove the caps. ● Pull the carbon brushes (4) out of their holders slightly. Take note of the installation position and orientation of the carbon brushes.

  • Page 95: Running The Motor In

    ® Invacare - FDX SERVICE MANUAL 8.11.5 Running the motor in Note The following procedure is necessary to run in the motor after replacing the carbon brushes to guarantee maximum performance. WARNING: Danger of accidents! Danger to people, the surroundings and wheelchair! ●...

  • Page 96: Replacing The Motor / Gearbox Fixation And Rear Wheel Cantilever Arm

    ® SERVICE MANUAL Invacare - FDX 8.12 Replacing the motor / gearbox fixation and rear wheel cantilever WARNING: Danger of crushing! The wheelchair is very heavy. Danger of injury to the hands and feet! ● Use proper lifting techniques. Danger of injury due to uncontrolled movement of the wheelchair! ●...
  • Page 97 ® Invacare - FDX SERVICE MANUAL ● Use the 22 mm socket wrench to loosen and remove the self-securing nut (2). ● Remove the washer. ● Pull the motor / gearbox fixation and rear wheel cantilever arm off of the pivot point.

  • Page 98: Seat Adjustment Standard

    ® SERVICE MANUAL Invacare - FDX 8.13 Seat adjustment standard 8.13.1 Seat / seat frame (without lifter) Note This chapter describes how to replace the seat frame on a wheelchair without a lifter or tilt module. To replace a lifter or tilt module, please follow the procedures explained in chapter 8.13.2.
  • Page 99 ® Invacare - FDX SERVICE MANUAL ● Insert a suitable wooden block (2) between the seat (1) and the chassis (3). This will prevent the seat from falling down when you loosen and remove the screws. WARNING: Danger of crushing! The seat is very heavy.
  • Page 100 ® SERVICE MANUAL Invacare - FDX Uninstalling the seat frame: A – front seat frame B – rear seat frame ● Use a 6 mm Allen key to loosen the hexagon socket head screws (2). ● Pull the seat frame (1) up and off.

  • Page 101: Replacing The Tilt Module / Lifter Module

    ® Invacare - FDX SERVICE MANUAL 8.13.2 Replacing the tilt module / lifter module 8.13.2.1 Replacing the tilt module (without lifter) Note This chapter describes how to replace the tilt module on a wheelchair without a lifter. Similar tasks are described In the following chapters: ●...
  • Page 102 ® SERVICE MANUAL Invacare - FDX ● Completely remove both knurled head screws (1) including the washers. ● Remove the cover (2). ● Disconnect the plug from the actuator module. ● Open the cable clips on the underside of the seat.
  • Page 103 ® Invacare - FDX SERVICE MANUAL ● Use the 6 mm Allen key to loosen and remove the four hexagon socket head screws (3) on both sides of the wheelchair. ● Remove the screws and the washers. ● Lift the tilt module (1) up off of its brackets (2).

  • Page 104: Replacing The Lifter / Tilt Module

    ® SERVICE MANUAL Invacare - FDX 8.13.2.2 Replacing the lifter / tilt module Note This chapter describes how to replace the seat frame on a wheelchair with a lifter / tilt module. Similar tasks are described In the following chapters: ●...
  • Page 105 ® Invacare - FDX SERVICE MANUAL ● Completely remove both knurled head screws (1) including the washers. ● Remove the cover (2). ● Disconnect the plug from the actuator module. ● Open the cable clips on the underside of the seat.
  • Page 106 ® SERVICE MANUAL Invacare - FDX ● Open the power supply chain of the lifter: - Flip the cover (1) up. - Pull the flap (2) out of the cover. - Repeat this procedure link by link. ● Remove both cable ties that secure the cable at the ends of the power supply chain.
  • Page 107 ® Invacare - FDX SERVICE MANUAL ● Use the 6 mm Allen key to loosen and remove the four hexagon socket head screws (3) on both sides of the wheelchair. ● Remove the screws and the washers. ● Lift the tilt module (1) up off of its brackets (2).

  • Page 108: Replacing The Tilt Actuator

    ® SERVICE MANUAL Invacare - FDX 8.13.2.3 Replacing the tilt actuator Note This chapter only describes how to replace the tilt actuator. To replace the complete tilt module, please proceed as described in chapters 8.13.2.1 and 8.13.2.2. WARNING: Danger of crushing! The seat is very heavy.
  • Page 109 ® Invacare - FDX SERVICE MANUAL WARNING: Danger of crushing! The seat is very heavy. Danger of injury to the hands if the seat falls down unintentionally! ● Use proper lifting techniques. ● Carefully secure the seat against falling down unintentionally before removing the actuator.

  • Page 110: Replacing The Lifter Actuator

    ® SERVICE MANUAL Invacare - FDX 8.13.2.4 Replacing the lifter actuator Note This chapter only describes how to replace the lifter actuator. To replace the complete lifter module, please follow the procedures explained in chapter 8.13.2.2. Possible methods: The lifter actuator is very easy to replace when the lifter is in a raised position. It is a little more complicated to replace when the lifter is in a lowered position and cannot be raised due to a fault.
  • Page 111 ® Invacare - FDX SERVICE MANUAL ● Completely remove both knurled head screws (1) including the washers. ● Remove the cover (2). ● Disconnect the plug from the actuator module. ● Open the cable clips on the underside of the seat.
  • Page 112 ® SERVICE MANUAL Invacare - FDX Method 2 - uninstalling the lifter actuator with the lifter lowered WARNING: Danger of crushing! The seat is very heavy. Danger of injury to hands and feet! ● Use proper lifting techniques. Requirements: ● Spring-ring pliers ●...
  • Page 113 ® Invacare - FDX SERVICE MANUAL ● Loosen and remove the hexagon socket head screw (1) of the seat frame on the left and on the right side of the wheelchair WARNING: Danger of crushing! The seat is very heavy. Danger of injury to hands and feet! ●...
  • Page 114 ® SERVICE MANUAL Invacare - FDX ● Swing the tilt lever arm (1) forwards. ● Remove the retaining rings (1) from the front bolt (4) of the lifter actuator (2) with the spring- ring pliers. ● Pull the bolt out of the guide with a pair of bent-nose pliers, until the bolt almost touches the tilt...
  • Page 115 ® Invacare - FDX SERVICE MANUAL ● Lift the tilt actuator (5) up a little. ● Pull the bolt (4) of the lifter actuator under the tilt actuator and out of the guide. ● Remove the retaining rings (1) from the rear bolt (3) of the lifter actuator (2) with the spring- ring pliers.

  • Page 116: Seat Frame

    ® SERVICE MANUAL Invacare - FDX 8.13.3 Seat frame 8.13.3.1 Adjusting the seat width Note The seat width can be adjusted in stages between 38 and 53 cm. Please also observe the following chapter 8.13.3.2 on “adjusting the seat depth”.
  • Page 117 ® Invacare - FDX SERVICE MANUAL ● Pull or push the seat mounting plate (2) to the desired width. A scale (3) is included on the lower part of the seat support. You can read off the seat width in centimetres on the scale.

  • Page 118: Adjusting The Seat Depth

    ® SERVICE MANUAL Invacare - FDX 8.13.3.2 Adjusting the seat depth Note The seat depth can be adjusted in stages between 38 and 53 cm. Please also observe preceding chapter 8.13.3.1 on “adjusting the seat width”. Requirements: ● 4 mm Allen key ●...
  • Page 119 ® Invacare - FDX SERVICE MANUAL Seat Holes used in seat frame Holes used in seat frame Required seat support depth in front rear plate Order no.: 1524550 Order no.: 1524555 6 & 7 A & B SHORT 5 & 7 A &...
  • Page 120 ® SERVICE MANUAL Invacare - FDX ● Adjust the seat depth as described in the following chapters: - According to subchapter "Adjusting the seat depth without replacing the seat support plates" if the seat support plates do not have to be replaced.
  • Page 121 ® Invacare - FDX SERVICE MANUAL ● Pull the seat support to the desired length so that the Allen screws (5) can be fitted into the holes according to the table (see above). ● Refit the Allen screws (5) incl. the washers and tighten them.

  • Page 122: Centre-Mounted Legrest (Electric & Manual)

    ® SERVICE MANUAL Invacare - FDX 8.14 Centre-mounted legrest (electric & manual) Note The centre-mounted legrest is the only part of the wheelchair, in which screw sizes are indicated in inches. 8.14.1 Replacing the manually operated centre-mounted legrest WARNING: Danger of crushing! The legrest is very heavy.

  • Page 123: Replacing The Electrically Operated Centre-Mounted Legrest

    ® Invacare - FDX SERVICE MANUAL 8.14.2 Replacing the electrically operated centre-mounted legrest WARNING: Danger of crushing! The legrest is very heavy. Danger of injury to hands and feet! ● Pay attention to the heavy weight. Requirements: ● 6 mm Allen key ●...
  • Page 124 ® SERVICE MANUAL Invacare - FDX ● Use the 6 mm Allen key to loosen and remove the two hexagon socket head screws (2) on both sides of the wheelchair. ● Completely remove both hexagon socket head screws, including the washers.

  • Page 125: Replacing The Electrically Operated Centre-Mounted Legrest Lnx (Modulite Seat)

    ® Invacare - FDX SERVICE MANUAL 8.14.3 Replacing the electrically operated centre-mounted legrest LNX (Modulite seat) WARNING: Danger of crushing! The legrest is very heavy. Danger of injury to hands and feet! ● Pay attention to the heavy weight. Requirements: ●...

  • Page 126: Replacing An Electric Legrest Actuator

    ® SERVICE MANUAL Invacare - FDX Installing the electrically operated centre-mounted legrest LNX: ● Assemble the parts in reverse order. ● Test all functions of the wheelchair. 8.14.4 Replacing an electric legrest actuator WARNING: Danger of crushing! The legrest is very heavy. Danger of injury to hands and feet! ●...
  • Page 127 ® Invacare - FDX SERVICE MANUAL ● Use the 3/8" Allen key and a 1/2" socket wrench to loosen the screw (3). ● Use the 3/8" Allen key and a 1/2" socket wrench to loosen the screw (1). ● Remove the nuts including the washers, but leave the screw inserted in the screw hole, do not pull it completely out.

  • Page 128: Replacing The Calf Plate On The Centre-Mounted Legrest (Electric & Manual)

    ® SERVICE MANUAL Invacare - FDX 8.14.5 Replacing the calf plate on the centre-mounted legrest (electric & manual) Requirements: ● 1/64" Allen key A manual legrest can be seen in the illustration. The method of fixation to the seat is almost identical with both legrests.

  • Page 129: Replacing The Foot Plate On The Centre-Mounted Legrest (Electric & Manual)

    ® Invacare - FDX SERVICE MANUAL 8.14.6 Replacing the foot plate on the centre-mounted legrest (electric & manual) Requirements: ● 1/64" Allen key ● 1/4" Allen key A manual legrest can be seen in the illustration. The method of fixation to the seat is almost identical with both legrests.

  • Page 130: Back Unit

    ® SERVICE MANUAL Invacare - FDX 8.15 Back unit 8.15.1 Replacing the standard back Requirements: ● 5 mm Allen key ● Socket spanner, 13 mm Dismantling the back unit: ● Remove the back cushion. ● Loosen and remove the handwheels (3) and the Allen screws (4) including the washers on the left and right side of the mobility aid.

  • Page 131: Adjusting The Belt Back

    ® Invacare - FDX SERVICE MANUAL 8.15.2 Adjusting the belt back The belt back can be individually adapted to the back shape of the user. ● Pull apart the front and back of the back cushion (1) and remove it. Front and back of the back cushion is held together by Velcro.

  • Page 132: Replacing The Easyadapt Back

    ® SERVICE MANUAL Invacare - FDX 8.15.3 Replacing the EasyAdapt back Requirements: ● 5 mm Allen key ● Oblique pliers ● Cable ties Dismantling the back unit: ● Remove the back cushion. ● Pull the actuator cable out of the actuator module under the seat.

  • Page 133: Replacing / Adjusting The Universal Backrest Frame For The Easyadapt Backrest

    ® Invacare - FDX SERVICE MANUAL 8.15.4 Replacing / adjusting the universal backrest frame for the EasyAdapt backrest Requirements: ● Measuring tape ● Adhesive tape ● 13 mm open-end wrench ● 4 mm Allen key ● 5 mm Allen key ●...
  • Page 134 ® SERVICE MANUAL Invacare - FDX Installing and adjusting the universal backrest frame: CAUTION! The upholstery may get damaged. ● When adjusting the backrest frame, make sure the upholstery cannot collide with other components. ● Position both of the protective caps (8) in the lower ends of the lateral tubes (1).
  • Page 135 ® Invacare - FDX SERVICE MANUAL ● Screw the four Phillips screws (9) into the drill holes provided for this purpose on the backs of the tubes. The screws serve as limiters and prevent the backrest from sliding down too far.

  • Page 136: Back Unit With Ergonomic Length Adjustment

    ® SERVICE MANUAL Invacare - FDX 8.16 Back unit with ergonomic length adjustment 8.16.1 Adjusting the width Note Please also observe preceding chapter 8.13.3.1 on “adjusting the seat width”. By default the seat can be adjusted in width between 38 and 53 cm.

  • Page 137: Replacing The Planetary Gear

    ® Invacare - FDX SERVICE MANUAL 8.16.2 Replacing the planetary gear Requirements: ● 4 mm Allen key ● 5 mm Allen key ● 13 mm jaw spanner ● Size 2 Phillips recessed head spanner ● Snap ring pliers Dismantling the planetary gear: ●...
  • Page 138 ® SERVICE MANUAL Invacare - FDX Refitting the planetary gear: ● Refit the parts in reverse order. ● To conclude, check all the mobility aid functions.

  • Page 139: Replacing The Servo Motor

    ® Invacare - FDX SERVICE MANUAL 8.16.3 Replacing the servo motor Requirements: ● 4 mm Allen key ● 5 mm Allen key ● 10 mm socket spanner ● 13 mm jaw spanner ● Size 2 Phillips recessed head spanner ● Snap ring pliers Fitting the planetary gear: ●...

  • Page 140: Replacing The Microswitch

    ® SERVICE MANUAL Invacare - FDX 8.16.4 Replacing the microswitch Requirements: ● 4 mm Allen key ● Size 2 Phillips recessed head spanner Dismantling the microswitch: ● Loosen and remove the four Allen screws on the backrest plastic cover using a 4 mm Allen key.

  • Page 141: Fitting Back Plates To The Base Support Of The Back With Ergonomic Length Adjustment

    ® Invacare - FDX SERVICE MANUAL 8.16.5 Fitting back plates to the base support of the back with ergonomic length adjustment Requirements: ● 4 mm Allen key ● Loosen the three Allen screws (1) but do not remove them completely.

  • Page 142: Fitting The Handlebar

    ® SERVICE MANUAL Invacare - FDX 8.16.6 Fitting the handlebar Requirements: ● 4 mm Allen key ● Loosen and remove the four Allen screws (3) on the plastic cover. ● Remove the plastic cover (2). ● Remove the covers on the washer recesses (5).

  • Page 143: Replacing The Travelling Armrest

    ® Invacare - FDX SERVICE MANUAL 8.16.7 Replacing the travelling armrest Requirements: ● 4 mm Allen key Dismantling the travelling armrest ● Undo and remove the four Allen screws in the backrest plastic cover using a 4 mm Allen key.

  • Page 144: Replacing The Arm Support On The Travelling Armrest

    ® SERVICE MANUAL Invacare - FDX 8.16.8 Replacing the arm support on the travelling armrest Requirements: ● 4 mm Allen key Dismantling the arm support ● If necessary, remove the remote together with its cable. ● Rotate the armrest upwards.

  • Page 145: Retrofitting A Travelling Armrest

    ® Invacare - FDX SERVICE MANUAL 8.16.9 Retrofitting a travelling armrest NOTE The travelling armrest can only be retrofitted if the entire backrest is replaced since the torque support must be fitted with the correct guides. Retrofitting the travelling armrest ●...

  • Page 146: Seat Adjustment Modulite

    ® SERVICE MANUAL Invacare - FDX 8.17 Seat adjustment Modulite 8.17.1 Seat / seat frame Modulite (without lifter) Note This chapter describes how to replace the seat frame on a wheelchair without a lifter or tilt module. To replace a lifter or tilt module, please follow the procedures explained in chapter 8.17.4.
  • Page 147 ® Invacare - FDX SERVICE MANUAL ● Insert a suitable wooden block (2) between the seat (1) and the chassis (3). This will prevent the seat from falling down when you loosen and remove the screws. WARNING: Danger of crushing! The seat is very heavy.
  • Page 148 ® SERVICE MANUAL Invacare - FDX Uninstalling the seat support (adjustable seat / simple seat) Requirements: ● 6 mm Allen key ● 13 mm ring spanner or jaw spanner The following figure shows the seat support with the adjustable seat plate.

  • Page 149: Replacing The Tilt Actuator

    ® Invacare - FDX SERVICE MANUAL 8.17.2 Replacing the tilt actuator Note Replacing the actuator for the seat angle adjustment in the lifter / seat tilt adjustment module is also described. Requirements: ● Screwdriver, flat, width 6 mm ● 13 mm jaw spanner (2x) ●...

  • Page 150: Replacing The Lifter Actuator

    ® SERVICE MANUAL Invacare - FDX 8.17.3 Replacing the lifter actuator Requirements: ● Screwdriver flat, width 6 mm ● Large screwdriver ● Flat screwdriver ● Remove legrests. ● Run the lifter up to if possible. ● Switch the electronics OFF on the remote.

  • Page 151: Replacing The Lifter / Seat Angle Adjustment Module

    ® Invacare - FDX SERVICE MANUAL 8.17.4 Replacing the lifter / seat angle adjustment module Note Replacement of the seat angle adjustment module is performed in the same manner. ATTENTION: Danger of crushing! The seat/seat frame is very heavy. Danger of injury to hands and feet! ●...
  • Page 152 ® SERVICE MANUAL Invacare - FDX ● Remove the seat frame by removing the screws (1) with a T40 Torx wrench. ● Disconnect the actuator cable and microswitch cable from the cable harness.
  • Page 153 ® Invacare - FDX SERVICE MANUAL ● Loosen and remove the screws (2) incl. the washers with a 5 mm Allen key. ● Lift the module of the seat angle adjustment (1) from the adapter and replace it. ● Reassembly takes place in the reverse order.

  • Page 154: Replacing The Backrest Actuator

    ® SERVICE MANUAL Invacare - FDX 8.17.5 Replacing the backrest actuator Dismantling the backrest actuator: ● Pull the cable off directly where it is connected to the actuator (1) ● Detach the bracket of the actuator at the top and bottom; to do this, slide the bolts (3) to the side using the lever (4) and tilt the actuator (1) out of the backrest clamp (2).

  • Page 155: Backrest Modulite

    ® Invacare - FDX SERVICE MANUAL 8.18 Backrest Modulite 8.18.1 Replacing the standard backrest Requirements: ● 5 mm Allen key Dismantling the backrest unit: ● Remove the backrest cushion. ● Loosen the fixation lever (2) of the backrest tube. ●...

  • Page 156: Replacing The Backrest Mounting Bracket

    ® SERVICE MANUAL Invacare - FDX 8.18.2 Replacing the backrest mounting bracket Requirements: ● 5 mm Allen key Dismantling the backrest unit: ● Remove the backrest cushion. ● Loosen the fixation levers (2) of the corresponding backrest tube (1), depending on the version.

  • Page 157: Replacing The Backrest Mounting Bracket For Sb

    ® Invacare - FDX SERVICE MANUAL 8.18.3 Replacing the backrest mounting bracket for SB 53 Requirements: ● 5 mm Allen key Dismantling the backrest unit: ● Remove the backrest cushion. ● Loosen the fixation levers (2) of the corresponding backrest tube (1), depending on the version.

  • Page 158: Adjusting The Seat Width/ Backrest Width

    ® SERVICE MANUAL Invacare - FDX 8.18.4 Adjusting the seat width/ backrest width 8.18.4.1 Adjusting the seat width You can only adjust the seat width for the adjustable seat plate or for the adjustable sling seat. The sling seat is available in two widths: for a seat width of 38-43 cm and for a seat width of 48-53 cm.
  • Page 159 ® Invacare - FDX SERVICE MANUAL ● Loosen and remove the screws of the seat frame adjustment (A) with a T40 Torx wrench. ● Loosen and remove the screws of the fixation of the legrest mounting brackets (B). ● Adjust the seat frame and the legrest fixation to the desired width according to the following...

  • Page 160: Adjusting The Seat Width (Legrest Lnx)

    ® SERVICE MANUAL Invacare - FDX 8.18.4.2 Adjusting the seat width (legrest LNX) You can only adjust the seat width for the adjustable seat plate or for the adjustable sling seat. At the legrest LNX, the seat width is adjusted with the seat frame.
  • Page 161 ® Invacare - FDX SERVICE MANUAL With the legrest LNX, the seat width is set directly via the seat frame because the LNX bracket is attached directly to the seat profile. ● To adjust the seat width, loosen and remove the screws of the seat frame adjustment (A) with a T40 Torx wrench.

  • Page 162: Adjusting The Backrest Width

    ® SERVICE MANUAL Invacare - FDX 8.18.4.3 Adjusting the backrest width The backrest width is adjusted by performing the following tasks: ● Adjust the backrest tube. ● Adjust the backrest: - Sling backrest, as described in chapter 8.15.2. - Flex3 backrest, as described in chapter 8.18.4.4.
  • Page 163 ® Invacare - FDX SERVICE MANUAL ● Remove the backrest cushion. ● Loosen the straps of the sling backrest or remove the Flex3 backrest. ● Loosen and remove both screws (5) of the actuator fixation bracket. ● Remove the cover of the actuator fixation bracket.

  • Page 164: Adjusting The Flex3 Backrest

    ® SERVICE MANUAL Invacare - FDX 8.18.4.4 Adjusting the Flex3 backrest Requirements: ● Phillips screwdriver ● 5 mm Allen key ● Remove the front lateral plates (2 and 4) from the backrest (1) by loosening and removing the five hexagon socket head screws (3).

  • Page 165: Fixation Rings

    ® Invacare - FDX SERVICE MANUAL 8.19 Fixation rings 8.19.1 Replacing a front fixation ring Requirements: ● 13 mm socket wrenches (two of them) ● Torque wrench 0 – 30 Nm (or similar) Removing a front fixation ring: ● Switch the wheelchair off.

  • Page 166: Replacing A Rear Fixation Ring

    ® SERVICE MANUAL Invacare - FDX 8.19.2 Replacing a rear fixation ring Requirements: ● 13 mm socket wrenches (two of them) ● Torque wrench 0 – 30 Nm (or similar) Removing a rear fixation ring: ● Switch the wheelchair off.

  • Page 167: Installing Accessories

    ® Invacare - FDX SERVICE MANUAL Installing accessories Replacing the restraining belt Requirements: ● 10 mm socket wrench ● 4 mm Allen key Uninstalling the restraining belt: ● Loosen the screw (3) and the corresponding nut (not shown in the illustration) with a 4 mm Allen key and a 10 mm socket wrench.

  • Page 168: Replacing The Harness Belt

    ® SERVICE MANUAL Invacare - FDX 9.2 Replacing the harness belt Requirements: ● 10 mm socket wrench ● 4 mm Allen key Uninstalling the harness belt: ● Remove the protective cap (2). ● Loosen and remove the screw (6), the associated washers (5) and the nuts (4) (in front of the/behind the gripper clamp (3)) with a 4 mm Allen key and a 10 mm socket wrench.
  • Page 169 ® Invacare - FDX SERVICE MANUAL Note Another nut is used between the washers as a spacer, so that the belt bracket can move freely. ● Replace the harness belt (1). Installing the harness belt: ● Assemble the parts in reverse order.

  • Page 170: Replacing Seat Belts (Modulite Seat)

    ® SERVICE MANUAL Invacare - FDX 9.3 Replacing seat belts (Modulite seat) 9.3.1 Installation on the backrest mounting bracket (simple backrest) Requirements: ● 13 mm Socket spanner ● 5 mm Allen key ● The seat belts are attached via the drill hole (1) at the top right.

  • Page 171: Installation On The Backrest Mounting Bracket (Adjustable Seat)

    ® Invacare - FDX SERVICE MANUAL 9.3.2 Installation on the backrest mounting bracket (adjustable seat) Requirements: ● 5 mm Allen key ● Loosen the screw (1) with a 5 mm Allen key. ● Remove the screw (1), the corresponding washer (2) and the seat belt and belt winder (3) from the backrest mounting bracket (4).

  • Page 172: Installation On The Seat Frame Profile (Adjustable Seat)

    ® SERVICE MANUAL Invacare - FDX 9.3.3 Installation on the seat frame profile (adjustable seat) Requirements: ● 5 mm Allen key ● Loosen the screw (1) with a 5 mm Allen key. ● Remove the screw (1), the washer (2), the seat belt, the sliding bushing (3) and the sliding block (4) from the seat frame profile (5).

  • Page 173: Replacing The Harness Belt (Adjustable Seat)

    ® Invacare - FDX SERVICE MANUAL 9.3.4 Replacing the harness belt (adjustable seat) Requirements: ● 13 mm socket wrench ● 5 mm Allen key Uninstalling the harness belt: ● Remove the protective cap (2). ● Loosen and remove the screw (6), the associated washers (5) and the nuts (4) (in front of the/behind the gripper clamp (3)) with a 5 mm Allen key and a 13 mm socket wrench.
  • Page 174 ® SERVICE MANUAL Invacare - FDX Note A belt winder is mounted, so that the belt bracket can move freely. ● Replace the harness belt (1). Installing the harness belt: ● Assemble the parts in reverse order.

  • Page 175: Replacing The Harness Belt (Simple Seat)

    ® Invacare - FDX SERVICE MANUAL 9.3.5 Replacing the harness belt (simple seat) Requirements: ● 13 mm socket wrench ● 5 mm Allen key Uninstalling the harness belt: ● Remove the protective cap (2). ● Loosen and remove the screw (6), the associated washers (5) and the nuts (4) (in front of the/behind the gripper clamp (3)) with a 5 mm Allen key and a 13 mm socket wrench.
  • Page 176 ® SERVICE MANUAL Invacare - FDX Note Another nut is used between the washers as a spacer, so that the belt bracket can move freely. ● Replace the harness belt (1). Installing the harness belt: ● Assemble the parts in reverse order.

  • Page 177: Dahl Docking Station

    ® Invacare - FDX SERVICE MANUAL 9.4 DAHL Docking Station CAUTION: Danger of crushing! The mobility device is very heavy. Injury hazard to hands and feet! · Use proper lifting techniques. Injury hazard caused by uncontrolled movement of the mobility device! ·...
  • Page 178 ® SERVICE MANUAL Invacare - FDX Note Depending on the vehicle, several spacers (2) may be required in addition to the safety plate (3). Please refer to the documentation provided by DAHL (see also www.dahlengineering.dk) for information on whether and how many spacers are required.
  • Page 179 ® Invacare - FDX SERVICE MANUAL Fitting the DAHL Docking Station (unprepared wheelchair): ● Remove the legrests. ● Remove the front cover, as described in chapter 8.1.1. ● Remove the batteries, as described in chapter 8.4.1 ● Jack up the mobility aid using several wooden blocks. Use proper lifting techniques.

  • Page 180: Fitting The Stick Holder

    ® SERVICE MANUAL Invacare - FDX 9.5 Fitting the stick holder Requirements: ● 5 mm Allen key ● Phillips screwdriver size 2 ● Insert the Phillips screw (2) through the borehole of the loop (3). ● Attach the Phillips screw and the loop to the borehole (1) of the handlebar and tighten the Phillips screw with a Phillips screwdriver.

  • Page 181: Further Accessories

    ® Invacare - FDX SERVICE MANUAL 9.6 Further accessories Note The installation instructions for additional accessories are available at your Invacare® specialist supplier or directly from Invacare®.

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