Central Pneumatic 96087 Service manual

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Central Pneumatic 96087 Service manual | Manualzz
Invacare® Bora / Spectra XTR
SERVICE MANUAL
These instructions contain information about:
testing work
repair work
Edition:02.06.09
Mobitec Mobilitätshilfen GmbH
Herzog Odilostrasse 101
A-5310 Mondsee
Austria
Invacare® n.v.
Autobaan 22
B-8210 Loppem (Brugge)
Belgium
Mobitec Rehab AG
Benkenstraße 260
CH-4108 Witterswil
Switzerland
Invacare Aquatec
Alemannenstraße 10
88316 Isny
Deutschland
Invacare® A/S
Sdr. Ringvej 39
DK-2605 Brøndby
Danmark
Invacare® SA
c/ Areny, s/n
Poligon Industrial de Celrà
17460 Celrà (Girona)
ESPAÑA
Invacare® Poirier SAS
Route de St Roch
F-37230 Fondettes
France
Invacare® Ltd
South Road
Bridgend Industrial Estate
Mid Glamorgan - CF31-3PY
United Kingdom
Invacare Mecc San s.r.l.
Via Dei Pini, 62
I - 36016 Thiene (VI)
ITALIA
Invacare Ireland Ltd.
Unit 5 Seatown Business Campus
Seatown Rd, Swords
County Dublin
Ireland
Invacare® AS
Grensesvingen 9
Postboks 6230
N-0603 Oslo
Norge
Invacare® B.V.
Celsiusstraat 46
NL-6716 BZ Ede
The Netherlands
Invacare® PORTUGAL Lda
Rua Senhora de Campanhã 105
P-4369-001 Porto
PORTUGAL
+43 - 6232 - 55 35 0
Fax:
+43 - 6232 - 55 35 4
@:
[email protected]
@:
[email protected]
WWW:
www.mobitec-austria.com
+32 - (0)50 - 83 10 10
Fax:
+32 - (0) 50 - 83 10 11
@:
[email protected]
WWW:
www.invacare.be
+41 - (0)61 - 48 77 08 0
Fax:
+41 - (0)61 - 48 77 08 1
@:
[email protected]
@:
[email protected]
WWW:
www.mobitec-rehab.ch
0 75 62 / 7 00 - 251
Fax
08 00 / 6 73 81 72
@:
[email protected]
WWW:
www.invacare-aquatec.de
(Kundeservice):
+45 - (0)36 - 90 00 00
Fax (Kundeservice):
+45 - (0)36 - 90 00 01
@:
[email protected]
WWW:
www.invacare.dk
:
+34 - (0)972 - 49 32 00
Fax:
+34 - (0) 972 - 49 32 20
@:
[email protected]
WWW:
www.invacare.es
:
+33 - (0)247 - 62 64 66
Fax:
+33 - (0)247 - 42 12 24
@:
[email protected]
WWW:
www.invacare.fr
(Customer Service): +44 - (0)1656 - 664 321
Fax (Customer Service): +44 - (0)1656 - 667 532
@:
[email protected]
@:
[email protected]
WWW:
www.invacare.co.uk
+39 - 0445 - 38 00 59
Fax:
+39 - 0445 - 38 00 34
@:
[email protected]
WWW:
www.invacare.it
+353 - 18 10 70 84
Fax:
+353 - 18 10 70 85
@:
[email protected]
(Kundeservice):
Fax (Kundeservice):
@:
WWW:
:
Fax:
@:
WWW:
:
Fax:
@:
WWW:
+47 - (0) 22 57 95 10
+47 - (0)22 57 95 01
[email protected]
www.invacare.no
+31 - (0)318 - 69 57 57
+31 - (0) 318 - 69 57 58
[email protected]
www.invacare.nl
+351-225105946
+351-225105739
[email protected]
www.invacare.pt
Återförsäljare:
Invacare® AB
Fagerstagatan 9
S-163 91 Spånga
Sverige
(Kundtjänst):
Fax (Kundtjänst):
@:
@:
WWW:
Tillverkare:
Invacare Deutschland GmbH
Kleiststraße 49
D-32457 Porta Westfalica
Deutschland
MÖLNDAL
Fax:
@:
+46 - (0) 8 761 70 90
+46 - (0) 8 761 81 08
[email protected]
[email protected]
www.invacare.se
+46 - (0) 31 – 86 36 00
+46 - (0) 31 – 86 36 06
[email protected]
LANDSKRONA
Fax:
@:
+46 - (0) 418 – 285 40
+46 - (0) 418 – 180 89
[email protected]
OSKARSHAMN
Fax:
@:
+46 - (0) 491 – 101 40
+46 - (0) 491 – 101 80
[email protected]
Contents
Chapter
1
Introduction
1.1
1.2
1.3
2
5
6
7
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
8
14
16
Drive fault diagnosis ...............................................................................................................16
REM24 remote: Error codes and diagnostic codes .............................................................18
VR2 remote: Error codes and diagnostic codes ..................................................................18
Shark II remote Error codes and diagnostic codes .............................................................20
Repair work
7.1
7.2
9
10
Overview...................................................................................................................................10
Electronics modules ...............................................................................................................11
4.2.1 ACS I 60A electronics module......................................................................................12
4.2.2 ACS II 70A electronics module.....................................................................................12
4.2.3 VR2 electronics module................................................................................................12
4.2.4 Shark electronics module .............................................................................................13
4.2.4.1
Shark with 4-pole DCI..............................................................................................13
4.2.4.2
Shark with DCI 12-pole............................................................................................13
4.2.5 ACT actuator module....................................................................................................13
4.2.5.1
ACT 2 actuator module............................................................................................13
4.2.5.2
ACT 4 actuator module............................................................................................13
4.2.6 Lighting PCB.................................................................................................................13
Maintenance plan (1x annually)
Operational faults
6.1
6.2
6.3
6.4
8
Before any inspection or repair work......................................................................................8
General safety information and information about fitting / removal....................................8
Tightening torques
Layout of components and componentry
4.1
4.2
6
General information ..................................................................................................................6
Notes on transport ....................................................................................................................6
Important symbols in this manual ...........................................................................................6
Safety and fitting instructions
2.1
2.2
3
4
Page
21
General warning information about fitting work ..................................................................21
Replacing drive components .................................................................................................21
7.2.1 Replacing the complete drive unit ................................................................................22
7.2.2 Replacing the motor......................................................................................................23
7.2.3 Replacing the jaw clutch ...............................................................................................23
7.2.4 Replace carbon brushes...............................................................................................24
Replacing the electronics .......................................................................................................26
Updating software ...................................................................................................................28
Replacing batteries .................................................................................................................29
7.5.1 Removing the battery cases .........................................................................................29
7.5.2 Removing the batteries.................................................................................................30
7.5.3 Correct handling of damaged batteries ........................................................................33
Checking and replacing the main fuse..................................................................................33
Checking the cable..................................................................................................................36
Differences when replacing the REM24 remote ...................................................................38
Replacing the steering head bearings on the steering wheels ..........................................39
Repairing punctures................................................................................................................42
7.10.1 Repairing punctures (wheel size 3.00-8").....................................................................42
7.10.2 Repairing punctures (wheel size 280/250-4) ................................................................43
Replacing a drive wheel..........................................................................................................45
Checking an adjusting motor .................................................................................................47
Replacing the seat tilting ........................................................................................................47
Adjusting the seat depth to the user's seating position
50
8.1
8.2
8.3
9
Standard seat ...........................................................................................................................50
Fixed seat .................................................................................................................................52
Flex-II seat ................................................................................................................................52
Replacing the holding strap
9.1
9.2
54
Standard seat & Flex II ............................................................................................................54
Fixed seat unit .........................................................................................................................55
1
Introduction
1.1
General information
•
Service and maintenance work must be carried out taking this service manual into account.
•
It is imperative that you observe safety information.
•
Information about operation or about general maintenance and care work on the mobility
device should be taken from the operating manual.
•
You can find information about ordering spare parts in the spare parts catalogue.
•
Only use original Invacare® spare parts. The guarantee will become invalid if other spare parts
are used!
•
We reserve the right to make any alterations on the grounds of technical improvements.
•
The mobility device may only be maintained and overhauled by qualified personnel.
•
The minimum requirement for service technicians is suitable training, such as in the cycle or
orthopaedic mechanics fields, or sufficiently long-term job experience.
- Experience in the use of electrical measuring equipment (multimeters) is also a requirement.
- Special Invacare training is recommended.
•
Alterations to the mobility device 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.
•
1.2
1.3
Notes on transport
•
If the mobility device has to be shipped back to the manufacturer for major repairs, you should
always use the original packaging for transport.
•
You must include a precise fault description.
Important symbols in this manual
WARNING!
This symbol warns you of danger!
• Always follow the instructions to avoid injury to the user or damage to the product!
EXPLOSION HAZARD!
This symbol warns you of an explosion hazard, which can be caused by excessive tyre
pressure in a pneumatic tyre!
• Always follow the instructions to avoid injury to the user or damage to the product!
BURN HAZARD!
This symbol warns against chemical burns, for example due to the discharge of battery
acids!
• Always follow the instructions to avoid injury to the user or damage to the product!
NOTE:
This symbol identifies general information which is intended to simplify working with your product
and which refers to special functions.
Requirements:
• This symbol identifies a list of various tools, components and items which you will need in
order to carry out certain work. Please do not attempt to carry out the work if you do not have
the listed tools available.
2
Safety and fitting instructions
These safety instructions are intended as prevention of accidents at work and it is imperative that
they are observed.
2.1
Before any inspection or repair work
•
•
2.2
Read and observe this repair manual and the associated operating manual!
Observe the minimum requirements for carrying out the work (see chapter entitled " General
information”).
General safety information and information about fitting / removal
Danger of crushing!
• Please note the high weight of some components! This applies especially to removal of drive
units and batteries!
Fire and burn hazard due to electrical short-circuit!
• The mobility device must be switched off before removal of voltage-carrying components! The
batteries must be removed to do this!
• When carrying out measurements on voltage-carrying components, avoid short-circuiting the
contacts! Fire and burn hazard!
Injury hazard and danger of damage to vehicle due to improper or incomplete
maintenance work!
• Use only undamaged tools in good condition.
• Some moving parts are mounted in sockets with PTFE coating (Teflon™). These sockets
must on no account be greased!
• Never use "normal" nuts instead of self-locking nuts!
• Always use correctly-dimensioned washers and spacers!
• Cable ties which have been cut during removal must be replaced during refitting!
• After completing your work / before renewed start-up of the mobility device, check all
connections for tight fitting. Check all parts for correct interlocking.
• Only operate the vehicle with the approved tyre pressures (see technical data)!
• Check electrical components for correct functioning - incorrect polarity can result in damage
to the electronic system!
• Always carry out a trial run when your work is finished!
Note
Mark all current settings for the mobility device (seat, armrests, backrest etc.), and the
associated cable connecting plugs, before dismantling. 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.
CAUTION: 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 devices with a standard drive program ex-works. Invacare®
can only give a warranty for safe vehicle driving behaviour - especially the tipping stability for this standard drive program!
3
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.
Thread
Tightening torque
in Nm ±10%
M4
3 Nm
M5
6 Nm
M6
10 Nm
M8
25 Nm
M10
49 Nm
M12
80 Nm
M14
M16
120 Nm 180 Nm
Caution:!
Any other nuts or plastic connections not listed here must be tightened FINGER-TIGHT!
4
Layout of components and componentry
4.1
Overview
Underneath the seat:
1) Seat disengager
2) Electronics module
The electronics modules used are
described in Chapter 4.2.
Power seat tilting
3) Adjusting motor
4.2
Electronics modules
A variety of electronics modules can be fitted to the mobility device.
Before you connect any mobility device components such as adjusting motors/actuators or motors
to the electronics modules, you should first ensure that you know exactly which electronics module
has been fitted. Please refer to the following table for an overview.
Electronics module
Designation
Joystick boxes
ACS I 60A
REM24 remote
ACS I 60A with
ACT actuator
module
ACS II 70A
The actuator module
is optional.
REM24 remote
The actuator module
is optional.
ACS II 70A with
ACT actuator
module
VR2
VR2 remote
Shark
Shark II remote
Shark with lighting
PCB
Notes
The lighting PCB is
optional.
Electronics module
4.2.1
Designation
The actuator module
is optional.
Lighting PCB
The lighting PCB is
optional.
ACS I 60A electronics module
ACS II 70A electronics module
Connections
1) Bus cable (to remote or ACT)
2) Bus cable (to remote or ACT)
3) Motor M1
4) Battery 24V
5) Motor M2
4.2.3
Notes
ACT actuator
module
Connections
1) Motor M2
2) Battery 24V
3) Bus cable (to remote or ACT)
4) Bus cable (to remote or ACT)
5) Motor M1
4.2.2
Joystick boxes
VR2 electronics module
Connections
1) Joystick box
2) Lock (INHIBIT 2)
3) Actuator 1
4) Actuator 2
5) On-board battery charger
6) Motor M1
7) Battery 24V
8) Motor M2
4.2.4
Shark electronics module
4.2.4.1
Shark with 4-pole DCI
BUS CABLE
Connections
1) Joystick box
2) DCI for actuators (4-pole)
3) Right-hand motor M1
4) Battery 24V
5) Left-hand motor M2
4.2.4.2
Shark with DCI 12-pole
Connections
1) Cable to remote
2) DCI for actuators/lighting (12-pole)
3) Right-hand motor M1
4) Battery 24V
5) Left-hand motor M2
4.2.5
ACT actuator module
A range of adjusting motors, also known as actuators, can be fitted to the mobility device. These
actuators are either connected directly to the electronics module or to a separate actuator module.
The actuator module is connected with the electronics module via a bus cable.
4.2.5.1
ACT 2 actuator module
Connections
1) ACI*
2) Bus cable (to remote or ACT)
3) Bus cable (to remote or ACT)
4) Adjusting motor/actuator - Channel 2
5) Adjusting motor/actuator - Channel 1
* The ACI connection is used for actuator limitation or speed reduction.
4.2.5.2
ACT 4 actuator module
Connections
1) ACI*
2) Bus cable (to remote or electronics
module)
3) Bus cable (to remote or electronics
module)
4) Actuator - Channel 4
5) Actuator - Channel 3
6) Actuator - Channel 2
7) Actuator - Channel 1
* The ACI connection is used for actuator limitation or speed reduction.
4.2.6
Lighting PCB
The lighting PCB connections are printed on the circuit board itself.
5
Maintenance plan (1x annually)
Component
Check
Remedy
Armrests
• Damage to armrests
• Armrest fixings
• Damage to side
panels
• Replace covering
if damaged
• Tighten screws
• Replace side
panels if damaged
• Side panel fixings
• Seat lock defective
• Tighten screws
• Replace seat lock
• Tight seating of SL
fuses
• Replace SL fuses
if necessary
•
•
•
•
•
•
• Replace parts if
damaged
• Tighten screws
• Replace cable
motor if necessary
• Tighten screws
• Replace
components if
necessary
Side panels
Seat lock
Seat angle
adjustment
Power backrest
(if fitted)
Frames
(chassis) /
battery
mounting
Wheel
suspension and
wheels
Drive units,
coupling
mechanism
Legrests
Power legrests
(if fitted)
Lighting (if
fitted)
Batteries
Damage to backrest
Seams
Fixing
Check cable
Check function
Check fixings,
welded seams and
battery mounting
• Check drive wheels
for tight fit and side
play
• Check steering
wheels for tight fit,
float and side play
• Pneumatic tyres (if
fitted)
• Check functions in
drive and push
modes
• Check coupling
mechanism
• Check welded
seams, interlocking,
screws, footplates
• Check cable
• Check contacts
• check functions
• Check cable
• Check function
• Check batteries for
damage
• Check battery
voltage
• Check contacts and
terminals
• Adjust, replace
wheel hubs
Notes
See chapter 7.11.
See chapter 7.9.
• Replace wheels,
wheel fork or
wheel bearings
• Repair or replace See chapter 7.10.
if damaged
• Replace motor if
necessary.
• Tighten
screws/nuts,
adjust or replace if
necessary
• Tighten, replace if
necessary
• Replace cable if
necessary
• Replace lamp or
cable if necessary
• Replace batteries
if necessary
• Charge batteries
• Clean contacts
and terminals
See chapter 7.5.
See operating
manual
Please refer to the
safety information
in Chapter 7.5 for
handling batteries
9
Component
Battery case
Remote /
electronics
module
Check
Remedy
• Check locking
system, it must
engage completely.
• Remote, status
display blinking
• Fixings
• Replace if
necessary
• Cables and
connecting plugs
• Drive lever function
• Power supply
Drive program
• Check drive
electronics program
version
• Evaluate
error/blink code
• Tighten fixings,
replace if
necessary
• Tighten cables
and connecting
plugs, replace if
necessary
• Replace drive
lever if necessary
• Replace remote if
necessary
• Tighten cables
and connecting
plugs, replace if
necessary
• Update software if
newer version
available.
Notes
See chapter 7.4.
9
6
Operational faults
The various electronics modules can be fitted in connection with differing remotes in the mobility
device. Rectification of operational faults is dependent on the electronics module fitted.
The electronics modules used are described in Chapter 4.2.
NOTE:
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 device, please proceed as follows:
• First assess the possible cause of the problem using the following table.
• Check the remote status display. Evaluate the error code.
• Carry out the necessary checks and repairs as recommended in the following table.
6.1
Drive fault diagnosis
PROBLEM
Mobility
device will
not start
OTHER
SYMPTOMS
The remote
status display
illuminates
normally and
does not show
an error code.
Remote status
display does
not illuminate
Remote status
display blinking
POSSIBLE
CAUSE
Drive motors
disengaged
SOLUTION
Documentation
Engage drive
motors
See operating manual
batteries
defective
Replace batteries
See chapter 7.5.
Completely
discharge
battery
Power supply
to remote
interrupted
Pre-charge
batteries
See operating manual
Check master
fuse
See chapter 7.3.
Check cables
between the
modules for
loose
connections and
damage
See chapter 7.7.
Replace remote
See chapter 7.8.
Assess error
code
See chapter 6.2.
Remote
defective
Various causes
PROBLEM
Mobility
device
judders in
drive mode
Batteries
not being
charged
Mobility
device
runs too
slowly
Electrical
adjustment
motor does
not react
OTHER
SYMPTOMS
None
POSSIBLE
CAUSE
Batteries
defective
(unstable
voltage)
Drive motor(s)
defective
SOLUTION
Documentation
Replace batteries
See chapter 7.5.
Replace motor(s)
See chapter 7.2.
Replace carbon
brushes
See chapter 7.2.4.
None
Batteries
defective
Replace batteries
See chapter 7.5.
LEDs blinking
on charging
unit
None
Charging unit
defective
Replace charging
unit
See charging unit
operating manual
Remote
defective
Replace remote
See chapter 7.8.
Batteries
defective
Lighting /
actuator
module
defective
Replace batteries
See chapter 7.5.
Replace lighting
/ actuator
module
See chapter 7.3.
Safeguard cable
connection,
replace cable if
necessary
Check adjusting
motor
See chapter 7.7.
Remote shows
a blinking "E",
status diode on
lighting/actuato
r module does
not go out even
if remote is
switched off or
disconnected.
None
Cable
disconnected
or damaged
Electrical
adjusting motor
defective
Remote
defective
Replace remote
See chapter 7.12.
See chapter 7.8.
6.2
REM24 remote: Error codes and diagnostic codes
The drive electronics can automatically rectify some faults. In this case the status display will stop
blinking. Switch the remote on and off again several times. Wait around 5 seconds each time
before switching the remote on again. If this does not rectify the fault, determine the cause using
the blink codes from the following table.
Blink Code
1 x blink
POSSIBLE CAUSE
Module defective
2 x blink
Accessory error (e.g.
short-circuit in adjusting
motor)
Lifter too high or too low
(seat not at driving
height)
3 x blink
4 x blink
5 x blink
6 x blink
7 x blink
8 x blink
9 or 10 x blink
11 x blink
12 x blink
6.3
Error at right-hand motor
Connection
loose/defective or motor
defective
Error at left-hand motor
Connection
loose/defective or motor
defective
Fault/brake fault on righthand motor. Connection
loose/defective or motor
defective
Fault/brake fault on lefthand motor. Connection
loose/defective or motor
defective
Completely discharge
battery
Battery voltage too high
SOLUTION
Replace defective
module
Check accessory
connections, check
accessory
Documentation
See chapter 7.3.
If the lifter is raised, lower
it slowly until the status
display stops blinking. If
the lifter is too low, raise
it slowly until the status
display stops blinking.
Only drive when the seat
is at driving height.
Check connection plug,
check motor
See operating
manual
See chapters 7.7
and 7.2
Check connection plug,
check motor
See chapters 7.7
and 7.2
Check connection plug
See chapters 7.7
and 7.2
Check connection plug
See chapters 7.7
and 7.2
Pre-charge battery
See operating
manual
See charging unit
operating manual
See chapter 7.12.
Switch lighting to low
battery voltage
Check battery charger
Faulty data transmission Remove electronic
See chapter 7.3.
between modules
modules except for the
power module and the
remote. Replace the
modules one after
another in order to
ensure which was the
one causing the fault.
Drive motors overloaded / Switch remote on and off overheated
/ wait if necessary
Compatibility problems
Remove incorrect module See chapter 7.3.
between modules
VR2 remote: Error codes and diagnostic codes
Evaluate the cause using the following blink codes. The following figure shows which LEDs are
located on the remote.
•
The figure shows which LEDs are located on the
remote.
1) Battery display
2) Profile indicator
3) Adjusting motors
Error code
1 LED battery display
2 LED battery display
3 LED battery display
4 LED battery display
5 LED battery display
6 LED battery display
7 LED battery display
8 LED battery display
9 LED battery display
10 LED battery display
7 LED Battery display
plus
5 LED
profile indicator
POSSIBLE
CAUSE
Batteries
discharged
Error at left-hand
motor
Connection
loose/defective
or motor
defective
Short-circuit in
left-hand motor
Error at righthand motor
Connection
loose/defective
or motor
defective
Short-circuit in
right-hand motor
The mobility
device has been
blocked by an
external signal,
for example
because the
charger is
connected.
Fault on drive
lever
Fault in the
electronics
The parking
brake is not
working correctly.
Power surges in
the control box,
e.g. due to bad
connection with
batteries.
Compatibility
problems
between
modules
SOLUTION
Documentation
Charge battery
Check cable to batteries
See chapter 7.7.
Check connection plug, check See chapters 7.7
motor
and 7.2
Check connection plug, check
motor
Check connection plug, check
motor
See chapters 7.7
and 7.2
See chapters 7.7
and 7.2
Check connection plug, check See chapters 7.7
motor
and 7.2
Remove battery charger
Put the drive lever in a central
position before switching the
remote on.
Check cable
See chapter 7.7.
Check parking brake
Check cable.
See chapter 7.7.
Check cable to batteries
See chapter 7.7.
Check cable to remote
Replace remote
See chapter 7.7.
Error code
8 LED Battery display
plus
2 LED
actuators
6.4
POSSIBLE
CAUSE
Actuator error;
SOLUTION
Documentation
if more than one actuator is
fitted, locate the defective
actuator.
Check cable to actuator
See chapter 7.7.
Shark II remote Error codes and diagnostic codes
The drive electronics can automatically rectify some faults. In this case the status display will stop
blinking. Switch the remote on and off again several times. Wait around 5 seconds each time
before switching the remote on again. If this does not rectify the fault, determine the cause using
the following link codes:
Blink
Code
1
2
3
4
5
6
7
8
9
10
11
MEANING
SOLUTION
Set drive lever to neutral central
position (just release drive lever) and
switch on again
Battery error
Check battery and mains cable
Charge batteries.
If you switch the mobility device off for a
few minutes, the batteries can often
charge themselves up enough to
enable a short journey. You should,
however, only use this solution in
emergency situations because it results
in excessive battery discharging.
Replace batteries
Fault on left-hand Check motor cable and connecting
motor (M2)
plug.
Check motor.
Fault on right-hand Check motor cable and connecting
motor (M1)
plug.
Check motor.
Fault at left-hand
Check cable and plug.
(M2) motor brake
Fault right-hand
Check cable and plug.
(M1) motor brake
Error in Shark
Check bus cable in remote and
remote
connecting plug.
Replace remote.
Error in Shark
Check all the cables and plugs in the
power module
Shark system.
Replace electronics module
Communication
Check all cables and connecting plugs
error in Shark
in the Shark system.
system
Replace remote.
Unknown error
Check all cables and connecting plugs.
Incompatible
The wrong remote has been connected.
remote
Ensure that electronic module code and
the remote code match.
Documentation
Operating error
See chapter 7.7.
See operating manual
See chapter 7.5.
See chapters 7.5 and
7.2
See chapters 7.5 and
7.2
See chapter 7.5.
See chapter 7.5.
See chapter 7.5.
See chapters 7.5 and
7.3
See chapters 7.5 and
7.3
See chapter 7.5.
See chapter 7.3.
7
Repair work
7.1
General warning information about fitting work
CAUTION: Danger of damage to vehicle! Collisions can be caused if the adjusting
washers are removed during fitting work to the drive wheels!
• Adjusting washers are often fitted between the drive shaft and the wheel hub to even out
tolerances. If these adjusting washers are removed and not replaced again, collisions can be
caused! Always replace the adjusting washers exactly as they were before you started
dismantling!
7.2
Replacing drive components
CAUTION! Tipping and crushing hazard!
• Remove the seat and place the mobility device upside down so that the wheels are facing
upwards! This guarantees mobility device stability during repair work!
• You should seek help from a second person!
• Please see the following work steps for further important information.
CAUTION: Fire and burns hazard if battery terminal is bypassed!
• When replacing batteries, the battery terminals may not come into contact with mechanical
mobility device components and be short-circuited!
• Always replace battery terminal caps after replacing the batteries!
Requirements:
• small flat screwdriver
• Torx TX40 spanner
• Allen key 5 mm
• oblique pliers
• Cable binder
NOTE:
When disassembling, take care of small parts such as screws and washers. Put all small parts
down so that they can be reassembled in the right sequence.
•
Remove legrests.
•
Release seat (1) and tilt forwards.
•
Disconnect the remote bus cable from the
electronics module or ACT.
•
Lift the seat out of the front anchorage and
remove it. When doing so, get the help of a
second person because the seat is heavy.
7.2.1
•
Remove both battery cases as described in
Chapter 7.5.1.
•
Disconnect the motor plug from the motor to
be replaced from the electronics module.
•
The motor cable is secured inside the
frames with cable ties. Remove the cable
ties with the oblique pliers.
•
Place the vehicle upside down so that the
wheels are facing upwards. When doing so,
get the help of a second person because the
vehicle is heavy.
•
Remove the torx screw (1) with a TX40
spanner.
•
Remove the screw and hubcap.
•
Pull the complete wheel off the wheel hub.
Replacing the complete drive unit
•
Loosen the six drive unit screws with the 6
mm Allen key.
3 screws are located on the outside of the
drive unit as shown in the figure.
The other 3 screws are located on the inside
of the drive unit.
•
Lift the complete drive unit up.
•
The drive unit is reassembled in reverse
order to disassembly.
7.2.2
7.2.3
Replacing the motor
•
Loosen the motor screw (1) with the 5 mm
Allen key.
•
Remove the motor from the transmission.
•
The motor is reassembled in reverse order
to disassembly.
•
The motor must be carefully inserted into the
transmission to avoid damage. Observe the
position of the groove (1) in the
transmission.
•
The cable must be routed so that it does not
rub or get trapped.
•
Insert the motor plug into the electronics
module.
•
Secure the motor cable to the frame with
cable ties.
Replacing the jaw clutch
•
Loosen the motor screw (1) with the 5 mm
Allen key.
•
Remove the motor from the transmission.
7.2.4
•
Remove the clutch (2) from the motor (1)
using the screwdriver
•
Place a new clutch on the motor. Observe
the position of the groove (3) on the motor.
•
The motor is reassembled in reverse order
to disassembly.
•
Insert the motor carefully into the
transmission to avoid damage. Observe the
position of the groove (1) in the
transmission.
•
The cable must be routed so that it does not
rub or get trapped.
•
Insert the motor plug into the electronics
module.
•
Secure the motor cable with cable ties.
Replace carbon brushes
NOTE:
The carbon brushes are located under plastic caps outside each motor. This makes them easily
accessible so that they can be replaced without removing the motor.
Always replace the carbon brushes on both motors.
•
Carefully remove the plastic cap (1) on the
motor with the screwdriver.
•
Remove the plastic cap (1) and the carbon
brushes (3).
•
Insert new carbon brushes (3) through the
openings (2) on the motors. In doing so, the
spring must face upwards.
•
Carefully screw in the plastic cap (1) on the
motor with the screwdriver.
7.3
Replacing the electronics
The various electronics modules can be fitted to the mobility device with a range different remotes .
The possible electronics modules are described in Chapter 4.2.
Replacement is described below using the Shark electronics module as an example. The course of
action is the same for other electronics modules. The only difference is the terminal layout.
CAUTION: any changes to the drive program can affect the driving characteristics and the
tipping stability of the mobility device!
• Changes to the drive program may only be carried out by trained Invacare® specialist
dealers!
• Invacare® can only give a warranty for safe mobility device driving behaviour - especially the
tipping stability - for unaltered standard drive programs!
NOTE:
All electronics modules are delivered 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.
Requirements:
• Phillips screwdriver
• To adapt the drive program:
programming software or hand programming device and system installation manual, available
from Invacare®.
•
Remove legrests.
•
Release seat (1) and tilt forwards.
•
Disconnect the remote bus cable from the
electronics module or ACT.
•
Lift the seat out of the front anchorage and
remove it. When doing so, get the help of a
second person because the seat is heavy.
•
Remove all plugs (1) from the electronics
module.
•
Mark the positions of individual plugs for
later reassembly.
•
Loosen the screws (1) on both sides of the
electronics module with the Phillips
screwdriver and remove them.
•
Remove the electronics module.
•
Reassembly of the electronics module takes
place in reverse order.
•
Update the drive program if a new software
version is available as described in Chapter
7.4.
•
Adapt the drive program using the
programming software if necessary.
•
To complete, check all vehicle functions.
7.4
Updating software
The drive programs for mobility devices are continually being further developed and improved by
Invacare. 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 should be updated. The procedure for updating
the drive program is described in the wizard software operating manual.
NOTE:
If you have carried out customer-specific modifications to the drive program, you will have to
make these changes again after installing the new drive program.
CAUTION: any changes to the drive program can affect the driving characteristics and the
tipping stability of the mobility device!
• Changes to the drive program may only be carried out by trained Invacare® specialist
dealers!
• Invacare® can only give a warranty for safe mobility device driving behaviour - especially the
tipping stability - for unaltered standard drive programs!
Requirements:
• Dynamic® Wizard software
• Operating manual for Wizard software
• 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.
7.5
Replacing batteries
CAUTION:
Injury hazard if battery is not correctly handled during assembly and maintenance work!
• The installation of new batteries may only be carried out by authorised specialists!
• Observe the warning information on the batteries!
• Bear in mind that the batteries are very heavy!
• Only use battery versions stated in the specifications!
Fire and burns hazard if battery terminal is bypassed!
• Do NOT bridge battery terminals with tools!
CAUTION:
discharging acid can cause skin burns if the battery is damaged:
• immediately change contaminated or soaked clothing!
If contact with skin is made:
• wash off immediately with plenty of water!
If contact with eyes is made:
• rinse eyes out under running water for several minutes immediately; call a doctor!
7.5.1
Removing the battery cases
CAUTION! Danger of crushing!
• The batteries are extremely heavy. Please ensure that they do not fall to the ground when they
are removed from the chassis.
NOTE:
A spare fuse is located behind the Invacare logo on the rear battery.
• Pull the rear battery case backwards using the
belt. The locking device opens automatically
when doing so.
• Pull the battery cases out using the side
handles.
• Pull the front battery case backwards using
the belt and pull it out using the handles.
7.5.2
Removing the batteries
CAUTION: Fire and burns hazard if battery terminal is bypassed!
• When replacing batteries, the battery terminals may not come into contact with mechanical
mobility device components and be short-circuited!
• Always replace battery terminal caps after replacing the batteries!
CAUTION! Danger of crushing!
• The batteries are extremely heavy. Please ensure that they do not fall to the ground when they
are removed from the chassis.
Requirements:
• Phillips screwdriver
• Bend the tabs (1) on the cover lightly to the
outside and loosen the battery case covers.
• Open the battery case (remove cover).
• Pull the battery case socket / plug out of the
guide.
• The rear battery is only fitted with a battery
case socket at the front.
• The front battery is fitted with a battery case
socket at the front (flange central) and with a
battery case plug at the rear (flange flush).
• Note the fixing position of the battery and the
battery case sockets/plugs. The new battery
must be refitted in exactly the same position
as the old one.
• The batteries can be pulled upwards out of
the battery cases by their handles.
• Remove the terminal cover from the battery
terminals (1).
• Loosen the battery terminal clamps (1) with the
Phillips screwdriver.
• First undo the screw on the negative terminal
(black cable) with the Phillips screwdriver.
• After this, undo the bolt on the positive terminal
(red cable).
•
Reassembly of the batteries takes place in
reverse order
•
Ensure that the battery cage sockets/plugs
have been correctly refitted. A polarity
diagram is located in each battery case
cover.
•
Front battery
•
The battery case socket is located at the front
(flange central).
•
Socket side A is on the left in the direction of
travel.
•
Socket side B is on the right in the direction
of travel.
•
The battery case plug is located at the rear
(flange flush).
•
Plug side A is on the left in the direction of
travel.
•
Plug side B is on the right in the direction of
travel.
•
Rear battery
•
The battery case socket is located at the front
(flange central).
•
Socket side A is on the left in the direction of
travel.
•
Socket side B is on the right in the direction
of travel.
• The battery needs to be inserted tightly into
the battery case. Use the foam sections
supplied to ensure this.
• To complete, check all vehicle functions.
7.5.3
Correct handling of damaged batteries
CAUTION:
discharging acid can cause skin burns if the battery is damaged:
• immediately change contaminated or soaked clothing!
If contact with skin is made:
• wash off immediately with plenty of water!
If contact with eyes is made:
• rinse eyes out under running water for several minutes immediately; call a doctor!
Requirements:
• protective goggles
• acid-proof gloves
• acid-proof transport container
• If handling damaged batteries, always wear suitable protective clothing.
• Always deposit damaged batteries in suitable acid-proof containers immediately after removal.
• Only transport damaged batteries in suitable acid-proof containers.
• Always wash any objects which were contacted by acid in plenty of fresh water.
Always dispose of used or damaged batteries correctly
Used and damaged batteries will be taken back by your medical equipment supplier or Invacare®.
7.6
Checking and replacing the main fuse
CAUTION! Fire hazard!
• Always use an original strip fuse with the approved amperage.
• If the main fuse has blown, first rectify the cause before fitting a new one.
CAUTION: fitting the incorrect strip fuse causes a fire hazard!
• Only fix the strip fuses in the sequence shown in the image on the right!
• Tighten the nuts with 3.3 to 3.5 Nm!
1. Strip fuse
2. Spade terminal
3. DIN 6923 nut
Requirements:
• Phillips screwdriver
• Strip fuse
NOTE:
A spare fuse is located behind the Invacare logo on the rear battery.
NOTE:
If the fuseholder is damaged, you can replace this complete with the battery cables.
• Remove both battery cases as described in
Chapter 7.5.1.
• Remove the covers on both battery cases as
described in Chapter 7.5.2.
• The fuseholder (1) is located on top of the
batteries.
• Open the fuseholder cover.
• If the strip fuse has blown, you must first
ascertain and rectify the cause of the fault.
• The main fuse may only be replaced once
the fault has been rectified.
• Undo the strip fuse nuts (2) with the Phillips
screwdriver.
• Replace the strip fuse.
• Reassembly takes place in the reverse order.
• To complete, check all vehicle functions.
7.7
Checking the cable
The following images show checking the cable using the Shark controller as an example. The plug
positions are different for both the DX2 and VR2 controllers. The procedure for checking is
otherwise identical.
The position of the plugs is described in Chapter 4.2.
•
Remove legrests.
•
Release seat (1) and tilt forwards.
•
Check all cables for visible damage and
crushing. Replace damaged cables.
•
Pull each plug (1) carefully. The plug should
not come out of the socket.
•
If the plug is loose, press the plug into the
socket with slight pressure. The plug must
engage.
•
Check whether the plug is now firmly located
in the socket, otherwise repeat the previous
step.
• Remove both battery cases as described in
Chapter 7.5.1.
• Remove the covers on both battery cases as
described in Chapter 7.5.2.
• Check all battery cables for visible damage
and crushing. Replace damaged cables.
• Reassembly takes place in the reverse order.
• To complete, check all vehicle functions.
7.8
Differences when replacing the REM24 remote
Requirements:
• To adapt the drive program: programming software or hand programming device and REM24
electronics system installation manual, available from Invacare®.
NOTE:
All REM24 remotes are delivered 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 changes to the drive program can affect the driving characteristics and the
tipping stability of the mobility device!
• Changes to the drive program may only be carried out by trained Invacare® specialist
dealers!
• Invacare® can only give a warranty for safe mobility device driving behaviour - especially the
tipping stability - for unaltered standard drive program!
7.9
Replacing the steering head bearings on the steering wheels
CAUTION: Injury hazard if the vehicle starts moving unintentionally during repair work!
• Switch the power supply off (ON/OFF key)!
• Engage the drive!
• Before raising the vehicle, secure the wheels by blocking them with wedges!
CAUTION! Incorrect reassembly can damage the bearings and cause the steering wheels
to fall out!
• The single-row angular ball bearing rings are not identical on both sides! There is only one
correct way to insert them! For this reason, follow the assembly instructions precisely!
Tools/parts required:
• open-ended spanner, 19 mm
• Torque wrench
• large screwdriver, flat
• wooden block (approx.12 x 12x 30 cm for propping up vehicle)
NOTE:
When disassembling, take care of small parts such as screws and washers. Put all small parts
down so that they can be reassembled in the right sequence.
•
Place the wooden block under the vehicle on
the side on which the ball bearing is to be
replaced.
•
The wheel on the side where the bearing is
to be replaced must have enough ground
clearance to enable it to be pulled out of the
bearing.
•
Secure the vehicle against rolling away.
•
Carefully remove the plastic cap (1) with the
large screwdriver.
•
Loosen the 19 mm nut (1) with the socket
spanner and remove it. Hold the wheel so
that it does not rotate when the nut is being
removed.
•
Pull the steering head shaft upwards out of
the steering head tube.
•
Take the washers out of the tube.
•
Take the ball bearing out of the tube.
•
The adjacent figure shows an overview of
the individual parts.
•
Plastic cap
•
19 mm nut
•
Ball bearing
•
Reassembly takes place in reverse order to
disassembly
•
Ensure that you insert the ball bearings
exactly as described below.
•
Also ensure that the washers are correctly
replaced.
IMPORTANT ASSEMBLY INFORMATION!
• The bearings must always be assembled so that the narrow borders of the ball bearings are
facing each other (inside)!
• The steering head bolts and nuts must always be pressing against the wide (outside) border of
the ball bearings! Otherwise, the bearings will be pressed apart and damaged by the bolts!
The illustrations show the wide border of the ball bearing on the
outside of the ball race (A) and the narrow ball bearing edge on
the inside (B).
After assembly, the steering wheels should rotate freely but the
bearings should have no play.
•
First tighten the nuts to 20 Nm +/- 2 Nm.
•
Then loosen them slightly.
•
Then retighten to 15 Nm +/- 1.5 Nm.
7.10
Repairing punctures
CAUTION: Injury hazard if the vehicle starts moving unintentionally during repair work!
• Switch the power supply off (ON/OFF key)!
• Engage the drive!
• Before raising the vehicle, secure the wheels by blocking them with wedges!
7.10.1 Repairing punctures (wheel size 3.00-8")
Requirements:
• Torx TX40 spanner
• Allen key 5 mm
• Repair kit for tyre repair or a new inner tube.
• Talcum powder
Removing the wheel
• Block up the vehicle (place wooden blocks
under frame).
• Unscrew the TX40 countersunk screw (1).
• Pull the wheel off the axle.
NOTE:
Re-assembly is done in reverse order. Ensure that the tyre is replaced on the same side and in
the same travel direction as it was previously mounted.
Repairing the flat tyre
• Unscrew valve cap.
• Depressurise tyre by pressing in the pin in the
valve .
• Unscrew the 5 Allen screws (back of the
wheel, 2).
• Remove the rim halves from the tyre.
• Remove the inner tube from the tyre.
• Repair inner tube and replace, or insert new.
NOTE:
If the old inner tube is to be repaired and re-used, and has become wet during repair, you can
make replacement easier by sprinkling the inner tube with a little talcum powder.
• Insert the wheel rim halves from outside into the tyre.
• Pump a little air into the inner tube.
• Insert the Allen screw once again, and screw the wheel rims together tightly.
• Ensure that the tyre outer is seated correctly.
• Pump the tyre up to the prescribed pressure.
• Check that the tyre is seated correctly once again.
• Screw the valve cap back on.
• Refit the wheel.
7.10.2 Repairing punctures (wheel size 280/250-4)
Requirements:
• Allen key 6m
• jaw spanner 13 mm
• 2 x small ring spanners or flat screwdrivers (for pulling off tyres)
• Repair kit for tyre repair or a new inner tube.
• Talcum powder
Removing the wheel
• Block up the vehicle (place wooden blocks under
frame).
• Undo the bolt (1) and remove it using the Allen key
on one side and the jaw spanner on the other (as a
counter).
• Pull the wheel out of the fork.
NOTE:
Re-assembly is done in reverse order. Ensure that the tyre is replaced on the same side and in
the same travel direction as it was previously mounted.
Repairing the flat tyre
• Unscrew valve cap.
• Depressurise tyre by pressing in the pin in the
valve .
• Unscrew the 5 Allen screws (back of the
wheel, 2).
• Remove the rim halves from the tyre.
• Remove the inner tube from the tyre.
• Repair inner tube and replace, or insert new.
NOTE:
If the old inner tube is to be repaired and re-used, and has become wet during repair, you can
make replacement easier by sprinkling the inner tube with a little talcum powder.
• Put the tyre back on the rim.
• Ensure that the tyre outer is seated correctly.
• Pump the tyre up to the prescribed pressure.
• Check that the tyre is seated correctly once again.
• Screw the valve cap back on.
• Refit the wheel.
7.11
Replacing a drive wheel
CAUTION! Danger of mobility device tipping or rolling away!
• Prevent the mobility device tipping by propping it up on a wooden block which is long and wide
enough under the battery case! If the wooden block is too short or too high, the mobility device
can still tip!
• Switch the mobility device off at the remote!
Tools/parts required:
• Torx TX40 spanner
• wooden block (approx.12 x 12x 30 cm) for propping up vehicle
NOTE:
Take careful note of small parts and the sequence in which components are fitted. Arrange these
carefully so that they are always refitted in the correct sequence.
•
Remove legrests.
•
Release seat (1) and tilt forwards.
•
Disconnect the remote bus cable from the
electronics module or ACT.
•
Lift the seat out of the front anchorage and
remove it. When doing so, get the help of a
second person because the seat is heavy.
•
Remove both battery cases as described in
Chapter 7.5.1.
•
Place the vehicle upside down so that the
wheels are facing upwards. When doing so,
get the help of a second person because the
vehicle is heavy.
•
Under the 4 bolts which secure the wheel (1)
using the Torx TX40 spanner.
•
Remove the wheel from the hub.
•
Reassembly takes place in the reverse
order.
7.12
Checking an adjusting motor
Tools/parts required:
• Multimeter
7.13
•
Remove legrests.
•
Release seat (1) and tilt forwards.
•
Remove the adjusting motor plug from the
electronics module or ACT (see Chapter 4.2.
•
Check the electrical resistance at the
adjusting motor plug (1).
The plug may have a different shape to that
shown in the picture.
•
If the resistance is close to infinity, the motor
is probably burnt out.
•
If the resistance is below 1 Ω, the motor has
a short-circuit.
•
The motor must be replaced in both cases.
Replacing the seat tilting
Requirements:
• flat screwdriver, blade width approx. 6 mm
• oblique pliers
• small hammer
• cable binder
•
Remove legrests.
•
Release seat (1) and tilt forwards.
•
Disconnect the remote bus cable from the
electronics module or ACT.
•
Lift the seat out of the front anchorage and
remove it. When doing so, get the help of a
second person because the seat is heavy.
•
Remove both battery cases as described in
Chapter 7.5.1.
•
Pull the adjusting motor plug out of the
electronics module.
•
The adjusting motor cable is secured inside
the frames with cable ties. Remove the cable
ties with the oblique pliers.
• Remove the SL fuse (2) on the bottom fixing
bolt (1) with the screwdriver.
• Pull the fixing bolt (1) out.
• Remove the SL fuse (2) on the top fixing bolt
(1) with the screwdriver.
• Pull the fixing bolt (1) out.
• Pull the adjustment spindle with adjusting
motor out.
• Insert a new adjustment spindle with adjusting
motor.
• Reinsert the fixing bolts and SL fuses. Fix the
SL fuses securely to the fixing bolt with the
hammer.
• Reinsert the adjusting motor plug into the
electronics module.
• Secure the adjusting motor cable to the frame
with cable ties. The cable must be routed so
that it does not rub or get trapped.
• To complete, check all seat tilting functions.
8
Adjusting the seat depth to the user's seating position
In order to adapt the mobility device optimally to the requirements of the user, we recommend that
you ask your authorised Invacare® the dealer toadjust the seat depth individually.
Adapting the seat to the user's seating position depends on which seat has been fitted, and should
be carried out in the following sequence.
1.
2.
3.
4.
Adjust the seat depth to the seat frame.
Adjust the seat area.
Check to ensure that the steering wheels can rotate freely
Repeat steps 1 to 3 if necessary
A seat frame with a range of threaded holes is located under the seat. Depending on which seat
which has been fitted, it can be adjusted to various locations on the seat frame which defines the
seat depth.
In addition, you can move the seating area and fix it in different positions.
CAUTION! Injury hazard
• The steering wheels must rotate freely and may not contact any fixed mobility device
components.
Always check the seat depth settings for both forward and reverse movement.
What needs to be observed when adjusting the seat depth?
If the seat depth is too short, the force required when the user stands up is too high. If the seat
depth is set too long, the user may "slump down" while getting up.
Requirements:
• Allen key 5 mm
8.1
Standard seat
The pictures show the standard seat from above
and below.
• Rear bolts (1)
• Front bolts (2)
• Seat plate (3)
• Seat frame (4)
The seat plate can be fixed in three different
positions on the seat frame.
• Front fixing (V)
• Centre fixing (M)
• Rear fixing (H)
The picture shows where the drillholes for fixing
the seat frame (3) are located on the base frame.
• Rear drillholes (1)
• Front bolts (2)
The seat frame can only be fixed in one position
on the base frame.
The picture shows the seat frame with the
drillholes for the standard seat.
• Rear drillholes (1)
• Front drillholes (2)
8.2
Fixed seat
The picture shows the fixed seat from below.
The fixed seat is fixed directly to the base frame.
• Rear drillholes (1)
• Front drillholes (2)
8.3
Flex-II seat
The pictures show the standard seat from above
without seat support.
The Flex-II seat is fixed directly to the base
frame.
• Rear drillholes (1)
• Front drillholes (2)
To adjust the seat depth, proceed as follows:
• Loosen screws (3)
• Push the front seat section forwards or
backwards
• Retighten the screws (3)
9
Replacing the holding strap
9.1
Standard seat & Flex II
Requirements:
• open-ended spanner, 13 mm
• 5 mm Allen key
Note
A nut is fixed between the two washers (2) and (4) as a spacer so that the belt mounting can
rotate freely.
• Remove the plastic cap (5).
• Loosen the bolt (3) and the associated nut (in
the figure this is covered by the plastic cap)
with a 5 mm Allen key and a 13 mm socket
spanner.
• Remove the nut.
• Remove the bolt including safety belt and flat
washers (2) and (4).
• Remove the flat washers (4).
• Replace the safety belt (1).
• Refit the parts in the reverse order.
9.2
Fixed seat unit
Requirements:
• open-ended spanner, 13 mm
• 13 mm jaw spanner
• Loosen the bolt (1) with a 13 mm socket
spanner. Hold the nut using a 13 mm jaw
spanner to prevent rotation (not visible in
figure).
• Remove the bolt together with the flat washer
(3), the safety belt (4) and the spacer (2).
• Replace the safety belt (1).
• Refit the parts in the reverse order.

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