Otto bock 490e75 series User manual

490E75=0_C

Service manual

490E75=0_C2 | Ottobock

Table of contents

1 Introduction ...................................................................................................................................................... 6

1.1 Foreword .......................................................................................................................................... 6

1.2 Support ............................................................................................................................................ 6

1.3 Product overview ............................................................................................................................... 7

1.3.1 Rear-wheel drive RWD/front-wheel drive FWD ....................................................................................... 7

1.3.2 Mid-wheel drive MWD ........................................................................................................................ 8

2 Safety instructions .......................................................................................................................................... 8

2.1 Explanation of warning symbols ........................................................................................................... 8

2.2 General safety instructions .................................................................................................................. 9

2.3 Safety instructions for the use of tools and accessories ........................................................................... 9

2.4 Safety instructions for service and maintenance tasks ........................................................................... 10

3 Transport and storage ................................................................................................................................... 12

3.1 Transport ........................................................................................................................................ 12

3.2 Storage .......................................................................................................................................... 12

4 Service work .................................................................................................................................................. 13

4.1 General information .......................................................................................................................... 13

4.2 Instructions for adjustment ................................................................................................................ 13

4.3 Maintenance schedule ...................................................................................................................... 13

4.4 Required tools ................................................................................................................................. 13

4.5 Basic work ...................................................................................................................................... 14

4.5.1 Jacking up the wheelchair ................................................................................................................. 14

4.5.2 Operating the seat height and seat tilt ................................................................................................. 15

4.5.3 Activating/deactivating the main fuse .................................................................................................. 15

4.5.4 Folding the seat up/down .................................................................................................................. 16

4.6 Trim components on the mobility base ................................................................................................ 17

4.6.1 Removing/installing the battery cover .................................................................................................. 17

4.6.2 Replacing the front cover .................................................................................................................. 18

4.6.3 Replacing the rear cover ................................................................................................................... 19

4.7 Batteries and power supply ............................................................................................................... 20

4.7.1 Replacing the automatic circuit breaker .............................................................................................. 20

4.7.2 Replacing the batteries ..................................................................................................................... 21

4.7.3 Charging the batteries ...................................................................................................................... 22

4.7.4 Replacing the external charging receptacle ......................................................................................... 22

4.7.5 Replacing the external power supply receptacles ................................................................................. 23

4.7.6 Replacing the fuse for lighting and external power supply ...................................................................... 23

4.8 Control unit ..................................................................................................................................... 24

4.8.1 Replacing the controller .................................................................................................................... 24

4.8.2 Replacing the seat module with cover (standard seat) ........................................................................... 25

4.8.3 Replacing the seat module with cover (VAS seat) ................................................................................. 25

4.8.4 Replacing the tilt sensor ................................................................................................................... 27

4.8.5 Replacing the memory function .......................................................................................................... 27

4.8.6 Replacing additional control modules ................................................................................................. 31

4.8.7 Replacing the TEN° control panel ...................................................................................................... 32

4.8.8 Replacing the VR2 control panel ........................................................................................................ 34

4.8.9 Replacing the attendant control ......................................................................................................... 35

4.8.10 Replacing the manual centre tray control ............................................................................................. 35

4.8.11 Replacing the push-button module ..................................................................................................... 36

4.8.12 Replacing the display and connection module ..................................................................................... 39

4.8.13 Replacing the mo-Vis joystick control on the tray .................................................................................. 42

4.8.14 Replacing the mo-Vis joystick control on the arm support ...................................................................... 43

490E75=0_C Ottobock | 3

Table of contents

4.9 Drive unit ........................................................................................................................................ 45

4.9.1 Replacing the drive wheels ................................................................................................................ 45

4.9.2 Replacement tasks on the drive unit (rear-wheel drive RWD/front-wheel drive FWD) ................................. 45

4.9.3 Replacement tasks on the drive unit (mid-wheel drive MWD) ................................................................. 51

4.10 Caster wheels ................................................................................................................................. 57

4.10.1 Replacing the cover cap set .............................................................................................................. 57

4.10.2 Replacing the caster wheels .............................................................................................................. 57

4.10.3 Replacing the caster wheel splash guard ............................................................................................ 58

4.10.4 Replacing the caster fork .................................................................................................................. 59

4.10.5 Replacing the caster wheel bearing set ............................................................................................... 60

4.10.6 Replacement tasks on the caster wheel swing arm (rear-wheel drive RWD/front-wheel drive FWD) ............ 61

4.10.7 Replacement tasks on the caster wheel / stabilising wheel swing arm

(mid-wheel drive MWD) .................................................................................................................... 67

4.11 Changing tyres ................................................................................................................................ 71

4.12 Selecting and adjusting the suspensions ............................................................................................. 72

4.12.1 Overview of suitable suspensions....................................................................................................... 72

4.12.2 Adjusting the suspensions ................................................................................................................. 73

4.13 Seat ............................................................................................................................................... 74

4.13.1 Replacing the seat plate (standard seat) ............................................................................................. 74

4.13.2 Replacing the seat plate (VAS seat) .................................................................................................... 74

4.13.3 Adjusting the seat width (VAS seat) .................................................................................................... 75

4.13.4 Setting the pre-tilt / replacing the seat height adapter ........................................................................... 76

4.13.5 Adjusting the centre of gravity (standard seat with module for combination of seat height adjustment

and seat tilt) .................................................................................................................................... 78

4.13.6 Adjusting the centre of gravity (standard seat without module for combination of seat height adjustment

and seat tilt) .................................................................................................................................... 79

4.13.7 Adjusting the centre of gravity (VAS seat with module for combination of seat height adjustment and seat tilt) ..

4.13.8 Adjusting the centre of gravity (VAS seat without module for combination of seat height adjustment

and seat tilt) .................................................................................................................................... 82

4.13.9 Replacing the seat frame with seat brackets (standard seat) .................................................................. 83

4.13.10 Replacing the seat frame (VAS seat) ................................................................................................... 84

4.13.11 Replacing the seat height adjustment actuator ..................................................................................... 85

4.13.12 Replacing and adjusting the seat height adjustment sensor ................................................................... 87

4.13.13 Replacing the seat tilt actuator ........................................................................................................... 89

4.14 Back .............................................................................................................................................. 90

4.14.1 Replacing the bearing plates (standard seat) ....................................................................................... 90

4.14.2 Replacing the cover for the bearing plates (VAS seat) ........................................................................... 91

4.14.3 Replacing the bearing plates (VAS seat) ............................................................................................. 91

4.14.4 Adjusting/replacing the back (standard seat) ....................................................................................... 92

4.14.5 Adjusting/replacing the back (VAS seat) ............................................................................................. 93

4.14.6 Removing/installing the power back angle adjustment (standard seat) .................................................... 94

4.14.7 Replacing the actuator for the power back angle adjustment (standard seat) ........................................... 94

4.14.8 Removing/installing the manual back angle adjustment (standard seat) ................................................... 95

4.14.9 Removing/installing the power back angle adjustment (VAS seat) ........................................................... 96

4.14.10 Replacing the actuator for the power back angle adjustment (VAS seat) .................................................. 97

4.14.11 Removing/installing the manual back angle adjustment (VAS seat) ......................................................... 98

4.14.12 Replacing/adjusting the back upholstery (standard seat) ....................................................................... 99

4.14.13 Replacing/adjusting the back upholstery (VAS seat) ............................................................................. 99

4.15 Side panels ....................................................................................................................................101

4.15.1 Replacing the side panel holder (standard seat) ..................................................................................101

4.15.2 Replacing the side panel holder (VAS seat) ........................................................................................102

4.15.3 Retrofitting/replacing an elevating side panel (standard seat) ................................................................103

4.15.4 Retrofitting/replacing an elevating side panel (VAS seat) ......................................................................107

490E75=0_C4 | Ottobock

Table of contents

4.15.5 Replacing the armrest......................................................................................................................109

4.15.6 Replacing the clothing protector .......................................................................................................109

4.16 Legrests ........................................................................................................................................110

4.16.1 Replacing the legrest holder .............................................................................................................110

4.16.2 Replacing a central leg support ........................................................................................................111

4.17 Lighting .........................................................................................................................................113

4.17.1 Replacing the lighting ......................................................................................................................113

4.17.2 Replacing the fuse for the lighting .....................................................................................................114

4.18 Safety accessories ..........................................................................................................................115

4.18.1 Replacing the curb climbing assist ....................................................................................................115

4.18.2 Replacing the transport brackets (rear-wheel drive RWD/front-wheel drive FWD) .................................. 116

4.18.3 Replacing the transport brackets (mid-wheel drive MWD) ....................................................................117

4.18.4 Installing the vehicle transportation set (transport kit) ...........................................................................118

4.19 Accessories ...................................................................................................................................122

4.19.1 Replacing the lap belt (standard seat) ................................................................................................122

4.19.2 Replacing the lap belt (VAS seat) ......................................................................................................123

4.20 Installing and adjusting the tray .........................................................................................................124

4.20.1 Scope of delivery ............................................................................................................................124

4.20.2 Installation .....................................................................................................................................124

4.20.3 Adjusting the depth .........................................................................................................................126

5 Troubleshooting ........................................................................................................................................... 127

5.1 Diagnostic steps .............................................................................................................................127

5.2 Display of errors/faults (R-Net control unit) .........................................................................................127

5.2.1 Graphical displays (R-Net control unit) ..............................................................................................127

5.2.2 Error messages/error codes (R-Net control unit) .................................................................................128

5.3 Display of errors/faults (VR2 control unit) ...........................................................................................130

5.3.1 Visual displays (VR2 control unit) ......................................................................................................130

5.3.2 Error messages/error codes (VR2 control unit) ...................................................................................132

5.4 Other errors (not displayed) .............................................................................................................133

6 VR2 wheelchair control ............................................................................................................................... 134

6.1 Installation and wiring ......................................................................................................................134

6.2 Programming tools ..........................................................................................................................137

6.2.1 Handheld programming device .........................................................................................................137

6.2.2 PC programming device ..................................................................................................................137

6.3 Programmable parameters ...............................................................................................................138

6.3.1 General parameters ........................................................................................................................138

6.3.2 Speed parameters ..........................................................................................................................139

6.3.3 Log functions .................................................................................................................................141

7 R-Net wheelchair control ............................................................................................................................ 141

7.1 Installation and wiring ......................................................................................................................141

7.2 Programming tools ..........................................................................................................................146

7.2.1 On-board programming with programming dongle ..............................................................................146

7.2.2 PC programming with the programming dongle ..................................................................................146

7.2.3 Handheld programming device .........................................................................................................147

7.3 Programming philosophy .................................................................................................................147

7.4 Programmable parameters ...............................................................................................................148

490E75=0_C Ottobock | 5

7.4.1 General parameters ........................................................................................................................148

7.4.2 Speed parameters ..........................................................................................................................149

7.4.3 Joystick parameters .........................................................................................................................151

7.4.4 Profile-specific control parameters ....................................................................................................153

7.4.5 Latched drive parameters .................................................................................................................154

7.4.6 Seat parameters .............................................................................................................................155

8 Technical data .............................................................................................................................................. 155

9 Appendixes .................................................................................................................................................. 155

9.1 Approved seat brackets ...................................................................................................................155

9.2 Torque values of the screw connections .............................................................................................156

9.3 Battery circuit diagram .....................................................................................................................156

9.4 Control system architecture ..............................................................................................................157

9.5 Record of delivery ...........................................................................................................................158

9.6 Maintenance schedule .....................................................................................................................159

Table of contents

Introduction

490E75=0_C6 | Ottobock

1Introduction

1.1 Foreword

• Regular maintenance is important – it improves safety and increases the lifespan of the product.

• All Mobility products should be inspected and serviced once a year.

• However, we recommend inspecting, readjusting, and if necessary servicing the product every 6months if the

product is used frequently, by growing children or by users with changing clinical conditions.

• Only use original spare parts for all service and maintenance work. The service and maintenance tasks described

here should only be completed by trained, qualified personnel and not by the user of the device.

• This service and maintenance manual refers to the respective spare parts catalogues and the instructions for use

of the described products. Please use these documents together.

• Use the maintenance schedule (checklist) as a template for making copies. Retain completed maintenance sche-

dules and provide the user with a copy.

• The assembly tasks described here relate to the use of spare parts. The service personnel bear sole responsibi-

lity for retrofitting or converting the product.

Instructions for use (qualified personnel) Instructions for use (user)

490E75=0_C 647G2000 647G2001

1.2 Support

Your national Ottobock team will be happy to answer any technical questions. The contact addresses and telephone

numbers can be found on the back inside cover of the service manual.

Introduction

490E75=0_C Ottobock | 7

1.3 Product overview

1.3.1 Rear-wheel drive RWD/front-wheel drive FWD

Fig.1 shows a power wheelchair with rear-wheel drive. On a power wheelchair with front-wheel drive, the mobility

base is rotated accordingly by 180°.

1 Back padding 11 Mobility base (drive unit bracket)

2 Back 12 Caster wheel

3 Seat module 13 Caster wheel splash guard

4 Side panel with armrest and clothing protector 14 Drive motor with brake release

5 Actuator for power back angle adjustment 15 Suspension for caster wheel swing arm

6 Seat frame 16 Caster wheel swing arm

7 Rear lighting 17 Front lighting

8 Drive wheel splash guard 18 Legrest

9 Drive wheel 19 Seat cushion

10 Anti-tipper 20 Control panel

Safety instructions

490E75=0_C8 | Ottobock

1.3.2 Mid-wheel drive MWD

1 Back support pad 10 Drive motor with brake release

2 Back support 11 Caster wheel swing arm

3 Seat frame 12 Suspension for caster wheel swing arm

4 Rear lighting 13 Front lighting

5 Drive wheel splash guard 14 Leg support

6 Stabilising wheel swing arm 15 Seat cushion

7 Caster wheel splash guard 16 Control panel

8 Caster wheel 17 Side panel with arm support and clothing guard

9 Drive wheel

2Safety instructions

2.1 Explanation of warning symbols

WARNING

Warning regarding possible serious risks of accident or injury.

CAUTION

Warning regarding possible risks of accident or injury.

NOTICE

Warning regarding possible technical damage.

Safety instructions

490E75=0_C Ottobock | 9

2.2 General safety instructions

WARNING

Risk of suffocation

fPackaging materials must be kept out of reach of children.

WARNING

Use of the wheelchair during service work

Severe injuries if the wheelchair tips over due to loosened components

fNo person is permitted to be in or on the wheelchair during any service work.

fSupport the product so it cannot tip over during all service work.

WARNING

Overloading

Severe injuries if the wheelchair tips over due to overloading, damage to the product

fDo not exceed the maximum load capacity or the allowable gross weight (see the nameplate and section "Tech-

nical data").

fPlease note that certain options and add-on components will reduce the remaining load capacity.

fWe assume no liability if the maximum user weight is exceeded.

fRefitting and retrofitting wheelchair components changes the weight of the wheelchair. This can lead to chan-

ges to driving characteristics and increased loads on the drives, the suspensions and other components of the

wheelchair. Before refitting or retrofitting any components, check whether the selected configuration and the

total weight of the wheelchair are permissible. For further information, please contact your national Ottobock

team.

2.3 Safety instructions for the use of tools and accessories

CAUTION

Use of unsuitable tools

Pinching, crushing or damaging the product due to use of unsuitable tools

fWhen completing the tasks, only use tools that are suitable for the conditions at the place of work and for which

safety and the protection of health are assured with proper use.

fObserve the specifications in the section "Required tools".

CAUTION

Wearing of unsuitable work clothing

Chemical burns due to insufficient protection

fWear suitable work clothing (for example, gloves and protective eyewear) when working on the batteries.

CAUTION

Improper lifting

Crushing, pinching, blows due to failure to observe safety instructions

fSome parts of the power wheelchair, such as the batteries, frame, seat, and motors, are very heavy. Ensure

ergonomically correct lifting of these parts. Use sufficiently large hoisting devices or perform this work with a

helper.

fIf it is necessary to work underneath raised parts or equipment, make sure these are secured by suitable means

so that they cannot come loose, shift, or fall down.

fWhen using lifting platforms or an assembly stand, ensure that the power wheelchair is centred on the sup-

porting surface and that no parts protrude into the danger zone.

Safety instructions

490E75=0_C10 | Ottobock

2.4 Safety instructions for service and maintenance tasks

WARNING

Exposed pinch points

Pinching, crushing of limbs (e.g. fingers) due to lack of caution in danger areas

fWhile adjusting power seat functions, note that inherent pinch and shear points are located between the seat

frame and the power wheelchair frame.

fEnsure that no body parts, such as hands or feet, are in the danger zone while you make adjustments to power

seat functions.

WARNING

Exposed pinch points when seat is folded up

Pinching, crushing of limbs (e.g. fingers), tipping over due to lack of caution when folding the seat up and down

fTo safely fold the seat up or down, grasp the seat by the seat frame, by the backrest or by the legrest adapter.

Never use the legrests themselves to fold the seat up or down as these do not provide a firm handhold.

fAfter folding up the seat, shake it to verify that it is firmly locked. A seat which is not firmly locked could fall back

to its starting position and result in severe crushing injuries.

fAlways secure the wheelchair against tipping over with the active support of a helper when the seat is folded

up. Always fold down the seat before jacking the wheelchair up or down.

fMove the seat to the lowest seat height before folding it up. If this is not possible (e.g.due to a defect in the

seat height adjustment actuator), then secure the seat during all work with the active support of a helper.

WARNING

Uncontrolled movement of components following loosening of plug and screw connections

Pinching, crushing and shearing of body parts

fEnsure that body parts, such as hands and feet, are never in the danger zone.

fEnsure that no interfering objects, such as clothing or other obstacles, are in the danger area.

fPerform the work with the aid of a helper for support.

CAUTION

Failure to observe installation instructions

Pinching, crushing due to installation errors

fDo not reach between force-actuated surfaces during installation work (e.g. when tightening screw connec-

tions).

CAUTION

Short circuit

Burns, injuries; damage to electrical/electronic components due to improper battery handling

fDeactivate the main fuse before performing any work on the battery.

fOnly use insulated tools to perform maintenance work on the batteries.

fNever connect the two poles of a battery with metal conductors or tools.

fEnsure correct polarity when you connect the battery cables. Please refer to the battery circuit diagram on the

inside of the battery cover and on Page156.

CAUTION

Re-use of self-locking nuts

Tipping over, falling of the user due to unintended loosening of the screw connections

fAlways replace self-locking nuts with new self-locking nuts after disassembly.

Safety instructions

490E75=0_C Ottobock | 11

CAUTION

Unsecured screw connections

Pinching, crushing, tipping over, falling of user due to assembly errors

fAfter all adjusting/readjusting work, retighten the mounting screws/nuts firmly. Observe any torque settings

which may be specified.

fAny time you loosen a screw connection with thread lock, replace it with a new screw connection with thread

lock or secure the old screw connection with medium strength thread locker (e.g. Loctite241).

NOTICE

Tipping or falling of the product

Damage to product due to lack of attachment

fWhen you work on the product, secure it so that it cannot tip over or fall over.

fUse a clamping fixture to secure the product whenever you work on it at a workbench.

NOTICE

Incorrect cable routing

Damage to cables due to pulling or pinching

fWhen positioning the cables make sure that they cannot be pinched.

fWhen performing any adjustment and installation work near installed cables, ensure that the cables are suf-

ficiently long for all adjustment possibilities and cannot become pinched. Use cable extensions and additional

cable attachments if necessary.

NOTICE

Incorrect lifting

Damage to the product, tearing off of side panels due to user error

fDo not use the side panels to lift the wheelchair.

NOTICE

Worn or loose bushings

Damage to product due to incorrect installation

fVerify the firm fit of the pressed-in bushings during all assembly work.

fIf bushings are worn or loose, the entire component in question has to be replaced. Replacing individual bus-

hings is not permitted.

NOTICE

Incorrect cleaning

Damage to the product due to user error

fWater must not come into direct contact with the electronics, motor or batteries under any circumstances.

fNever use a water jet or high-pressure cleaning apparatus to clean the product.

fUse a cloth or sponge for cleaning.

fDo not use any aggressive cleaning agents or solvents.

fCheck the driving behaviour of the product after cleaning it.

Transport and storage

490E75=0_C12 | Ottobock

3Transport and storage

3.1 Transport

NOTICE

Improper transport

Damage to the product due to collision and falling down

fOnly use hoisting devices that have a sufficient capacity and the designated carry handles for transport.

fThe power wheelchair must be secured in accordance with the regulations for the transport device.

fDuring transport on lifting platforms or in lifts, the wheelchair control unit must be switched off. Engage the

brake.

fEnsure that the power wheelchair is centred on the lifting platform. None of the power wheelchair components,

such as the anti-tipper or other parts, are allowed to be in the danger zone.

The size of the wheelchair can be reduced for transport (see Fig.3 / 4).

For this purpose, the seat bottom must be moved into the lowest position and the backrest folded down onto the seat.

The caster wheel is swivelled under the caster wheel swing arm.

The following accessories can be optionally dismantled or removed for transport:

• Headrest

• Legrests

• Side panels

• Back padding and seat cushion

All instructions for reducing the size are included in the instructions for use (user).

Prior to transport, turn the control unit of the wheelchair off, engage the brake and deactivate the main fuse (see

Page15).

Secure the wheelchair with straps to the 4eyebolts on the mobility base during transport. The angle at which the

straps are tightened must be as flat as possible.

3.2 Storage

Switch off the wheelchair control unit and deactivate the main fuse prior to storage (see Page15). Store the pro-

duct in a dry, enclosed room with sufficient air circulation and protection from external influences.

Maintain an ambient temperature between –15 °C and +40 °C (5 °F and 104 °F) and relative humidity between 45%

and 85%.

Service work

490E75=0_C Ottobock | 13

4Service work

4.1 General information

INFORMATION

Read the service manual before starting work. Familiarise yourself with the functions of the product prior to inspec-

tion and use. To do so, you can request this service manual and other documentation from the manufacturer (see

the overview of national Ottobock branches on the inside of the back cover).

INFORMATION

Clean and disinfect the product before commencing service work.

Observe all product care and product-specific inspection instructions in the instructions for use.

INFORMATION

Screws and nuts with thread lock are used for many screw connections. If you loosen screw connections, be

sure to replace the respective nut or screw with one equipped with a new thread lock. If new screws or nuts with

a thread lock are not available, use a medium-strength liquid thread locking compound (such as Loctite241 or

EuroLockA24.20).

INFORMATION

For some adjustment or installation work, you are referred to the instructions for use (user or qualified personnel).

Due to changes in the configuration, new components may be missing in the available instructions for use (user or

qualified personnel). You can request the updated instructions for use for your new configuration from the manu-

facturer (see the overview of national Ottobock branches on the inside of the back cover).

4.2 Instructions for adjustment

WARNING

Lack of stability against tipping

User may fall or tip over due to lack of inspection

fChanging the settings can lead to instability of the system as a whole. Verify tipping resistance on level ground

and slopes after any changes to the settings.

The sections that follow describe the replacement of standard and option parts on the product 490E75=0*.

All instructions concerning the adjustment of the parts installed are included in the instructions for use (qualified

personnel) with the document number 647G2000=*.

4.3 Maintenance schedule

The maintenance schedule as a template for copying is found in the appendix (see Page156).

4.4 Required tools

• Phillips screwdriver (size3)

• Slotted screwdriver (small and medium size)

• Allen wrench (size 2–8)

• Torx wrench (sizeT10)

• Pin wrench or screwdriver with Torx Plus 20IP

• Open-ended and ring wrenches (sizes 10, 13, 17, 30)

• Reversible ratchet handle wrench and sockets (size 8–30)

• Torque wrench (measurement range 0.5–25 Nm)

• Socket wrench extension

• Hammer, approx. 300 g; soft-faced hammer

• Pin punch, Ø8mm

• Assembly stand (rectangular supporting surface corresponding to the footprint of the mobility base; load capacity

at least equal to the overall weight of the wheelchair; see technical data)

• Plastic tyre mounting levers; inner tube repair kit

Service work

490E75=0_C14 | Ottobock

• Liquid thread lock, "medium" and "strong"

• Side-cutting pliers

• Drill; twist drill Ø 5.2mm

4.5 Basic work

4.5.1 Jacking up the wheelchair

CAUTION

Improper lifting

Crushing, pinching, blows due to failure to observe safety instructions

fThe wheelchair is heavy. Ensure ergonomically correct lifting. Use sufficiently large hoisting devices or perform

this work with a helper.

fIf it is necessary to work underneath raised parts or equipment, make sure these are secured by suitable means

so that they cannot come loose, shift, or fall down.

fAlways use an assembly stand with a load capacity that at least corresponds to the overall weight of the

wheelchair.

fWhen using lifting platforms or an assembly stand, ensure that the power wheelchair is centred on the sup-

porting surface and that no parts protrude into the danger zone.

fAlways secure a jacked up wheelchair against tipping over with the active support of a helper when the seat is

folded up. Always fold down the seat before jacking the wheelchair up or down.

NOTICE

Incorrect lifting

Damage to the product, tearing off of side panels due to user error

fDo not use the side panels to lift the wheelchair.

Jacking up is required for work on the following components:

• Drive wheels, drive wheel swing arms and suspension

• Caster wheels, caster wheel swing arms and suspension / rigid elements

• Drive motors

Jacking up with an assembly stand

1) Activate (lock) the brakes on both drive motors.

2) Tip the wheelchair with the active support of a helper.

INFORMATION: A wheelchair with mid-wheel drive MWD can be tilted sideways to jack it up. Grasp the

seat frame for tipping. Do not use the side panels to lift the wheelchair. Do not pull or push on the side

panels or arm supports!

3) GD?@<I<NN@H=GTNO<I?JANPAu>D@IOGJ<?><K<>DOT<I?NDU@PI?@MOC@HJ=DGDOT=<N@JAOC@RC@@G>C<DMNJDODN

centred.

4) Carefully lower the wheelchair, centring it on the assembly stand. The mobility base has to lie evenly on the sup-

porting surface of the assembly stand.

5) Check that the wheelchair is securely positioned on the assembly stand.

Service work

490E75=0_C Ottobock | 15

4.5.2 Operating the seat height and seat tilt

All instructions for power operation of the seat height (optional) and seat tilt (optional) are included in the instructions

for use (user).

INFORMATION

If there is a defect in the seat height adjustment actuator, the seat height cannot be power operated. In this case,

please observe the following instructions:

fIf the seat is fixed in an upper position:

Actively secure the seat and the wheelchair against falling and tipping during all work. Perform the work only

with the active support and assistance of a helper, especially when the seat is folded up.

fIf the seat is fixed in the lowered position:

Check whether the seat can be pulled up manually for work on the seat height adjustment actuator. Actively

secure the manually raised seat and the wheelchair against falling and tipping. Perform the work only with the

active support and assistance of a helper, especially when the seat is folded up.

fIf the seat cannot be pulled up manually:

Carefully fold up the seat for the required work. Actively secure the seat and the wheelchair against falling and

tipping during all work. Perform all work only with the active support and assistance of a helper.

4.5.3 Activating/deactivating the main fuse

Activating the main fuse

1) Push the reset lvever, which is at an angle into the notch until it engages (see Fig. 5/6, item 1).

2) The main fuse is activated (see Fig. 5). The internal power supply is connected and activated.

Deactivating the main fuse

1) M@NNOC@KPNC=POOJIN@@DB{ÂÃxDO@H¿PIODGOC@M@N@OG@Q@MvDKNPK<O<I<IBG@{

2) The main fuse is deactivated (see Fig. 6). The internal power supply is disconnected.

Service work

490E75=0_C16 | Ottobock

4.5.4 Folding the seat up/down