Invacare Mirage User manual

Invacare® MirageTM
Service manual

1
Introduction
• This manual provides basic details to enable the Invacare® MIRAGETM Wheelchair to be
maintained. It is not intended to be a comprehensive maintenance guide/policy, but is intended for
use by competent personnel to enable the chair to be adequately maintained.
• The wheelchair is manufactured by:
INVACARE Ltd
South Road
Bridgend Industrial Estate
Bridgend
Mid-Glamorgan
CF31 3PY
Sales Telephone: [phone]
Sales Fax: [phone]
Technical Services Fax: [phone]
Email: [email protected]
Web: http://www.invacare.com
• For TECHNICAL ADVICE, repairs, servicing, contact Technical Services.
For SPARE PARTS orders contact Sales.
• Quote the following details at all times:
o Part Number (see Spare Parts Catalogue)
o Description
o Quantity required
o Serial Number
o Chair Type

2
Policy
INVACARE Ltd Policy is as follows:
• Repairs to any component other than those detailed in this manual are not covered. Repairs
to any tube metal work is not generally permitted without express permission of INVACARE
Ltd. All fasteners i.e. bolts, Nyloc nuts, and any fastener showing damage must be renewed.
• Under no circumstances attempt to repair a crash damaged chair. Contact Technical Services for
further Information.
• Alterations to the wheelchair 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.
• We reserve the right to make any alterations on the grounds of technical improvements.
• Information about operation or about general maintenance and care work should be taken from
the wheelchair Operating Manual.
Failure to comply with the above absolves INVACARE Ltd of liability.
Note: Certain components will require removal to carry out maintenance. With the exception
of fasteners, those components should be refitted.
Notes on transport
• If the wheelchair has to be shipped back to the manufacturer for major repairs, you should always
use the original packaging for transport.
• You should also include as accurate a fault description as possible.
Information Symbols
Note: This symbol identifies general information which indicates special points or
simplifications in dismantling / reassembly.
CAUTION: It is imperative that you observe any safety instructions identified with this
symbol.
This symbol identifies service work or tools required.

3
Contents
Section Page
1 Layout of Modules, Components and Controls 4
2 Safety and Assembly Instructions 5
3 Tools Required 6
4 Armrests 7
5 Legrests 9
6 Upholstery, Seat and Back 11
7 Castor Wheel and Fork 12
8 Rear Wheel 14
9 Frame and Chassis 16
10 Motor Assembly 18
11 Gearbox Assembly 20
12 Control System 22
13 Batteries and charger 25
14 Mechanical Brakes 27
15 Fault Diagnostics 28
16 Servicing Requirements 33

4
1 Layout of Modules components and controls
1
2
3
54
7
6
8
9
10
13
11
12
1 Main Frame
2 Motor Gearbox
3 Front Castor Wheel
4 Rear Drive Wheel
5 Legrest
6 Seat
7 Backrest
8 Armrest
9 Footplate
10 Shark Remote
11 Shark Power Module
12 Battery Boxes
13 Back Brace
14 Anti Tipper Wheels
15 Mechanical Brakes
16 Batteries (Removed)
17 Legrests (Removed)
18 Armrests (Removed)
19 Backrest (removed)
20 Folded Chassis
14
15
17
16
18
19
20

5
2 Safety and assembly instructions
These safety instructions are intended to prevent accidents at work and it is imperative that they are
observed.
2.1 Before any inspection or repair work
Read and observe this repair manual and the associated operating manual.
Caution:
• Please note the heavy weight of some components. This applies especially to the removal of
drive units and batteries.
• The wheelchair must be switched off before removal of voltage-carrying components.
• To do this, disconnect the batteries or remove them.
• When making measurements on voltage-carrying components, avoid short-circuiting the
contacts.
• Danger of fire and combustion!
2.2 During dismantling/reassembly
Mark all current settings for the wheelchair (seat, armrests, backrest etc.), and the cable connecting
plugs associated, before any removals. This makes reassembly easier.
Caution:
• Prop up the wheelchair with appropriate supports before starting the disassembly or assembly.
• Never use standard nuts instead of self-locking nuts. .
Note:
• All plugs are fitted with mechanical latches which prevent release of the connecting plugs during
operation.
• To release the connecting plugs the latches must be pressed in.
• When reassembling ensure that the latches are correctly engaged.
2.3 Before operation / after completion of work:
Caution:
• Check all fixings for tight fit.
• Only operate wheelchair with correct tyre pressure.
• Check electrical components for correct functioning, incorrect polarity of cables can result in
damage to the electronics.
• As a last check, always carry out a trial run.

6
3 Tools Required
The following list gives the basic tools required to perform the maintenance procedures as
illustrated in this manual.
• 1 –Open Ended Spanner (7mm)
• 2 - Open End Spanner (8mm)
• 2 - Open End Spanner (10mm)
• 1 - Open End Spanner (11mm)
• 2 - Open End Spanner (13mm)
• 2 –Open Ended Spanner (17mm)
• 1 - Combination Spanner (19mm)
• 1 - Socket / Wrench (Shallow) (19mm)
• 1 – Cross Point Screwdriver (No 2)
• 1 – Cross Point Screwdriver (No 1)
• 1 - Flat Bladed Screwdriver (No 1)
• 1 - Nylon Mallet
• 1 - Torque Wrench
• 1 – Hex Wrench - (3mm)
• 1 – Hex Wrench - (4mm)
• 1 – Hex Wrench - (5mm)
• 1 - Knife
• 1 - Pressure Gauge
• 1 - Pump
• 1 - Drift
• 1 - Vice
• 1 - Valve Remover
• 1 - Multimeter
• 1 - Soldering Iron
• 1 - Pin Hammer
• 1 - Punch
• 1 - Pair Pliers
• 1 - Battery Discharge Tester
• 1 - HHP – Programmer
• 1 – Shark Programming Adapter
• 1 – Safety Goggles

7
4 Armrests
Armrest Top – Parts
1 Armpad
2 Armrest top assembly
3 Armpad screws
4 Hand wheel
1
2
3
4
5
6
7
8
9
10
11
Armrest Lower – Parts
5 Skirt Guard
6 Armrest Lower Tube
7 Screws
8 Skirt Guard Clamps
9 Hand wheel Fixing
10 Hand wheel
11 Armrest Socket

8
4.1 Tools Required:
1. No 2 Cross Point Screwdriver
2. Flat Headed Screwdriver
4.2 Inspection:
1. Check that the skirt guard (5) is fixed and not physically damaged. If the panel is loose retighten
the fixing screws (7), install a new panel if necessary.
2. Check for armpad (1) wear or damage. Replace if necessary.
3. Check for corrosion or paint damage to the bracketry and replace affected parts where
necessary.
4.3 Disassembly / Assembly
1. Release the hand wheels (11) by rotating anti-clockwise.
2. Remove the top and lower armrest assemblies.
Armrest Top Assembly
1. Remove the hand wheel (4).
2. Release the screws (3) with a No2 Cross Point Screwdriver to remove the armpad.
Armrest Lower Assembly
1. Remove screws (7) with a Cross Point Screwdriver and take away skirt guard (5) and clamps
(8).
2. Remove hand wheel (11).
3. Push fixing nut (9) into tube, to release plastic ring and remove both from armrest lower tube.
4. Repeat step 3, for armrest socket fixing nut.
To re-assemble reverse the above steps taking care not to over tighten the fixing screws.

9
5 Legrests
5.1 Tools Required:
Legrest Hanger – Parts
1 Hanger tube
2 Hanger support Assy
3 Hanger pivot
4 Screw
5 Screw
6 Screw
7 Hanger Lock
8 Hanger Lock screw and nut
13
4
5
6
8 7
2
Standard Footplate – Parts
9 Lower footplate tube
10 Footplate
11 Screw
12 Spacers
9
10
11
12
Adjustable Footplate – Parts
13 Adjustment Fixings
11
10
9
13