Gearbox Assembly - Invacare Mirage Service Manual

11 Gearbox
Parts :
1 Gearbox Top
2 Gearbox Housing
3 Screws
4 Clutch Lever Upper
5 Clutch Lever Lower
6 Gearbox Top Gasket
7 Motor / Gearbox
Gasket
8 Key
11.1 Tools Required
• 5mm Hex Wrench
• 8mm Open Ended Spanner
• Pin Hammer
• Punch
•
Pliers
• Vice
11.2 Inspection
1. Check casing for cracks or damage or leakages.
2. Check Gearbox for noises (gears and bearings).
3. Check the declutching lever (4) and mechanism engages and disengages correctly.
4. Check that the output shaft of the gearbox is not damaged or bent. Remove the rear wheel and inspect
the key (8) and keyway for wear and correct fitting.
11.3 Disassembly
Caution:
• Before proceeding with this instruction, remove the batteries from the wheelchair.
• Remove the rear wheel from the gearbox (See Section 8).
1. Unplug the motor from the Power Module. Loosen and remove the six Screws (3) which hold
the motor gearbox to the side frames of the wheelchair using a 5mm Hex Wrench.
2. Remove the motor gearbox and then locate and remove the remaining two screws (3) from
gearbox lid (1). The lower housing of the gearbox (2) will now detach from gearbox top.
3. To dismantle the declutching lever upper (4) and lower (5) parts, knock out the fixing pin using
a pin hammer and punch, separate the two halves.
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8
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6
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