Replacing The Carbon Brushes - Invacare FDX Service Manual

8.13.4 Replacing the carbon brushes

Note
Always replace all carbon brushes on both motors at the same time.
WARNING: Danger of crushing!
The wheelchair is very heavy. Danger of injury to the hands and feet!
● Let a second person help you.
Requirements:
● Flat screwdriver
● 10 mm socket wrench
● Torque wrench 5 – 30 Nm (or similar)
● Two oblong wooden blocks, at least 14 x 14 x 30 cm
Uninstalling carbon brushes:
●
Switch the wheelchair off.
●
Remove the drive wheels, as described in chapter 8.12.1.
●
Disengage the motor by setting the coupling lever to "Pushing".
●
Loosen and remove the self-locking nut (4) of the retaining ring (2) with a 10 mm socket
wrench, so that the motor (3) can be rotated against the gearbox (1). This way the carbon
brushes are easier to access.
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