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13.3 Motor Brush Removal & Replacement
When ordering replacement motor brushes it is necessary to determine whether the motor
has cartridge brushes or non-cartridge brushes as shown in fig 13.C For non cartridge brushes
proceed as follows.
Disconnect the motor loom from the main loom, release the two self-tapping screws which
hold the motor cowl and slide the motor cowl along the motor loom, taking care not to apply any
force to the wiring.
The brushes are located vertically either side of the brake assembly. They are joined
together by a wire and by gently pulling this will release the brushes.
To replace, press gently into the slots and position wire so that it is not in contact with the
brake assembly. Refit the motor cowl taking care not to trap any wiring. Re-connect the motor
loom and test.
On some later model powerchairs cartridge brushes are fitted which require no disman-
tling. These are accessed from the outside of the motor and are removed by unscrewing the caps
situated below the rim of the motor cowl.
RJ Part No
Cartridge brush (pair)
GS-01
Non-cartridge brush (pair)
CB-174
13.4 Motor Brake Removal
Remove the motor cowl by releasing the two self tapping screws and lifting off the motor
cowl, being careful to feed the loom through the grommet so that no force is applied to the wiring.
Disconnect the motor plug and brake wires and cut off the crimped spade connectors.
From inside the cowl pull the two brake wires through from the motor loom sheath. Using an Allen
key remove the two securing bolts on the top of the brake assembly. The brake asembly can now
be removed.
13.5 Motor Brake Removal
The brake is not serviceable so a new one must be fitted. Place on top of the motor and
secure with Allen bolts after applying small quantity of thread locking compound. Torque to
10lbs/ft (13.5Nm). Feed the two brake wires through the grommet in the cowl alongside the motor
loom and refit the cowl. Cut off the brake wires to the required length and fit new spade
connectors. Tape the brake wires to the outside of the motor loom to give complete protection.
Reconnect the motor to the main loom and test.
IMPORTANT
Investigate warranty status before proceeding.
Failure to do so may invalidate your warranty.
Motor and gearbox maintenance is limited to
complete assembly replacement except replacing
motor brakes and brushes.
Check Brake and Motor functions operate
correctly after any maintenance when completed
.
