100 | Puma 20/40100 |
5.3.6 Replacing the carbon brushes, Puma 40 / 5-spoke wheels > October 2016
Preparation
• Switch off the wheelchair via the remote control.
• Be sure that the freewheel switch is in ‘drive’ mode. If the
freewheel switch is in ‘push’ mode this will make loosening
the bolts impossible.
• Use a lifting device to raise the drive wheels clear of the
ground.
Instructions
The following operations are required to replace the 4
carbon brushes:
• Remove the nut/washer and the locking washers of the
drive wheel.
• Remove the drive wheel from the motor axle.
• Loosen the central motor arm screw and remove the motor
arm.
• Remove the mudguards.
• Loosen the ve bolts from motor arm to loosen the motor.
• Unscrew the 4 caps to get access to the carbon brushes.
• Pull the carbon brush out of the housing and remove the
brush.
• Inspect the collector on the anchor of the motor; if the
collector is seriously worn, replace the entire drive unit.
• Place the carbon brush in the holder; this can be done in
one way only.
• Screw the new plastic screw cap onto the carbon brush
holder.
• Mount the motor, mudguard, motor arm and driving wheel
on the carrier.
• Check the tyre pressures.
Relevant article numbers
9011587 Bush Kit 4-Pole Incl Caps,
version > October 2016
9011644 Nuts&Bolts Drive Wheel 5-Spoke
If complete drive units need to be replaced see spare parts
list 'Suspension arm and motors' for article numbers:
Tools used
• Lifting device
• Screwdriver
• Hammer (plastic)
• Hexagonal torque wrench, socket, 5 mm, 6 mm, 8 mm
• Water pump pliers
Icons
Parts need to be replaced. Dispose of waste parts in
accordance with local regulations.
Bolts and/or nuts are provided with Loctite thread
locker!
Note! Be aware of the issue!
1
min.
100 cm
min.
100 cm
min.
75 cm
min.
75 cm
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