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5.3.8
Replacing the carbon brushes, Puma 40 < November 2016 and Puma 20 (all versions)
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 or 8
carbon brushes:
• Remove the bolt/nut and the locking washers of the drive
wheel.
• Remove the drive wheel from the motor axle.
• Remove the mudguards and the anti-tip wheels.
• Loosen the three bolts from motor arm to loosen the
motor.
• Unscrew the 2 or 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, anti-tip wheel and driving
wheel on the carrier.
• Check the tyre pressures.
1
Note! Suitable work area required!
Relevant article numbers
9006360 Puma 20 Motor brush set (2x2pcs with cover)
9005107 4PHT 8 mm motor brushes service (6 and 10 km/h)
9008819 4PHT 5 mm motor brushes service (12,5 km/h)
9006008 Drive wheel mounting set, Puma 40, version <
November 2016
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)
• Open ended or ring spanner, 13 mm
• Torque wrench, socket, 13 mm
• Torx key, T30
• Water pump pliers
Icons
Parts need to be replaced. Dispose of waste parts in
accordance with local regulations.
Bolts are provided with Loctite thread locker!
Note! Be aware of the issue!
2
110648-03-001
Puma 20/40
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