Handicare PUMA 40 - Replacing carbon brushes

Puma 20/40 Service instructions | 53
Replacing the carbon brushes (Puma 20/40)
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.
Notice
• Use a lifting device to raise the wheelchair / Puma 20/40
carrier.
• Some parts need to be replaced; the replacement is
indicated by a
symbol.
• Make sure the wheelchair is switched off.
Relevant article numbers
• 9006360 Puma 20 Motor brush set (2x2pcs with cover)
• 9006361 Puma 40 Motor brush set (2x2pcs with cover)
• 9005107 4P HT Motor brush set (2x4pcs with cover)
• 9002600 Drive wheel bolt and ring
• If complete drive units need to be replaced see spare
parts list for article numbers:
Puma 20 - 35 Carrier and seat adjustments /
Suspension arm and motors Puma 20
Puma 40 - 36 Carrier and seat adjustments /
Suspension arm and motors Puma 40
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
•
Dispose of waste parts in accordance with local
regulations.
•
Bolts are provided with Loctite thread locker!
• Note! Be aware of the issue!
1
Note! Suitable work area required!
2