Technical information

Practical A.E.G Upgrade 2006
Page 93 Copyright 2005,06 The AirsoftPRESS (Hong Kong). All rights reserved.
How do I optimize the overall performance of the stock motor?
The best way to gain power from your stock motor is to properly break-in the
motor brushes and the bronze bushings (all TM/ICS/CA motors use bronze
bushings rather than ball bearings).
You want to first break-in the brush/commutator interface so that the brushes
can conform better to the shape of the commutator. To do so is easy – just run
the motor on 4 cells (1.2V on each cell) for several minutes until the full brush
face is conformed to the commutator.
Breaking in bushings is necessary if the motor bushings are too tight. To do a
quick check, just spin the motor (by hand) with the brushes removed and fell the
resistance to turning (you may want to have some other motors here for
comparison purpose).
To perform bushing break-in, just put a little valve of grinding compound into the
bushing and spin the motor until you feel a reduction in resistance.
Commutator
Brush Brush
Before break-in
Brush Brush
After break-in
Commutator