Changing Brushes

F-code Section C-code

PS S1.1 1700 Drive Motor Service

Version no T-code

001

Press against the inner race when installing onto a shaft. 2.End heads having slip-fit bearings are normally retained by a snap ring. Always install new snap ring(s).

2.7.3. After Assembly

The motor should be connected, as specified in Troubleshooting, and tested to the specifications.

When testing motors the voltmeter connections must be made at the motor terminals.

3. Changing Brushes

When changing brushes the commutator must be serviced as follows:

Resurface the commutator by taking only light cuts each time, 0.005 in. [0.12 mm].

If reslotting/undercutting is necessary the final operation is to lightly sand the commutator with a fine sandpaper to remove any burrs left from the undercutting operation.