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Fig. 16
Indication lamp for carbon brush replacement
The indication lamp for carbon brush replacement is described below with reference to Fig. 16. As the carbon
brush wears, the guide piece mounted to the carbon brush moves toward the commutator. When the guide
piece contacts the piece ass'y, the indication lamp will light up in red as the switch is turned on. The indication
lamp will begin to light up approximately 10 hours before the service life of the carbon brushes ends. When
the indication lamp lights up, replace both carbon brushes with new ones as soon as possible.
A - A
Commutator
Control circuit ass'y
Carbon brush
Brush holder
Guide piece
Piece ass'y
Indication lamp (red) for
carbon brush replacement
Handle
Side cover
Housing
A
A
