Shade pole

Universal motor

Permanent capacitor start

Capacitor start and run motor

10 to 15 W

50 to 70 W

120 to 180 W

250 to 500 W

11A

10A

1A

0.1A

Open in field coil

Short in commutate segment

Bad brush tension

Wrong brush position

Maintenance schedule needs to be decided, based on maintenance requirements entered in the manual.

Maintenance could be done either during the working of the machine or during shut interval down period

Maintenance done at irregular frequencies

Maintenance is performed only if the machine has a fault or defect