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repair, recondition, or rebuild the motor, it is recommended that the nearest Westinghouse
apparatus repair facility be consulted.
In addition to a daily observation of the appearance and operation of the motor, it is
recommended that a general inspection procedure be established to periodically check the
following items:
1. Cleanliness, both external and internal
2. Stator and rotor (squirrel-cage) windings
3. Bearings
Cleanliness
On open ventilated motors, screens and louvers over the inlet air openings should not be
allowed to accumulate any build-up of dirt, lint, etc. that could restrict free air movement.
Screens and louvers should never be cleaned or disturbed while the motor is in operation
because any dislodged dirt or debris can be drawn directly into the motor.
If the motor is equipped with air filters, they should be replaced (disposable type) or cleaned
and reconditioned (permanent type) at a frequency that is dictated by conditions. It is better to
replace or recondition filters too often than not often enough.
Totally enclosed, air-to-air cooled (TEAAC) motors and totally enclosed, fan-cooled (TEFC)
motors require special cleaning considerations. The external fan must be cleaned thoroughly
since any dirt build-up not removed can lead to imbalance and vibration. All of the tubes of the