SELECTED MAINTENANCE ACTIVITIES AND POSTMAINTENANCE TESTS
This list of activities and tests is a guide only and is not meant to be all-
inclusive. The testing selected should depend on the scope of completed
maintenance and the requirements established by the owner/operator.
An appropriate test for nearly all mechanical work would be a general
leakage inspection and any testing required by ASME codes or
Repair Electric motor
Perform the following checks: insulation
index, high potential.
Verify proper direction of rotation and proper
Operate the equipment and verify absence of
Obtain baseline vibration-analysis data.
Measure the bearing temperatures.
Measure the starting and the running current
for each phase.
Check oil levels.
Check air-filter cleanliness.
Repair circuit breaker.
Verify adjustment of circuit breaker trips.
Perform trip-shaft torque measurements if
Measure phase-to-phase and phase-to-ground
Measure microhms across each main contact.
Perform automatic-function test on the
breaker (open and closes on required
Measure breaker-response time.
Verify operation of auxiliary trip devices and
Perform manual operation checks on the
Check breaker parameters (e.g., breaker
operating voltage, current, control power,