Bearing (Ball) - Lubricate
The following ball bearings must be lubricated: no shield and single shield. Double shielded ball bearings may not require lubrication. Refer to the grease plate instructions that are located on the machine.
Bearing (Spherical Roller) Lubricate
Spherical roller bearings must be lubricated.
When servicing or repairing electric power generation equipment:
Periodically, generators should be inspected for cleanliness.
The following contaminants should not be allowed to accumulate on the windings:
Generator Set Vibration - Inspect
Check for vibration damage. Vibration may cause the following problems:
The following are susceptible to vibration damage:
Check the generator set's vibration level by using a broad spectrum analyzer.
Insulation - Test
Periodially, use a megohmmeter to check the insulation resistance of the generator's main stator winding. The frequency of this test is determined by the generator's environment. Previous megohmmeter readings will also determine the frequency of this test:
Test the main stator windings with a megohmmeter in the following situations:
Source: MaintainX (Community Member)