20 TP-7173 10/20
4.1 Check the Operation
Check the operation at regular intervals (no abnormal noise or vibration).
Check the tightness of all nuts and bolts. Pay particular attention to the electrical connections.
4.2 Check the Ventilation
Ensure that air flow is not reduced by partial blocking of the air inlet and discharge grids by mud, fiber, grease, etc.
Check for corrosion or abrasion on the air outlet grids.
4.3 Check the Windings
Have an authorized distributor/dealer perform service. Refer to the appropriate alternator service manual. See the Related
Literature.
When operating the generator set under dusty or dirty conditions, use dry compressed air to blow dust out of the alternator while
the generator set is running. Direct the stream of air through openings in the generator set end bracket.
4.4 Check the Bearings
Have an authorized service distributor/dealer perform service.
Replace the end bracket bearing every 10,000 hours of operation. Service the bearing more frequently if the annual inspection
indicates excessive rotor end play or bearing damage. The sealed end bracket bearing requires no additional lubrication.
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