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Generator On-Vehicle Tests

CAUTION:

To prevent damage to the generator, do not make jumper wire connections except as directed.
Do not allow any metal object to come in contact with the housing and the internal diode cooling fins with key on or off. A short circuit will result and burn out the diodes.

NOTE:

Battery posts and cable clamps must be clean and tight for accurate meter indications.

NOTE:

See the Battery Tester Procedure Manual for complete direction for testing the charging system.

Turn OFF all lamps and electrical components.
Place the vehicle in transmission range NEUTRAL and apply the parking brake.
Carry out the Load Test and No-Load test to the following component tests: