Repair manual

Troubleshooting GP Repair
wc_tx000548gb.fm 68
4.15 Checking Excitation Winding
The excitation winding provides AC voltage to the Automatic Voltage
Regulator (AVR). The AVR then sends a DC voltage through the rotor
winding “exciting” the rotor into becoming an electromagnet. To check
the excitation winding, carry out the following procedures:
4.15.1 Stop the engine.
4.15.2 Remove the two screws which secure the end cover to the generator
and remove the end cover.
4.15.3 Remove the plug (a) which connects the excitation winding to with the
AVR. On GP 2500A/GP 2600 models, remove plug (b).
Continued
b
a
wc_gr006433
GP 2500A
GP 2600