TO CHECK CAPACITOR (if generator will not re-excite) 1. Remove end cover screws and end cover from genhead. NOTE: The capacitor on the GHC6510 and H650CS is located in the panel assembly, see To Remove Panel Assembly for this unit and proceed. a. Remove capacitor leads. b. Connect VOM to capacitor and watch for low ohms reading that slowly progresses to an open circuit. Open circuit from beginning indicates bad capacitor. TO CHECK STATOR (if generator will not re-excite and capacitor is OK) 1. If the capacitor checks okay, check for open circuits in stator. 2. To check for open circuits in stator, attach VOM to the following leads: A. Black- Orange B. Red- Green C. Pink capacitor lead- Pink capacitor lead Open circuit indicates bad stator. 3. If open circuits are not found and there is still a problem, check for circuits grounded in stator. Attach VOM between: A. Black- Stator laminations * B. Red- Stator laminations* C. Pink capacitor leads- Stator laminations* No reading indicates good stator. No reading will be indicated on meter as OL. 4. Attach Vom between black and pink capacitor lead; and red and pink capacitor lead. Your reading should be infinity or OL. If you read zero or above, this indicates bad stator. Most commonly caused by lacings meshed between windings as shown. * Varnish on the laminations must be scraped off to make contact with the metal surface for correct readings. TO CHECK ROTOR (if generator will not re-excite and Stator is OK) 1. If stator checks okay, then check rotor for open circuits. If the rotor has two diodes, remove one diode and attach VOM to solder junction of removed diode to solder junction of the remaining diode. Open circuit indicates bad rotor. If the rotor has one diode, remove the 1/4"-20 nut above the 1/4" female connector and remove from diode bracket. Attach VOM to female connector and solder junction on diode. Open circuit indicates bad rotor.
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