Test results

Testing procedure - TM-5-1940-277-34_121

ENGINE WIRING HARNESS REPLACEMENT INSTRUCTIONS

TM-5-1940-277-34 Boat Bridge Erection Twin Jet Aluminum Hull Model USCSBMK1 (1940-01-105-5728) Manual
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TM 5-1940-277-34 ALTERNATOR REPAIR INSTRUCTIONS (Continued) LOCATION ITEM ACTION REMARKS p. Press STOP button. q. Turn main power OFF. r. Return all switches and controls to base setting. s. Disconnect all cables from alternator and test stand. f. Test results Evaluate. If alternator output was 24V on DC voltmeter, 23.0 - 25.5 amps on load ammeter and 18 - 20 on field ammeter the alter- nator is service- able. If field ammeter reading is low check for open circuits or high resistance in field circuit. If field ammeter reading is high check for grounds or short circuits in field circuit. If voltage output all right but load ammeter reading low check stator windings and rectifier. 2-91 (2-92 Blank)

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