FUNCTIONAL TEST OF ALTERNATOR

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MAINTENANCE OF ALTERNATOR

TM-55-1905-222-14 Landing Craft Mechanized (LCM-8) (ROHR and Gunderson Models) (1905-01-284-2647 AND 1905-01-284-2648) Manual

ALTERNATOR BRUSH AND FIELD ASSEMBLY TEST

TM 55-1905-222-14

3-5 FUNCTIONAL TEST OF ALTERNATOR (Continued).

a. Test points 1, 2, 3, and 4 using

multimeter positive lead; all

test points should read battery

voltage.

b. Test point 5 should read zero.

If any voltage is noted, go to

step c.

c. Remove one lead from

excitation resistor and repeat

step b, above. A voltage

reading other

than zero

indicates a shorted positive

rectifier diode. Repair as

necessary (refer to para. 6-5).

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