TM 10-3930-641-20
ALTERNATOR TESTING/ADJUSTMENT (CONT)
(Sheet 3 of 3)
LOCATION/ITEM
ACTION
REMARKS
a. Tum main disconnect to ON.
2.
b. Connect multimeter positive lead to termi-
b.
Voltage should be 26-30 volts (28 V ideal).
nal marked + where orange wires connect.
Check voltage output to ground.
c.
Conned multimekr positive lead to termi-
Voltage should be 12 volts.
c.
nal R where light blue wire connects.
1. Access plate
Remove.
2. Adjustment knob
turn adjustment knob with screwdriver.
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