TM 5-3740-214-14
ELECTRICAL PARTS GROUP (Continued)
Figure 5-240. Alternator Test
(b) Unplug the leads at the rectifier-regulator. Connect the positive (+) meter lead across the ac leads and
the negative (-) lead to a grounded engine part.
If the meter reads less than 31 volts, the stator is bad.
Replace the engine.
If the meter reads more than 31 volts, remove the rectifier-regulator mounting bolts and replace the
rectifier-regulator.
(c) Connect the positive (+) meter lead to the B+ lead and the negative (-) meter lead to a grounded engine
part.
If the meter reads more than 14.7 volts, remove the rectifier-regulator mounting bolts and replace the
rectifier-regulator.
If the meter reads less than 14.7 volts, check the battery.
(6)
Test starter motor.
5-219
