TM -07464A-35 TM 5-6115-457-34
5. Remove jumper from across 1/4
ohm resistor and record voltage reading.
Nominal voltage should be 28 3 volts at
75 F ambient. If nominal voltage is not in-
(c) Jumper lead and 1/4 ohm
dicated, adjust voltage adjust rheostat
resistor not used in this test.
is accessible through rear cover (8) of
2. Connect circuit as shown in fig-
a clockwise direction.
6. If nominal voltage can not be
Alternator must be driven in direc-
place voltage regulator and repeat test.
tion of arrow (shown on rear cover
b. Alternator Output Test.
1. Equipment required in addition
to equipment listed in step a.
Make sure drive belt has a midway
(a) Carbon pile (0 to 600 ampere
deflection of 9/16 to 13/16 of an
Figure 8-4. Alternator schematic and wiring diagram (sheet 1 of 2)