TM 5-3805-258-24-2
ENGINE
Negative battery cable to generator terminal (D-)
or (B-). Positive battery cable to ammeter. From
ammeter to generator terminal (B+).
Voltmeter leads to
(D–) or (B–).
Observe correct
voltmeter.
generator terminals (B+) and
CAUTION
polarity when
connecting
If needed for pre-excitation (only after assembly),
connect a 24V indicator lamp (3 watt) between bat-
tery positive and generator D+ terminal. This proce-
dure is needed when a new rotor is installed.
TESTING
Test Procedure
Adjust generator speed to 5,000 RPM.
Set load current to 5A by adjusting the carbon pile. If
necessary, re-adjust generator speed. In one minute,
the regulated voltage reading should be 27.5V to
28.3V.
NOTE: If the generator has been disassembled and
then assembled with a new rotor, the generator must
first be externally excited through a 3 watt. 24V
lamp or 3 watt resistor. Thereafter, the generator is
self-excited.
5-12j
