STARTER-GENERATOR MAINTENANCE PROCEDURES
This section contains instructions for adjustment of
generator voltage, removal, inspection, repair, and installation of
the starter-generator belt drive sheave and bushing.
also contains instructions for disassembl, cleaning, inspection?
repair, and assembly of the starter-generator.
The starter-generator is a six-pole, six-brush
unit equipped with a three-capacitor radio noise box.
induction is obtained by a fan at the commutator end driving air
across the armature and field coils.
Adjustment of Generator Voltage (fig. 5-4).
This procedure applies ONLY to generator sets serial numbers
923-001 thru 923-553.
The solid-state regulator in serial numbers
929-001 thru 929-290 delivers an output voltage that is non-adjust-
In the event the output voltage becomes excessive, the
regulator automatically removes output power.
When the condition
that caused this overvoltage is corrected, depressing a reset
button mounted on the regulator will restore output power.
(1) Test specific gravity of battery source. Batteries must
be functioning properly to adjust voltage.
Refer to TM 9-6140-200-14
for information on batteries.
(2) Start engine, and place load (para. 2-14d) across batter-
ies until generator and regulator reach operating temperature.
(3) Connect voltmeter across battery terminals.
(4) Remove rheostat and turn knob until voltmeter reads