ARMY TM 9-6115-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
4-23 G E N E R A T O R A S S E M B L Y .
4-23-1 Testing.
a. Shutdown generator set. Allow generator to cool to ambient temperature.
b. Open battery access door and disconnect negative battery cable.
c.
Remove generator set housing rear panel, paragraph 2-18-1.
d. Remove generator end bell cover plates, paragraph 4-19-1, step d.
e. Tag and disconnect main rotor leads (2 places) from rotating rectifier by removing nuts (1, FIGURE 4-12) and
Iockwashers (2).
NOTE
It will be necessary to bar (turn) engine in order to position a specific area of the ro-
tating rectifier at one of the end bell access holes. Turn engine using center bolt on
harmonic balancer, refer toTM 9-2815-255-24.
f.
Set multimeter for ohms and connect between disconnected main rotor leads. Multimeter readng should be as
shown in TABLE 4-3.
g.
Reading other than in TABLE 4-3, indicates shorted or open windings and main rotor must be replaced.
h. Connect multimeter between each main rotor lead and end bell in turn.
i.
Multimeter reading of less than infinity indicates defective ground insulation and main rotor must be replaced.
j.
Connect main rotor leads to rotating rectifier with nuts (1, FIGURE 4-12) and Iockwashers (2). Remove tags.
k. Install generator end bell top cover and louvered covers, paragraph 4-19-2, step f.
1.
Install generator set housing rear panel, paragraph 2-18-4,
m. Connect negative battery cable and close battery access door.
4-23-2 Removal.
a. Shutdown generator set.
b. Remove generator assembly from generator set, paragraph 4-17-1.
NOTE
Mark location of spacers (19), washers (18), and bolts (17) to ensure correct position-
ing during installation.
c.
Remove bolts (17 and 20, FIGURE 4-14), washers (18) and (21), spacers (19), and drive discs (22) from drive
hub (26).
d. Remove bolts (23), Iockwashers (24), and fan (25) from drive hub (26).
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