ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
5.10.6 Generator Rotor Assembly.
Shut down generator set, paragraph 2.11.2. Allow generator to cool to ambient temperature.
Open BATTERY ACCESS door (Figure 1-2), and disconnect negative battery cable.
Remove rear housing panel. Refer to paragraph 4.7.5.
Remove end bell top cover and louvered covers. Refer to paragraph 5.10.2.
Remove nuts (1, Figure 5-11) and lockwashers (15) securing main rotor leads to terminal bolts
(2). Tag and remove leads.
It will be necessary to bar (turn) engine in order to position a specific area of the
rotating rectifier at one end of the end bell access holes. Use center bolt on
harmonic balancer. Refer to TM 9-2815-260-24.
Set multimeter for ohms, and connect between disconnected main rotor leads. Multimeter
reading should be as shown in Table 5-2.
Reading other than in Table 5-2 indicates shorted or open windings, and main rotor must be
Connect multimeter between each main rotor lead and rotor shaft in turn.
Multimeter reading of less than infinity indicates defective ground insulation, and main rotor
must be replaced.
(10) Install securing main rotor leads and rotating rectifier diode leads, lockwashers (15), and bolts
(1) on terminal bolt (2).
(11) Install end bell top cover and louvered covers. Refer to paragraph 5.10.2.
(12) Install rear housing panel. Refer to paragraph 4.7.5.
(13) Connect negative battery cable to battery, and close BATTERY ACCESS door.
Shut down generator set, paragraph 2.11.2.
Remove generator assembly, paragraph 5.10.1.
Remove bolts (24, Figure 5-9), washers (25) and drive discs (26) from drive hub (31).
Remove bolts (27), lockwashers (28), and fan (29) from drive hub (31).
Attach a suitable rotor lifting device to drive hub (31) and overhead hoist as shown in Figure 5-