ARMY TM 9-6115-645-24
AIR FORCE TO 35C2-3-444-12
MARINE CORPS TM 09244A/09245A-24/2
4-20.2. Installation.
a.
If removed, install diode mounting plates (13, FIGURE 4-16) on insulating plate (14) with bolts (11) and
lockwashers (12).
b.
Install suppressor diode (10) on insulating plate (14) with nut (8) and lockwasher (9).
c.
Install rotating rectifier (20, FIGURE 4-17) on rotor assembly (23) with bolts (18) and lockwashers (19).
d.
Connect two main rotor leads and rotating rectifier diode leads to terminal bolts (2, FIGURE 4-16) with nuts (1).
e.
Connect three exciter rotor leads to rotating rectifier with bolts (3) and lockwashers (4).
f.
Install main bearing and generator end bell, paragraph 4-19.2.
g.
Install generator set housing rear panel, paragraph 2-18.4.
h.
Connect negative battery cable.
Close battery access door.
4-21
EXCITER STATOR
4-21.1. Testing.
a.
Shut down generator set. Allow generator to cool to ambient temperature.
b.
Open battery access door and disconnect negative battery cable.
c.
Open output box access door and disconnect exciter field leads F1 and F2 from terminals 1 and 2 of TB8.
d.
Set multimeter for ohms and connect between disconnected exciter field leads. Multimeter reading should be as
shown in TABLE 4-3.
e.
Multimeter reading other than in TABLE 4-3, indicates open or shorted windings and exciter stator must be
replaced.
f.
Connect multimeter between each exciter field lead and generator frame in turn.
g.
Multimeter reading of less than infinity indicates defective ground insulation and exciter stator must be replaced.
h.
Connect exciter field leads to terminals 1 and 2 of TB8 and close output box access door.
i.
Connect negative battery cable and dose battery access door.
4-21.2. Removal.
a.
Shut down generator set.
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, paragraph 4-19.1 (disconnecting generator leads not required).
e.
Remove set screws (21, FIGURE 4-17) and exciter stator (22) from end bell (16).
4-21.3
Installation.
a.
Position exciter stator (22, FIGURE 4-17) in end bell (16) with exciter leads routed through hole in end bell.
Secure exciter stator (22) in place with set screws (21).
b.
Install generator end bell, paragraph 4-19.2.
c.
Install generator set housing rear panel, paragraph 2-18.4.
d.
Connect negative battery cable and dose battery access door.
4-22.
EXCITER ROTOR TESTING.
a.
Shut down 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 h.
4-38 Change 2
