TM 55-2925-236-40
mature assembly (39). Install fan (18) through
(7) Insert armature assembly (39) into
housing and stator (53), seating ball bearing
the armature assembly. Install compression
spring (21), washer (20), self-locking nut (19)
(44) in the bore of the housing.
and the setting gage. Using spline wrench
(8) Mount end bell assembly (30) on ball
(QB800593) to keep the shaft from turning, re-
bearing (36), and secure to housing and stator
tighten selflocking nut (19) with the 7/16-inch
(53) with six screws (31), six lock washers (31),
(12-point thin wall) socket wrench until the set-
and six special washers (33 ). Tighten screws to
ting gage again indicates zero, plus or minus
a torque of 35 to 40 pound-inches.
0.005 inch. Remove the setting gage.
( 9 ) Secure the housing to interface
(15) Apply sealing compound (item 14, table
(1106354-1) and mount on generator overhaul
stand (1106187).
fan housing (16) to end bell assembly (30) with
(10) Install the remaining dirt slingers (35
six screws (17).
and 43) and lock rings (17 and 38).
(11) Align bearing retainer (45) with the
(16) Fasten generator stator terminals to
holes in housing and stator (53). Apply sealing
terminal posts D and A+ with two self-locking
compound (item 15, table 2-3 ) to the threads of
nuts (10) and two washers (11).
four screws (41). Install bushings (42) and outer
(17) Fasten generator stator terminals and
race bearing retainer (40), and secure with four
capacitor terminals to terminal posts E, B+,
screws (41 ).
and C+ with three self-locking nuts (8) and
(12) Align bearing retainer (37) with the
three washers (9) (see figure 3-6 and 3-7).
four holes in end bell assembly (30). Apply seal-
(18) Install split-type brushes (4, figure 3-
ing compound (item 15, table 2-3) to the threads
1) in brush holders, and secure, along with two
of four screws (28), and install the screws with
end bell capacitor terminals, with eight screws
four lock washers (29).
(5), eight lock washers (6), and eight washers
(13) Align the terminals of end bell capaci-
(7). Tighten the screws to a torque of 35 to 40
tors (13, 20, and 27, figure 32) over the thread-
pound-inches.
ed holes in four screws (29), and secure with
(19), Slide brush access cover assembly (1)
three screws (24, figure 31), three lock wash-
over fan housing (16), and tighten screw (2) and
ers (25), and three washers (26).
square nut (3).
(14) Use setting gage (1106353-1) to meas-
(20) After the starter generator has been
ure and check the compressed length of compres-
tested satisfactorily, safety wire the drilled head
sion spring (21 ). This assembled length should
screw (2) to brush access cover assembly (1)
be 1.100 inches. Insert the gage size plug into
with lock wire (item 16, table 2-3 ) in accordance
the fan end of armature assembly (39), and in-
with Military Standard MS33540 (ASG).
stall washer (20) and self-locking nut (19). Seat
the setting gage on the washer, and tighten the
(21) After the final test procedure has es-
self-locking nut, using a 7/16-inch (12-point thin
tablished optimum position of brushes, lock the
wall) socket wrench until the gage indicator is
end bell assembly in position. Using the notch in
at zero, plus or minus 0.005 inch. Remove the
the end bell for location, drill a 0.062, plus 0.003,
setting gage, self-locking nut, washer, and gage
minus 0.000 in. diameter hole through the hous-
size plug. Install front plate (23) on drive shaft
ing, and press in roll pin (34) flush to the hous-
assembly (22) and insert the shaft through ar-
ing.
3-12
