TM 55-6115-498-40
(2) Place stator insulation (17, figure 3-3)
(5) Insert armature assembly (45) into gen-
behind each compensating winding and main
e r a t o r stator (48), seating ball bearing (43) in
pole of winding and pole shoe assembly (14).
the bore of the housing.
(3) Install and align winding and pole shoe
( 6 ) Mount end bell assembly (38) on ball
a s s e m b l y (14) in housing (22) and secure with
bearing (39), making sure that mounting holes
s i x t e e n screws (13). Tighten screws (13) to a
are aligned. If roll pin (35) is installed in the
t o r q u e of 40 pound-inches and check that the
stator housing, align notch in the end bell with
minimum gage clearance between opposite pole
roll pin (35).
shoes is 4.273 inches. Stake each screw in two
(7) Secure the stator housing to generator
places.
interface 1106207 (table 2-2) and mount on
( 4 ) In(stall) terminal board insulator (12)
generator stand 1106187 (table 2-2).
and terminal board (9) on housing (22) and
(8) Align bearing retainer (44) with the
secure with bolts (7 and 10) and washers (8 and
four holes in the stator housing. Apply sealing
11).
c a m p o u n d (item 14, table 2-3) to the threads
(5) Make certain terminal lug (19) is con-
o f four screws (33). Install bushings (34) and
nected to the B terminal post.
outer race bearing retainer (32), and secure with
(6) Make certain electrical lead (18) is con-
four screws (33).
nected to the E terminal post and brazed to the
(9) Align bearing retainer (40) with the
compensating winding.
four holes in end bell assembly (38). Apply
(7) Make certain terminal (6) is connected
s e a l i n g compound (item 14, table 2-3) to the
to the A terminal post and terminal (5) is con-
t h r e a d s of four screws (26). Install and align
nected to the D terminal post.
t h e capacitor assembly with terminals (29) ad-
( 8 ) Tighten bolts (10 and 11) in terminal
scent to the two positive contact holder threaded
board (9) to a torque of 35 pound-inches.
screws. Secure the capacitor assembly to end bell
b. End Bell Assembly.
a s s e m b l y (38) and bearing retainer (40) with
f o u r screws (26), four lock washers (27), and
(1) Using brush box aligner 1106208
four washers (28).
( t a b l e 4) and pilot holder 1106209 (table 4),
(10) Apply sealing compound (item 14,
secure electrical contact holders (1, figure 3-2)
t o end bell (7) with four screws (2), four lock
C o n n e c t two terminals (29) of capacitor subas-
w a s h e r s (3), four flat washers (4), sixteen in-
s e m b l y (31) to the two positive contact holder
sulating washers (5), and four insulating tubes
threaded screws and secure with two screws (23),
(6).
t w o lock washers (24), and two washers (25).
( 2 ) Coat the area between the insulating
( 1 1 ) Mount front plate (22) on drive shaft
washers and the electrical contact holder bosses
assembly (21), and insert the drive shaft assem-
with red Glyptal lacquer (item 13, table 2-3).
bly through the shaft of armature assembly (45)
(3) Bake the assembled parts in an oven at
at drive end.
177 C (350 F) for two hours.
(12) Install fan (19) between drive shaft as-
(4) Retighten screws (2) to a torque of 75
s e m b l y (21) and the shaft of armature assem-
to 80 pound-inches after baking.
bly (45).
c. DC Generator.
( 1 3 ) Install a new compression spring (18)
(1) Mount bearing retainer (44, figure 3-
and flat washer (17). Use shaft holding wrench
1 ) and one dirt slinger (42) on the drive end
Q B 8 0 0 5 9 - 3 (table 2-2) to keep the drive shaft
of armature assembly (45).
from turning. Place a flat ring plate on top of
( 2 ) Mount bearing retainer (40) and cme
s h a f t and mount dial setting gage 1001 (table
dirt slinger (37) with flange toward bearing, on
3 ) so that the stem rests on flat washer (17),
the commutator end of armature assembly (45).
and dial is set on zero. Take the free length of
(3) Stand armature assembly (45) on stand
t h e compassion spring (1-5/32 inch) and sub-
1 1 0 6 2 1 0 (table 4). Heat ball bearings (39 and
t r a o t the compression spring assembled length
43) to 250F ( 121C) and install on shaft of ar-
(7/8 inch) from it. Install and tighten self-lock-
mature assembly (45), making sure that the dirt
i n g nut (16) until the dial setting gage (table
Slingers are properly positioned.
2-1) reads the difference between the two valves
( 9 / 3 2 inch). The compression spring assembled
( 4 ) Install the remaining dirt slingers (37
length should be 0.875 inch and the load on the
a n d 42) with flange toward bearing, and lock
r i n g s (36 and 41), using retaining ring pliers.
spring should be between 180 and 200 pounds.
3-12
