TM 5-3810-294-34
j.
Use d suitable puller and remove housing
KEY to FIG. 3-1.
(37) from rotor (38). Pull bearing (40) and packing (41)
from rotor shaft. Remove stator (42).
1.
Screw
33.
Sealsleeve
k. Remove rectifier mounts (43 and 44) from
2.
Self-locking nut
34.
Packing
intermediate housing. Remove rectifiers (45 and 46)
3.
Washer
35.
Seal
from the rectifier mounts.
Remove screws (47),
4.
Spacer
36.
Screw
lockwashers (48), guard washers (49), washers (50) and
5.
Drive end housing
37.
Housing
insulators (51). Remove bushings (521.
6.
Screw
38.
Rotor
I.
Remove screws (53) and insulators
7.
Regulator
39.
Intermediate housing
(54).Remove stud (55), nut (56) and pin (57).
8.
Ball bearing
40.
Ball bearing
m. Remove nut (58) and guard washer (59).
9.
Packing
41.
Packing
n. Remove screws (60), lockwashers (61),
10.
Spacer
42.
Stator
plate (62), and gasket (63). Remove plug (64).
11.
Packing
43.
Negative rectifier mount
12.
Screw
44.
Positive rectifier mount
3-4.
Cleaning
13.
Receptacle
45.
Rectifier assembly
14.
Seal
46.
Rectifier assembly
Clean all metal parts in dry cleaning solvent (Federal
15.
Seal
47.
Screw
Specification P-S-661)
and dry thoroughly with
16.
Screw
48.
Lockwasher
compressed air.
17.
Lockwasher
49.
Guard washer
18.
Washer
50.
Washer
3-5.
Inspection and Repair
19.
Brush holder
51.
Insulator
20.
Brush
52.
Bushing
a. Inspect all electrical parts for frayed or
21.
Screw
53.
Screw
deteriorated insulation. Check all varnish and epoxy
22.
Lockwasher
54.
Insulator
coated components for bare spots and recover if
23.
Cover
55.
Stud
necessary.
24.
Screw
56.
Nut
b. Check rotor for wear on bearing surfaces
25.
Screw
57.
Pin
and for loose or damaged slip rings. Replace rotor if
26.
Clamp
58.
Nut
worn or damaged.
27.
Capacitor
59.
Guard washer
c. Replace all packings and seals.
28.
Gasket
60.
Screw
d. Perform electrical tests in accordance with
29.
Screw
61.
Lockwasher
TM 5-3810-294-20.
30.
Washer
62.
Plate
31.
Fan
63.
Gasket
3-6.
Reassembly and Installation
32.
Key
64.
Plug
a. Remove screws (1), nut (2), washer (3),
Refer to figure 3-1 and reassemble the alternator as
spacer (4) and remove drive end housing (5), using a
follows.
a. Install stator (42) in intermediate housing
suitable pulley to remove housing from shaft.
b. Remove screws (6) and remove regulator
(39). Press or tap stator to install in housing.
b. Install bushings (52). Install rectifiers (45
(7) from drive end housing.
c. Press bearing (8) from drive end housing by
and 46) and insulators (51) on mounts (43 and 44) and
pressing on pulley side of bearing. Remove packing (9)
install mounts in intermediate housing. Install nut (56),
and spacer (10) from housing.
stud (55) insulator (54) and screws (53). Install washers
d. Remove packing (11). Remove screws
(50), guard washers (49), lockwashers (48), and screws
(12) and remove receptacle (13).
(47).
e. Remove seals (14 and 15).
c. Press bearing (8), packing (9) and spacer
f.
(10) into drive end housing (5).
Disconnect wires and remove screws (16)
d. Install receptacle (13) and secure with
lockwashers (17), and guard washers (18) and remove
screws (12).
brush holder (19). Remove brushes (20) from holder.
g. Remove screws (21) and lockwashers (22)
e. Install regulator (7) and secure with screws
and remove cover (23). Remove screws (24 and 25),
(6). Install washer (59) and nut (58).
f.
clamp (26), and remove capacitor (27) and gasket (28)
Press seals (15 and 14) in intermediate
from intermediate housing.
housing with smooth face of seal toward pulley end of
h. Remove screw (29) and washer (30) and
alternator. Apply suitable grease in cavity between two
seal lips.
remove fan (31) and key (32) from rotor shaft. Remove
g. Install rotor (38) in intermediate housing
seal sleeve (33), packing (34), and seal (35) from fan
hub.
and stator. Cover shaft of rotor with suitable guide made
i.
Remove screws (36) and remove housing
of shim stock to prevent damage to seal when installing
rotor.
(37) and rotor (38) from intermediate housing (39).
h. Install brushes (20) in brush holder (19) and
install brush holder in housing. Secure brush holder with
screws (16), lockwashers (17) and guard washers (18).
i.
Support rotor and stator on press and press
drive end housing (5) on rotor shaft, using new
3-2
