TM-9-2320-280-34

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

JANUARY 1996

TM-9-2320-280-34 - Page 325 of 1258

6 - 3 . 2 . 100 AMPERE ALT E R N ATOR (12342944) TESTING AND REPAIR (Cont’d)

TM 9-2320-280-34

6 - 1 8 . 2 0

Change 1

b. Disassembly

NOT E

Complete alternator disassembly is not required for static testing.

1±

.

Insert core and shaft assembly (1) in soft-jawed vise and remove locknut (4), washer (3), and fan (2).

Discard locknut (4).

2.

Remove bearing bushing (5) from core and shaft assembly (1).

3

.

Remove four screws (6), lockwashers (7), and plate cover (8) from front housing (9). Discard lockwashers (7).

4.

Scribe alignment marks (12) on front housing (9), stator/field core assembly (10), and end housing

assembly (11).

5.

Remove nine locknuts (18) from studs (19) and end housing assembly (17) Discard locknuts (18).

6.

Use a puller to remove end housing assembly (17) from stator/field coil assembly (10).

7.

Remove three screws (16), lockwashers (15), and washers (14) from rotor assembly (13) and core

and shaft assembly (1). Discard lockwashers (15).

8

.

Use three 10-32 x 2-in. long machine screws (22) as jacks in threaded holes (20) on end plate of rotor

assembly (13). Gradually tighten screws (22) to remove rotor assembly (13) from core and shaft

assembly (1). Remove rotor assembly (13) and screws (22).

9.

Use a press or bearing puller to remove rear bearing (21) from core and shaft assembly (1).