TM 5-4310-452-14
5-21. ALTERNATOR REPAIR (Con't).
14. Remove nut (2), lockwasher (3), fan impeller (1), key (8), and spacer (4) from rotor assembly (9). Discard
lockwasher and spacer.
15. Drive rotor assembly (9) out of front housing (5).
16. Remove retaining ring (7) from front housing (5). Discard retaining ring.
17. Using bearing puller, remove bearing (6) from front housing (5).
b.
ASSEMBLY
NOTE
When installing bearing into front housing, use a driver that contacts ONLY the outer race of the
bearing.
1.
Using arbor press, install bearing (6) into front housing (5).
2.
Install new retaining ring (7) in recess of front housing (5) so tabs aline with opening of housing.
NOTE
When installing front housing into rotor assembly, use a driver that contacts ONLY the inner race
of the bearing.
3.
Using arbor press, install front housing (5) onto rotor assembly (9).
4.
Install new spacer (4), key (8), fan impeller (1), new lockwasher (3), and nut (2) on rotor assembly (9).
5.
Using arbor press, install bearing (10) on rotor assembly (9).
6.
Install new preformed packing (15) in rear housing (16).
7.
Install semiconductor device (33) with nut (29), washer (30), and insulator (31).
8.
Connect stator (11) electrical leads to semiconductor devices (12 and 13).
9.
Install spacer (28) and insulator (14) on terminal.
10. Install 2 sleeves (32) and semiconductor device (33) on terminals.
11. Install stator (9) and 2 semiconductor devices (12 and 13) in rear housing (16).
12. Install nut (23), new lockwasher (20), flatwasher (19), and insulator (18) on terminal.
13. Install 2 new self-locking nuts (24), 2 flatwashers (26), and insulators (27) on terminals.
14. Position front housing (5) on rear housing (16) and aline screw holes.
15. Install 4 screws (25) in rear housing (16) and front housing (5).
16. Position electric brush assembly (17) in place and install cover (21) and 2 screws (22).
FOLLOW-ON TASKS:
• Install voltage regulator (see paragraph 4-38).
• Install alternator (see paragraph 4-36).
5-49
