4-5.13. (6.5L) 400 AMPERE DUAL VOLTAGE ALTERNATOR (12446760) REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
b. Installation
NOTE
Prior to removal, tag leads for installation.
1. Position 3/8-in. breaker bar on belt tensioner (4), move tensioner (4) clockwise, and remove
drivebelt (1) from power steering pump pulley (3) and alternator pulley (2).
2. Remove nut (5), lockwasher (6), washer (7), ground strap (8), and washer (10) from stud (9). Discard
lockwasher (6).
.WARNING.
Alternator must be support during removal and installation. Failure to
do so may cause injury to personnel or damage to equipment.
3.
Remove nut (19), lockwasher (20), washer (21), screw (12), lockwasher (13), and washer (14) from
alternator bracket (15) and alternator mounting bracket (11). Discard lockwashers (13) and (20).
4.
Remove screw (18), lockwasher (17), washer (16), and bracket (15) from alternator (22) and
alternator mounting bracket (11). Discard lockwasher (17).
5.
Remove nut (28), lockwasher (27), washer (26), screw (23), washer (24), and alternator (22) from
alternator support bracket (25) and alternator mounting bracket (11). Discard lockwasher (27).
6.
Remove alternator pulley (2) (para. 4-3).
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Materials/Parts
Five lockwashers (Appendix G, Item 140.4)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Hood raised and secured (TM 9-2320-280-10).
• Battery ground cables disconnected (para. 4-73).
• Engine access cover removed (para. 10-15).
• Alternator cables removed (para. 4-5.12).
General Safety Instructions
Alternator must be supported during removal and
installation.
4-12.38
Change 2
TM 9-2320-280-20-2
1.
Install alternator pulley (2) (para. 4-3).
2.
Position alternator (22) on alternator mounting bracket (11).
3.
Install alternator (22) on alternator mounting bracket (11) and alternator support bracket (25) with
washer (24), screw (23), washer (26), lockwasher (27), and nut (28). Do not tighten nut (28).
4.
Install alternator bracket (15) on alternator mounting bracket (11) and alternator (22) with washer
(16), lockwasher (17), and screw (18). Do not tighten screw (18).
5.
Install washer (14), lockwasher (13), screw (12), washer (21), lockwasher (20), and nut (19) on
alternator mounting bracket (11) and alternator bracket (15).
6.
Tighten screw (18) to 40 lb-ft (54 N•m).
7.
Tighten nut (28) to 155 lb-ft (210 N•m).
