4-5.3. 100 AMPERE DUAL VOLTAGE ALTERNATOR (12447110) REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
NOTE
Prior to removal, tag leads for installation.
1.
Remove screw (5), lockwasher (6), washer (7), ground strap (8), and lead 3B (9) from ground point (11).
Discard lockwasher (6).
2.
Slide back rubber boot (4) and remove nut (3), washer (2), and alternator positive cable (1) from
positive stud (12).
3.
Loosen screw (15) on alternator adjustment bracket (16) and remove drivebelt (14) from alternator
pulley (13) on alternator (10).
WARNING
Alternator must be supported during removal. Failure to support
alternator may cause injury to personnel or damage to equipment.
4.
Remove screw (17) and washer (18) from alternator adjustment bracket (16).
5.
Remove nut (19), lockwasher (20), washer (21), screw (26), washer (27), and alternator (10) from
support bracket (28) and mounting bracket (29). Discard lockwasher (20).
6.
Remove three capscrews (24), washers (25), bushings (22), and fan guard assembly (23) from
alternator (10).
7.
Remove alternator pulley (13) (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
Lockwasher (Appendix G, Item 137)
Two lockwashers (Appendix G, Item 138)
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).
• Voltage regulator removed (para. 4-5.6).
General Safety Instructions
Alternator must be supported during removal and
installation.
TM 9-2320-280-20-2
4-12.6
Change 2
