a. Removal
b. Installation
TM 9-2320-280-20-3
12-23. 100 AMPERE ALTERNATOR (12340912) REPLACEMENT
This task covers:
a Removal
b. Installation
INITIAL SETUP
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Silicone (Appendix C, Item 48)
Three lockwashers (Appendix G, Item 115)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Battery ground cable disconnected (para. 4-73).
• Hood raised and secured (TM 9-2320-280-10).
General Safety Instructions
Alternator must be supported during removal
and installation.
1. Loosen two clamp nuts (12) and remove clamp pins (7) from regulator slots (6).
2. Loosen connector plug (4) and remove regulator (5) from alternator (13) and position
regulator (5) out of the way.
3. Loosen capscrew (20) on alternator adjusting bracket (19), and two capscrews (10) on alternator
mounting bracket (18) and support bracket (17).
4. Remove two drivebelts (1) from alternator pulley (2).
WARNING
Alternator must be supported during removal and installation. Failure
to do this may cause injury to personnel or damage to equipment.
5. Remove capscrew (14), lockwasher (15), and washer (16) from alternator (13) and adjusting
bracket (19). Discard lockwasher (15).
NOTE
• Perform step 7 for vehicles with new alternator support bracket
configuration.
• In some cases, a thru-bolt and nut may be present on mounting
bracket instead of standard capscrews and washers.
6. Remove two capscrews (10), lockwashers (11), and alternator (13) from mounting bracket (18) and
support bracket (17). Discard lockwashers (11).
7. Remove two capscrews (10), lockwashers (11), washer (22), spacer (24), and alternator (13) from power
steering lines bracket (23), support bracket (17), and mounting bracket (18). Discard lockwashers (11).
8. Remove guard (9) and two clamp straps (8) from alternator (13).
9. Remove alternator pulley (2) (para. 4-3).
1.
2.
3.
12-30
Install alternator pulley (2) (para. 4-3).
Install two clamp straps (8) and guard (9) on alternator (13).
NOTE
• Perform step 4 for vehicles with new alternator support bracket
configuration.
• In some cases, a thru-bolt and nut may be present on mounting
bracket instead of standard capscrews and washers.
Install alternator (13) on mounting bracket (18) and support bracket (17) with two lockwashers (11)
and capscrews (10). Tighten capscrews (10) finger tight.
