4-5.6. 100 AMPERE DUAL VOLTAGE ALTERNATOR REGULATOR (PART OF 12447110)
REPLACEMENT
This task covers:
a. Removal
b.
Installation
a. Removal
1.
Disconnect voltage regulator plug (21) from voltage regulator connector (19).
2.
Slide back rubber boot (13) and remove nut (14) and lead 568A (12) from IGN terminal (11).
3.
Slide back rubber boot (15) and remove nut (17) and lead 2A (16) from AC terminal (18).
4.
Remove nut (9) and ground wire (5) from 14-volt stud (10) on voltage regulator (23).
5.
Disconnect alternator connector (22) from voltage regulator connector (4).
6.
Remove screw (8), lockwasher (7), washer (6), and ground wire (5) from voltage regulator (23) and
alternator (20). Discard lockwasher (7).
7.
Remove three screws (3), lockwashers (2), washers (1), and voltage regulator (23) from
alternator (20). Discard lockwashers (2).
1INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Materials/Parts
Three lockwashers (Appendix G, Item 131)
Lockwasher (Appendix G, Item 132)
Sealant (Appendix C, Item 44)
Grease (Appendix C, Item 25)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Battery ground cables disconnected (para. 4-73).
• Hood raised and secured (TM 9-2320-280-10).
1.
Install voltage regulator (23) on alternator (20) with three washers (1), lockwashers (2), and
screws (3). Tighten screws (3) to 30-34 lb-in. (3-4 N•m).
2.
Install one end of ground wire (5) on voltage regulator (23) with washer (6), lockwasher (7), and
screw (8). Tighten screw (8) to 88-94 lb-in. (10-11 N•m).
3.
Install other end of ground wire (5) on 14-volt stud (10) with nut (9). Tighten nut (9) to 45-55 lb-in.
(5-6 N•m) and apply sealant to nut (9) and 14-volt stud (10).
4.
Connect alternator connector (22) to voltage regulator connector (4).
5.
Install lead 568A (12) on IGN terminal (11) with nut (14). Tighten nut (14) to 23-27 lb-in. (2.6-
3.0 N•m).
6.
Apply grease to IGN terminal (11), lead 568A (12), and inside of boot (13), and slide rubber boot (13)
over terminal (11).
7.
Install lead 2A (16) on AC terminal (18) with nut (17). Tighten nut (17) to 18-22 lb-in. (2.0-2.5 N•m).
8.
Apply grease to AC terminal (18), lead 2A (16), and inside of boot (15), and slide rubber boot (15)
over terminal (18).
9.
Connect voltage regulator plug (21) to voltage regulator connector (19).
4-12.16
Change 2
b. Installation
NOTE
Prior to removal, tag leads for installation.
TM 9-2320-280-20-2
