4-8.1. 400-AMPERE DUAL VOLTAGE REGULATOR REPLACEMENT
This task covers:
a. Removal
b.
Installation
a. Removal
NOTE
Prior to removal, tag leads for installation.
1.
Disconnect regulator plugs (12) and (13) from connectors (9) and (10) on voltage regulator (11).
2.
Slide back rubber boot (5) and remove nut (4), lead 5A (6), and washer (7) from red terminal (8) on
voltage regulator (11).
3.
Slide back rubber boot (2) and remove nut (1), lead 2A (3), and washer (24) from yellow
terminal (25) on voltage regulator (11).
4.
Slide back rubber boot (20) and remove nut (19), lead 68A (18), and washer (17) from 14 volt output
terminal (15) on voltage regulator (11).
5.
Remove three screws (23), lockwashers (22), washers (21), voltage regulator (11), and three
spacers (16) from alternator (14). Discard lockwashers (22).
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
Two lockwashers (Appendix G, Item 231)
Lockwasher (Appendix G, Item 232)
Grease (Appendix C, Item 36)
Manual References
TM 9-2320-387-10
TM 9-2320-387-24P
Equipment Condition
• Battery ground cables disconnected (para. 4-68).
• Hood raised and secured (TM 9-2320-387-10).
1.
Install three spacers (16) and voltage regulator (11) on alternator (14) with three washers (21),
lockwashers (22), and screws (23). Tighten screws (23) to 30-34 lb-in. (3-4 N•m).
2.
Install washer (7), lead 5A (6), and nut (4) on red terminal (8) of voltage regulator (11). Tighten
nut (4) to 35 lb-in. (4 N•m).
3.
Apply grease to red terminal (8), lead 5A (6), and inside of rubber boot (5), and slide boot (5) over
red terminal (8).
4.
Install washer (24), lead 2A (3), and nut (1) on yellow terminal (25) of voltage regulator (11).
Tighten nut (1) to 20 lb-in. (2 N•m).
5.
Apply grease to yellow terminal (25), lead 2A (3), and inside of rubber boot (2), and slide boot (2)
over yellow terminal (25).
6.
Install washer (17), lead 68A (18), and nut (19) on 14 volt output terminal (15) of voltage regulator
(11). Tighten nut (19) to 50 lb-in. (6 N•m).
7.
Apply grease to 14 volt output terminal (15), lead 68A (18), and inside of rubber boot (20), and slide
boot (20) over 14 volt output terminal (15).
8.
Connect regulator plugs (12) and (13) to connectors (9) and (10) on voltage regulator (11).
4-18.2
Change 1
b. Installation
TM 9-2320-387-24-1
