a. Removal
Equipment Condition
TM 9-2320-280-20-3
12-101. TROOP/CARGO WINTERIZATION HEATER WIRING HARNESS REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Manual References
M998, M998A1, M1038, M1038A1
TM 9-2320-280-10
TM 9-2320-280-24P
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Battery ground cable disconnected (para. 4-73).
Materials/Parts
Adhesive (Appendix C, Item 7)
Lockwasher (Appendix G, Item 116)
Lockwasher (Appendix G, Item 115)
Lockwasher (Appendix G, Item 139)
Two tiedown straps (Appendix G, Item 243)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
NOTE
• Depending on what kits are installed on the vehicle, there may
be unidentified leads on the shunt stud and power stud. These
leads must remain on the studs.
• Prior to removal, tag leads for installation.
Remove nut (6), lockwasher (7), fuel pump ground lead 799B (10) and lead 2A (8) from shunt
stud (9). Discard lockwasher (7).
Remove nut (15), lockwasher (14), starter cable (13), and lead 1A (12) from power stud (11). Discard
lockwasher (14).
Disconnect lead FP (1) from adapter (2).
Remove tiedown strap (4) and heater wiring harness (3) from transmission vacuum line (5). Discard
tiedown strap (4).
Disconnect cannon plug (25) from control box inner shell (27).
Remove two screws (26) and control box inner shell (27) from outer shell (28).
Remove crown nut (19), nut (20), lockwasher (16), capscrew (24), ground lead 2C (18), and ground
lead (17) from angle bracket (29). Discard lockwasher (16).
Disconnect lead 1C (23) from control box lead 400 (22).
Remove tiedown strap (21) from ground lead 2C (18), ground lead (17), control box lead 400 (22), and
heater wiring harness (3). Discard tiedown strap (21).
Disconnect lead 2B (31) from lead 2A (30).
Disconnect lead 1B (36) from circuit breaker (35).
Disconnect cannon plug (32) from heater (33) and remove heater wiring harness (3).
Remove plastic sleeve (34) from heater wiring harness (3).
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