TM-9-2320-280-20-3

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 3 OF 3

JANUARY 1996

  TM-9-2320-280-20-3 - Page 752 of 1168

This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
M998, M998A1, M1038, M1038A1
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Adhesive (Appendix C, Item 7)
Two lockwashers (Appendix G, Item 178)
Lockwasher (Appendix G, Item 189)
Tiedown strap (Appendix G, Item 309)
Tiedown strap (Appendix G, Item 313)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
Battery ground cable disconnected (para. 4-73).
a. Removal
TM 9-2320-280-20-3
12-146
Change 2
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.
1.
Remove nut (6), lockwasher (7), fuel pump ground lead 799B (10) and lead 2A (8) from shunt
stud (9). Discard lockwasher (7).
2.
Remove nut (15), lockwasher (14), starter cable (13), and lead 1A (12) from power stud (11). Discard
lockwasher (14).
3.
Disconnect lead FP (1) from adapter (2).
4.
Remove tiedown strap (4) and heater wiring harness (3) from transmission vacuum line (5). Discard
tiedown strap (4).
5.
Disconnect cannon plug (25) from control box inner shell (27).
6.
Remove two screws (26) and control box inner shell (27) from outer shell (28).
7.
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).
8.
Disconnect lead 1C (23) from control box lead 400 (22).
9.
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).
10.
Disconnect lead 2B (31) from lead 2A (30).
11.
Disconnect lead 1B (36) from circuit breaker (35).
12.
Disconnect cannon plug (32) from heater (33) and remove heater wiring harness (3).
13.
Remove plastic sleeve (34) from heater wiring harness (3).
12-101. TROOP/CARGO WINTERIZATION HEATER WIRING HARNESS REPLACEMENT


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