TM-9-2320-272-24-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4
JUNE 1998
TM-9-2320-272-24-2 - Page 506 of 991
TM 9-2320-272-24-2
3-433. CONVOY WARNING LIGHT HARNESS REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
APPLICABLE MODELS
REFERENCES (TM)
All (except M929/A1/A2, M930/A1/A2,
TM 9-2320-272-10
M934/A1/A2)
TM 9-2320-272-24P
TOOLS
EQUIPMENT CONDITION
General mechanic’s tool kit (Appendix E, Item 1)
Parking brake set (TM 9-2320-272-10).
MATERIALS/PARTS
Hood raised and secured (TM 9-2320-272-10).
Toolbox removed (para. 3-302).
Locknut (Appendix D. Item 288)
Battery ground cables disconnected (para. 3-126).
Lockwasher (Appendix D, Item 405)
Fifteen tiedown straps (Appendix D, Item 687)
Six tiedown straps (Appendix D, Item 685)
NOTE
Perform steps 1 and 2 for left and right rear of cab.
1.
Disconnect four cable leads (6) from harness (7).
2.
Remove locknut (5), ground lead (4), washer (3), lockwasher (2), and screw (10) from frame (11) and
rear step hanger (9). Discard locknut (5) and lockwasher (2).
3.
Remove six tiedown straps (1) and harness (7) from cab crossmember (8). Discard tiedown straps (1).
NOTE
Note routing of harness lead for installation.
4.
Remove fifteen tiedown straps (17) and harness lead (15) from front main wiring harness (16).
Discard tiedown straps (17).
5.
Remove screw (14), clip (13), and harness lead (15) from relay (12).
1.
Install harness lead (15) on relay (12) with clip (13) and screw (14) .
NOTE
Perform steps 2 and 3 for left and right rear of cab.
2.
Install screw (10), new lockwasher (2), washer (3), ground lead (4), and new locknut (5) on rear step
hanger (9) and frame (11).
3.
Connect four cable leads (6) to harness (7).
NOTE
Tiedown straps must be installed 10 in. (25 cm) apart.
4.
Install harness (7) on cab crossmember (8) with six new tiedown straps (1).
5.
Install harness lead (15) on front main wiring harness (16) with fifteen new tiedown straps (17).
3-1114
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