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 552 of 991
3-446. LIGHTWEIGHT
TM 9-2320-272-24-2
THIS TASK COVERS:
a. Removal
b. Disassembly
c. Assembly
d. Installation
INITIAL SETUP:
APPLICABLE MODELS
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-272-10).
Cab top removed (TM 9-2320-272-10).
Spare tire removed (TM 9-2320-272-10).
Backrest cushion on companion seat assembly
folded down (TM 9-2320-272-10).
Companion seat and battery box moved forward to
gain access to cab (TM 9-2320-272-10).
Batteries removed (para. 3-125).
Muffler shield assembly removed (para. 3-51).
Left and right cab door check rods removed
(para. 3-318).
Left and right door assemblies removed (para. 3-319).
Left and right mirror assemblies removed
M939/A1/A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 146)
Lifting device
Four utility chains
MATERIALS/PARTS
One hundred eight locknuts
(Appendix D, Item 337)
Eight locknuts (Appendix D, Item 338)
Locknut (Appendix D, Item 335)
Four locknuts (Appendix D, Item 336)
Eight lockwashers (Appendix D, Item 414)
Six cotter pins (Appendix D, Item 79)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
(para. 3-319).
Driver’s seat removed (para. 3-283).
Right and left cowl ventilation door screens
removed (para. 3-299).
GENERAL SAFETY INSTRUCTIONS
All personnel must stand clear during lifting
onerations.
WARNING
All personnel must stand clear during lifting operations. A
snapped chain, or shifting or swinging load, may result in injury
to personnel.
NOTE
It may be necessary to remove left and right reinforcement panels
from rear of cab to gain access to U-bolt nuts.
1.
Remove four locknuts (7), eight washers (4), four screws (3), and braces (6) from support
assembly (10). Discard locknuts (7).
2.
Remove eight locknuts (8), sixteen washers (1), eight screws (2), four ammo tray supports (5) and
ammo box tray (9) from under left and right front sides of support assembly (10). Discard locknuts (8).
3-1160
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