TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 602 of 1015
3-83. INSTRUMENT
TM
9-2320-272-24-1
THIS TASK COVERS:
a. Removal
b. Disassembly
c. Assembly
d. Installation
APPLICABLE
MODELS
EQUIPMENT CONDITION
All
Parking brake set (TM 9-2320-272-10).
TOOLS
Air reservoirs drained (TM 9-2320-272-10).
General mechanic’s tool kit (Appendix E, Item 1)
Hood raised and secured (TM 9-2320-272-10).
Battery ground cables disconnected (para. 3-126).
MATERIALS/PARTS
Disconnect CTIS electrical components (M939A2)
(para. 3-470).
Three spring nuts (Appendix D, Item 673)
Three cotter pins (Appendix D, Item 53)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-20P
GENERAL SAFETY INSTRUCTIONS
Do not disconnect air lines before draining air
reservoirs. Small parts under pressure may shoot
out with high velocity, causing injury to personnel.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Remove screw (15), clamp (3), cable (1), and retaining clip (4) from diverter bracket (6).
Remove cotter pin (16) from control rod (5). Discard cotter pin (16).
Tag cables for installation.
Remove cable (1) and spring nut (2) from control rod (5). Discard spring nut (2).
Remove screw (14), clamp (10), cable (13), and retaining clip (8) from diverter bracket (7).
Remove cotter pin (12) from control rod (9). Discard cotter pin (12).
Remove heat control cable (13) and spring nut (11) from control rod (9). Discard spring nut (11).
Remove screw (20), retaining nut (22), and clamp (21) from heater assembly (17).
Remove cotter pin (23) from heater assembly (17). Discard cotter pin (23).
Remove fresh air control cable (19) and spring nut (18) from heater assembly (17). Discard spring
Remove eight screws (26) from instrument cluster (25).
Separate instrument cluster (25) from instrument panel (24).
3-238
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