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 536 of 1015
3-59. RADIATOR
TM 9-2320-272-272-1
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
M939/A1
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
MATERIALS/PARTS
Locknut (Appendix D, Item 273)
Five locknuts (Appendix D, Item 291)
Two locknuts (Appendix D, Item 313)
Six locknuts (Appendix D, Item 294)
Two lockwashers (Appendix D, Item 360)
Two lockwashers (Appendix D, Item 382)
Six lockwashers (Appendix D, Item 350)
Three rubber mounts (Appendix D, Item 263)
Antiseize tape (Appendix C, Item 72)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272~24P
EQUIPMENT CONDITION
• Parking brake set (TM 9-2320-272-10).
• Hood raised and secured (TM 9-2320-272-10).
• Right and left splash shields removed
(TM 9-2320-272-1).
• Cooling system drained (para. 3-53).
• Fan shroud removed (para. 3-63).
1.
Disconnect radiator vent hose (18) from radiator (19).
2.
Remove two locknuts (6), washers (8), screws (9), and hood stop cables (7) from upper radiator
bracket (1). Discard locknuts (6).
3.
Remove two screws (4), lockwashers (3), and washers (2) from upper radiator bracket (1). Discard
lockwashers (3).
4.
Remove two locknuts (5), screws (15), and clamps (20) from upper radiator bracket (1). Discard
locknuts (5).
5.
Remove two locknuts (11), washers (12), screws (14), and upper radiator bracket (1) from engine
bracket (10). Discard locknuts (11).
NOTE
Perform step 6 only if rubber mounts are damaged or new radiator
is being installed.
6.
&move two rubber mounts (13) from engine bracket (10). Discard rubber mounts (13).
7.
Loosen clamp (17) and disconnect radiator hose (16) from radiator (19).
8.
Remove adapter (22) and two elbows (21) from radiator (19).
9.
Remove two plugs (23) and drainvalve (24) from radiator (19).
10.
Loosen clamp (25) and disconnect radiator outlet hose (26) from radiator (19).
11.
Remove locknut (29), screw (37), and washer (36) from brackets (34) and (28). Discard locknut (29).
NOTE
Assistant will help with steps 12 and 13.
12.
Remove four locknuts (30), two screws (33), and screws (38) from radiator support (34). Discard
locknuts (30).
13.
Remove radiator (19) from vehicle.
NOTE
Perform step 14 only if rubber mount is damaged or a new
radiator is being installed.
3-172
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