3-61. RADIATOR AND FAN SHROUD ASSEMBLY MAINTENANCE
This task covers:
a. Removal
c. Installation
b. Cleaning and Inspection
a. Removal
NOTE
The radiator and fan shroud are removed as a unit.
1.
Loosen clamp (2) and disconnect radiator inlet hose (1) from radiator (3).
2.
Loosen clamp (6) and disconnect surge tank-to-radiator vent hose (5) from adapter (7).
3.
Loosen clamp (16) and disconnect control valve hose (15) from shroud bulkhead adapter (17)
NOTE
M1123 and “A2” vehicles have a quick-disconnect on fan drive hose.
4.
Disconnect fan drive hose (18) from fan drive (19).
5.
Loosen clamp (10) and disconnect lower radiator front hose (11) from radiator (3).
NOTE
Perform step 6 only if shroud has to be removed from radiator.
6.
Remove rivet (3.1) (if installed) and strap (4) securing fan shroud (33) to radiator (3).
7.
Remove locknut (24), washer (25), capscrew (29), large washer (28), washer (25), and lower mount (26)
from radiator (3) and frame bracket (27). Discard locknut (24).
8.
Remove four locknuts (14), washers (13), and capscrews (12) from two rear support brackets (9) and
airlift brackets (8). Discard locknuts (14).
9.
Lift radiator (3) up and remove from vehicle.
10.
Remove eight capscrews (30), lockwashers, (31), two retaining strips (32) and fan shroud (33) from
radiator (3). Discard lockwashers (31).
11.
Remove two locknuts (20), washers (21), large washers (22), insulators (23), and brackets (9) from
radiator (3). Discard locknuts (20).
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Seven locknuts (Appendix G, Item 106)
Eight lockwashers (Appendix G, Item 110)
Rivet (Appendix G, Item 200.1) (optional)
Repair kit (Appendix C, Item 37) (optional)
Retaining strap (Appendix G, Item 176.1)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Hood removed (para. 10-5).
• Cooling system drained (para. 3-60).
• Oil cooler removed (para. 3-8).
General Safety Instructions
Compressed air used for cleaning purposes will not
exceed 30 psi (207 kPa).
TM 9-2320-280-20-2
3-110
Change 2
CAUTION
Do not bend transmission oil cooler fins. Damaged fins reduce cooling
efficiency, which may damage engine.
