TM 9-2320-280-20-3
a. Removal
b. Installation
12-63. SWINGFIRE HEATER RADIATOR LOWER TUBE ASSEMBLY REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Manual References
M966, M966A1, M996, M996A1, M997,
TM 9-2320-280-24P
M997A1, M997A2, M998, M998A1, M1025,
M1025A1, M1025A2, M1037, M1038, M1038A1
Equipment Condition
Cooling system drained (para. 3-60).
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Two locknuts (Appendix G, Item 58)
1.
2.
3.
4.
5.
6.
7.
Remove two locknuts (5), washers (3), capscrews (2), and washers (3) from radiator lower tube
assembly (12) and frame bracket (4). Discard locknuts (5).
Loosen clamp (9) and disconnect water pump inlet hose (8) from radiator lower tube assembly (12).
Loosen clamp (6) and disconnect swingfire heater pump hose (7) from radiator lower tube
assembly (12).
Loosen clamp (11) and disconnect surge tank hose (10) from radiator lower tube assembly (12).
Loosen clamp (13) and disconnect lower radiator hose (1) from radiator lower tube assembly (12).
Remove radiator lower tube assembly (12).
Remove clamps (9), (6), (11), and (13) from water pump inlet hose (8), swingfire heater pump hose (7),
surge tank hose (10), and lower radiator hose (1):
1. Install clamps (9), (6), (11), and (13) on water pump inlet hose (8), swingfire heater pump hose (7),
surge tank hose (10), and lower radiator hose (1).
2. Connect lower radiator hose (1) to radiator lower tube assembly (12) with clamp (13).
3. Connect surge tank hose (10) to radiator lower tube assembly (12) with clamp (11).
4. Connect swingfire heater pump hose (7) to radiator lower tube assembly (12) with clamp (6).
5. Connect water pump inlet hose (8) to radiator lower tube assembly (12) with clamp (9).
6. Connect radiator lower tube assembly (12) to bracket (4) with two washers (3), capscrews (2),
washers (3), and locknuts (5).
12-90
