TM-9-2320-280-20-3

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 3 OF 3

JANUARY 1996
TM-9-2320-280-20-3

  TM-9-2320-280-20-3 - Page 696 of 1168

12-63. SWINGFIRE HEATER RADIATOR LOWER TUBE ASSEMBLY REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
1.
Remove two locknuts (5), washers (3), capscrews (2), and washers (3) from radiator lower tube
assembly (12) and frame bracket (4). Discard locknuts (5).
2.
Loosen clamp (9) and disconnect water pump inlet hose (8) from radiator lower tube assembly (12).
3.
Loosen clamp (6) and disconnect swingfire heater pump hose (7) from radiator lower tube
assembly (12).
4.
Loosen clamp (11) and disconnect surge tank hose (10) from radiator lower tube assembly (12).
5.
Loosen clamp (13) and disconnect lower radiator hose (1) from radiator lower tube assembly (12).
6.
Remove radiator lower tube assembly (12).
7.
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).
INITIAL SETUP:
Applicable Models
M966, M966A1, M996, M996A1, M997,
M997A1, M997A2, M998, M998A1, M1025,
M1025A1, M1025A2, M1037, M1038, M1038A1
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Two locknuts (Appendix G, Item 70)
Manual References
TM 9-2320-280-24P
Equipment Condition
Cooling system drained (para. 3-60).
b. Installation
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).
TM 9-2320-280-20-3
12-90
Change 2


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