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 - Page 699 of 1168
12-65. SWINGFIRE HEATER PUMP ASSEMBLY, BRACKET, AND LOWER HOSE
REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
1.
Disconnect lead 81G (2) and ground wire lead (1) from heater pump leads (3).
2.
Loosen clamp (9) and disconnect outlet hose (10) from heater pump (4).
3.
Loosen clamps (5) and (7) and disconnect inlet hose (6) from heater pump (4) and radiator lower
tube assembly (8).
4.
Remove clamps (5) and (7) from inlet hose (6).
5.
Remove clamp (11) and heater pump (4) from bracket (15).
6.
Remove two nuts (14), lockwashers (13), and bracket (15) from water pump studs (12). Discard
lockwashers (13).
Manual References
TM 9-2320-280-24P
Equipment Condition
• Battery ground cable disconnected (para. 4-73).
• Cooling system drained as required (para. 3-60).
TM 9-2320-280-20-3
Change 2
12-93
NOTE
Prior to removal, tag leads for installation.
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 lockwashers (Appendix G, Item 191)
1
2
3
4
5
6
7
8
9
~
10
11
12
13
14
4
15
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