a. Removal
TM 9-2320-280-20-3
12-65. SWINGFIRE HEATER PUMP ASSEMBLY, BRACKET, AND LOWER HOSE
REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
M966, M966A1, M996, MM996A1, 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 133)
Manual References
TM 9-2320-280-24P
Equipment Condition
• Battery ground cable disconnected (para. 4-73).
• Cooling system drained as required (para. 3-60).
NOTE
Prior to removal, tag leads for installation.
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).
12-93
