TM 9-2320-280-20-2
3-75. THERMOSTAT REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Tools
Manual References
General mechanic’s tool kit:
TM 9-2320-280-24P
automotive (Appendix B, Item 1)
Equipment Condition
Materials/Parts
Cooling system drained as required (para. 3-60).
Gasket (Appendix G, Item 42)
Sealing compound (Appendix C, Item 44)
a. Removal
1. Remove capscrew (5), stud (4), thermostat housing (3), thermostat (2), and gasket (6) from water
crossover (1). Discard gasket (6).
2. Clean gasket surface on water crossover (1) and thermostat housing (3).
b. Installation
1. Install thermostat (2) into water crossover (1) ensuring valve sensor (7) points toward crossover (1).
2. Position gasket (6) on thermostat housing (3). Apply sealing compound to fastener threads and
insert capscrew (5) and stud (4) to align gasket (6).
3. Install thermostat housing (3) over thermostat (2) on water crossover (1) with capscrew (5) and stud (4).
Tighten capscrew (5) and stud (4) to align gasket (6).
FOLLOW-ON TASK: Fill cooling system (para. 3-60).
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