TM 10-4130-237-14
4-32.
HIGH TEMPERATURE THERMAL SWITCH REPLACEMENT (CONT)
a. Testing
1 Check that water temperature is below 120°F (49°C).
2 Locate two terminals on back of high temperature thermal switch.
3 Place multimeter red lead on one terminal. Place black lead on other terminal. Multimeter should show
more than 1 ohm.
4 If multimeter does not show more than 1 ohm, replace switch.
b. Removal
1 Perform steps 1 through 8 of paragraph 4-3 la.
2 Desolder two wires from thermal switch. Remove thermal switch.
c.
Installation
1 Install new thermal switch. Solder two wires to thermal switch terminals.
2 Perform steps 12 through 18 of paragraph 4-3 lb.
4-33.
RELIEF VALVE REPAIR
This task covers:
a. Disassembly
b. Assembly
c.
Adjustment
4-90
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l
