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Page Title:
POWER PLANT HEATER REMOVAL, REPAIR, AND REPLACEMENT - continued |
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 TM 9-2320-209-34-2-3
FRAME
3
CAUTION
Do not use anything but a warm hand to warm up thermo-
stat (1). Flame or high heat will cause thermostat to
lose calibration.
1.
Hold warm hand on thermostat (1) for five minutes to warm it to 75F or
higher.
2.
Using an ohmmeter, check continuity through thermostat (1). Place one
ohmmeter lead on terminal (2) and other ohmmeter lead on terminal (3).
If circuit is open, go to step 4. If circuit is closed, go to frame 5.
3.
CAUTION
Do not place thermostat (1) or fuel control valve (4) in
any type of liquid to cool it. Thermostat and fuel control
valve are not sealed from liquids.
Place fuel control valve (4) in refrigerator set to 20F for 30 minutes.
4.
Do step 2 again.
5.
IF CIRCUIT IS OPEN, GO TO FRAME 5.
IF CIRCUIT IS CLOSED, GO TO FRAME 4
21-40
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