TM 5-3895-354-14&P
Section C. NORMAL INSTRUMENT READING AND GAUGES
5.
Instruments and Readings
a.
High temperature limit control - set at 4500F.
b.
Fuel oil pressure gauge, 0-600 PSI range - normal reading 300 PSI
c.
Pressuretrol - 0-75 PSI range - set at 15 PSI
d.
Hot oil pressure gauge, 0-200 PSI range - normal reading 35 PSI
e.
Hot oil temperature gauge - 50-550 F normal reading same as temperature control setting
f.
Temperature control - 100-550F set at required temperature
6. Gauges
There are five gauges mounted on the hot oil heater. Four gauges are used to indicate actual operating
conditions. The fifth is used to indicate the liquid level of thermal oil in the hot oil heater. The hot oil
temperature gauge and hot oil pressure gauge indicate actual operating pressure and temperature of the
transfer oil. The cold seal tank temperature gauge Indicates the temperature of the cold seal tank. The fuel
oil pressure gauge indicates the pressure of the fuel oil out of the fuel pump. The liquid level sight gauge
indicates that the expansion tank is full or nearly full at a safe operating level or that the hot oil heater is
approaching shut down because of insufficient heat transfer oil
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