TM 5-3655-210-12
appears at valve 10, close the valve and engage the
toggle switch (2, fig. 2-2) on the engine panel should be
transfer pump clutch. Continue to pump liquid into the
in the trailer position. The circuit breaker (3), mounted
pressure vessels until they are full. To determine when
on the engine control panel should be ON or in the up
the tank is full, check as follows:
position. Prime the carburetor. Hold the gasoline
(1) Determining Liquid Level While Pumping.
engine START switch (12) mounted on the engine
(a) Liquid Level Gage. The unit is equipped so
control panel up, until the engine starts,; then release
the switch. To stop the engine hold the engine STOP
that the liquid level gages (2 and 4, fig. 2-4) indicate the
switch (11) up until the engine is completely stopped.
contents of the pressure vessels (in tenths of capacity)
b. Set the valves as indicated in Figure 2-13 and
even during pumping. Thus the contents can be
determined by reading the gages and allowing for slight
start the driving unit. Refer to Table 2-1 for valve
time lag.
identification.
(b) Liquid in Vapor Equalizing Line. When
c. Remove the caps and connect the liquid and
filling the pressure vessels, it is usually desirable to fill
vapor transfer hoses (5 and 10, fig. 2-18) or (5 and 10,
them completely. The normal course of the carbon
fig. 2-19) (stored in the storage compartment) to the
dioxide during filling is for liquid to enter at the bottom of
liquid fill line (5, fig. 2-11) and vapor equalizing line (2)
the vessels while carbon dioxide vapor flows out at the
at the rear of the trailer, and to the liquid supply unit.
d. Close valves 1, 3, 10, 27, and 28 (fig. 2-20).
top of the vessels, returning to the tank from which the
liquid is being pumped. When the liquid level in the
Open the liquid fill and vapor equalizing valves on the
pressure vessel rises until it reaches the bottom of the
liquid supply unit.
e. Open valves 1, 2, 7, and 10. When liquid
vapor equalizing dip tube inside the vessel, the tank is
at full capacity.
1. Bracket
4
Capscrew
7
Fire extinguisher
10 Transfer hose (liquid)
2. Nut
4
Transfer hose (vapor)
8
Quick release clamp
11 Cylinder filling hoses
3. Brace
6
Freon tank
9
Holder
12 Scales
Figure 2-18. Storage compartment, face view (ser . nos . L-1475-T
through L-1478-T) .
2-17
