TM 3-4230-209-10
5
CAUTION
When using the decontaminating apparatus at temperature below 32 F,
any liquid left in the piping, pump tank, or discharge may freeze and
damage the equipment. If operations are interrupted, flush and drain the
decontaminating apparatus.
Equipment failure. If the equipment fails (e.g., broken drive belts, engine
trouble, etc) during cold weather while liquid is being sprayed, drain the apparatus.
a. Open the gun assembly valves on the discharge hoses. Unreel the hoses from
the hose reels to drain as much liquid as possible out of the discharge hoses
and slurry nozzles.
b. Open the pump DRAIN valve and open VALVE NO. 4 PRIME to drain as much
liquid as possible out of the pump and prime-detergent tank.
c. Disconnect the suction hose from the tank unit assembly and pump unit assem-
bly. Open the tank drain valve and drain as much liquid as possible from the
tank. Drain the suction hose, blender hose, and water heater.
d. Notify organizational maintenance personnel to perform the necessary repairs.
6
CAUTION
Residual liquid in the piping, pump, and discharge hoses may freeze and
damage the equipment if the water's circulation is interrupted.
Spraying water. At temperatures below 0C ( + 32 F), spray water as follows:
a. Winterize the decontaminating apparatus (para 2-27).
b. Operate the engine and agitate the water that is in the tank unit through the
pump unit until ready to spray. Heat water to a satisfactory temperature above
freezing by using the water heater.
c. Start spraying and continue spraying without interruption until the tank unit is
empty. If water in the tank begins to freeze, use the water heater to heat the
water, unless tank is loaded with chemicals.
d. Drain the decontaminating apparatus.
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