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FILLING WATER TANK FROM HYDRANT OR PRESSURE SOURCE.
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TM-5-4210-224-14-P 250 6PM Mini-Pumper Firefighting Truck Model No.:CM-KFT-3 Manual
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OPERATION UNDER RAINY OR HUMID CONDITIONS.
TM 5-4210-224-14&P
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
Para.
Para
Operation in Mud ................ .................
Operation at High Altitudes ..................
Operation in Salt Water Areas...............
Operation in Dusty or Sandy
Operation in Snow ................................
Areas ................................ ...................
Operation Under Rainy or Humid
Operation in Extreme Heat....................
Conditions ..................... .......................
Operation in Intermediate Cold
Scope ........................... .......................
(to -25F.) ................................ ...........
2-27. SCOPE.
This section covers the necessary operating instructions, in addition to those previously covered, that are
necessary for the components of the Mini-Pumper Firefighting Truck to function properly under unusual conditions,
such as in extreme heat or cold and in dusty and sandy areas.
2-28. OPERATION IN INTERMEDIATE COLD (to -2 5F.)
CAUTION
Moisture accumulating in the pump gear case can damage the internal parts.
Do not allow water to spray over the body of the fire truck, as the compartment doors will freeze
shut.
When operating in an intermediate cold climate, take the necessary precautions to prevent the truck from freezing.
Immediately after each firefighting operation, drain the water from the fire pump and water tank. In addition to the
draining procedures indicated in paragraphs 2-24 and 2-25 open water tank fillvalve control handle (14, figure 2-1)
and tank-to-pump valve control handle (13) to allow water to drain from the fire pump piping. During the
firefighting operation, run the fire pump at least 20 minutes to warm up gear case and drive out moisture.
2-29. OPERATION IN EXTREME HEAT.
When operating in extreme heat, particular attention must be paid to the lubrication and cooling system of the fire
truck. Protect the fire truck from the direct rays of the sun as much as possible. The fire pump is not affected by
extreme heat.
2-30. OPERATION IN DUSTY OR SANDY AREAS.
When operating in dusty or sandy areas, keep all lubrication points clean and well lubricated. Lubricate sparingly,
but more frequently than under normal conditions. Wipe fittings thoroughly before applying grease. Clean all oily
or greasy surfaces. Service the engine air cleaner, breather and oil filter more frequently than under normal
conditions. Service the radiator, fuel tank, and fuel filter.
2-57

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