TM 5-4320-300-14
1-14.SAFETY, CARE, AND HANDLING
a.
Before operation. Do not operate the unit in an enclosed area unless the exhaust is piped to the outside. The
exhaust contains carbon monoxide, a colorless, odorless, deadly poisonous gas. Do not smoke or use an open flame in
the vicinity when servicing batteries. Batteries generate hydrogen, a highly explosive gas. When filling the fuel tank,
always maintain a metal-to-metal contact between the filling apparatus and the fuel tank to prevent a static spark from
igniting the diesel oil fumes.
b.
During operation. Do not fill the fuel tank while the engine is operating, nor attempt to perform maintenance on
the pump unit while it is in operation.
c.
After operation. Exercise caution when removing the radiator cap while the engine is hot. Quick removal will
cause steam and hot coolant to escape, and may result in serious burns to personnel. When filling the fuel tank, always
maintain metal-to-metal contact between the filling apparatus and the fuel tank to prevent a static spark from igniting
diesel oil fumes.
Section III. TECHNICAL PRINCIPLES OF OPERATION
1-15.CENTRIFUGAL PUMP UNIT
The centrifugal pump mounts on a two-wheel trailer in line with a 70 horsepower diesel engine. Power from the engine is
transferred to the pump through a flexible coupling. The pump is self-priming (a check valve retains water in the pump
body), and is capable of variable speed operation. The pump has a capacity of 1500 gallons per minute at 60 foot head.
The pump is equipped with 6-inch suction and discharge ports with flanges. The continuous-duty, water-cooled diesel
engine uses a 12-volt electrical system, and is equipped with electric start, spin-on oil and fuel filters, a heavy-duty dry-
type air cleaner, and instrumentation.
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