TM 10-4320-325-14
TO 34Y5-2-40-1
Section III. PRINCIPLES OF OPERATION
1.11.
FUNCTIONAL DESCRIPTION.
This section contains essential information in order for a maintenance technician to understand the
equipment. Description of components and assemblies which are maintained at Unit maintenance are
included when necessary to provide continuity.
1.12.
DIESEL-DRIVEN CENTRIFUGAL PUMP.
This is a self-contained, transportable, Diesel-Driven Centrifugal Pump for pumping water. It consists of a
self-priming centrifugal pump and a four-stroke, air-cooled diesel engine.
a. Centrifugal Pump. Includes aluminum casing with bronze impeller, integral check valve, 3/8-
inch drain port, counterclockwise rotation, 2-inch suction and discharge connections, and a 2-
inch priming port with dust plug.
b. Frame. Provides mounting points for the sound enclosures, pump and motor assembly, etc. It
rigidly supports all components of the pump assembly and provides four folding handles to
allow four soldiers to move the pump, as required.
c.
Diesel Engine. Includes four-stroke, vertical cylinder, air-cooled diesel, recoil starter, forced
lubrication by trochoid pump, direct fuel injection system, dry-type air cleaner with air cleaner
restriction indicator, and 3.8 horsepower (continuous) at 3600 RPM.
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