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TM 10-4320-348-14
(2)
Sound enclosure front panel assembly. This front panel combines with the sound enclosure cover, the
sound enclosure rear panel assembly, and the engine air intake baffle to provide noise reduction and direct
engine intake air to the air cleaner and flywheel fan. The front panel provides protection for internal
components, wiring and mounting surfaces for information plates, controls, indicators, external engine oil
crankcase drain, external centrifugal pump casing drain, and connection points for pump suction hoses and
external fuel supply. Controls and indicators sufficient to support operation of the pump unit under all
conditions are provided on the front panel assembly (or on the diesel engine itself, these are accessible
through the door in the sound enclosure cover). All controls and indicators are clearly labeled. Controls and
indicators are explained in detail in Chapter 2.
(3)
Sound enclosure rear panel assembly. This rear panel combines with the sound enclosure cover the sound
enclosure front panel assembly, and the engine air intake baffle to provide noise reduction and direct engine
intake air to the air cleaner and flywheel fan. The rear panel provides protection for internal components,
wiring and mounting surfaces for information plates, and connection points for pump discharge hoses and
external electrical power. Additionally, the rear panel provides a cutout through which the spark arrestor
protrudes.
(4)
Engine air intake baffle. This baffle combines with the enclosures to direct air to the air cleaner and the
flywheel fan. Additionally, during cold weather starting procedures, this baffle encloses a space that is
warmed by the engine intake heater.
(5)
Intervehicle power cable electrical plug connector. This electrical connector is used during pump unit
operation in cold weather. It allows the pump assembly to be connected to the 24 volt DC electrical systems
of Army vehicles. Pump assembly has two internal electric heaters that are used during cold weather
starting of the pump assembly. The intake air heater warms air coming into the enclosure and the engine
intake air. The engine oil is warmed by an immersion heater installed into the side of the engine facing the
sound enclosure rear panel assembly. Controls and indicators for the two heaters are mounted on the
sound enclosure front panel assembly. This electrical connector has an attached dust cover to prevent
damage and contamination when connector is not in use.
(6)
Intake air heater. This 400 watt finned heater runs on 24 volts DC supplied from the intervehicle power
cable electrical plug connector. The ’heater mounts on the pump frame.
(7)
Immersion heater. This 75 watt immersion heater runs on 24 volts DC supplied from the intervehicle power
cable electrical plug connector. The engine has accommodations for an oil dipstick to be mounted on either
side of the engine. This heater threads into the unused oil dipstick location on the engine crankcase facing
the sound enclosure rear panel assembly.
(8)
Pump frame. The pump frame provides mounting points for the sound enclosures, pump and motor
assembly, air intake heater, ground rod attachment, etc. It rigidly supports all components of the pump unit
and provides 4 folding handles to allow 4 soldiers to move the pump assembly as required.
(9)
Pump suction connection. The connection to the suction side of the centrifugal pump is made through a 1.5
inch nominal ID female quick disconnect. Installed in this fitting is an internal gasket. When the pump unit is
not in use, a male quick disconnect dust plug is installed to protect the centrifugal pump from contamination.
(10)
Pump discharge connection. The connection to the discharge side of the centrifugal pump is made through
a 1.5 inch nominal ID male quick disconnect. When the pump unit is not in use, a female quick disconnect
dust cap is installed to protect the centrifugal pump from contamination. During pumping unit set up, the
pump discharge connection is also used to prime the pump with the liquid to be pumped. Installed in this
female quick disconnect is an internal gasket.
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