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TM 10-4320-351-14
Section II. EQUIPMENT DESCRIPTION
1.8 CHARACTERISTICS, CAPABILITIES AND FEATURES. (Refer to figure 1-1.)
The Pumping Assembly is a modular, soldier-portable pumping system. It can pump fifty-five gallons per minute to each
of four nozzles 100 feet apart. The system will operate properly from 120°F (48.9°C) to -250F (-31.7°C). It will pump and
run the engine on JP-4, JP-5 or JP-8 jet fuel.
The pumping assembly consists of the pump-engine module (1), an optional acoustic cover (2) and the accessory module
(3). The pump-engine module houses a self-priming pump that provides a flow of 225 gpm at 3400 rpm. The prime
mover is a removable engine that connects to the pump by a flexible coupling. The acoustic cover fits over the engine
and reduces engine noise to an acceptable level. Inlet and outlet points feature valved unisex dry-break couplings.
Valved unisex couplings can be connected or disconnected only when the valves are closed. This allows components to
be disconnected without fuel spills. When connected (with valves open) the unisex couplings are locked together. They
cannot be disconnected by accident.
The accessory module houses a 28 VDC battery for starting the engine and a control box for single point operator control.
The module also includes storage space for the starter and control cables (which are connected to the pump-engine
module during operation). The detachable engine air filter and the starter rope are also stored in this module.
The engine is a two cylinder, air cooled diesel with direct fuel injection. Cooling air is provided by the flywheel fan; air
circulation is controlled by shrouds that conduct the air over the block. The engine is normally started by an electric
starter. A notched pulley is provided for manual (rope) starting if required. A manually operated compression release
relieves engine compression force during a manual start. The manual start feature allows the engine to be started and
run without the accessory module.
1.9 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS.
The Pumping Assembly, illustrated in figure 1-1, consists of the Pump-Engine module, the Accessory module and
interconnecting cables.
1.9.1 Pump-Engine Module. (Refer to figure 1-2.)
The Pump-Engine module (1) consists of:
a.
A removable engine module (2) that slides in or out on plastic glides. Adjustable-force latches (3) secure the
engine module to the pump-engine module.
b.
A muffler (4) with a replaceable insulating cover.
c.
An exhaust line (5) with a replaceable insulating cover. An over-center clamp (6) connects the exhaust line to the
engine exhaust manifold.
d.
A shaft-driven fuel transfer pump (7) with a positive displacement rotary vane priming pump mounted internally on
the same shaft as the main impeller.
e.
A three-way inlet manifold (8) with each leg terminated by a two-inch, valved unisex coupling (9). The inlet
manifold is coupled directly to the inlet of the fuel transfer pump.
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