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TM 10-4320-316-14
SECTION I. DESCRIPTION AND USE OF
OPERATOR'S CONTROLS AND INDICATORS
2-1. INTRODUCTION. The DED pump assembly is designed for operation in a wide range of climatic conditions.
Operators must be aware of any peculiarities or operational limitations for their specific installation. Before setting up
and operating this system, be sure that you have determined the type of terrain and climate in which you will use the unit
and that you have assembled and serviced the system to match the existing needs.
2-2. OPERATOR'S CONTROLS AND INDICATORS. For controls and indicators applicable to the DED pump
assembly, refer to the following descriptions and to Figure 2-1.
a. Cold Weather Plug (1). During DED pump assembly operation in colder weather, engine starting can be further
helped by removing the cold weather plug on the top of the engine rocker arm cover and adding 5 or 6 drops of engine
oil. This reduces the additional friction cased by colder weather and makes the engine easier to start.
b. Decompression Handle (2). Because of the high internal cylinder pressure inside a diesel engine, it can be
difficult to start manually since the operator must overcome this internal pressure to start the engine rotation. To relieve
this internal cylinder pressure for starting purposes, an engine decompression handle is furnished to vent the cylinder
pressure and allow for easier engine starting.
c. Diesel Engine Throttle Control (3). After the diesel engine has been started, the engine speed can be
controlled by setting the engine throttle control.
d. Engine Oil Dipstick (4). To provide a method of checking for the correct amount of oil in the diesel engine, the
engine is equipped with an engine oil dipstick. By removing this dipstick and checking the indicated oil level, proper
engine oil may be added as needed. Engine oil is added through the engine oil dipstick opening in the engine crankcase.
e. Fuel Cock (5). To control the flow of fuel from the fuel tank to the engine, a fuel cock is included to turn the fuel
flow off or on.
f. Fuel Gauge Pipe (6). The amount of fuel in the engine fuel tank is shown in a fuel gauge pipe located on the side
of the fuel tank.
g. Lube Oil Drain Plug (7). At certain intervals and conditions, the engine oil must be drained and replace with new
engine oil. To remove the existing oil from the engine, a lube oil drain plug is provided on the DED pump assembly skid.
h. Manual Recoil Starter (8). The diesel engine is started by use of the manual recoil starter located on the side of
the engine. After pulling the handle out firmly and quickly, the engine will start.
i. Pump Drain Cock (9). In the event that the DED pump assembly must be stored or will not be used for en
extended period of time, a pump drain plug on the DED pump assembly skid is provided to drain water from the pump
body to keep freezing water from damaging the pump.
2-2
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