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TM 10-4320-311-14
(2)
Diesel engine lubrication system
(a)
The engine incorporates an internal sump and oil pump.
(b)
An oil dipstick is mounted on the engine and protrudes through the sound enclosure front panel
assembly.
(c)
When the oil requires changing, the oil can be drained from outside of the pump assembly by
removing a drain plug on the sound enclosure front panel assembly.
(3)
Diesel engine air intake system.
(a)
An air cleaner (2), with an operator replaceable filter element is mounted on the engine The air
cleaner is accessible through the access door in the sound enclosure cover.
(b)
Mounted horizontally on the air cleaner Is a air restriction indicator (3) that provides the operator with
positive indication of the need to change the filter element. A detailed description of this Indicator Is
provided in Chapter 2.
(4)
Diesel engine exhaust system
(a)
Engine exhaust Is ported out of the cylinder by an Internal exhaust valve.
(b)
The exhaust travels through an exhaust pipe (4) to the exhaust silencer (5) where the exhaust gases
are muffled and cooled.
(c)
Exhaust gases exit the silencer and exit the pump assembly through the spark arrestor that protrudes
through the sound enclosure rear panel assembly. The spark arrestor and the exiting exhaust gases
are hot and represent a possible burn hazard to operation and maintenance personnel.
(5) Diesel engine starting system
(a)
A recoil starter (6) is mounted to the engine and the recoil starter handle and rope protrudes through
the sound enclosure front panel assembly.
(b)
A decompression lever (7) is opened to ease the effort required during engine starting. After the first
compression stroke of the engine the lever automatically closes.
(c)
A rubber plug (8) in the valve cover allows the operator to place a small amount of oil directly into
the valve cover during cold weather starting.
(6)
Diesel engine attaching points and electrical grounding
(a)
The diesel engine provides mounting surfaces for the centrifugal pump and the engines output shaft
(9) Is keyed and coupled to the pump's impeller shaft.
(b)
In turn, the engine has foot mounts (10) which are attached to the engine base plate which is
attached to the pump frame with rubberized shock mounts.
(c)
To prevent the buildup and discharge of static electricity during the pumping operation the diesel
engine and the centrifugal pump are electrically grounded to the frame by a ground strap.
(d)
During operation of the pump assembly, the pump frame must be attached to a properly Installed
ground rod
b.
Centrifugal pump. The external portions of the centrifugal pump consists of a pump casing, volute, and a check
valve housing on the suction side of the pump casing. The casing provides attaching points to mount the centrifugal
pump to the diesel engine. Internally, the pump contains an impeller and shaft coupled to the diesel engine's output shaft
If the pump is. primed properly, connected to the appropriate pump accessories, connected to a source of a suitable
flammable liquid, and with the engine running at the required speed, then the pump will draw liquid from the source and
transfer that liquid to the desired fueling point or storage facility.
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