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 TM 5-1940-277-10
TM 1940-10/1
a.
Fuel Tank is located on the centerline of the boat between the battery compartments and slightly forward
of the engines. The tank is provided with a vent that vents fumes to the atmosphere and a filler cap for
filling the tank. The filler cap has a dipstick for determining the exact amount of fuel in the tank. The tank
is designed to prevent an explosion if the tank is penetrated by a bullet.
b.
Isolating Valve is located at the bottom of the tank and is used to isolate the fuel tank from both engines.
c.
Shutoff Valve is located near the top of the fuel tank and is used to isolate the engine from the fuel tank.
d.
Fuel Water Separator is located near the top of the fuel tank and is used to remove water and coarse
particles from the fuel.
e.
Fuel Tank Vent is located next to the filler cap on the tank and extends over to the port side of the boat.
f.
Feed and Return Lines are the nylon tubing that connect the engines to the fuel tank. The feed line
supplies fuel to the engine. The return line returns excess fuel back to the tank.
g.
Fuel Lift Pump is located on the right side of the engine near the rear mounting brackets. The fuel lift
pump supplies fuel to the injection pump during start-up and operation.
h.
Fuel Filters are the double bowl arrangement above the fuel lift pump. These filters remove particles
from the fuel that could clog the injection pump or the injectors.
i.
Injectors inject fuel into the engine cylinders.
j.
Filter/Reservoir is located on the left side of the engine near the intercooler and has a small screened
know on top.
k.
Thermostarter is located on the left side near the bottom of the air intake manifold. The thermostarter is
used to heat the incoming air when the engine is started at temperatures below 50F (10C). The
thermostarter operates by electrically igniting a small amount of fuel in the air intake manifold.
l.
Collector is located near the fuel lift pump and is a collecting point for excess fuel from the filter/reservoir
and leak-of from the injectors.
m.
Injection Pump is located on the right forward side of the engine. It delivers an accurately measured
quantity of diesel oil, under pressure, to the injector through which the fuel is injected into the engine
cylinder.
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