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TM 9-2320-356-BD
Section III. FUEL PUMPS
6-7.
GENERAL
Tactical vehicles use electrical and mechanical fuel pumps. Fuel pumps can be
repaired with instructions provided in respective equipment TM's.
In a battlefield
environment, replacement of a fuel pump is often the most expedient means to solve
the problem.
Fuel pumps on most tactical vehicles are interchangeable with fuel
pumps on other vehicles.
The multifuel engine needs a small in-tank fuel pump to
supply fuel to the injection pump.
Without an in-tank pump, the multifuel engine
will not operate.
6-8.
IN-TANK FUEL PUMP INTERCHANGEABILITY
General Information:
In-tank fuel pumps on tactical vehicles can be interchanged with other vehicles.
The difference in the pumps normally is in the brackets used to locate the
e l e c t r i c a l u n i t.
The pump must be placed in the proper location for efficient fuel
pickup.
The electrical unit can normally be installed in the bracket for the
vehicle being repaired.
The electrical unit can be clamped using the existing clamps (for example, an
adjustable clamp from an air cleaner ducting system). Use a strip of rubber or a
rubber hose to aid in holding the pump in position.
The following vehicles have
interchangeable fuel pumps:
M35/M44A2 Series, 2-l/2-Ton Truck
M48/M60 Series Tank
M88 Recovery Vehicle
M109/Ml10 Self-propelled Howitzer
M578 Recovery Vehicle
M39A2 Series, 5-Ton Truck
6-9.
ENGINE FUEL PUMP INTERCHANGEABILITY
General Information:
Electric fuel pumps will not normally supply the fuel pressure required by the
injector system if the mechanical fuel pump fails.
However, operation in a
deqraded mode is possible by replacing the mechanical pump with an electric unit.
Mechanical pumps within the-same engine family are interchangeable. The heater
fuel pump can also be used to provide fuel to the engine.
a.
Most Cummins fuel pumps are interchangeable. Minor fuel line adjustments
might be necessary to attach lines to the pump.
b.
Detroit Diesel 3-53 thru 8V92TA fuel pumps are substitutable.
c.
Personnel heater fuel pumps may be substituted.
d.
ultifuel fuel pumps are interchangeable.
Internal adjustments will differ.
6-7
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