TM 9-2330-398-10
Section III. PRINCIPLES OF OPERATION
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General ........................................................................................................................................... 1-11
Principles of Operation .................................................................................................................... 1-11
1-11. GENERAL.
The purpose of the M969A2 5000-gallon tank semitrailer is to provide the means for automotive refueling or bulk fuel
hauling and delivery. The M969A2 semitrailer can be loaded through the top or bottom fill opening.
1-12. PRINCIPLES OF OPERATION.
PUMP AND ENGINE ASSEMBLY
ENGINE. Provides power through flexible coupling to
the centrifugal pump (2). The diesel engine (1) is a 4-
cylinder, 4-cycle, valve-in-head, air-cooled engine with a
maximum rating of 27.5 horsepower, located on the curb
side of the semitrailer. The engine (1) is operated and
monitored by the control panel (3) located on the road
side of the semitrailer.
PUMP. The M969A2 semitrailer is equipped with a 4-
inch, self-priming, low-head, low-pressure centrifugal
pump (2). The centrifugal pump (2) provides a flow rate
for metered fuel (gasoline or diesel) delivery of up to 60
gpm through one or both fuel-dispensing nozzles.
1-11
