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![]() b. The centrifugal pump is directly coupled to the
engine with the pump impeller being mounted on
This technical manual covers only Pumping Assem-
the threaded end of the engine crankshaft. After
bly Model No. US6ACG, manufactured by Barnes
initial priming, the pump is self-priming. The pump
Manufacturing Company, Mansfield, Ohio. NO
has a 1 inch suction port and discharges through
known differences exist on the pumps Model
a pipe cross, with the two side ports being used for
US6ACG.
hose connection. The upper port is used for
priming. All ports are fitted with caps to prevent
a. Identification.
the entry of dirt when the hoses are disconnected.
(1) Army data plate. The army data plate is
c. The engine is an air-cooled, single-cylinder,
located on the engine end of the pump and engine
gasoline-driven, four-stroke-cycle type. It develops
mounting plate. It specifies the nomenclature,
2 horsepower at 3600 rpm. Speed is controlled
model, s e r i a l n u m b e r , f e d e r a l s t o c k n u m b e r ,
by
a
mechanical-flyball-type
governor
which
c o n t r a c t number, capacity, shipping dimensions,
controls the opening and closing of the carburetor
and weight.
throttle. The engine is splash lubricated.
(2) Engine plate. The engine plate is mounted
d. The suction and discharge hoses are provided
o n the engine blower housing. It indicates the
with quick-disconnect fittings for easy attachment
model, s e r i a l and specification n u m b e r s , b r i e f
to the related ports. The nozzles are also equipped
s e r v i c e and operating instructions, a b b r e v i a t e d
with quick-disconnect-type connectors. These
m a i n t e n a n c e instructions, and valve, point, and
connectors are clamp type, in which the connector
plug clearances. It also cites the name and address
i s positioned over t h e m a t i n g f i t t i n g a n d t h e
of the manufacturer.
clamping levers are then operated to make a leak-
proof connection.
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