C-Series Book - Industrial Engine Service

GENERAL DESCRIPTION
The Model C-46, C-66, C-96,
C-101 and C-106 engines are
especially designed for oil well
pumping service, which normally
requires continuous operation with a
minimum of maintenance. The design
of the engine allows oil to be added
to the crankcase while the engine
is running, which further cuts loss of
operating time. Other manufactures of
engines require the engine to be stopped
while adding oil.
To meet continuous duty requirements,
the engines operate at low speeds, s,
lessening the wear of engine parts as well
as wear of driven pumping equipment. The
C-46, C-101 and C-106 have a maximum m
operating RPM of 800. The maximum m
operating RPM of the C-96 is 600 RPM.
The C-66 has maximum RPM of 700.
The single cylinder Models C-46, C-66,
C-96, C-101 and C-106 are valve-in-head ad
engines with exhaust and suction valve
seat inserts. With this type design the valve
mechanism is readily accessible and easily
serviced. The C-101 and C-106 engines
also have domed combustion chambers for
increased power.
The natural gas carburetors furnished
as standard equipment on these engines
are designed to operate on natural gas.
When the Arrow engines are operated on
gaseous fuels, it is very important to have
a volume tank connected to the engine by
the fuel line. This will provide suffi cient low
pressure volume of fuel to the engine. The
Arrow gas volume tank Model #HBD-2459
is suggested to be used for this purpose on
all Arrow single cylinder engines.
All bearings and moving parts are pressure
lubricated by oil, fed through the engines
from a positive displacement trochoidal
gear oil pump. The oil is fi ltered through a
full fl ow oil fi lter cartridge. An oil level sight
gauge indicates, at a glance, the oil level in
the crankcase.
Arrow engines are furnished with an Arrow
AF-603-RL ignition system. The standard
cooling system on the C-46, C-66, C-96,
C-101 and C-106 engines is the pressure
condensing system.
The pressurized-condensing type of
cooling system has an advantage of
maintaining a more uniform high operating
temperature in the engine. The higher
operating temperature of the engine helps
prevent contamination and sludging of the
engine. A combination water level sight
gauge and low water shut-down switch
shows, at a glance, the coolant level in
1-800-331-3662 ARROW ENGINE COMPANY
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