Operation and use
Battery disconnect switch
In the ON position, the battery disconnect switch closes circuits to the starting
system and ignition switch. In the OFF position, it interrupts these circuits.
In the ON position, the ignition switch energizes the oil pressure and water
temperature gage circuits and removes the ground from the ignition circuit to
permit engine ignition. Battery disconnect switch must be in ON position to
make this switch operative. When moved to OFF, ignition switch stops the
engine by grounding the magneto, regardless of the position of battery
Safety bypass switch
When reset, the safety bypass switch causes an electrical bypass of the oil
pressure safety switch to allow normal starting.
Air cleaner restriction indicator
Indicates red when air cleaner is clogged, preventing free air passage. Requires
reset after air cleaner service.
Allows pump body to be filled with fluid during priming. Replace plug before
Suction gage valve
When open, the suction gage valve applies suction port pressure to suction gage.
Discharge pressure gage valve
When open, the discharge pressure gage valve applies discharge pressure to
discharge pressure gage.
3-way fuel source selector valve
This valve has three positions as follows:
OFF position shuts off fuel supply to engine.
TANK position opens tank-to-engine fuel supply line.
AUX position opens the line between the auxiliary fuel supply and engine.
Auxiliary fuel line connector
Provides connection for fuel line when engine fuel is supplied from auxiliary
source of supply.
Fuel tank level gage
Indicates level of fuel in fuel tank.
Fuel tank filler cap
Remove filler cap to fill fuel tank.
c. Starting Procedures.
a. Preparation for Starting.
(1) Push in throttle control (5, fig. 2-1) half way.
(1) Perform the necessary daily preventive
(2) Pull out choke control (8) all the way.
maintenance procedures (para 3-6).
(2) If the pump is being started for the first time,
or if it has been drained since its last use, remove the fill
Operation of this equipment presents a
plug (2, fig. 2-2) and fill the pump body with the fluid to
noise hazard to personnel in the area.
be pumped. Replace the fill plug.
The noise level exceeds the allowable
limits for unprotected personnel. Wear
ear muffs, or wear ear plugs fitted by a
Be sure the pump has fluid in it before
you attempt to start it. Starting the
(3) Turn battery disconnect switch (13) to ON.
pump when it is completely dry may
Turn ignition switch (14) to ON.
damage the shaft seal.
Unlatch and pull down the stone
shield to provide adequate air flow
Excessive cranking will cause the
through the radiator.
starting motor to overheat. If engine
(3) Remove side panels from the engine.
fails to start after 30 seconds of
cranking, release the starter button and
wait 2 minutes for the starting motor to
During operation, it may be necessary
cool before attempting to start the
to reinstall the engine side panels,
(4) Press to reset the safety bypass switch (15).
operation within the 180° to 200°F
Press and hold the starter pushbutton (12). The engine
should start after a few revolutions of the crankshaft. If
b. Fuel Supply.
it does not start within 30 seconds, release the
pushbutton to stop cranking.
(1) Check the fuel level on the fuel tank level
(5) When engine starts, release starter push
gage (1, fig. 2-3) mounted in the top of the tank. Refill if
button and watch the oil pressure gage (7). If normal
the gage reads low or empty unless auxiliary fuel supply
operating range is not achieved within 10 seconds, shut
is to be used.
down the engine.
(2) Move the fuel source selector valve (5, fig.
(6) Push in the choke control (8) as necessary
2-2) to TANK or AUX, whichever is applicable.