TM 5-4320-21 8-15
OPERATING
INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF EQUIPMENT
f. Install g-rounding rod and attach groundin
6. General
cable to rod and to pump frame.
The pump unit is export boxed, processed and
g. Start the pump in accordance with proce-
packaged according to level A. Prior to op-
dure in paragraph 12 and conduct the follow-
erating the pump, a careful inspection should be
ing break-in procedures.
made to make sure that the condition of the unit
(1) Operate one hour at 1000 rpm.
has not changed during shipment.
(2) Operate one-half hour at 1500 rpm.
7. Inspection and Installation
(3) Operate one-half hour at 2000 rpm.
a. Check all bolts and nuts for tightness.
(4) Unit should now be broken in for reg-
b. Inspect assembled pump for damaged and
ular duty.
broken parts.
h. Locate the pump as close as possible to
c. Check engine crankcase oil level, Add oil
fuel supply source.
if necessary.
i. The pump should be level when intalled
d. Fill fuel tank with gasoline if necessary.
with the stand support secured in the down
e. Actuate hand primer lever about 20 to 30
position.
strokes or until it moves easily,
Section II. CONTROLS AND INSTRUMENTS
the carburetor. Pulling the choke out
8. General
reduces the proportion of air in the
This section decribes, locates, illustrates, and
fuel-air mixture; pushing it fully in
furnishes the operator or crew sufficient infor-
provides a balanced fuel-air mixture
mation about the various controls and instru-
for normal operation.
ments for the proper operation of the pump as-
sembly. The operator should be thoroughly
b. Ignition switch (fig. 4).
familiar with the location and function of every
(1) Location. The ignition switch (4) is
control and instrument before operating the
located on the engine front end panel
pump.
(6).
9. Engine Controls
(2) Purpose. The ignition switch controls
the ignition circuit. When in the ON
a. Choke control (fig. 4).
position it permits a high-tension cur-
(1) Location. The choke control (5) is
rent to be transmitted from the mag-
located on the engine front end panel
neto to the spark plugs. When in the
(6).
OFF position it shorts out the magneto
(2) Purpose. The choke provides a means
coil and stops the engine.
of reducing the amount of air entering