Figure 2–7. Engine stopping instructions.
unit may be done in a variety of ways to meet
different situations in the field. This paragraph
covers some common operational procedures for
the tank and pump unit in the field.
Note. All aircraft fuel must be dispensed through a
filter/separator unit.
Warning: Be sure proper grounding proce-
dures have been followed prior to performing
any of the following operations; use only high
octane fuel for aircraft.
b. Dispersion from Truck Tanks Through
Reels.
(1) Lower tailgate and ground the unit; at-
tach one end of the ground wire to the aircraft
or vehicle to be fueled.
(2) Attach nozzles and pull out dispensing
hoses to desired length; use both hoses if the
operator has an assistant. Attach nozzle bonding
TM 5-4930-227-14
wires (fig. 1-3 ) to aircraft or vehicle before open-
ing filler caps and inserting nozzles.
(3) Insert nozzles in vehicle or equipment
fuel tanks carefully, but firmly, to form a bond;
observe safe fueling rates stenciled near fuel
tanks carefully, but firmly, to form a bond; ob-
serve safe fueling rates stenciled near fuel tanks.
Caution: When dispensing fuel, attend
the nozzles constantly; do not wedge open or
block the control lever.
(4) Open a tank discharge valve and start
pump. Opening a discharge valve with full tanks
should prime the pump.
(5) Be sure that fuel to be dispensed to an
aircraft is the same grade as that stenciled near
the aircraft filler caps; note tank capacities and
ask the pilot or flight engineer for estimate of
quantities needed, to avoid spillage.
Note. Do not leave nozzles unattended during re-
fueling.
Caution: Replace filler cap securely be-
fore removing the nozzle bonding wire.
Note. Recap, wind and secure nozzle bonding wire
around nozzles when through dispensing.
(6) Open second discharge valve just before
first tank is emptied, and close first discharge
valve when the tank is empty.
(7) Stop pump when operation is com-
pleted; drain hoses if shutting down for longer
than overnight; rewind hoses, rewind ground
wire and remove nozzles and stow.
(8) Refill tanks at the end of the day’s op-
eration to reduce condensation during overnight
storage.
2-12. Operation in Extreme Cold
a. General. In extreme cold weather it may be
necessary to reduce the volume of cooling air flow
ing through the engine. This may be accomplished
by obstructing the air intake at the flywheel.
Exercise care not to cause engine overheating.
b. Fuel System. Keep the fuel tank full to re-
duce condensation of moisture inside the tank.
Clean the fuel filter bowl more frequently. Keep
the fuel tank cap free of ice and snow.
c. Ignition System. Before starting, remove all
accumulated snow and ice from the spark plug,
ignition cable and magneto.
Warning: Do not touch metal parts with
bare hands in extremely cold weather.
2-13
