TM 5-4320-275-13 & P
(2) Turn engine cutoff switch to OFF position.
(3) Pull starting rope sharply.
(4) Allow to retract.
(5) Repeat steps (3) and (4) above until all water is drained from pump bowl and accumulator.
(6) Replace and tighten drain plug.
2-11. OPERATION IN EXTREME HEAT
a. If possible, protect the pump assembly from direct rays of the sun.
b. Allow adequate space for ventilation. If the pump is operated in an enclosure, use a fan to circulate air.
c. Keep the engine shrouding and pump clean to provide proper heat transfer to the air.
d. Check that lubricants in the engine comply with LO 5-4320-275-12.
e. Although fluid flow can be stopped for short periods, avoid doing so in extreme heat for the fluid may boil in the
pump bowl.
2-12. OPERATION IN HIGH ALTITUDES
The operating efficiency of both engine and pump diminishes at higher altitudes. Make sure that the engine is operating
at peak efficiency, providing the highest possible pump output. Adjust in accordance with TM 5-2805-257-14.
2-13. OPERATION IN SANDY OR DUSTY AREAS
a. When the pump is operated under sandy or dusty conditions, service engine air cleaner frequently in accordance
with TM 5-2805-257-14.
b. While filling the fuel tank, take care to prevent sand and dust from entering the fuel system.
2-11
