TM 5-4320-275-13 & P
c. Prime fuel system if engine is new or seldom-used.
(1) Turn engine cutoff switch to OFF position.
(2) Pull starting rope.
(3) Allow starting rope to retract.
(4) Pull starting rope again.
(5) Allow to retract.
d. Turn engine cutoff switch ON.
e. Pull starting rope sharply.
f. Allow to retract.
g. Repeat steps e. and f., if necessary, until engine starts. (Cold engines are harder to start.)
h. If engine does not start after several attempts, see TROUBLESHOOTING PROCEDURES in Chapter 3 of this
If the suction lift is less than 15 feet (4.57 m), pump priming is normally not necessary. If the
suction lift is greater than 15 feet (4.57 m), use a 15/16 inch wrench to remove pipe plug from
accumulator and pour 2 gallons (7.6 liters) of water into the accumulator to prime the pump.
Install the pipe plug with a 15/16 inch wrench.
The pump should prime within 2 minutes after the engine starts. If the pump does not prime, see TROUBLESHOOTING