PRESERVATION OF THE FUEL SYSTEM. - TM-55-4920-424-13-P0131

TM 55-4920-424-13&P

e. Purge the fuel system, as follows:

(1) Add clean fuel to fuel tank.

(2) Uncap flexible fuel supply line. Place open end of flexible line in a suitable waste fuel container.

(3) Connect battery.

(4) Push in MAIN POWER circuit breakers (see figure E-3).

(5) Move START-RUN-OFF switch to RUN.

(6) Move BOOST PUMP switch to ON. Boost pump will operate and fuel will flow out of line into container.

(7) Move BOOST PUMP switch to OFF when clean, bubble free fuel flows out of line.

(8) Move START-RUN-OFF switch to OFF.

(9) Pull MAIN POWER circuit breaker.

(10) Disconnect battery.

(11) Securely cap fuel supply line to maintain fuel system cleanliness.

2-7.

PRESERVATION OF THE FUEL SYSTEM.

2-8.

The fuel system must be preserved prior to storage or shipment, as follows:

a. Place a suitable container under fuel tank drain fitting.

b. Remove drain fitting and drain all fuel from fuel tank. Reinstall drain fitting.

c. Put one to two gallons of lubricating oil (item 8 App D) into fuel tank.

d. Remove fuel filter bowl, and pour fuel from bowl; reinstall bowl.

e. Disconnect tank-to-pump fuel supply line at tank. Place open end of line in a one-gallon-capacity container filled

with lubricating oil (item 8 App D).

f. Uncap APU fuel supply line and place open end in a suitable waste fuel container.

E-12 Change 2