4-8. FUEL PUMP (IN-TANK) REMOVAL AND REPLACEMENT.
Solvent, dry cleaning, type II (SD-2), Fed. Spec P-D-680
Sealer compound, type II, MIL-S-45180
Truck parked, engine off, handbrake set.
Do not permit smoking, sparks or open flame
within 50 feet of truck during fuel pump removal.
Fuel could explode, causing injury to personnel
and damage to equipment.
(1) On trucks M756A2, M275A1, and M275A2, fuel tank must be moved out
(2) Disconnect battery ground cable. Refer to para 7-58.
Take electrical connector (1) off fuel pump receptacle ( 2).
Using 3/8-inch wrench, unscrew heater line coupling nut (3) from elbow ( 4).
Some trucks may not have heater fuel line. If not, pipe
plug replaces elbow.
Using 3/4-inch wrench, unscrew feed line coupling nut (5) from fuel pump
tee fitting (6) .
GO TO FRAME 2