TM55-2840-251-23
6-3 FUEL PUMP (Continued)
6-3-1 REMOVAL (Cont)
b. Remove lockwire, back off locknut (9),
unscrew and remove elbow (10). Remove and discard
preformed packing (12) and backup ring (11). Remove
locknut (9).
6-3-2 INSTALLATION
NOTE
Lubricate
preformed
packings
with
Lubricating Oil (E.2) or (E.71).
1. If new fuel pump is being installed: a. Install new
preformed packing (8) on adapter (7). Install adapter
into fuel outlet port. Torque to 110 to 120 inch-pounds.
Do not lockwire at this stage.
b. Install locknut (9), new backup ring (11) and
preformed packing (12) on elbow (10). Install elbow into
fuel inlet port until packing contacts mating face. Hold
nut stationary and turn elbow another one and one-half
turns. Align elbow in correct position and tighten
locknut.
NOTE
Do not torque or lockwire at this stage.
2. Install new gasket (6) over fuel pump mounting
studs.
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