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TM 10-4320-351-14
Figure 5-3. Fuel Transfer Pump Inlet O-Ring Replacement
WARNING
Dry cleaning solvent, P-D-680, Type III, is potentially dangerous to personnel and
property. Eye and skin protection is required. Avoid repeated and prolonged skin
contact. Wash hands immediately after exposure. Do not use near open flame or
excessive heat. Use only in areas with good ventilation. Rubber gloves should be
worn when handling fueling system components due to the toxic effects of some
fuel additives and the dry cleaning solvent.
(5)
Clean interior of pump housing with dry cleaning solvent SD (P-D-680), if required.
a.
Installation.
(1)
Lightly lubricate O-ring (6) with petrolatum and install in inlet O-ring groove. Do not allow the O-ring
to twist or roll during installation.
(2)
Install inlet in pump.
(a)
Install the inlet (1) by aligning the six retaining screw holes and the jack bolt holes with corresponding holes
in the housing body (2). Tap inlet lightly around circumference with rubber mallet or heel of palm to seat
inlet in housing. If inlet does not install easily, install the l/4-28 x 1 ½/2 in. jack bolts in the inlet and adjust
bolts until inlet is parallel to impeller housing, then back out jack bolts alternately 1/2 turn at a time until
mounting screws (3) can be started.
(b)
Lubricate with anti-seize compound and loosely install the six socket head screws (3), lock washers (4) and
flat washers (5) in the inlet (1). Tighten in a crossing pattern, one or two turns at a time, to fully seat the
inlet in the housing (2). When all six screws are snug, tighten alternately until secure.
5-8
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