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TM 10-4930-250-13&P
Drycleaningsolvent,P-D-680,TypeIII, ispotentiallydangeroustopersonnelandproperty.Eyeand
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 ventila-
tion.
Rubber gloves should be worn when handling fueling system componenets due to the toxic effetcs of
some fuel additives and the dry cleaning solvent.
(5)
Make certain all components are clean and free from oil, grease, or dirt. Wash all parts with an approved dry
cleaning solvent and dry thoroughly with a clean, lint-free cloth.
c. Assembly
(1)
Place seal (26) into housing (13) with the flat surface inserted into the housing. Press into place with fingers.
(2)
Insert seal retainer (25). Work into place with fingers to seat seal (26) and clear groove for seal wire (24).
Avoid damage (scratching, gouging, etc.) to housing surfaces and seal retainer (25) during installation
of wire seal. Gouges or burrs may cause valve to malfunction.
(3)
Install open end of seal wire (24) into housing (13) at an angle and slide seal wire down into groove.
Do not interchange lugs between the coupling and the dust cap on the three-inch unisex coupling.
Dust cap lugs are made of a different material and will fracture if used in coupling. Refer to appendix
C for correct replacement parts.
(4)
Install screws (28) and lug (29).
(5)
Install screws (30) and lug (31)
(6)
Instal screws (32) and lug (33).
(7)
Instal screws (34) and lug (35).
(8)
Install bumper (27) onto housing (13) such that the tapered edge is facing toward the housing.
(9)
Insert valve ball (10) into housing (13) with shaft flats (37) on ball aligned with shaft holes in housing.
(10)
Lightly lubricate replacement O-ring (22) with petrolatum and install bushings (20) and (21) and O-ring (22) onto
attaching-cable-side shaft (19).
(11)
Place 0-ring (23) into groove in inside end of attaching-cable-side shaft (19) and insert attaching-cable-side shaft
(12) into housing (13) and ball (10).
NOTE
It is normally possible to install the valve ball without regard to left-right or front-rear position.
Occasionally, however, a ball will not be perfectly machined and the operating shafts will engage in
one position only. If this problem occurs when installing the shafts, it will be necessary to remove
the valve ball and install in a different position to allow the shafts to align properly for engagement
with the valve ball.
(12)
Install bushing (17) onto the handle-side shaft (12). Lightly lubricate O-ring (15) with petrolatum and install
bushing (16) and O-ring (15) onto handle-side shaft (12). Place O-ring (14) into inside groove in handle-side shaft
(12) and insert handle-side shaft (12) into housing (13) and valve ball (10). If handle-side shaft (12) will not mate
with valve ball (10), remove handle-side shaft (12), rotate valve ball (10) and insert handle-side shaft (12). Install
retaining screw (11) to secure handle-side shaft (12) to valve ball (10). Hold valve ball (10) with fingers while
tightening screw (11).
5-5
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