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TM 10-4930-250-13&P
Section II. DIRECT SUPPORTMAINTENANCE PROCEDURES
5.2 REPAIRTHREE-INCHVALVEDUNISEXCOUPLING.
(Referto figure5-1)
This task consists of:
a. Disassembly
b. Inspection
c. Assembly
INITIAL
SET-UP:
Tools:
Materials/Parts Required:
Screwdriver, Cross Tip, Size 2
Solvent, dry cleaning
(Appendix B, Section III, Item 2)
(Appendix F, Section II, Item 2)
Key, Socket Head Screw, 7/64 in.
Cloth, lint free (Appendix F, Section II, Item 3)
(Appendix B, Section III, Item 2)
Petrolatum (Appendix F, Section II, Item 5)
Key, Socket Head Screw, 9/64 in.
O-ring (Appendix 1, Item 10)
(Appendix B, Section III, Item 2)
O-ring (Appendix 1,Item 11)
Key, Socket Head Screw, 7/32 in.
Grit paper (Appendix F, Section II, Item 8)
(Appendix B, Section III, Item 2)
Bushing (Appendix 1,Item 12)
Punch(Drift Pin),
Bushing (Appendix I, Item 13)
(Appendix B, Section III, Item 2)
Seal (Appendix L Item 14)
Pick (or machinist's scribe)
(Appendix B, Section III, Item 2)
Chemical and Oil protective gloves,
(Appendix B, Section III, Item 2)
Goggles (Appendix B, Section III, Item 2)
General Safety Requirements:
Equipment Condition:
Three-inch valved unisex coupling removed from
WARNING
inlet (para. 4.8. 1)
Fuels are toxic and flammable.
Do not get on person
or clothing.
Do not use near open flame. Area
should be well ventilated.
Using dry cleaning solvents incorrectly can cause
injury or even death.
Fuel is flammable.
Do not smoke.
a. Disassembly
Rubber gloves should be worn when handling fueling system componcrets due to the toxic effetes of
some additives.
(1)
Unthread dust cap attaching cable (1) from split rings (2).
(2)
Place handle assembly (3) in closed position, rotate and remove dust cap (4) from coupling. then place handle
assembly (3) in open position.
(3)
Remove screws (5) and handle assembly (3).
5-2
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