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TM 10-4930-248-13&P
4-10A.
REPLACE UNISEX COUPLING.
This task consists of'.
a. Removal
b. Installation
E41TIAL SET-UP:
Tools:
Materials/Parts
Required:
Tool Kit, General Mechanics
Packing, Preformed (Item 15, Appendix J)
(Item 1, Appendix B)
Packing, Preformed (Item 16, Appendix J)
Petrolatum (Item 6, Appendix F)
Wiping Rag (Item 2, Appendix F)
General Safety Requirements:
Equipment Condition:
CCR Nozzle removed from fuel system
WARNING
(Reference Applicable System TM)
•
Fuels are toxic and flammable. Do not get on person
or clothing. Do not use near open flame. Area
should be well ventilated.
•
Fuel is flammable. Do not smoke.
a. Removal.
WARNIN
Rubber gloves should be worn when handling fueling system components due to the
toxic effects of some fuel additives.
(1) Remove ball retaining screw (1) and preformed packing (2). Discard preformed packing (2).
(2)
Position a wiping rag under the coupling (3) with screw hole oriented toward wiping rag. Push in and rotate
unisex coupling (3) back and forth until all 41 balls (4) have collected in the wiping rag.
(3)
Pull unisex coupling (3) from inlet (5).
(4) Remove and discard preformed packing (6) from inlet (5).
(5) Remove and retain spring (7) from unisex coupling.
b. Installation.
NOTE
When inserting balls in unisex coupling ball race, use caution to avoid dropping loose
balls. Work over a wiping rag.
(1)
Lightly lubricate inlet preformed packing (6) with petrolatum and install in second (square) groove of inlet (5).
(2) Place spring (7) in unisex coupling.
4-12
Change
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