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TM 10-4930-246-13&P
4-6A.
REPAIR TWO-INCH
NON-VALVED
SCREENED UNISEX COUPLING.
This task consists of:
a. Disassembly
b. Assembly
INITIAL
SET-UP
Tools:
Materials/Parts Required:
Tool Kit, General Mechanics (Appendix B, Section III,
Preformed packing (Appendix J, Item 19)
Item 1)
Petrolatum (Appendix F, Item 5)
Preformed packing (Appendix J, Item 20)
Rag (Appendix F, Item 4)
General Safety Requirements:
Equipment Condition:
Component removed from system
WARNING
in accordance with TM
10-4930-250-13&P,
•
Fuels are toxic and flammable. Do not get on person
para. 2-8.
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.
NOTE
Inspect the coupling components as they are disassembled. Repair is limited
to replacement of unserviceable components discovered during disassembly.
Removed preformed packings shall be replaced.
a. Disassembly and Inspection . (Refer to figure 4-3.1.)
1.
Remove ball retaining screw (1) and preformed packing (2).
2.
Hold unit over a suitable container with screw hole oriented toward container. Rotate 2-inch non-valved unisex
coupling (3) back and forth until all 41 balls (4) have collected in the container.
3.
Remove 2-inch non-valved unisex coupling (3) and preformed packing (5) from D-1 nozzle inlet adapter (6).
4.
Remove spring (7) from 2-inch non-valved unisex coupling (3).
5.
Remove dust cap (8) from 2-inch non-valved unisex coupling (3).
6.
Remove screen assembly (9) from 2-inch non-valved unisex coupling (3).
7.
If dust cap (8) or cable (10) is to be replaced, cut cable (10) to remove.
8.
Ring (11) attaching dust cap (8) to 2-inch non-valved unisex coupling (3) may be removed from the cable (10)
by rotating it through the split portion of the ring (11).
9.
Remove the bumper (12) only if it is to be replaced or the lugs (13 and/or 14) must be replaced.
Change
1
4-6.1
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