|
| |
TM 10-4930-247-13&P
4-18.
VALVED DRY BREAK COUPLING REPAIR.
This task consists of:
a. Removal
b. Disassembly
c. Cleaning
d. Inspection
e. Repair
f. Assembly
g. Installation
h. Adjustment
INITIAL SET-UP
Tools:
Bumper (1) (Item 1, App J)
General Mechanics Tool Kit (App B, Sect III, (Item 1)
Repair Kit (Item 5, App J)
Equipment Condition:
Self-locking Setscrew (Item 6, App J)
Component removed from fuel system (para 3-4a)
Preformed Packing (2) (Item 7, App J)
Material/Parts:
Ball Seal (Item 8, App J)
Silicone Compound (Item 3, App F)
Preformed Packing (Item 9, App J)
Cleaning Solvent (Item 1, App F)
Wiping Rag (Item 2, App F)
a.
Removal. Refer to figure 4-9.
NOTE
Ensure that all parts identified as mandatory replacement parts are discarded and
replaced with new components.
(1)
Set control handle (1) to CLOSE position.
(2)
Remove screw (2) and attached preformed packing (3) from coupling (10).
NOTE
To prevent loss of balls and aid assembly, place a suitable container under body
opening. Catch all balls as they fall from body.
(3)
Position coupling (10) so that opening for balls (4) is pointing down.
(4)
Rotate coupling (10) back and forth on fitting (9) until 41 balls (4) are removed.
(5)
Separate coupling (10) from fitting (9).
(6)
Remove preformed packing (5) from fitting (9).
(7)
Remove ball seal (6), preformed packing (7) and eight springs (8) from fitting (9).
4-30
|
