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TM 10-4930-241-13
4-22. BALL VALVE ASSEMBLY (4-INCH) REPAIR - cont.
(16)
Install male coupling half (13) on ball valve (7).
CAUTIONS
* To prevent premature failure of ball valve assembly, gaskets certified for arctic service must be
installed. If a new dust cap or female coupling half has been installed, remove and discard black
gaskets supplied with the new components and replace them with arctic service gaskets.
* Ensure gasket is fully seated in gasket seat of coupling/dust cap to prevent leaks in assembled
components.
(17)
Install gasket (12) in dust cap (11), then install dust cap on male coupling (13).
(18)
Connect chain (9) and split rings (8 and 10) to dust cap (11) and male coupling (13).
(19)
Install female coupling half (5) on ball valve (7).
(20)
Install gasket (6) in female coupling (5).
(21)
Install dust plug (4) on female coupling half (5).
(22)
Connect chain (2) and split rings (1 and 3) to dust plug (4) and female coupling (5).
4-34
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