The valve body (Item 2) and the casing (Item 17)
have corresponding location flats to prevent possible
movement of the valve body in service. The ridge in
the casing is not strong enough to prevent turning of
the valve body when tightening the QD nipple.
A special service tool APTP28 must be used oth-
erwise damage to the casing is possible.
Using the service tool APTP28, put into position to
prevent the valve body turning, unscrew the QD nip-
ple about 3/16". When the nipple is loose, remove
the service tool and use the partially unscrewed nip-
ple to help push the valve body out of the casing,
then proceed to unscrew and remove QD nipple.
APTP28
O-Ring #10
Item #8
Valve Body
Section
Item #8
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