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 TM 5-1940-277-20
TM 1940-20/2
Using two screwdrivers withdraw retainer (2) and ball valve (3) from scupper opening in outside of boat hull (4).
3.
Clean ball valve (3) and retainer (2). Check for damage and wear. Replace if necessary.
4.
Remove dirt or debris from scupper body (5).
5.
Reassemble ball valve (3) and retainer (2), then insert into scupper opening (4) from outside hull.
6.
From inside boat aline retainer (2) under scupper drain hole.
7.
NOTE
Do not overtighten plastic fittings.
Install threaded scupper fitting (1) by turning clockwise.
8.
3-53
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