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 TM 5-1940-277-20
TM 1940-20/2
2.
Remove hose (1) from hose adapter (2).
Using pliers, unscrew hose adapter (2) from elbow (3).
3.
4.
Using pliers, unscrew elbow (3) and hex nut with threaded pipe (4) from scupper bracket (5).
Check elbow (3) for damage or internal obstruction.
5.
Unscrew plastic hex nut (4) from elbow (3).
6.
7.
Using two screwdrivers withdraw retainer (6) and ball valve (7) from drain opening in outside of boat hull.
Clean retainer (6) and ball valve (7). Check for damage or deterioration. Replace if necessary.
8.
Remove any dirt or trash from scupper body (8). Clean and check threads.
9.
10.
Reassemble ball valve (7) and retainer (6), then insert into scupper opening from outside hull.
From inside boat aline retainer (6) under scupper drain hole.
11.
12.
Coat underside of plastic hex nut (4) with silicone sealant.
Install plastic hex nut (4).
13.
Install elbow (3) and tighten until elbow (3) points toward center line of boat.
14.
Install hose adapter (2) on elbow (3).
15.
Install hose (1) on hose adapter (2).
16.
Install aft cockpit (refer to paragraph 3-27).
17.
3-55
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