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 TM 55-1905-223-24-18-1
NOTE
Make sure that one washer is placed on each
side of hinge blade.
Insert cylindrical pin (4) in hinge pad.
d.
NOTE
Upon initial installation of a scuttle, new
gasket, or new dog the hatch should be
"chalk tested."
e.
Perform chalk test as follows:
(1) Clean the knife edge of the closure frame.
(2) Apply a chalk line completely around the knife edge of scuttle frame.
(3) Dog the scuttle.
( 4 ) If the scuttle is watertight, the gasket will show an unbroken chalk line
(5) If the line is broken, adjust the dogs and retest.
CAUTION
Dogs should not be adjusted to give more
than 1/8" compression. Excessive pressure
is harmful to the gasket.
f. Operate scuttle and check for smooth and positive dogging action.
2-714
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