TM 5-1940-321-13&P
a. Scheduled Daily During Periods of Craft Use.
( 1 ) Check pressure of buoyancy tubes and keel (paragraph 5-7).
( 2 ) Check tightness of outboard engine mounting clamp screws (paragraph 5-8).
( 3 ) Check tightness of transom straps (paragraph 5-10).
b. Scheduled After Craft Use.
( 1 ) Clean craft; flush dirt and sand from under flooring (paragraph 5-11).
c.
Scheduled Monthly During Periods of Craft Use.
( 1 ) Clean craft; remove flooring; remove dirt and sand from under flooring
d. Scheduled Semiannually During Periods of Craft Use.
( 1 ) Perform pressure retention test (paragraph 5-19).
( 2 ) Clean, inspect, and lubricate intercommunicating valves (paragraph 5-13).
( 3 ) Clean and inspect keel valve (paragraph 5-14).
e. Scheduled Annually During Periods of Craft Use.
( 1 ) Paint transom, paddles, and thrustboard (paragraph 5-15).
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