Hong Kong Regulations

MERCHANT SHIPPING (INSTRUCTIONS TO SURVEYORS) (PASSENGER SHIPS) REGULATIONS - REGULATION 34

Hand gear for watertight doors

The mechanism required for closing sliding watertight doors by hand from above
the bulkhead deck shall be expeditious in its action and sufficiently powerful
to be capable of closing the door under unfavourable circumstances. The
operating gear shall be accessible in all cases. It should, if possible,
consist of a crank handle or a wheel and handle, and be permanently attached
to the shafting so as to be always ready for use. If this cannot be done, the
handle or wheel must be stowed immediately alongside the working position.
There shall be an index at the operating position showing whether the door is
open or closed. The lead of shafting to the door should be as direct and free
from complications as possible. All screws, rods and other apparatus for
raising and lowering watertight doors must be provided with proper
lubrication, and guarded where necessary.