Bulling cargo shall be done with the bull line led directly
from the heel block. However, bulling may be done from the head of the
boom when the nature of the cargo and the surface over which it is
dragged are such that the load cannot be stalled, or when the winch
actually does not have sufficient strength, with the purchase used, to
overload the boom.
Snatch blocks shall be used to provide a fair lead for the bull
line to avoid unnecessary dragging of the bull line against coamings
Snatch blocks shall not be used with the point of the hook
resting on the flange of a beam, but shall be hung from padeyes,
straps, or beam clamps. Snatch blocks or straps shall not be made fast
to batten cleats or other insecure fittings.
Beam frame clamps shall be so secured as to prevent their
slipping, falling, or being pulled from their stationary attachment.
Falls led from cargo booms of vessels shall not be used to move
scows, lighters or railcars.
[62 FR 40141, July 25, 1997]