the crane unsafe, the operator must secure the crane and
notify the crane crew supervisor.
The Operators Daily PM Report, NAVFAC Form
11260/4, is also used with the ODCL when performing
the crane prestart inspection. The ODCL is turned in to
the crane crew supervisor at the end of each day or shift
for reviewing and signing. The NAVFAC Form 11260/4
is turned in to dispatch. As outlined in the NAVFAC
P-307, the minimum requirement for retaining ODCLs
is those completed during the current month and during
the previous month of operation.
Wire Rope Inspection
Part of the ODCL inspection is the thorough
inspection of all wire rope before using a crane. All
running rope in continuous service must be visually
inspected for crushing, kinking, corrosion or other
damage, broken wires, and proper lubrication (fig.
Other areas to inspect are wire rope sockets, swage
fittings, swivels, pendants, and securing hardware for
wear. Hoist drum end fittings need only be disconnected
or disassembled when experience or visible indications
deem it necessary.
The exact time for replacement of wire rope cannot
be given because many variables are involved; however,
safety depends upon the use of good judgment in
evaluating wire rope.
The following conditions are reasons for wire rope
1. Running ropes. six or more broken wires
randomly distributed, broken or torn wires in one lay, or
three broken wires in one strand in one lay. Replace end
Figure 12-36.Common wire rope defects.