Manitowoc Published 10-09-2020, Control # 259-06 5-35
MLC80A-1/MLC90A-1/MLC100A-1/MLC100-1 SERVICE/MAINTENANCE MANUAL HOISTS
• All ropes—One outer wire broken at the point of contact
with the core and protruding or looping out of the rope
structure. Additional inspection is required.
• End attachments (see Figure 5-23
)—When more than
one broken wire appears at the attachment, replace the
rope or cut off the affected area and reattach the fitting.
Rope That Has Been Idle a Month or More
Wire rope must be given a complete inspection if it has been
idle for a month or more. The inspection must be performed
by a qualified inspector looking for the damage identified
under both daily and periodic comprehensive inspection.
NOTE: Wire rope may be purchased through Manitowoc
Crane Care Lattice Team.
Distributing Wire Rope Wear
Wire rope wear at the “critical wear points” can be reduced
and the life of the wire rope extended by moving the rope at
regular intervals so that different sections of the rope are
subjected to the wear points. This practice can also help
correct spooling problems and rope vibration.
To move the wire rope, cut off a piece of the rope at the worn
end and refasten. The piece should be long enough to move
the wire rope at least one full drum wrap.
If the wire rope is too short to allow cutting off a piece,
reverse the rope end for end and refasten it.
Item Description
1 Swagged Socket
2 Wedge Socket
3 Poured Zinc Socket
4 Hand-Spliced Socket
5 Button Socket
FIGURE 5-23
Item Description
1 Lay Length: distance in which one strand makes one
complete revolution around core
2Core
3Strand
4Wire
FIGURE 5-24
WARNING
Falling Load Hazard!
Replacement wire rope can break if it does not meet
Manitowoc Cranes specifications given in the following
publications supplied with your crane:
• Wire Rope Specifications Chart located in the
Capacity Chart Manual (for load lines)
• Boom or Jib Assembly drawings located in the
Operator Manual (for boom or luffing hoist)
• Mast Assembly drawing located in the Parts Manual