Manitowoc Published 05-03-17, Control # 228-03 5-13
16000 SERVICE/MAINTENANCE MANUAL HOISTS
NOTE: For galvanized bridle strand wire rope pendants,
United States Steel states “Replacement criteria for
galvanized strand boom suspension pendants are
25 percent of the outer wires fractured, or 10
percent of the total numbers, whichever comes
first.”
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 the Daily and Periodic Comprehensive
Inspections.
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 different sections of 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 wire rope at the worn
end and refasten it. The piece cut off should be long enough
to move wire rope at least one full drum wrap.
If the wire rope is too short to allow cutting off a piece of it,
reverse the rope end for end and refasten it.
FIGURE 5-8
WARNING
Falling Load Hazard
Replace wire rope when more
than one broken wire appears
at the point marked by the
arrow.
Item Description
1 Swaged Socket
2 Wedge Socket
3 Poured Zink Socket
4 Hand-spliced Socket
5 Button Socket
M100654a-e
1
2
3
4
5
DANGER
Falling Load Hazard
Replacement wire rope can break if it does not meet the
Manitowoc 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 crane
Operator Manual (for boom or luffing hoist)
• Mast assembly drawing located in the Parts Manual
FIGURE 5-9
Item Description
1
Lay Length: distance in which one strand makes one
complete revolution around core.
2Core
3 Strand
4Wire
1
2
4
3
To Next Page
Loading...
