SET-UP AND INSTALLATION 777 OPERATOR’S MANUAL
4-64 Published 10-01-12, Control # 044-05
Seizing and Cutting Wire Rope
Apply tight seizings of annealed wire to the ends of all wire
rope. If not done, the rope wires and strands may slacken.
This action will result in overloading of some strands and
underloading of others. Bird caging and breakage of the wire
rope can occur.
Before cutting wire rope, apply seizings on both sides of the
point where the cut will be made. Then cut the wire rope with
a torch, rope cutter, or abrasive cut-off wheel.
See Figure 4-41 for:
• Number of seizings to be applied to the ends of wire
rope and to both sides of the point where a cut will be
made.
• Proper application method. Each seizing should be one
rope diameter long.
Anchoring Wire Rope to Drum
See Figure 4-42 for following procedure.
Use the correct wedge part number for the size of wire rope
being used; see the parts drawing for the boom hoist drums
or for the load drum shaft to obtain the correct part number.
1. Assemble wire rope and wedge to drum socket.
2. Tighten wedge, rapping back of wedge with a brass drift
pin and hammer.
FIGURE 4-41
Place free end of seizing wire in valley between two stands.
Then wind seizing wire over free end as shown. Finally, twist
and pull two ends of seizing wire together until seizing is tight.
View A
A925
Rope Diameter 1 in (26 mm) and Larger
View B Rope Diameter Smaller than 1 in (26 mm)
Wind seizing wire around wire rope as shown. Then twist two
ends of seizing wire together at center of seizing. Alternately
twist and pull ends until seizing is tight.
Wire Rope Type
Seizings
Required
Preformed 1
Non-preformed 3
WARNING!
Falling Load Hazard!
Wire rope can be pulled out of drum if following steps are
not taken.
• Install straight wedge so corrugated side is against
wire rope.
• Install wedge so end of wire rope extends past end of
wedge, but not out of drum socket.
• Make sure seizing is not under wedge. Remove
seizing if it interferes with assembly.
FIGURE 4-42
Hole in
Drum Flange
Straight Wedge
Inside Drum
Straight Wedge
Outside Drum
Don’t Allow End of
Wire Rope to Extend
Out of Socket Opening
Seizing
Seizing
Wire
Rope
Wire
Rope
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