WIRE ROPE INSTALLATION AND MAINTENANCE
Folio 931-2
Refer to Table 1 for the 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. Refer to Figure 3 for the proper application
method. Each seizing should be one rope diameter long.
Table 1
Seizing Requirements
Anchoring Wire Rope to Drum
Refer to Figure 4.
Two types of wedges are used to anchor the wire rope to the
drum: wrap around and straight. Use the correct wedge part
number for the size of wire rope being used; refer to 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 as
shown in Figure 4.
2. Tighten wedge as follows:
STRAIGHT WEDGE — rap back end of wedge with a
brass drift pin and hammer.
WRAP-AROUND WEDGE — pull on live side of wire
rope.
Wire Rope Type Seizings Required
Preformed 1
Nonpreformed 7/8" (22 mm)
Diameter or Smaller
2
Nonpreformed 1" (26 mm)
Diameter or Larger
3
FIGURE 3
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" (26 mm) and Larger
View B Rope Diameter Smaller than 1" (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.
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.
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