Wire Rope Selection - Allied Systems H6H Operating Manual

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Wire Rope Selection

Each winch model can have a variety of wire rope sizes
installed by the user. The maximum wire rope size is
shown on the nameplate. See Figure 2 for approved wire
rope sizes and drum capacities. When a larger diameter
wire rope is used, the length of wire rope installed on the
drum will be shorter. In some situations, the winch can
create a tension in the wire rope that is greater than the
strength of the wire rope. The user must be careful to
select a wire rope that has enough strength and length
for the job.
WARNING
During operation of the winch, the operator
must know or estimate the line pull and make
sure that the line pull is within the capacity of
the winch and the specifications of the wire
rope installed on the drum. A broken wire rope
under high tension can return suddenly in the
direction of the winch and cause equipment
damage, injury or death.
The wire rope may disengage from the ferrule
4
pocket if there is a load on the wire rope with
fewer than 3 complete wraps on the drum. This
will cause a loss of load and possible injury.
When spooling wire rope from the drum, it is
very difficult for the operator to know when
nearing the end of the wire rope. It is recom-
mended that the last 5 wraps of wire rope be
painted a contrasting color to alert the operator
that the end of the usable wire rope has been
reached.
Wire Rope Diameter
19mm (3/4 in.)
22mm (7/8 in.)
25mm (1.0 in.)*
Notes:
1. Loosely or unevenly spooled line will change capacities.
2. Use flexible wire rope with independent wire rope center.
3. Ferule size: 2.0 in dia, 2 1/4 in long.
* If your winch is equipped with the optional arch, the largest
wire rope diameter approved for use is 7/8 inch.
Figure 2 - Drum Line Capacities
Ferrule Size & Type
Light Ferrule 2 1/4" x 2.0" Dia.
Figure 3 - Ferrule Size and Type
Capacity (Drum: 10 in.)
126 m (413 ft.)
91 m (297 ft.)
70 m (230 ft.)