Published 5-3-2016, Control # 555-02 4-5
RT530E-2 OPERATOR’S MANUAL SET-UP AND INSTALLATION PROCEDURES
DEAD-END RIGGING/WEDGE SOCKETS
Wedge socket assemblies are popular rigging accessories
and have been successfully used for decades to terminate
wire ropes on mobile cranes. A wedge socket assembly is
easily installed and dismantled but it must be installed and
used correctly. It is essential to use only a wedge and socket
of the correct size for the rope fitted. Failure to do so may
result in the rope pulling through the fitting.
Since state and local laws may vary, alternate attachment
methods may be necessary depending upon work
conditions. If alternate methods are selected, the user is
responsible and should proceed in compliance with the
regulations in force. If there are any questions, contact your
local Grove Distributor or Manitowoc Crane Care.
Do not mix components from different manufacturers. The
selection, installation and use of a wedge socket assembly
must be in accordance with the requirements of the wedge
socket manufacturer and the wire rope manufacturer upon
whose wire rope the wedge socket assembly will be used.
Manitowoc Crane Group specifies the size, type, class and
line pulls for wire rope, predominately rotation resistant wire
rope, and rigging accessories such as overhaul balls and
hook blocks for use with each new crane that it
manufactures. Other wire ropes and rigging accessories are
available from various vendors. Different wire rope
manufacturers have differing requirements for the
construction, handling, cutting, seizing, installation,
termination, inspection and replacement of the wire ropes
they produce. Their advice should be sought for each
specific type of wire rope a crane user intends to install on a
mobile crane.
When assembly is complete, raise the boom to a working
position with a load suspended to firmly seat the wedge and
rope into the socket before the crane is used operationally.
When anchoring the socket to the boom, ensure the flat face
of the socket is in position, as shown, toward the boom
sections (Figure 4-4).
Installing Wedge And Socket
1. Inspect the wedge and socket. Remove any rough
edges and burrs.
2. The end of the wire rope should be seized using soft, or
annealed wire or strand. If the end of the rope is welded,
the welded end should be cut off. Do not weld on size
6X37 rope. This will allow the distortion of the rope
strands, caused by the bend around the wedge, to
adjust themselves at the end of the line. Refer to
SECTION 1 - INTRODUCTION in the Service Manual
for wire rope procedures.
3. Make sure the live-end (Figure 4-5) of the rope is directly
in line with the ears of the socket and the direction of pull
to which the rope will be subjected. If the rope is loaded
into the socket incorrectly, under a load the rope will
bend as it leaves the socket, and the edge of the socket
will wear into the rope causing damage to the rope and
eventual failure.
.
CAUTION
If the socket is not positioned with the flat face toward the
boom sections, structural damage will occur.
Dead
End
Dead
End
Live End is
Entering
Wrong Side
Live
End
20 x Cable Dia
Minimum
RIGHT
WRONG
FIGURE 4-5
Wedge Socket
Reference Only
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