9
Wire Rope Selection
Consult a reputable wire rope manufacturer or distributor for
assistance in selecting the appropriate type and size of wire rope
and, where necessary, a protective coating. Use a wire rope
which provides an adequate safety factor to handle the actual
working load and that meets all applicable industry, trade
association, federal, state and local regulations.
When considering wire rope requirements the actual working
load must include not only the static or dead load but also loads
resulting from acceleration, retardation and shock load.
Consideration must also be given to the size of the winch wire
rope drum, sheaves and method of reeving. Wire rope
construction must be 1/2 inch (13 mm) EIPS 6 X 19 IWRC with
a minimum breaking strength of 26,600 lb. (12,091 kg) right lay
to permit correct installation of wire rope anchor. Wire rope
construction providing a non-rotating or anti-spin characteristic
is recommended. Refer to Table 2 for recommended wire rope
sizes.
(Dwg. MHP1013)
Table 2: Wire Rope Size
Wire Rope
Anchor
Part No.
Minimum
Maximum
inch
mm
inch
mm
25539
3/8
10
5/8
16
Note: To maintain 5:1 safety factor ratio 1/2 inch (12 mm) wire
rope must be used.
Installing Wire Rope
Refer to Dwg. MHP0652.
1.
Cut wire rope to length and fuse end to prevent fraying of
strands in accordance with the wire rope manufacturer's
instructions.
2.
Feed the end of the wire rope into the wire rope anchor hole
in the drum and pull through approximately three feet (1
metre) of wire rope.
3.
Forming a large loop with the wire rope, insert the end back
into the top of the anchor hole.
4.
Place the wire rope wedge into the wire rope anchor pocket
in the drum. Install the wedge such that the wire rope will
wrap around the wedge as shown in Dwg. MHP0652.
5.
Pull the wire rope into position in the drum anchor pocket.
Ensure the wire rope is installed below the edge of the
drum flange diameter. Use of a copper drift or similar tool
may be required to fully insert wire rope and wedge into the
anchor pocket.
CAUTION
• Make sure the first wrap of wire rope is tight and lays flush
against the drum flange.
• Ensure the correct wire rope anchor is used.
• Install wire rope to come off the drum in an overwind
position. Improper installation of wire rope can result in
failure of the disc brake to hold load. Refer to Dwg.
MHP0652.
Safe Wire Rope Handling Procedures
1.
Always use gloves when handling wire rope.
2.
Never use wire rope which is frayed or kinked.
3.
Never use wire rope as a sling.
4.
Always ensure wire rope is correctly spooled and the first
layer is tight against the drum.
5.
Always follow wire rope manufacturer’s recommendations
on use and maintenance of wire rope.
Summary of Contents for FA2A
Page 8: ...7 ...
Page 38: ...37 WINCH CROSS SECTION DRAWING ...
Page 39: ...38 WINCH ASSEMBLY PARTS DRAWING ...
Page 41: ...40 MOTOR ASSEMBLY PARTS DRAWING ...
Page 47: ...46 CONTROL VALVE ASSEMBLY PARTS DRAWING ...
Page 49: ...48 REMOTE PENDANT AND CONTROL VALVE ASSEMBLY PARTS DRAWING ...
Page 53: ...52 EMERGENCY STOP AND OVERLOAD ASSEMBLY PARTS DRAWING ...
Page 55: ...54 REMOTE EMERGENCY STOP AND OVERLOAD ASSEMBLY PARTS DRAWING ...
