5
Inspection and Maintenance Procedures (continued)
Blocks and Wire Rope (continued)
5. Make sure the wire rope is free of kinks, distortions and broken wires.
Titanhoistsaretobeusedwith1/4"diameter7x19SmallDiameterSpecialtyCordasdenedby
ASTM standard A1023. For additional wire rope options see addendum A.
Consult hoist drawings to determine the rope size for a particular machine.
The correct size rope must be used.
6. Replace wire ropes as necessary using the following procedure:
a. Move the load to a location where it can be secured using other rigging e.g. to another batten
or to the building structure.
b. Rotate the drum so that the cable termination clips are visible.
c. Secure the load and remove the damaged wire rope.
d. Reeve the end of the new rope through the loft blocks and to the Titan.
e. Reeve the rope through the Titan head block being careful to stay below the sheave spacers.
f. Wrap the wire rope around the drum enough times to match the number of standing wraps
on the other lines of the hoist. Note that a minimum of three wraps must be maintained on the
drum when the machine is at the lowest limit of travel.
g. Make sure the rope lays properly into the grooves on the drum. Insert rope between drum and
rope clip, leaving 0.50" to 0.75" exposed past the clip.
h. Tighten the clip by tightening each bolt to a minimum torque value of 20 in-lb.
i. Prior to terminating the lift lines, inspect the reeving and check the following:
- Wire ropes must lie smoothly in the grooves of the drum.
- Double check that the wire ropes are reeved properly through the blocks.
-Whilepullingwireropetight,checktheeetangleonthedrum.SeeFigure1.
j. Cut the lines to length and terminate at the batten.
- Install a trim chain, turnbuckle, or other rated load leveling device on each lift line connection.
- Use terminating hardware that is properly rated for the load.
Follow hardware manufacturers' instructions carefully, e.g. use inspection gages for swaged sleeves.
- Swaged sleeves are recommended for most installations. If wire rope clips are used,
annual maintenance must include checking the clip nuts with a torque wrench.
7. Inspect any wire rope clips that may be used on the system and use a torque wrench to make sure
the nuts are tightened according to the manufacturer's recommendations.
8. Visually inspect swaged (Nicopress or similar) terminations to look for signs of damage or overstress.
At least 1/16" of the dead end of the wire rope should be protruding from the swaging sleeve.
9. Inspect all wire rope thimbles for deformation or other damage.
10. Inspect all other components used to attach the loads to the Titan lift lines.
Do not use wire ropes of
dierent dimensional or
structural characteristics.
Disconnect the power before
working on the machinery.
!WARNING
!WARNING
