30
©
2019
Columbus McKinnon Industrial Products GmbH
Daily checks by the regulator
• Check the proper fastening of the Yale continuous winch to the suspension.
• Check the working of the UP and DOWN as well as the EMERGENCY STOP buttons.
• Check the working of the upper EMERGENCY limit switches: If the trigger is pressed manually during the upward movement of the
unit, the load should stop immediately.
Maintenance of the wire rope
ATTENTION: Always wear protection gloves for handling wire ropes.
Non-compliance with this specification will render the legal warranty or guarantee void of CMCO Industrial Products GmbH with
immediate effect.
Inspection of the wire rope
DIN 15020 sheet 2 “Principles Relating to Rope Drives; Supervision during Operation” and the relevant international and national
regulations of the country of use are definitive for the maintenance and inspection of wire ropes.
• Check the rope for outer defects, deformations, kinks, broken individual wires or strands, crushing, swelling, rust damage (e.g.
corrosion marks), strong overheating and heavy wear of the rope end connections (e.g. pressure sleeve).
• For safety reasons, a wire rope must be replaced if the wire breakages in the outer strands exceed a specified number. This is counted
over a reference length of rope 11 times or 30 times the rope diameter. The maximum number of broken strands allowed depends on
the NEM Group of the used hoisting unit and the structure of the wire rope.
• The wire rope must be replaced immediately, if a strand is completely broken, the rope is deformed, kinked, compressed or damaged
or worn in any other way!
• The wire rope must be discarded, if the rope diameter has reduced on longer sections by 15% or more compared with the nominal
dimension.
• A worn wire rope must be replaced by a wire rope with the same dimensions and quality.
Lubricating the wire rope
• Make sure that the load chain is lubricated over its entire length, including the part of the chain in the housing of the hoist.
• In case of a constant lifting path of the chain, the change-over area from lifting to lowering movement must be carefully checked.
Use simple multi-purpose oil or grease for lubrication. Molybdenum disulphide (MoS2) or PTFE containing
lubricants are not to be used.
• During lubrication, the wear condition of the wire rope must also be checked.
• Make sure that the wire rope is lubricated over its entire length, including the part of the rope on the rope drum.
• In case of a constant lifting path of the chain, the change-over area from lifting to lowering movement must be carefully checked.
Use simple multi-purpose oil or grease for lubrication. Molybdenum disulphide (MoS2) or PTFE containing
lubricants are not to be used.
• During lubrication, the wear condition of the wire rope must also be checked.
Replacement of the wire rope
To replace a wire rope, the electric rope winch must be connected to a power source.
The wire rope should only be replaced by an authorized specialist workshop.
NOTE: Replacement of a wire rope must be documented!
The wire rope must be fully unwound from the drum, so that the drum-side end can be detached from the drum. To do this, detach the
two mounting screws in the drum and take out and discard the two copper washers placed under them. Use new copper washers to
mount the new wire rope! The wire rope to be replaced can now be taken out of the drum.
The subsequent steps of placing the new wire rope are described under INSTALLATION
→
Wire rope installation.
Maintenance Load Hook
Check the load hook for deformation, damage, surface cracks, wear and signs of corrosion as required, but at least once a year. Actual
operating conditions may also dictate shorter inspection intervals. Hooks that are rejected during the check must be immediately
replaced with new ones. Welding on hooks, e.g. to compensate for wear is forbidden.
Hooks must be replaced when the mouth of the hook has opened more than 10% or when the nominal dimensions are reduced by 5%
as a result of wear.
