Full Product Manual

GrandPrix Two-Post Lifts 62 P/N 5900209 — Rev. D3 — Feb. 2020
Wire Rope Inspection and Maintenance
Your Lift’s Lifting Cables are made of Wire Rope, which means they are strands of steel twisted into a
helix with a diameter greater than 3/8 inch / 9.52 mm.
Your Lift’s Wire Rope should be inspected regularly:
• Lifting Cables should be replaced when there are visible signs of damage or extreme wear.
Do
not use the Lift if it has damaged or worn Lifting Cables.
• Lifting Cables should be maintained in a well-lubricated condition at all times.
Wire rope is fully protected when each wire strand is lubricated both internally and externally.
Excessive wear shortens the life of wire rope.
Use a wire-rope lubricant that penetrates to the core of the rope and provides long-term lubrication
between each individual strand, such as 90-WT gear oil or ALMASOL® Wire Rope Lubricant.
To make sure the inner layers of the rope remain well lubricated, lubrication should be carried out
at intervals not exceeding three months during operation.
• All Cable Sheaves and guide rollers in contact with the moving rope should be given regular visual
checks for surface wear and lubricated to make sure they run freely. This operation should be
carried out at appropriate intervals generally not exceeding three months during operation.
For all sheave axles, use standard wheel-bearing grease. For all Cable Sheaves and/or guide
rollers, use 90-WT gear oil or a similar heavy lubricant, applied by any method including
pump/spray dispensing, brush, hand, or swabbing.
• How often should you inspect?
Lifting Cables should be visually inspected at least once each day when in use, as suggested by
American Petroleum Institute’s Recommended Practice 54 guidelines.
Any Lifting Cables that have met the criteria for removal must be immediately replaced.
• When should you replace Lifting Cables due to broken wires?
Lifting Cables should be removed from service when you see six randomly distributed broken wires
within any one lay length or three broken wires in one strand within one lay length.
• Are there other reasons to replace your Lifting cables?
Yes:
• Corrosion that pits the wires and/or connectors.
• Evidence of kinking, crushing, cutting, bird-caging, or a popped core.
• Wear that exceeds 10% of the original diameter.
• Evidence of heat damage.
• How do you find broken wires?
a. Relax your rope to a stationary position and move the pick-up points off the sheaves. Clean the
surface of the rope with a cloth — a wire brush, if necessary — so you can see any breaks.
b. Flex the rope to expose any broken wires hidden in the valleys between the strands.
c. Visually check for any broken wires. One way to check for crown breaks is to run a cloth along
the rope to check for possible snags.
d. With an awl, probe between wires and strands and lift any wires that appear loose. Evidence of
internal broken wires may require a more extensive rope examination.