Ijin Marine Limited

Ijin Marine Limited

Professional Supplier of Machinery & Hardware

How to do crane pre inspection?

What should you check for before operating a crane?

  • Rope appearance - lubrication, kinks, cuts, breaks, corrosion, reduced diameter, broken strands of wires or other signs of wear or damage.
  • A rope drum - position of cable in groove tracking, means of anchoring and drum wear or damage.
  • Sheaves - alignment of ropes, guides, dead ends, wear in sheave groove.
  • Hooks - cracks, twisting, straightening, hook throat opening or other signs of wear or damage, bent safety latch and broken spring.
  • Slings - appropriate type of sling, legible and appropriate capacity ratings, holes, with no cuts, crushed webbing and other damages.
  • Lights - burned out, broken.
  • Mechanical parts and guards - loose, bent, broken, and missing.
  • Rails - broken, chipped, cracked.
  • Wheels - worn (showed by bumpy riding).
  • Bearings - loose, worn.
  • Brakes - shoe wear.
  • Bridge bumpers and a trolley end stop - loose, missing, improper placement.
  • Controllers and collector shoes or bars - worn, pitted, loose, broken, or faulty operation.
  • Control buttons - labeled to indicate their function, properly function, immediately releases without sticking.
  • A foot walk - condition of the boards, railings, and ladders.
  • Gears - lack of lubrication or foreign material in gear teeth (indicated by grinding or squealing).
  • A fire extinguisher must be in the crane cab.
  • Make sure that no one is on or around a crane before closing the main or emergency switch, even when starting on regular duty.
  • Before closing the main switch, make sure that all controllers are in the "off" position.
  • Inspect oil only after opening and locking out the main switch.
  • Make sure no overhead power lines are obstructing the crane operation.

What should you inspect a moving crane for?

Before lifting any load you should start the crane and inspect it when it is moving. Look for:

  • Smooth play out of wire rope to and from a drum.
  • Sheaves turning without binding or jerking as a rope passes over them.
  • Proper alignment where ropes enter sheaves.
  • Ropes not rubbing on rope sheave guards.
  • Rubbing, scraping, or clattering noises during operation.
  • Jerky movements.
  • Proper operation of controls and brakes.
  • Test the limit switch. Slowly raise the hook block with no load attached to the hook. If the switch is defective, make sure the block does not strike the cable.
  • In China,Ijin is waiting for you to provide quality product and impressing service.

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