Hoist rope exchange

ALATAS’ SERVICEFIELD SERVICE / MANAGED CRANE CONTRACTS
LOCATION  EMEA / IRELAND
EQUIPMENT  MOBILE HARBOR CRANES
BRANDLIEBHERR / LHM 280

Introduction:

Alatas was commissioned to conduct a hoist wire rope exchange on an LHM280 crane in Ireland, supplying all necessary equipment for the task.

Background:

Routine maintenance involves changing hoist ropes to uphold the reliability and safety of crane hoist operations.

Job Scope:

  • Position the boom for maintenance.
  • Lower winches until limits engage, then lower further to ensure one turn is on the winch.
  • Secure hoist ropes on the roof using bulldog clamps and chain blocks.
  • Remove hoist ropes from the winch and store clamps inside the machine house.
  • Set up rope stands in front of the chassis and position two sets of ropes.
  • Ensure the rope reels from the bottom of the new hoist rope reel.
  • Remove rope sockets from the hook, one by one, and bind the rope to the opening.
  • Cut rope sockets from the old hoist rope and weld a chain link on the end.
  • Attach new and old hoist ropes with hammerlocks.
  • Lower hoist ropes over the back of the counterweights and attach them one by one to a suitable pulling vehicle, maintaining radio contact.
  • Secure the new hoist rope on the machine house roof with bulldog clamps and chain blocks once it reaches the winch.
  • Repeat the process three more times until all hoist ropes are at the winch.
  • Attach the new hoist ropes to their respective winches, ensuring all rope tails are equal for a consistent rope level.
  • Attach all clamps to the winch, and then attach all new hoist ropes to the hook.
  • Raise the boom, ensuring the correct seating of the hoist ropes on the winches.
  • Check the level of the hook once it is off the ground.
  • If the hook is not level, use a spirit level and a straight edge located on top of the rope anchors to record levels and necessary adjustments for each rope.
  • Adjust the ropes as necessary with the boom in the maintenance position based on measurements.
  • Raise the boom again and repeat the leveling process if the hook is still not level.
  • Test hoisting up and down to ensure proper functioning.
  • Remove all equipment from the site and clean the working area.
  • Conduct a final briefing with the client.
  • Complete timesheets.
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