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Mobile Crane Load Charts

Step 1 31 - Mobile Cranes
  • Carrier – The portion of the crane located below the turntable bearing.
  • Operators Cab – A housing that covers the operator’s station.
  • Outrigger – An extendable supporting device used to level the crane and increase stability.
  • Outrigger Float or Outrigger Jack – The hydraulic cylinder on the outrigger beam which extends vertically to raise and lower the crane for leveling.
  • Counterweight – Weight used to supplement the weight of the crane in providing stability for lifting loads.
  • Boom – Telescopic or fixed arm that is used to move objects.
  • Boom Hoist – Rope drum and its drive, or another mechanism, for controlling the angle of a lattice boom crane.
  • Boom Section – Individual lattice structure which are pinned together to form the boom attachment. Crane lattice booms are usually in two basic sections, tip and base. Such booms may be lengthened by insertion of one or more additional extension sections.
  • Load – The total superimposed weight on the hoist load block or hook.
  • Load Block – The assembly of hook or shackle, swivel, bearing, sheaves, sprockets, pins and frame suspended by the hoisting rope or load chain.
  • Hoist – A mechanical unit that is used for lifting and lowering a load via a hook or lifting attachment.
  • Hoist Chain – The load-bearing chain in a hoist.