Crane Stability Guidelines

9 December 2014

Preparation of Crane Stability - Safety Guidelines

  • Ground must be suitably compacted and leveled before crane set-up can begin – Underground construction or services must be stopped during the use of a crane to avoid collapse of ground during the project.
  • Outriggers must be extended to the suggested positions stated in the manufacturer’s guidelines for the weight being lifted.
  • Outrigger jacks must be used to lift the wheels clear off the ground during crane use
  • Correct support material must be placed under the outrigger jacks to stop them from sinking into the ground during lifting. The size of the support is related to the weight the crane will be lifting. Refer to manufacturer’s guidelines to ensure you use the correct size and avoid tipping or buckling.
  • Crane Supervisors and Operators must monitor ground conditions during the assembly of the crane. They must take note of any deterioration from over use or bad weather. – If ground condition is doubted, the boom reach must be minimised and the counterweight slewed in the direction of the outriggers in turn for two minutes to activate the actual lift.

Your crane should remain grounded at all times during lifts to avoid surrounding damage or injury.

Take a look at our Crane Maintenance Checklist.

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