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MATERIALS HANDLING AND STORAGE

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Derricks - Handling the Load

Proper handling of the load is important. No derrick shall be loaded beyond the rated load. The hoist rope shall not be wrapped around the load. The load shall be attached to the hook by means of slings or other suitable devices.

The load shall be well secured and properly balanced in the sling or lifting device before it is lifted more than a few inches. Before hoisting:
  • The hoist rope shall not be kinked
  • Multiple part lines shall not be twisted around each other
  • The hook shall be brought over the load in such a manner as to prevent swinging.

During hoisting, care shall be taken to prevent sudden acceleration or deceleration of the moving load. The load must not contact any obstructions.

Each time the load approaches the rated load, the brakes must be tested by raising the load a few inches and then applying the brakes. Neither the load nor the boom shall be lowered below the point where less than two full wraps of rope remain on their respective drums. Dogs, pawls, or other positive holding mechanisms on the hoist shall be engaged.

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