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821 Cranes and Derricks Safety II
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Miscellaneous Requirements

  • Load hooks (including latched and unlatched types), ball assemblies, and load blocks must be of sufficient weight to overhaul the line from the highest hook position for boom or boom and jib lengths and the number of parts of the line in use.
  • Hook and ball assemblies, and load blocks, must be marked with their rated capacity and weight.
  • Hooks must be equipped with latches, except where a qualified person has determined that it is safer to hoist and place the load without latches (or with the latches removed/tied-back), and routes for the loads are pre-planned to ensure that no employee is required to work in the fall zone except for employees necessary for the hooking or unhooking of the load.
  • Posted warnings required by this standard, as well as those originally supplied with the equipment by the manufacturer, must be maintained in legible condition.
  • An accessible fire extinguisher must be on the equipment.

Equipment Modifications

This section applies to modifications that affect the capacity or safe operation of the equipment. Its provisions safeguard against unsafe equipment modifications and provide that the modifications are reflected in the equipment's instructions and specifications so that the modified equipment can be used safely.

Knowledge Check Choose the best answer for the question.

6-3. Posted warnings required by this standard as well as those originally supplied with the equipment by the manufacturer must be maintained in _____.