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OSHA Rule of the day

General requirements

  • A crew member who moves out of the operator’s view to a location where the crew member could be injured by movement of the equipment (or load) MUST inform the operator before going to that location. The operator must not move the equipment until that crew member informs the operator that he or she has relocated to a safe position.
  • Employees must never be under the boom or jib when pins (or similar devices) are being removed, unless it is required by site constraints and the A/D director has implemented procedures that minimize the risk of unintended movement and the duration and extent of exposure under the boom.
  • Component weights must be readily available for all components to be assembled.
  • All rigging must be done by a “qualified rigger.”
  • Pins may not be removed during disassembly when the pendants are in tension.
  • Booms supported only by cantilevering must not exceed manufacturer limitations or RPE limitations, as applicable.
  • Component selection and equipment configuration that affects the capacity or safe operation of the equipment must be in accordance with manufacturer requirements and limits or RPE requirements and limits, as applicable.Synthetic slings

• The employer must follow manufacturer procedures when using synthetic slings during assembly or disassembly rigging

(even when the employer has developed its own A/D procedure as an alternative to the manufacturer’s other procedures.)

• Synthetic slings must be protected from abrasive, sharp or acute edges, and configurations that might reduce the sling’s rated capacity.

Outriggers and stabilizers

When outriggers or stabilizers are used or are necessary in light of the load to be handled and the operating radius:

  • Outriggers and stabilizers must be fullyextended or, if permitted by manufacturer procedures, deployed as specified in the load chart.
  • Outriggers must be set to remove equipment weight from the wheels, except for locomotive cranes.
  • Outrigger floats, if used, must be attached to the outriggers; stabilizer floats, if used, must be attached to the stabilizers.
  • Each outrigger or stabilizer must be visible to the operator or to a signal person during extension and setting.
  • Outrigger and stabilizer blocking must be placed under the float/pad of the jack or, if there is no jack, under the outer bearing surface of the outrigger or stabilizer beam. Blocking must also be sufficient to sustain the loads and maintain stability and must be properly placed.Tower cranes

• Tower cranes are subject to additional requirements for erecting, climbing and dismantling, including a pre-erection inspection (29 CFR 1926.1435).

By: Raf Rangel


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