Multiple Lift Rigging Procedures
No crane is permitted to be used for a multiple lift where such use is contrary to the manufacturer's specifications and limitations.
A multiple lift may be performed only if the criteria are met per 29 CFR 1926.753(e)(1).
Multiple-lift rigging assembly capacity, for the total assembly and for each individual attachment point, must:
- Be certified by the manufacturer or a qualified rigger.
- Be based on the manufacturer's specifications.
- Have a 5-to-1 safety factor for all components.
The total load must not exceed:
- The rated capacity of the hoisting equipment specified in the hoisting equipment load charts.
- The rigging capacity specified in the rigging rating chart.
The multiple lift rigging assembly must be rigged with members:
- Attached at their center of gravity and maintained reasonably level;
- Rigged from top down; and
- Rigged at least 7 feet (2.1 m) apart.
The members on the multiple lift rigging assembly must be set from the bottom up.
Controlled load lowering must be used whenever the load is over the connectors.
Knowledge Check Choose the best answer for the question.
2-6. The multiple lift rigging assembly must be rigged at least _____ apart.
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