Rig from the bottom up. Select the correct rigging for the load below using the Master Rigger's Reference Card panels at the right. Answers can be found below.
With four quick lifts, raising the load only a few inches, a rigger can confirm:
Any time 2-hook pick is made, the crew needs to determine the weight carried by each hook, based on the center-of-gravity (CG) of the load. Review the schematic below and then evaluate the Master..
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A crew must load out a short bridge column which will be used in a creek bed to support one end of a light bridge deck. The crew rigged the precast column at two locations about 20 feet apart...
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When stabilizing a load after rigging and moving it to a specified location, the rigger should ensure it is well blocked before the rigging is removed.
As we begin to plan to move a load horizontally, using a set of industrial rollers, we should consider some options that can help ensure a success.
1. Identify the weight and..