820 Cranes and Derricks Safety I

Equipment Used to Deliver Material

It is common for material to be delivered to and unloaded on a construction site using a truck on which is mounted an articulating/knuckle-boom crane. Such equipment is covered by the standard when used in construction work.

When Equipment is Covered

Materials covered by the standard include:

• prefabricated components or building sections, such as roof trusses and wall panels; and
• structural steel members or components of a systems-engineered metal building.

When Equipment is Not Covered

Equipment is not covered by the standard when it delivers materials, regardless of the type, by placing them on the ground without arranging them for hoisting.

Equipment is not covered when it delivers materials by placing them onto a structure if all four of the following conditions are met:

1. the materials are sheet goods (such as sheet rock, plywood, or sheets of roofing shingles) or packaged goods (such as roofing shingles, bags of cement, or rolls of roofing felt);
2. the equipment uses a fork/cradle at the end of the boom to deliver the materials;
3. the equipment is not used to hold, support, or stabilize the material to facilitate a construction activity, such as holding material in place while it is attached to the structure; and
4. the equipment is equipped with a properly functioning automatic overload prevention device.

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