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(a) The travel of cranes or boom-type excavators shall be controlled so as to avoid collision with persons, material, and equipment. The cabs of units (of the revolving type) traveling under their own power shall be turned so as to provide the least obstruction to the operator's vision in the direction of travel, unless receiving signals from someone with an unobstructed view.
(b) In transit, the following additional precautions for mobile cranes shall be exercised:
(1) The boom shall be carried in line with the direction of motion and the superstructure shall be secured against rotation, except when negotiating turns when there is an operator in the cab, or when the boom is supported on a dolly.
(2) The empty hook, headache ball, or block shall be lashed or otherwise restrained so that it cannot swing freely.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment of subsection (a) filed 8-29-86; effective thirtieth day thereafter (Register 86, No. 39).
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