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(a) All persons not engaged in the actual raising or lowering of portable metal spars shall stay clear of these operations.
(b) The manufacturer's written instructions on the proper method of raising, lowering, and tightening guylines for each particular model of portable metal spar shall be followed.
(c) A competent person shall direct each raising and lowering of each portable metal spar.
(d) Where guylines are required in raising and lowering, great care shall be used to prevent fouling of or excess tension in the line.
(e) A stable base shall be provided under outriggers or leveling pads in soft ground.
(f) During movement of the portable metal spar, the spar shall be lowered or adequately supported so that the stability of the machine is not impaired. Adequate brakes or an equally effective means for holding the machine on any grade over which it may operate or travel shall be provided and used.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment of subsection (b) filed 2-6-85; effective thirtieth day thereafter (Register 85, No. 6).