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(a) Counterweights shall be guided to prevent horizontal movement. Guide rails, where used, shall conform to the requirements of Section 3085.11. [1502.3a]
(b) A car counterweight on drum machines shall not be of sufficient weight to cause slackening of any car hoisting rope during acceleration or retardation of the car. [1502.3b]
(c) Types of Counterweight Construction [1502.3c]
(1) One-piece solid or laminated steel counterweights may be used.
(2) The counterweight sections, if sections are used, whether carried in a frame or not, shall be fastened together by at least two tie rods which shall pass through all weight sections. Tie rods shall be provided with lock nuts (double nutted) and cotter pins at each end.
EXCEPTION to subsection 3085.13(c): Tie rods are not required were other means are provided to retain weight sections in place if they become broken.
(Title 24, Part 7, Section 7-3085.13)
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Editorial correction of subsection (c) Exception (Register 95, No. 34).