Section 7133 - Conveyances for Hoisting or Lowering Men in Inclined ShaftsNOTE: The chief hazards of hoisting and lowering men in inclined shafts are derailing the shaft conveyance, breaking the hoisting cable, falling rock or materials, and striking against fixed objects.
(a) Every shaft conveyance shall be provided with shaft guides or other satisfactory means to prevent derailment of the conveyance.(b) Every shaft conveyance shall be equipped with a device to stop the conveyance should the hoisting rope fail.(c) (19-45) Conveyances in shafts with a slope greater than 45 degrees from the horizontal shall be provided with bonnets constructed in accordance with the provisions of Section 7132(c).(d) To prevent employees from being caught between the moving shaft conveyance and the shaft walls, chute lips, timbers, or other obstructions, one (1) or more of the following precautions shall be taken:(1) At least 2 feet of overhead clearance shall be provided between men on the shaft conveyances in their riding position and the nearest shaft wall, chute lip, timber, or other obstruction. At least 1 foot of clearance shall be provided between men on the shaft conveyance in their riding position and the nearest obstruction at the side of the shaft conveyance.
(2) The shaft conveyance shall be enclosed in such manner that men riding thereon cannot come in contact with obstructions along the shaft.(3) The shaft conveyance shall be of such size and construction that men ride entirely inside the conveyance.(4) Use of alternate means which will afford equivalent protection is acceptable to the Division.Cal. Code Regs. Tit. 8, § 7133