Current through Register Vol. 54, No. 50, December 14, 2024
Section 7.147 - Guide rail construction(a) Car and counterweight guide rails shall be constructed of steel.(b) Guide rails shall be securely fastened in accordance with the following:(1) Guide rails and their fastenings shall not deflect more than 1/4 inch under normal operation.(2) Joints of guide rails shall be well-fitted and strongly secured.(3) Guide rails and their joints and fastenings shall withstand the application of the safety when stopping the fully-loaded car.(c) Guide rails shall extend from the bottom of the hoistway to a height above the top landing sufficient to prevent the guide shoes from running off the guides when the car or counterweight is at the extreme upper position.