 |
Washington Administrative Code (Last Updated: November 23, 2016) |
 |
Title 296. Labor and Industries, Department of |
|
Chapter 296-96. Safety regulations and fees for all elevators, dumbwaiters, escalators and other conveyances. |
Section 296-96-14035. What construction requirements apply to hoistway guide rails?
Latest version.
- (1) There must be a minimum of two opposing guide rails extending to a point six inches beyond the full height of travel of the car when the counterweight buffer is fully compressed.(2) All rails must be attached by bolts, lag screws or other approved methods to a vertical supporting member which must not exceed 1/2 inch deflection with the application of a 250 pound horizontal thrust at any point.(3) Wood guide rails must be at least 1 1/2 inch by 1 1/2 inch vertical grain fir or equivalent and must not vary more than 3/16 inch in thickness on the sides which the brakes contact. All joints must be kept smooth and even.