WAC 296-56-60151   Guide rails.  A minimum of two car guide rails shall be provided. They shall:

     (1) Extend at least six inches beyond the maximum travel of the car with buffers compressed.

     (2) Be securely fastened to a vertical supporting member for the full length of elevator travel.

     (3) Be not less than one and one-half inch by one and one-half inch vertical grain fir or equivalent, one-quarter inch by two inch by two inch angle iron or equivalent.

     (4) Not vary more than three-sixteenths inch thickness on brake surfaces for wood guide rails.

     (5) Be secured to resist more than one-half inch total deflection on car safety application and resist a two hundred fifty pound horizontal thrust.



[Statutory Authority: RCW 49.17.040 and 49.17.050. 86-03-064 (Order 86-02), § 296-56-60151, filed 1/17/86; 85-01-022 (Order 84-24), § 296-56-60151, filed 12/11/84.]