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Washington Administrative Code (Last Updated: November 23, 2016) |
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Title 296. Labor and Industries, Department of |
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Chapter 296-96. Safety regulations and fees for all elevators, dumbwaiters, escalators and other conveyances. |
Section 296-96-13167. What requirements apply to elevator driving machines?
Latest version.
- (1) Elevator machines must be driven by approved-type units.(a) On direct drive or approved worm gear driven type, a mechanically actuated, electrically released brake must be installed on the driving unit.(b) On V belt driven types, a minimum of four belts, one-half inch minimum size, must be used to transmit power from the motor to the drive shaft and a mechanically activated, electrically released brake must be installed on the final drive shaft.(2) Wherever practical, elevator machines must be installed on the top side of the supporting structure.(3) All components of the driving mechanism and parts subject to stress involved in suspending the load or related equipment must be designed to withstand eight times the total weight to be suspended, including load, counterweight, car and cables.(4) Gears must be made of steel or equivalent material. Cast iron gears are prohibited.(5) A working platform, with railings complying with the applicable requirements adopted according to chapter 49.17 RCW, shall be provided to allow for safely working on equipment.(6) A light with a switch must be located near the elevator driving machine or the machinery space.(7) A means to lockout/tagout the elevator equipment must be located near the elevator driving machine or the machinery space.(8) The elevator machinery shall be protected from the weather.(9) All sheaves must be appropriately guarded per the requirements adopted according to chapter 49.17 RCW.(10) Changes based on the requirement found in subsections (5) through (9) of this section must be completed within two years of the effective date of these rules.