Washington Administrative Code
Title 296 - Labor and Industries, Department of
Chapter 296-806 - Machine safety
Section 296-806-42062 - Guard screw conveyors
Current through Register Vol. 24-06, March 15, 2024
(1) You must enclose the rotating screw to prevent contact with the shear points where it passes the sides of the trough or casing.
(2) You must guard screw conveyors requiring an open housing by using one of the following:
(3) You must construct feed openings for shovel, front-end loader, or other manual or mechanical equipment so that the conveyor screw is covered by a grating. If the nature of the material is such that a grating cannot be used, then the exposed section of the conveyor must be guarded by a railing and warning signs.
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 04-14-028, § 296-806-42062, filed 6/29/04, effective 1/1/05.