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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 296-78. Safety standards for sawmills and woodworking operations. |
Section 296-78-70505. Shake machinery.
Latest version.
- (1) Shake splitters.(a) A positive deenergizing device shall be provided within ready reach of each shake splitter operator.(b) Each shake splitter shall be provided with an adjustable stroke limiter to eliminate the splitting blade from striking the table.(c) All splitters shall have a maximum clearance of four inches, from the splitting edge to the table surface, when the splitter is in the extended position.(d) All splitter tables shall have a friction surface to reduce kick out of the material being split.(e) Shake splitters shall not be operated at a speed that would cause chunks to be thrown in such a manner as to create a hazard.(f) The use of foot pedal (treadle) mechanisms shall be provided with protection to prevent unintended operation from falling or moving objects or by accidental stepping onto the pedal.(i) The pedal shall have a nonslip surface.(ii) The pedal return spring shall be of the compression type, operating on a rod or guided within a hole or tube, or designed to prevent interleaving of spring coils in event of breakage.(iii) If pedal counterweights are provided, the path of the travel of the weight shall be enclosed.(2) Shake saw guards.(a) Every shake band saw shall be equipped with a saw guard on both sides of the blade down to the top side of the guide.(b) The outside saw guard shall extend a minimum of three and one-half inches below the bottom edge of the saw guide.(c) The maximum opening between the saw guide and table rolls shall be fifteen inches.(3) Shake saw band wheel guards.(a) The band wheels on all shake band saws shall be completely encased or guarded on both sides. The guards shall be constructed of not less than No. 14 U.S. gauge metal or material equal in strength.(b) The metal doors, on such guards, shall have a wood liner of a minimum thickness of one-half inch.(4) Shake saw band wheel speeds and maintenance.(a) No band wheel shall be run at a peripheral speed in excess of that recommended by the manufacturer.(b) Each band wheel shall be carefully inspected at least once a month by management.Any band wheel in which a crack is found in the rim or in a spoke shall be immediately discontinued from service until properly repaired.(c) Each band saw frame shall be provided with a tension indicator.