R 408.12739 Tenoning machines and automatic edge banders.

Rule 2739. (1) A tenoning machine and an automatic edge bander shall have all cutting heads and saws covered by guards. The guards shall cover at least the unused part of the periphery of the cutting head. If a guard is constructed of sheet metal, the material used shall be not less than 14 gauge in thickness. If cast iron is used, it shall be not less than 3/16 inch in thickness. Other materials of equivalent strength may be used. If interlocked barriers are used at load and unload ends the enclosure guards specified in this subrule need not be used. It is not required that the above hoods retain a thrown or broken knife. (2) If an exhaust system is used on a tenoner or edge bander, the guard shall form part or all of the exhaust hood. It shall be constructed of material of a thickness not less than that specified in subrule (1) of this rule.