§ 29.223. Existing installations.

 (a)  Clearance. When the clearance at the sides and the ends of travel of the planer table, the work being machined, or its chucking is less than 24 inches at any point, means shall be provided to prevent hazardous contact.

 (b)  Projections revolving. Revolving set screws, couplings, clutches, keys, or other projections not encased by the housing of the machine, when exposed to hazardous contact, shall be guarded. The covering of set screws with leather or wood blocks is prohibited.

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