R 408.12769 Roll type glue spreaders.

Rule 2769. (1) The feed rolls on a roll type glue spreader shall be guarded at all nip points. The bottom of the guard at the feed side shall come to within 3/8 inch of a plane formed by bottom or contact face of the feed roll where it touches the stock. (2) A reversing bar or switch, or a kick plate may be used in addition to the nip guard. (3) The rolls shall be fully opened when they are being cleaned. (4) A long-handled brush or swab shall be used to clean them.