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(a) The lower pulley nip points shall be guarded.
(b) The upper pulley nip points shall be guarded by a plate or structural shape the thickness of the minimum width of the v-belt. This guard shall fit between the runs of the v-belt and extend from at least three inches from the pulley's outer rim to within 1/8-inch of and conforming to the arc of the perimeter of the pulley groove.
(c)(1) On sewing machines having the pulley outboard of the handwheel or no handwheel at all, a disc guard with a rolled edge shall be installed on the outside of the pulley. The diameter of the disc shall be at least one and one-half inches greater than the root diameter of the v-belt pulley.
(2) On sewing machines with the pulley inboard of the handwheel, the diameter of the handwheel shall be at least one and one-half inches greater than the root diameter of the pulley, or a disc guard as described in (1) above shall be installed on the outside of the handwheel.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. New section filed 8-18-77; effective thirtieth day thereafter (Register 77, No. 34).
2. Amendment filed 2-24-86; effective thirtieth day thereafter (Register 86, No. 9).