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(a) Screw cover type extractors shall be equipped with a metal cover of at least No. 20 gage or its equivalent which shall cover the entire opening to the outer shell and shall be kept in its closed position when the extractor is in motion.
(b) The cover for the revolving container shall be held securely in place by a locknut on the spindle or the container shall revolve in the direction that will tend to tighten the spindle nuts.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment filed 4-25-86; effective thirtieth day thereafter (Register 86, No. 17).