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Subchapter 7. General Industry Safety Orders
Group 6. Power Transmission Equipment, Prime Movers, Machines and Machine Parts
Article 46. Gears, Friction Drives, Sprockets, and Chains

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§4075. Gears and Sprockets.

(a) All gears, sprockets and sprocket chain drives located 7 feet or less above the floor or working level shall be guarded.

(b) If band guards are used the guard shall extend inward beyond the root of the teeth and the spokes shall be guarded with a disk guard.

(c) Where employees pass under chain drives, the requirements of Section 3943(c) and (f) shall be met.

(d) Guards on overhead silent chain-drives shall not be less than one-quarter inch from the nearest moving chain part, except that on drives of over 20 inch centers the distance shall not be less than one-half inch.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Repealer and new section filed 10-25-74; effective thirtieth day thereafter (Register 74, No. 43).

2. Amendment filed 10-9-85; effective thirtieth day thereafter (Register 85, No. 44).

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