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Subchapter 7. General Industry Safety Orders
Group 8. Points of Operation and Other Hazardous Parts of Machinery
Article 69. Food and Tobacco Machinery

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§4539. Pomace Pumps.

(a) The auger or screw mechanism located at the bottom of the intake hopper of a wine pomace pump shall be either enclosed, guarded by location or guarded by the use of the following methods:

(1) A grille or grating with a maximum opening size of 6 inches by 6 inches securely installed over the top of the intake hopper, and at least 6 inches above the auger or screw mechanism,

(2) Electrical/mechanical interlock switches that will de-energize the pump when the grille or grating is not in a secured position above the pump's auger flight, and

(3) An effective emergency "stop system" installed adjacent to the safety grilles or grates at a location readily accessible to the operator.

(b) In lieu of the use of the methods in (a), hopper sides shall be provided that extend at least 36 inches above the auger flight and have rolled or smooth edges free of sharp projections.

(c) Shear pins on the pumps shall be maintained in accordance with the manufacturers' specifications.

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


1. New section filed 5-28-82; effective thirtieth day thereafter (Register 82, No. 22).

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