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Subchapter 7. General Industry Safety Orders
Group 8. Points of Operation and Other Hazardous Parts of Machinery
Article 64. Pulp, Paper and Paperboard Mills

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§4426. Corrugators.

(a) Recessed floor conveyor systems shall be designed and installed to minimize tripping hazards. Where a tripping hazard(s) exists, the hazard(s) shall be identified by painting it a distinctive color or otherwise be conspicuously marked.

(b) Rails for roll stands and other rail mounted devices shall be installed to comply with the following:

(1) The rails shall be flush with the floor; and

(2) A minimum 18-inch clearance shall be provided between the device(s) and fixed equipment or walls.

(c) Corrugating and pressure rolls shall be equipped with threading guides designed and installed to prevent contact with the operating feed nip.

(d) A minimum 4-inch clearance shall be maintained between heated drums, idler rolls and cross shafting on all preheaters and preconditioners.

(e) A minimum 4-inch nip clearance shall be maintained on the lower elevating conveyor belt rolls of single facer bridges.

(f) Slitter stations not in use shall be disconnected from the power source by positive means.

(g) The adhesive exhaust system shall be designed, installed and maintained to comply with the permissive exposure limits (PEL) contained in Article 107.

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


1. New section filed 9-15-86; effective thirtieth day thereafter (Register 86, No. 38).

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