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Subchapter 7. General Industry Safety Orders
Group 8. Points of Operation and Other Hazardous Parts of Machinery
Article 55. Power Operated Presses
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§4200. Brakes.

(a) Brakes provided for stopping or holding a slide movement shall be inherently self-engaging by requiring power or force from an external source to cause disengagement. Brake capacity shall be sufficient to stop the motion of the slide quickly and capable of holding the slide and its attachments at any point in its travel.

(b) Brake System Monitoring. When required by Section 4193(m) of this section, the brake monitor shall meet the following requirements:

(1) Be so constructed as to automatically prevent the activation of a successive stroke if the stopping time or braking distance deteriorates to a point where the safety distance being utilized does not meet the requirements set forth in Section 4208(c)(4) or (g)(3). The brake monitor used with the Type B gate, movable barrier device, or presence sensing device shall be installed in a manner to detect slide top-stop overrun beyond the normal limit reasonably established by the employer.

(2) Be installed on a press in such a manner that it indicates when the performance of the braking system has deteriorated to the extent described in Subsection (b)(1) of this section; and

(3) Be constructed and installed in a manner to monitor brake system performance on each stroke.

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


1. Amendment filed 7-17-75; effective thirtieth day thereafter (Register 75, No. 29).

2. Amendment filed 10-31-85; effective thirtieth day thereafter (Register 85, No. 44).

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