R 408.12449 Clutch/brake air valve failure.

Rule 2449. Air-clutch controls shall be designed to prevent a significant increase in the normal stopping time due to a failure within the operating valve mechanism, and to inhibit further operation if such failure does occur. This requirement shall apply only to those clutch/brake air-valve controls manufactured and installed on or after August 31, 1971, but shall not apply to presses intended only for continuous, automatic feeding applications.