R 408.16225 Point of operation devices.

Rule 6225. (1) Either of the following point of operation devices shall protect an operator: (a) A device that prevents or stops, or both, the normal machine function if the operator's hands are within the point of operation. (b) A device that requires the application of both of the operator's hands to the machine operating controls until a point is reached in the cycle where the operator cannot remove a hand and place it within a pinch point or point of operation. Sweep guards are not acceptable as a device to protect the operator. (2) If a presence-sensing point of operation device is used, it shall protect the operator as provided in subrule (1)(a) of this rule and shall be interlocked into the control circuit to prevent or stop motion if the operator's hand or other part of his or her body is within the sensing field of the device during the closing cycle of the machine. The device shall not be used to initiate operation of the machine and shall be in compliance with all of the following provisions: (a) The device shall be constructed so that a failure within the device initiates a stopping action and prevents the initiation of a successive cycle until the failure is corrected. The failure shall be indicated by the system. (b) The distance from the sensing field to the point of operation shall be such so as to permit the mold or die to close or stop before the employee can reach into the point of operation with any body part. (c) Safety guards shall be used to protect an employee from all hazardous motion which is not protected by the presence-sensing device. The protection function of a presence-sensing point of operation device may be bypassed for the purposes of parts ejection, circuit checking, and feeding as the mold or die opens if the operator is not exposed to hazardous motion.