PDFWAC 296-806-45514
Make sure point-of-operation devices are effective.
(1) You must make sure point-of-operation devices protect the operator from hazards as shown in Table 455-1, Point-of-Operation Devices.
(2) You must make sure the motor start button is protected against accidental contact.
Table 455-1
Point-of-Operation Devices
Type of device | Type of operator protection that must be provided: |
Presence-sensing device (part-revolution clutch press) | If the operator's hands or other body part are in the point of operation: |
1. Prevents initiating a press cycle (stroke); | |
or | |
2. Stops the press during the closing portion of the cycle (stroke) | |
Presence-sensing device (full-revolution clutch press) | Do not use for point-of-operation safeguarding |
Pull-back device | As the die closes: |
1. Withdraws the operator's hands if they are located in the point of operation; | |
or | |
2. Prevents the operator from reaching into the point of operation | |
Restraint (holdout) device | Prevents the operator from reaching into the point of operation at all times |
2-hand control device 2-hand trip device | Requires operators to use both hands to activate controls that are far enough away from the point of operation so the slide completes the closing portion of the cycle (stroke) or stops before they can reach into the point of operation |
Type A gate or movable barrier device | Encloses the point of operation: |
1. Before a press cycle (stroke) can be initiated; | |
and | |
2. Remains closed until slide motion has stopped | |
Type B gate or movable barrier device | Encloses the point of operation: |
1. Before a press cycle (stroke) can be initiated; | |
and | |
2. Remains closed until slide motion has stopped during the closing portion of the cycle (stroke) | |
Sweep device | Do not use for point-of-operation safeguarding |