Corrected entry: It doesn't take 2 guys pushing buttons to make the press operate. OSHA establishes that a light beam be placed so that if anyone/thing tries to enter an unshielded area on a press it breaks the light beam and the press stops immediately, like an automatic E-stop. The press would never operate while someone is in the die pulling the part out so there would be no need for dual controls.
EMTurbo
8th Sep 2003
8 Mile (2002)
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Correction: You're not obligated to use a light curtain though. If the company didn't want to spend the money to install light curtains on old presses, then they do need the system with 2 buttons for each operator to cycle the press. (or a gate with a door switch on it). If you look at the scene, there isn't a light curtain or gate installed on the press, so both operators have to go to their pedestals out of reach of the pinch points and press all 4 buttons for the press to cycle.