This press is a sheet metal punch. It has dual palm button on front of the machine. It can't go down unless both hands are on the buttons. It is still an accepted method of guarding against injury. The Whistler press was investigated to determine what caused the double trip caused an injury to the claimant.
Witness works closely with maintenance and knows what occurred with the machine.
He found there was a mechanical malfunction of the machine. The witness reviewed the foreman tie-in reports. The foreman tie-in log said the machine was locked out for investigation because of the accident. The log entry discussed the injury on the machine. The cause of the injury was a pin in the fly wheel which was catching and would allow the fly wheel to turn and this in turn caused the wheel to drop.