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Currently, when the operator presses the palm buttons, the cylinder begings its stroke and when it "feels" resistance it builds up pressure to a setpoint (controlled by an adjustable screw in the pump) until the operator releases the buttons. The problem is, with different products, the pressure is sometimes too much or not enough. It is tedious/time consuming for a qualified tech to adjust the pressure screw on the pump each time we switch products. Is there a way of creating a 4 position switch so that an operator can choose from 4 different pressure settings? (Of course, I would like the ability to change these settings if new products come along). Has anyone seen a similar application?