A single Banner "Opto-Touch" Button must be actuated simultaneously with SPC Lever Control Valve. The SPC Control Valve is a Lever Control Valve that allows you to bring the ram down and stop at any point with left hand on Banner "Opto-Touch" Button and right hand on the lever control (Anti-Tie-Down Control). Ram will not return. Once all is aligned, place left hand on Banner "Opto-Touch" Button and push the lever down for advance to complete your part. The further you push the lever control down, the more pressure you will obtain. Ram will not return until lever is all the way up.