The adjustment of the stroke length of the slide is obtained by changing the angle of engagement between the eccentric shaft and the bush, which is also eccentric, on which pivots the connecting rod that transmits the motion to the slide, and changing, as a result, the vector sum of the two eccentricities.
The device is able to automate all phases of the operation, from the de-coupling of the eccentric bush of the shaft, to the final re-phasing of the cams.
The choice of the stroke to be used is by the operator panel that, at run time, displays in real time the progress of the procedure.