W26.60-1077-10
According to the position of the shift lever (driver's intention), the coupling control cylinder turns the hydraulic pressure and the movement of the hydraulic liquid into mechanical force and movement necessary on the clutch shaft.
The shifting gear control piston (6.1), through the shaft (6.2), turns (in the clockwise and counterclockwise direction) the clutch shaft in the gearbox to shift gears.