How to adjust when two sides with different bending angle for NC press brake

During using WC67K series torsion bar Press brake, suddenly we find that the bending angles of both sides are not same all the time, means one side bend bigger than another side. What should we do then?
Firstly, we should know BEKE WC67K series CNC press brake is torsion bar synchronization structure. Torsion bar is a connection rod which is connected with two cylinders. One cylinder move, this rod will turn round at the same time, then it will drive the other cylinder move.
To ensure the both oil cylinders movements keeping at same level position, The controller directly make one side cylinder move up or down with a motor, then the connected rod turning and make the other cylinder move to the same position. This is the basic principle we solve this kind of problem. So when two sides angles are different, we should manual operate or enter manual page in controller to adjust one cylinder up or down a little, to make two oil cylinders at same level position.
When the both oil cylinders are asynchronous, means one side bending angle is bigger then the other side. We first need to determine which cylinder is at higher position. We can put two pieces metal plates on two sides of mold to bend and get the bending angles. the small angle means its accordingly cylinder is at higher position.
We usually adjust the synchronization of two oil cylinders through the right oil cylinder, because the right cylinder is directly connected to motor which is controlled by controller. We need only to adjust the movement of this cylinder up or down to achieve both cylinders’ synchronization.
For example the bending angle of right side is bigger, means the position of cylinder is higher than the other side. Y value is the distance from the top position move to the destination position, it means the Y value is a little smaller than the other side. So the next we should do is move this cylinder a little down.
Then when we get this point, we can disconnect the torsion rod ( picture x ), then enter to manual page of controller, input or press the button + / ++ to make the Y value lower, connect torsion rod again and bend at both sides again, if angles of two sides are still not same , then adjust as upon method again till you get perfect angles.