Listen, there is no immortal technique. Moreover, any equipment should work and if it fails, then this is a great way to set it up for better and more effective work. In addition, today there are a huge number of incorporations that will help you quickly cope with this. I highly recommend using jcb servicemaster diagnostic software
https://sites.google.com/view/jcb-servicemaster/home . With it, you can make the necessary diagnosis and repair. And also remember about timely and proper maintenance and follow the recommendations for operation.
