Bending machine oil circuit failure
Flow valve can be opened to clean (usually the main valve spool hole damping hole things stuck, the phenomenon of more than 80% of the causes of failure caused by impurities in the oil).
But if there is no pressure, the general situation is the main system overflow valve stuck, will be overflowed, if there is no pressure, the general situation is the main system overflow valve stuck, will overflow
2, bending machine knife can not rise when the machine pressure gauge pressure is how much pressure (the general pressure gauge on the right side of the machine board), if the pressure but relatively low can not return, the lower chamber pressure increase (generally fold
First look at the foot up when the hydraulic valve is the same with the electrical requirements, if not the same, so that electrical inspection circuit, if normal, into the second step;
