TROUBLESHOOTING & TUTORIAL

When a hydraulic valve fails or malfunctions, most companies use a new component to restore the function of the hydraulic system, and the failed hydraulic valve becomes scrap. In fact, most parts of these hydraulic valves are still in good condition and can be partially repaired to restore function.

With the increasing progress of industrialization, the popularization of power press and other equipment has become more and more widespread, so various types of punching problems have also increased. Here is a brief explanation of the common mechanical failures and maintenance of power press.

The precise outfit of your control may vary. Operation of the control is mainly done over the touchscreen. A description of the functions and available touch controls is given in the next sections of this manual, aside of the description of the specific functions.

Today we will share the operation manual of E21 NC Controller for Press brake machine, It can help the operator to use the machien in a better and easy way. The operator shall read through this manual and know operation requirements before using this controller. E21 controller provides complete software control and the operator can pick it up as soon as possible.

This is a complete set of relief valves. The role of the relief valve is to control the amount of oil during the normal use of the bending machine, including its pressure, to control it. If this valve is stuck and the spool does not work properly in this valve, what happens to the bender? It cannot be raised, it cannot be lowered, and it cannot be pressurized, that is, the oil pump motor is rotating forward, but the slider of the bending machine has no movement. So if this happens, let ’s first look at the valve light. When you step on the footswitch, see if the valve light is on or not. If the valve light is already on, but the machine tool is not generating pressure, the slider is not up or down. The valve is likely stuck.

Sometimes when we use the hydraulic press brake with E21 controller, the machine ram can not come down even we start the machine and step the foot switch. Today we will share the solution with you how to fix this kind of problem. When we check the E21 inferface, we will see that Y is not equ