Suitable for Komatsu wheel loader motor solenoid valve UC1026026416

Working mode control (proportional solenoid valve control) is the control of the special working mode of the excavator, including various modes such as leveling, loading, etc. It is the instruction of the excavator computer to select the control switch according to the mode, and control the various functions of the solenoid valve on the excavator (such as boom priority, rotary priority, etc.) to control the function valve on the main control valve to achieve the effect of mode control. The coordination of the excavator is adapted to various special working modes. Here only briefly talk about the proportional solenoid valve, to know why the proportional solenoid valve is needed, we first understand that the hydraulic servo control has a certain delay, and the electronic control is very fast to make up for the design defects of the regulator.
Give an example of how proportional electromagnetism works. For example, when the excavator suddenly encounters a high load (for example, when it suddenly digs a boulder at the beginning of digging silt), the regulator does not have time to control the rapid reduction of the hydraulic pump flow rate, which may cause the excavator to stall. When the engine speed sensor senses that the engine speed is lower than the specified speed of the throttle knob, the computer immediately controls the proportional solenoid valve to open using the pilot pressure to quickly reduce the flow of the hydraulic pump to ensure that the engine will not stall.
Simply determine whether the proportional solenoid valve is burned when doing the overflow action with iron tools close to the solenoid valve to see if there is a magnetic force, if the solenoid valve is burned, the emergency treatment can be the solenoid valve spool first closed. Pay attention to check whether the proportional solenoid valve plug is loose, sometimes loose plug or poor line contact will appear hydraulic pump flow is large and small, resulting in vehicle action hydraulic jitter, especially the lifting arm is more serious.