Many owners often encounter the problem of holding back the excavator! Most of the owners reflect that they are Hitachi excavators, which are actually working. Today, I will explain to you how to solve the problem of the excavator holding up when the Hitachi excavator is working. I hope the following methods can eliminate the problem of your excavator always holding back the car during work.

　　 First, check whether the excavator's fuel oil circuit is malfunctioning. If your Hitachi excavator ZX200 has a brake failure during work. If it is confirmed that there is no problem with the fuel oil circuit, then mainly check whether the auxiliary control servo piston inside the main pump regulator is aging and draining oil. Relatively unchanged power will cause the excavator to hold back.

　　 It requires very strict power curve matching. The repair and disposal of Hitachi excavators: After the regulator is aging, the repair value and repair level are extremely low. The victory rate is extremely low, and there is generally no maintenance. The two regulator assemblies should be replaced and the vehicle can be debugged on site soon.

　　 If the power of the hydraulic pump of the excavator is greater than the power of the engine, the excavator will fail. Secondly, the excavator hydraulic pump itself also has a certain power.

　　 Reduce the power of hydraulic pump to 95‰ of engine power. Solution: debug the hydraulic pump.

　　 The above is about the cause analysis and solution of the problem of the excavator holding the car. I hope it can be helpful to everyone.