What exactly are the reasons for the excavator's sluggish movement and slow speed? We've found it for you!

1. Whether the data from the high and low pressure sensors are normal;

2. Whether the data of the electromagnetic proportional valve group is normal;

3. In the absence of alarm content and when all the above data are normal, it is often the case that the valve core of the multi-way valve does not switch properly, resulting in stuck action and slow speed.

If the valve core gets stuck, the following measures should be taken

1. Disassemble the valve core for inspection and clean it with diesel.

2. If there are no impurities, it is likely that the valve core itself is faulty and stuck, and it needs to be replaced.

Regarding the multi-way valve of the excavator

The multi-way valve, as an important component of the excavator's hydraulic system, serves to determine the oil supply routes and methods from the hydraulic pump to each hydraulic action element, as well as the flow distribution when multiple hydraulic action elements act simultaneously or in a compound manner. Next, we will provide a detailed explanation of the name, function and location of the multi-way valve core of Kobelco's 20-30 ton excavators, so that friends can promptly locate the valve core and solve similar problems when they encounter them.