1. Strength of structural components (such as tilt rod, tilt cylinder, tilt pin, etc.). ) in the working device. ), leading to plastic deformation. Check whether the structural parts are deformed and replace the deformed parts.

2. The cable of the flexible shaft of the shovel head is broken. Check the cable of the flexible shaft of the shovel head and replace it with a new cable.

3. The valve controlling the shovel head at the front of the distributor is stuck. Clean the valve to make it work normally.

4. The main safety valve on the working valve is damaged. Replace the main safety valve with a new one.

5. The hydraulic oil becomes dirty. The entire hydraulic oil circuit needs to be cleaned.

6. The problem of the pilot system. Abnormal values of pilot pressure and overflow pressure lead to inspection of the pilot to eliminate faults and repair or replace damaged parts.

7. The walking motor and rotating motor parts are damaged. Check the motor to troubleshoot or replace damaged parts.

8. Parts of the port plate or oil pump are damaged. Check the port plate or oil pump to troubleshoot or replace damaged parts.

9. The handle bullet is stuck. Check the bullet in the handle, regrind or replace the bullet.

10. The limit block contacting the boom under the bucket is worn or falls off. Check the cylinder block for troubleshooting, or replace it with a new one. Million car purchase subsidy