How to adjust the hydraulic pump pressure of modern 225-7 excavator to suppress the whole vehicle?

There is a TVC valve on the hydraulic pump to control and adjust the flow of the pump, so that the output power of the engine is roughly balanced with the displacement of the pump. If the car is stuck, the displacement of the pump is greater than the output power of the engine. At this time, adjust the valve counterclockwise (loosen the outer lock nut and adjust the inner screw), and remember that it should not exceed 1 turn at most. If the car is still stuck after the 1 is adjusted, it is necessary to find a more professional person to disassemble and check the main pump. Remember, the front pump and the rear pump have a TVC valve respectively, and they should be adjusted together.