The application discloses a process for improving the performance of a
excavator and relates to the technical field of excavators. The process comprises the following steps: step S01, starting the engine and making it run at full
throttle after preheating and performing digging, soil throwing, walking and lifting operations, detecting and recording the bucket digging force, bucket rod digging force, lifting force and traction force; and step S02, installing a hydraulic
system tester on the high-pressure pipeline of the
hydraulic pump of a new
excavator by using a bypass method, making the pump run at a rated speed, and observing and recording the flow readings of the front and rear pumps of the tester when the hydraulic
oil temperature is 50+ / -5 DEG C. The application is a process technology for adjusting the pressure of each working oil cylinder of the main control valve in the hydraulic
system of a new or old
excavator and the excellent matching of the pump and the engine, fully improves the fuel
utilization rate of the engine and the working efficiency and benefit of the whole
machine, saves energy and is economical, and can improve and repair the performance and quality of the new or old excavator, such as the digging, crushing, lifting moment and speed.