hitachi ex120 hydraulic pump

hitachi ex120 hydraulic pump installation precautions： Pay attention to check the display value of the counter class Observe the display value of the pressure gauge of the hydraulic circuit, the vibration status and stability of the pressure switch light signal at any time, so as to find out whether the hydraulic circuit is functioning properly as soon as possible. Pay attention to observe the action of the machine (for the modified pump) Improper design of the hydraulic circuit or poor manufacturing of components are not easy to find in the initial use stage, so special attention should be paid to the action states that appear under various operating conditions. Pay attention to the adjustment in each valve Fully understand the use of pressure control valve, flow control valve and directional control valve, pay special attention to the adjustment range and limit, otherwise adjustment errors will not only damage the machine, but also pose a threat to safety.