Hydraulic accessories should be installed in strict accordance with the design requirements, and pay attention to neatness and appearance. In the case of meeting the design requirements, try to consider the convenience of use, maintenance and adjustment. For example, the pressure gauge should be installed in a place where the vibration is small and the oil distribution pan is easy to observe; the accumulator should be installed in a place where it is easy to refill the gas cylinder; The device should pay attention to water quality, water quantity, water temperature and cooling water freezing and other issues.