Brand Model: Yuken YUKEN A37FR01BK32 performance: automatic material: stainless steel, cast iron Working temperature: room temperature, high temperature nominal diameter: 6-2400 (mm) Applicable pressure: low, medium, high temperature: room temperature, the temperature range of application: oil products, steam types: piston, variable pump custom processing: No Valve Co., Ltd. Shanghai Building a complete product, please consult YUKEN: A series variable piston A10, A16, A22, A37, A45, A56, A70, A90 , A145, PV series, PV2 series, hydraulic fault diagnosis: hydraulic oil in the course of the action of mechanical, physical and chemical by, their performance gradually deteriorated. When the oil major performance degradation to have harmful effects on the system level, the oil must be replaced. At present, replace the hydraulic system fluid commonly used in the following ways: periodic replacement; Ken oil samples according to experience and observation to determine whether oil change; change criterion regulations to determine whether the oil change before D two oil samples according to test results approach, while simple, but often not enough scientific and reasonable. The third way both to make full use of hydraulic oil, but also to ensure reliability and life of hydraulic equipment, subject to the availability of oil performance test conditions should be used in this way. Because of the type of liquid ffi equipment, working conditions and the use of different types of oil, which currently does not have a unified standard oil change, but the specific oil change indicator based on practical experience in various industrial sectors to develop as a reference oily management.