(9)检查工作油的变化。每隔1 -2个月分析一次工作油，调查劣化、污染度的情况及变色的程度。重点是污染度。掌握管路冲洗不够、配置不适当及周围环境、油箱结构等的影响。运转3~4 个月后更换工作油。对使用加热器和水冷冷却器的设备，重点调查一下工作油的劣化和水分是否混人的情况。对漏油、报动、松动等应特别生意校查(特到注应运输这中的螺检松动)。出来，所以 注意管路的油情况。
(1) Check, this period as running in operation period, the machine installation, bolt loosening, oil temperature rise, oil pollution, use conditions and environmental conditions should pay special attention to.
(2) the liquid pump should be operated by inching when it is started; it should run without load within 10 ~ 30min after starting.
(3) Oil control, check the maximum temperature, minimum temperature and up and down condition, check the relationship between room temperature and oil temperature. Find out whether the capacity of cooler and oil tank is appropriate relative to the surrounding conditions and service conditions, and whether the efficiency of cooler decreases.
(4) due to the abnormal sound of the Italian pump, the new pump is easy to be affected by bubbles and dirt due to less running in, resulting in high temperature and poor lubrication, resulting in occlusion and other situations.
(5) Check the pointer swing of the pressure gauge and the stability of the relief valve, and try to find the valve problems caused by machining error and poor sealing.
(6 lines, meaning movement. Poor circuit design and poor manufacturing quality may not be found during operation and commissioning, but often exposed due to the change of conditions in use. Special attention should be paid to contact the manufacturer if there is any abnormality, so as to study and solve it.
(7) the adjustment of flow rate and flow rate should be carried out carefully after understanding the instruction manual.
(8) Check the condition of the oil filter. Take out the oil suction filter, on-line oil filter and bypass oil filter every 1 ~ 2 weeks, check the blocking condition, the quality, quantity and size of the attachment, etc., so as to determine the change of the pollution degree of the system and where the pollution source is. The pollution of the system is serious in the early stage of operation, so special attention should be paid to it.
(9) Check the change of working oil. Analyze the working oil every 1-2 months to investigate the deterioration, pollution degree and discoloration degree. The focus is on pollution. Grasp the influence of insufficient pipeline flushing, improper configuration, surrounding environment and tank structure. Change the working oil after 3 ~ 4 months of operation. For the equipment using heater and water-cooled cooler, focus on investigating the deterioration of working oil and whether the water is mixed. Oil leakage, alarm, looseness, etc. should be checked in special business (special attention should be paid to the looseness of screw inspection in transportation). So pay attention to the oil condition of the pipeline.