First, to prevent contamination of hydraulic oil Sawing machine products by using the provisions of vertical, the choice of hydraulic oil. A closed tank is used and an air cleaner is installed at the inlet. Use, should prevent moisture, emulsion, dust, fiber debris and other mechanical debris intrusion. The oil level of the hydraulic tank should be within the specified oil level after the system piping and components are filled with oil. The hydraulic system must be thoroughly cleaned before it can be used. Refueling must be strictly filtered. Often check the oil filter, once the pollution is replaced immediately. Check the quality of hydraulic oil regularly. First, the degree of oxidation of hydraulic oil. If the hydraulic oil color was dark brown and a bad smell, that has been oxidized. The deeper the brown, the more concentrated the malodorous, indicating that the more severe the degree of oxidation. At this point, should replace the new oil. The second is the hydraulic oil moisture content. If the hydraulic oil was milky white, the smell has not changed, indicating that too much water mixed. Take a small amount of hydraulic oil droplets in the hot iron, if issued a "Baba" sound, that contains water. At this point, should replace the new oil. Third, the impurity content of hydraulic oil. Take a few drops of hydraulic oil on the hand, twist with your fingers, if more metal particles or flash point (sun), to prove that the hydraulic oil contains mechanical impurities too much. A precipitate of not less than 42 h must be applied and then filtered to be used. Timely replacement of hydraulic oil. After shutdown, the operating device to make it placed in the highest position, turn off the engine, the use of hydraulic oil weight, take advantage of hydraulic oil heat when the oil (easy to mechanical impurities, oil out), and then clean tank and piping, add new oil. Clean the hydraulic system properly. Do not use kerosene or diesel as a cleaning solution. The maximum possible flow rate should be used in the cleaning process to cause the liquid flow in the piping to be turbulent and to complete the action of the actuating elements to flush the contaminants from the various pumps, valves and hydraulic cylinders. After the cleaning, in the hot state drain the cleaning fluid, replace the new oil. Second, to prevent the oil temperature is too high to maintain the normal vertical sawing tank fuel tank, the system has enough oil for circulation cooling. When the actuator does not work, the system should be unloaded in time. Clean the cooling unit regularly to keep it in good working condition. According to the working environment temperature selection of hydraulic oil, high ambient temperature should be selected with high viscosity oil, low ambient temperature should be selected with low viscosity oil. When the temperature is higher than 30 ℃, the machine operating time shall not exceed 4h. When the temperature is lower than 10 ℃, the system should be run in the absence of load state 20min, until the oil temperature rose to the specified value and then work. Third, to prevent the air into the suction pipe and the pump drive shaft seal at the pressure of the lower parts of the atmospheric pressure, should pay attention to prevent leakage. Prevent oil return pipe into the air when the oil back. If the system has entered the air, leak parts should be promptly detected and excluded. After adding the new oil, should continue to manipulate the working device to raise, lower, flip, remove the system of air. Fourth, the strict implementation of operating procedures Vertical Saw Shoufang lever in time, the action must be smooth and accurate, to avoid too much too fast, so as not to suddenly open or close the hydraulic cylinder and hydraulic motors and other executive agencies into and out of the port, the pressure Impact, leading to the Ministry of oil seal accelerated damage, high-pressure tubing bubble burst, pipe joints loose leaks, and even may make the overflow valve due to instantaneous opening is too large and the spool stuck, the occurrence of internal leakage, resulting in operational inefficiency, reduced efficiency , Shorten the service life. 5, routine maintenance Vertical Saw Check the work before the fasteners and fittings without loose, whether the deformation or damage to the pipeline. Before the initial operation of the hydraulic pump, the pump should be filled with oil, no air operation. Hydraulic pump starts, should be continuous operation (especially in cold regions), to confirm its flexible operation normal, no abnormal sound and then work. Working device hydraulic system distribution valve working pressure, if more or less than the specified value, it should be adjusted. In addition to observing the oil temperature, pressure, sound, etc., the system should also observe the working condition of the hydraulic motor, the reversing valve, the relief valve and the oil leakage and vibration of the whole system.