Regularly check whether the installation bolts of filters, valves, motors, oil pumps, oil cylinders, etc. are loose, and whether there is oil leakage at each joint. Observe the oil level gauge on the side of the oil tank. When the hydraulic oil is too low, add the same grade of filtered hydraulic oil to prevent the additives in various brands of hydraulic oil from chemically reacting, causing early wear of hydraulic components. Clean the hydraulic oil tank and change the oil every six months, and use No. 68 anti-wear hydraulic oil for hydraulic oil. When adding or changing oil, be careful not to mix impurities and dirt into the oil tank. The new oil added or changed must be filtered in advance. The hydraulic oil filter should be cleaned or replaced after every 500 hours of use.
