yearend maintenance -亚博88体育a. check the hydraulic and pipeline connections. if the pipeline is damaged, it should be replaced immediately, and the connection part b. remove and disassemble the lowering valve, and use compressed air to remove the lubricant from the valve. effective with loose spring protection pipe joints. c. drain all the hydraulic oil in the oil tank, open the oil tank, take out the oil suction filter, clean it, and return it to the oil tank. install it in its original position. fill the fuel tank with new oil. |