02. Ensure that the hydraulic oil is not used at high temperatures; the oil will quickly oxidize and deteriorate at high temperatures; the air filter on the hydraulic station should use a filter that can filter both particles and moisture; it is sold on the market;
02. When changing the hydraulic oil, all hydraulic oil filter elements (return oil filter element, oil suction filter element, pilot filter element) must be replaced at the same time, otherwise it is equivalent to not changing.
05. Fill the oil to the standard position, there is usually an oil level gauge on the hydraulic oil tank, please check the level gauge. Pay attention to the parking method, generally all the cylinders are retracted, that is, the forearm and bucket are fully extended and landed.