Lubricate each worn part according to the instructions, especially the moving and fixed parts of the cutter, and add lubricating oil every 2-3 hours; If any abnormalities occur during the homework process, the engine should be immediately turned off, and the areas with abnormalities should be checked. Blocked areas should be cleaned up in a timely manner, and damaged areas should be replaced in a timely manner. Do not continue to act recklessly with the mentality of dragging as soon as possible, in order to avoid causing damage to other good parts; During use, it is necessary to regularly check whether the oil and water meet the requirements, and if they are insufficient, they should be added in a timely manner.