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Always keep the cutting machine clean, the oil filter net is cleaned once a month, the hydraulic oil is fixed once a year, the oil level in the machine should be checked before work, and the same grade should be added when the machine level is lower than the specified liquid level. Hydraulic oil must not be mixed. When cutting, the workpiece should be placed in the center of the work area to make the force of the cutting machine uniform, thus extending the service life of the cutting machine.