What oil should be added to Roots blower? How often does it take to change the oil of a Roots blower?

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Roots blowers are now more and more widely used, which involves the maintenance of Roots blowers. If properly maintained, it will * * Extend the service life and operational stability of the Roots blower. The most basic maintenance of a Roots blower is to change the oil. Generally, the oil must be changed after the Roots blower has been running for 1,000 hours. Use 220# gear oil for replacement. The oil level should be half of the oil mirror and should not be too high or too low. Another thing to note is that when changing the oil, drain the oil in the tank first and then inject new oil. It is best not to add on top of old oil, as this will cause the oil in the tank to be too dirty and too thick over time. Thereby affecting the operation of Roots blower. During daily inspections, you should also pay attention to the position of the oil mirror. Once the oil level is found to be lower than half of the oil mirror, it should be replenished in time. If the Roots blower is short of oil for a long time, the motor may burn out in severe cases. In addition to the daily inspection and attention of oil level, the inspection of belt tightness and air filter element is equally important. All parts of the Roots blower, no matter how small, are crucial. Don't be lazy and neglect, and lose the big for the small.