ultrasonic cavitation machine Vacuum Radio frequency sucking problem

For the AU-61 超音波キャビテーション cavitation machine, one customer said the vacuum function without any sucking.

For the checking step, first, we need to make sure the connection is good, please check the photo, when the vacuum RF connect to the machine, we need to screw a little with clockwise direction. and make sure it can not pull out easily.

After that, the handpiece still no vacuum sucking, we need to check connection vacuum hole, as usual there is sucking press on the hole. As the below photo.

If no vacuum sucking pressure, it mean that the pump or the inside pipe connection problem. In this case, we need the next step to fix the machine.

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