When welding the power line, the temperature of the soldering iron shall not exceed 280 degrees. It is better to use the constant temperature soldering iron and set the soldering iron temperature as 250 degrees.
The larger side of the shock head (with a screw hole) is the shock surface that can be glued to the bottom of the cleaning basin. The cleaning basin should be grounded reliably. Shock head or transducer ceramic plate application shock head glue firm paste on the bottom of the cleaning basin, can also be used AB adhesive paste, but the effect is slightly poor, such as using epoxy resin ratio of 10:4 can be.