Electric sewing machine how to refuel video tutorial

Electric sewing machine refueling need to open the head cover, remove the internal mechanical moving parts on the lubricating oil, the specific operating steps are as follows:

1, use a screwdriver to unscrew the cover fixing screws.

2. Pull the lower part of the cover by hand.

3, remove the cover of the electric sewing machine.

4.Use the oil filler to align the internal mechanical parts.

5.Just fill the parts with oil by squeezing.