1.Before operation please clean the machine with a soft cloth and add lubricating oil into the holds. Let the machine revolve some minutes, then wipe the oil stain off.
2.Rotate the disc only when the hooking needle is on the position as illustrated, or the needle is easy to bend and break.
3.Turn the controlled-wheel counter clockwise to aim the hooking needle at the disc needles groove.
4.After operation please clean the machine and protect the disc needles with aluminum hood.