Making thread on chain machine for 09D and 09M

1. Get the needle down to 0 position by computer operation: needle height
2. Press the dot icon to get the needle rotate to position for picking up thread
3. Insert the string ring, which is made of string from the point, which is about 5mm away on the front of the needle and at the opposite side of the shiny screw in the picture.

Shiny screw, to make thread from the opposite Side of the screw after press dot