4
HOW TO ADJUST......
Position of the double chain looper
1. Before adjusting the timing, position the double chain looper correctly.
2. Too much adjustment will cause damage to other parts or cause the needle to skip stitches.
How to use the gauge
1. Position the gauge as shown in the illustration.
2. Firmly tighten the screw.
Double chain looper
Set screw
DL lever
7mm