Rotary hook position is wrong & needle broken

 

 

 

Solutions:

 

 

1. Turn the dial to 70 degrees and loosen the screw

 

 

 

 

2 Turn the dial to 140 degrees and loosen the second screw
 

 

3 Turn the dial to 210 degrees and loosen the third screw

 

 

4 Pull down the needle bar

 

 

 

5 Make the gap between the hook tip and the needle hole 0.05 to 0.10mm.

 

 

 

6 Make the needle hole position 1-1.5 mm lower than the hook claw. Make the position of needle hole 1-1.5mm below the pawl of rotary hook.