Obstacle Avoidance - Premier MCO-5424 Manual De Instrucciones

Obstacle avoidance

Malfunction
Upper thread breaks
Lower thread breaks
Needle breaks
Skipping stitch
7. Upper thread is not correctly installed.
8. Upper thread tension is too tight.
9. Needle is bent or dull.
10. Needle is misplaced.
11. Fabrics are not pivoted backward after sewing.
12. Thread is either too thick or too thin.
4. Lower thread is not threaded properly in the shuttle
hook.
5. There is fine hair inside hook.
6. Bobbin is damaged and operation out of order.
8. Needle is not correctly installed.
9. Needle is bent or dull.
10. Needle clamp screw goes loose.
11. Upper thread tension is too tight.
12. Fabrics are not pivoted backward after sewing.
13. Needle is too thin to the cloth to be stitched.
14. Pattern selection dial is not turned properly.
5. Needle is incorrectly inserted.
6. Needle is bent or dull.
7. Neither needle nor thread is fit for sewing.
8. Upper threading is not correct.
Cause Explanation
See Page 16
See Page 18
See Page 11
See Page 11
See Page 22
See Page 12
See Page 15
Clean the bobbin
case
Replace bobbin
See Page 11
See Page 11
See Page 11
See Page 18
See Page 22
See Page 12
See Page 19
See Page 11
See Page 11
See Page 11
See Page 16
P-43