Pfaff ClassicStyle 1525 Owner's Manual - Page 50

Trouble-shooting

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Maintenance and trouble-shooting Trouble-shooting The machine skips stitches The needle is not properly inserted. The wrong needle is inserted. Needle is bent or blunt. Machine is not properly threaded. Needle is too small for thread. Push needle fully upwards, Áat side facing the back. Use a needle system 130/705 H. Insert a new needle. Check how machine is threaded. Use a larger needle. Needle thread breaks See reasons above. Thread tension is too tight. Thread is poor or has slubs in it, or has become dry after too-long storage. Thread is too thick. See above. Adjust thread tension. Only use good threads. Use needle with large eye (System 130 N). Needle breaks off Needle is not pushed fully in. Needle is bent. Needle is too thick or too thin. Needle is bent, and has hit the needle plate because you are pulling or pushing the fabric. The bobbin case is not properly installed. Insert new needle and push fully in. Insert new needle. Insert new needle. Let the machine feed the fabric. Only guide the fabric lightly. When you insert the bobbin case, push it fully into the stop. Seam is sewn unevenly The tension needs adjusting. Thread is too thick, slubbed or hard. The bobbin thread is unevenly wound. Thread bunching at top or bottom side of fabric. Check top tensions. Only use perfect threads. Do not wind thread free-hand, but run it on through the winding tension. Thread up correctly. Check top tensions. 3:4

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Maintenance and trouble-shooting
The machine skips stitches
The needle is not properly inserted.
Push needle fully upwards,
Á
at side
facing the back.
The wrong needle is inserted.
Use a needle system 130/705 H.
Needle is bent or blunt.
Insert a new needle.
Machine is not properly threaded.
Check how machine is threaded.
Needle is too small for thread.
Use a larger needle.
Needle thread breaks
See reasons above.
See above.
Thread tension is too tight.
Adjust thread tension.
Thread is poor or has slubs in it, or has
become dry after too-long storage.
Only use good threads.
Thread is too thick.
Use needle with large eye (System 130 N).
Needle breaks off
Needle is not pushed fully in.
Insert new needle and push fully in.
Needle is bent.
Insert new needle.
Needle is too thick or too thin.
Insert new needle.
Needle is bent, and has hit the needle plate
because you are pulling or pushing the
fabric.
Let the machine feed the fabric.
Only guide the fabric lightly.
The bobbin case is not properly installed.
When you insert the bobbin case, push
it fully into the stop.
Seam is sewn unevenly
The tension needs adjusting.
Check top tensions.
Thread is too thick, slubbed or hard.
Only use perfect threads.
The bobbin thread is unevenly wound.
Do not wind thread free-hand, but run
it on through the winding tension.
Thread bunching at top or bottom side of
fabric.
Thread up correctly. Check top
tensions.
Trouble-shooting