Maintenance and troubleshooting
64
Sewing problems and their solutions
Problem/Cause
Remedy
1. The machine skips stitches
The needle is not properly inserted.
Push needle fully upwards. Flat side
facing the back.
Wrong needle is in use.
Use needle system 130/705 H.
Needle is bent or blunt.
Insert a new needle.
The machine is not properly threaded.
Check how the machine is threaded.
Needle is too small for thread.
Use a larger needle.
2. 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
Only use good quality threads.
become dry after overlong storage.
Thread is too thick.
Use needle with large eye (system 130 N).
3. 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.
See needle table (Page 59, 60).
Needle is bent, and has hit the needle
Only guide the fabric lightly.
plate because you are pulling
or pushing the fabric.
The bobbin case is not properly inserted.
When you insert the bobbin case,
push it fully into the stop.
Pull lightly on the end of the thread to
make sure bobbin case is secure.
4. The seam is sewn unevenly
The tension needs adjusting.
Check needle thread tension.
Thread is too thick, slubbed or hard.
Only use good quality threads.
The bobbin thread is unevenly wound.
Do not wind thread by hand.
Make sure thread is pulled solidly into
bobbin tension spring.
Thread loops at top or underside of fabric.
Re-thread machine.
Check the needle thread
tension.
5. The machine does not feed or feeds irregularly
Sewing lint has collected between
Remove needle plate,
the feed dog teeth rows.
remove lint with brush.
6. The machine is running with dif
À
culty
There are thread remnants
Remove the threads and apply a drop
in the hook ways.
of oil to the hook.
Important notes:
Before changing presser feet and needle the master switch must be
switched off. Do not attempt to sew without fabric under the presser foot.
When leaving the machine, even for only a short time, switch off the master switch.
This is important if there are any children nearby.