Troubleshooting - Pfaff C1100 Pro Owner's Manual

TROUBLE SHOOTING
Before calling for service, check the following items.
If the problem still persists, contact the place of purchase or your nearest authorized retailer.
Problem
1.The machine is not threaded correctly.
2.The thread tension is too tight.
Upper
3.The thread is too thick for the needle.
thread
breaks
4.The needle is not inserted correctly.
5.The thread is wound around the spool
holder pin.
6.The needle is damaged.
1.The bobbin case is not inserted correctly.
Lower
thread
breaks
2.The bobbin case is threaded wrong.
1.The needle is not inserted correctly.
2.The needle is damaged.
Skipped
3.The wrong size needle has been used.
stitches
4.The foot is not attached correctly.
5.The machine is not threaded correctly.
6.The presser foot pressure is not strong
enough.
1.The needle is damaged.
2.The needle is not correctly inserted.
3.Wrong needle size for the fabric.
Needle
4.The wrong foot is attached.
breaks
5.The needle clamp screw is loose.
6.The presser foot that is used is not appro-
priate for the type of stitch that you wish
to sew.
7.The upper thread tension is too tight.
1.The machine is not correctly threaded.
2.The bobbin case is not correctly threaded.
Loose
stitches
3.Needle/fabric/thread combination is wrong.
4.Thread tension is wrong.
1.The needle is too thick for the fabric.
Seams
gather or
2.The stitch length is adjusted wrong.
pucker
3.The thread tension is too tight.
Cause
1.Rethread the machine.
2.Reduce the thread tension to a lower
3.Select a larger needle.
4.Remove and reinsert the needle (flat
5.Remove the spool of thread and rethread
6.Replace the needle.
1.Remove and reinsert the bobbin case and
2.Rethread both bobbin and bobbin case.
1.Remove and reinsert needle (flat side
2.Insert a new needle.
3.Choose a needle to match the thread.
4.Check and attach correctly.
5.Rethread the machine.
6.Adjusting the presser foot pressure.
1.Insert a new needle.
2.Insert the needle correctly (flat side
3.Choose a needle to match the thread
4.Select the correct foot.
5. Use the screwdriver to firmly tighten the
6.Attach the presser foot that is appropriate
7.Loosen the upper thread tension.
1.Rethread the machine.
2.Rethread the bobbin case.
3.The needle size must match the fabric
4.Correct the thread tension.
1.Select a finer needle.
2.Readjust the stitch length.
3.Loosen the thread tension.
90
APPENDIX
Correction
number.
side towards the back).
machine.
pull on the thread. The thread should pull
easily.
towards the back).
towards the back).
and fabric.
screw.
for the type of stitch that you wish to sew.
and thread.
Reference
page 27
page 42
page 41
page 33
page 27
page 33
page 25
page 25
page 33
page 33
page 41
page 34
page 27
page 45
page 33
page 33
page 41
page 92
page 33
page 92
page 42
page 27
page 25
page 41
page 42
page 41
page 43
page 42