Troubleshooting - Pfaff C1100 Pro Owner's Manual

TROUBLE SHOOTING
Problem
1.The needle thread tension is too tight.
2.The needle thread is not threaded
correctly.
Seam
3.The needle is too heavy for the fabric
puckering
being sewn.
4.The stitch length is too long for the fabric.
5.The presser foot pressure is not correctly
adjusted.
1.The correct presser foot is not used.
2.The needle thread tension is too tight.
Stitches are
3.The stitch length is not suitable for the
distorted
fabric being sewn.
4.Feed balancing dial is not set properly.
1.Thread is caught in the hook.
The
machine
2.The feed dogs are packed with lint.
jams
1.Lint or oil have collected on the hook or
needle bar.
2.Poor quality oil has been used.
The
3.The needle is damaged.
machine is
noisy
4.Slight humming sound coming from
internal motor.
5.Thread is caught in the hook.
6.The feed dogs are packed with lint.
1.Poor quality thread.
Uneven
2.The bobbin case is threaded wrong.
stitches,
uneven feed
3.Fabric has been pulled.
1.The machine is not turned on.
2.The START/STOP button or foot control
pedal was not pressed.
The sewing 3.The presser foot lever is raised.
machine
4.A thread is caught in the hook race.
doesn't
operate
5.The machine is not plugged in.
Cause
91
APPENDIX
Correction
1.Loosen the thread tension.
2.Rethread the machine.
3.Choose a needle to match the thread and
fabric.
4.Change the stitch length.
5.Adjust the presser foot pressure.
1.Select the correct foot.
2.Loosen the thread tension .
3.Change stitch length.
4.Adjusting stitch balance.
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
1.Clean the hook and feed dog.
2.Only use good quality sewing machine
oil.
3.Replace the needle.
4.Normal.
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
1.Select a better quality thread.
2.Remove the bobbin case, then thread
and reinsert correctly.
3.Do not pull on the fabric while sewing,
let it be taken up by the machine.
1.Turn on the machine.
2.Press the START/STOP button or the
foot control pedal.
3.Lower the presser foot lever.
4.Remove the upper thread and bobbin
case, turn the handwheel backwards
and forwards by hand and remove the
thread remnants.
5. Connect the power cord plug to the
electrical outlet.
Reference
page 42
page 27
page 41
page 43
page 45
page 92
page 42
page 43
page 44
page 88
page 88
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page 41
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page 8/9
page 36
page 88
page 18