Trouble Shooting Guide - SilverCrest SNM 33 B1 Bedienings- En Veiligheidsinstructies
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Zie ook voor SNM 33 B1:
- Bedienings- en veiligheidsinstructies (72 pagina's) ,
- Bedienings- en veiligheidsinstructies (98 pagina's)
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Trouble shooting guide
Problem
Cause
Upper thread
1.The machine is not threaded
breaks
correctly.
2.The thread tension is too tight.
3.The thread is too thick for the needle.
4.The needle is not inserted correctly.
5.The thread has become wound
around the bobbin winder spindle (13).
6.The needle is damaged.
Lower thread
1.The bobbin case is not inserted
breaks
correctly.
2.The bobbin case is threaded wrongly.
Skipped
1.The needle is not inserted correctly.
stitches
2.The needle is damaged.
3.The wrong size needle has been
used.
4.The wrong presser foot is installed.
Needle breaks
1.The needle is damaged.
2.The needle is not correctly inserted.
3.Fabric too thick/ needle size wrong.
4.The wrong presser foot is attached.
Loose stitches
1.The machine is not correctly
threaded.
2.The bobbin case is not correctly
threaded.
3.Needle/ fabric/ thread combination is
wrong.
4.Thread tension wrong.
1.The needle is too thick for the fabric.
Seams gather
2.The stitch length is wrongly adjusted.
or pucker
Uneven stitches,
1.The thread is too weak.
uneven feed
2.The bobbin case is wrongly threaded
3.Fabric has been pulled when sewing.
The machine is
1.The machine must be lubricated.
noisy
2.Fluff or oil have collected on the hook
or needle bar.
3.Poor quality oil has been used.
4.The needle is damaged.
The machine
Thread is caught in the hook.
jams
Correction
1.Rethread the machine.
2.Reduce the thread tension (3). (lower number)
3.Use a larger needle.
4.Remove and reinsert the needle. (flat side
towards the back)
5.Remove the bobbin (g) and unwind the
thread.
6.Replace the needle.
1.Remove and reinsert the bobbin case and pull
on the thread. The thread should pull easily.
2.Check both bobbin (g) and bobbin case.
1.Remove and reinsert needle. (flat side
towards the back)
2.Replace the needle.
3.Choose a needle size to suit the thread and
fabric.
4.Use the correct presser foot.
1.Replace the needle.
2.Insert the needle correctly (flat side towards
the back)
3.Choose a needle size to suit the thread and
fabric.
4.Use the correct presser foot.
1.Thread the machine correctly.
2.Thread the bobbin case as illustrated.
3.The needle size must suit the fabric and
thread.
4.Correct the thread tension.
1.Use a finer needle.
2.Check the thread tension.
1.Use stronger thread.
2.Rethread the bobbin case and insert correctly.
3.Do not pull on the fabric. It must be
automatically moved by the machine.
1.Lubricate as described.
2.Clean the hook and feed dog as described.
3.Only use good quality sewing machine oil.
4.Replace the needle.
Remove the upper thread and bobbin case,
turn the handwheel (20) backwards and
forwards by hand and remove the thread
remains. Lubricate as described.
Maintenance
GB / IE
91
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