Troubleshooting Guide - Sunbeam Domestic 70 Operating Instructions Manual

PROBLEM
1. The machine is not threaded correctly.
2. The bobbin case is not correctly
Loose
threaded.
3. Needle/fabric/thread combination is
stitches
wrong.
4. Thread tension wrong.
1. The needle is too thick for the fabric.
Seams
2. The stitch length is adjusted
gather
incorrectly.
or pucker
3. The thread tension is too tight.
Uneven 1. Poor quality thread.
2. The bobbin case is not correctly
stitches,
threaded.
uneven
3. Fabric has been pulled.
feed
The
1. The machine must be lubricated.
2. Flu or oil have collected on the hook
machine
or needle bar.
is noisy
3. Poor quality oil has been used.
4. The needle is damaged.
The 1. Thread is caught in the hook.
machine
jams
47

Troubleshooting guide

CAUSE
46
CORRECTION
1. Check the threading.
2. Thread the bobbin case as
illustrated.
3. The needle size must suit the
fabric.
4. Correct the thread tension.
1. Select a f iner needle.
2. Readjust the stitch length.
3. Loosen the thread tension.
1. Select a better quality thread.
2. Remove bobbin case, rethread
and insert correctly.
3. Do not pull on the fabric while
sewing, let it be taken up 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.
1. Remove the upper thread and
bobbin case, turn the handwheel
backwards and forwards by hand
and remove the thread remains.
Lubricate as described.