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103
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Patterns are
distorted
1. The needle thread tension is too tight.
2. The needle thread is not threaded
correctly.
3. The needle is too heavy for the fabric
being sewn.
4. The stitch length is too long for the
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.
3. The stitch length is not suitable for the
fabric being sewn.
4. Feed balancing dial is not set properly.
1. Lint or oil have collected on the hook
or needle bar.
2. Poor quality oil has been used.
3. The needle is damaged.
1. Poor quality thread.
2. The bobbin case is threaded wrong.
3. Fabric has been pulled.
Cause
5. Thread is caught in the hook.
4. Slight humming sound coming from
internal motor.
6. The feed dogs are packed with lint.
1. Thread is caught in the hook.
2. The feed dogs are packed with lint.
1. The machine is not turned on.
2.The START/STOP button or foot
control pedal was not pressed.
3. The presser foot lever is raised.
4. A thread is caught in the hook race.
5. The machine is not plugged in.
Seam
puckering
1. Select the correct foot.
2. Loosen the thread tension .
3. Change stitch length.
4. Adjusting pattern balance.
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.
The
machine
jams
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
The
machine is
noisy
1. Clean the hook and feed dog.
2. Only use good quality sewing machine
oil.
3. Replace the needle.
Uneven
stitches,
uneven feed
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.
Problem
Correction Reference
4. Normal.
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
page 46
page 31
page 45
page 48
page 46
page 103
page 46
page 48
page 49
page 99
page 99
--
page 37
--
page 45
page 27
--
The sewing
machine
doesn't
operate
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.
page 18
page 9/10
page 37
page 99
page 17
page 99
TROUBLE SHOOTING
102
103


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