Seam
puckering
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 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.
3.The stitch length is not suitable for the
fabric being sewn.
4.Feed balancing dial is not set properly.
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.Lint or oil have collected on the hook or
needle bar.
2.Poor quality oil has been used.
3.The needle is damaged.
1.Clean the hook and feed dog.
2.Only use good quality sewing machine
oil.
3.Replace the needle.
Uneven
stitches,
uneven feed
1.Poor quality thread.
2.The bobbin case is threaded wrong.
3.Fabric has been pulled.
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
Cause
Correction
Reference
5.Thread is caught in the hook.
4.Slight humming sound coming from
internal motor.
4.Normal.
6.The feed dogs are packed with lint.
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
1.Thread is caught in the hook.
2.The feed dogs are packed with lint.
92
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page 89
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page 23
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The sewing
machine
doesn't
operate
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.
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.
5.The machine is not plugged in.
page 17
page 7/8
page 34
page 89
page 16
page 89
Summary of Contents for Quest PLUS BLQ2-PL
Page 1: ......
