Troubleshooting
A-12
h
Set the bobbin in the bobbin case.
• Refer to “Cleaning the race” on page A-2.
i
If the needle is bent, replace it with a new one.
• Refer to “Replacing the needle” in the “Basic
operations” section.
j
Turn on the machine, and then press
(Needle
position button) to raise the needle.
• Refer to “Upper Threading” in the “Basic operations”
section.
k
Thread the machine correctly.
• For details on threading the machine, refer to “Upper
Threading” in the “Basic operations” section.
■
Symptom 2: The upper thread is tangled, for
example, in the race, or fabric is caught in the
machine.
Cause
Thread is tangled below the needle plate.
Remedy
Remove the fabric and reset the thread and bobbin by
following the procedure below.
a
Turn off the machine.
b
Remove the fabric from the machine.
• Refer to “Fabric is caught in the machine and cannot
be removed” on page A-7.
c
Remove the upper thread and bobbin.
• Refer to “Fabric is caught in the machine and cannot
be removed” on page A-7.
d
Remove the bobbin case.
• Refer to “Fabric is caught in the machine and cannot
be removed” on page A-7.
e
If threads remain in the bobbin case, remove it.
• Refer to “Fabric is caught in the machine and cannot
be removed” on page A-7.
f
Insert the bobbin case so that the
S
mark on the
bobbin case aligns with the
z
mark on the machine.
• Refer to “Cleaning the race” on page A-2.
g
Attach the needle plate cover.
• Refer to “Cleaning the race” on page A-2.
h
Set the bobbin in the bobbin case.
• Refer to “Cleaning the race” on page A-2.
i
If the needle is bent, replace it with a new one.
• Refer to “Replacing the needle” in the “Basic
operations” section.
j
Turn on the machine, and then press
(Needle
position button) to raise the needle.
• Refer to “Upper Threading” in the “Basic operations”
section.
k
Thread the machine correctly.
• For details on threading the machine, refer to “Upper
Threading” in the “Basic operations” section.
■
Symptom 3: The needle breaks, or the needle
bends and thus hits the needle plate.
Cause
You have not used the right combination of fabric, thread
and needle.
Remedy
Choose a thread and needle that are appropriate for the
type of fabric.
• Refer to “Fabric/Thread/Needle Combinations” in the
“Basic operations” section.
■
Symptom 4: The fabric does not feed.
Cause 1
The thread has become clogged as the stitch is too fine.
Remedy 1
Lengthen the stitch length.
• Refer to “Setting the stitch width” and “Setting the
stitch length” in the “Basic operations” section.
Cause 2
Feed dog is in down position.
Remedy 2
Raise feed dog.
• Refer to “Free motion quilting” in the “Sewing”
section.
Summary of Contents for PRESTO
Page 1: ......
Page 2: ......
Page 52: ...Stitch Setting Chart B 44 ...
Page 96: ...Decorative Stitching S 44 ...
Page 104: ...Sewing the Various Built in Decorative Patterns D 8 ...
Page 127: ......
Page 128: ...English 888 F11 Printed in Vietnam XG5453 001 ...