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APPENDIX
63
4
Symptom 1 Symptom 3
1
Lower side of fabric
2
Lower thread visible from upper side of fabric
3
Upperthread
4
Uppersideoffabric
5
Lower thread
6
Upperthreadvisiblefromlowersideoffabric
■
Cause/remedy/check details
Cause1
The machine is not correctly threaded.
<Withsymptoms1and2describedabove>
The lower threading is incorrect.
Return the upper tension-control dial to “4”,
andthenreferto“Upperthreadtightenedup”
(page62)tocorrectthethreading.
<Withsymptoms3through5describedabove>
The upper threading is incorrect.
Return the upper tension-control dial to “4”,
and then refer to “Tangled thread on wrong
sideoffabric”(page62)tocorrectthe
upper threading.
Cause2
A needle and thread appropriate for the
fabric are not being used.
•Referto“Needletypesandtheiruses”(page
20)tocheckthataneedleandthread
appropriate for the fabric are being used.
Cause3
An appropriate setting on the upper tension-
control dial is not selected.
Turn the upper tension-control dial to select an
appropriate thread tension.
* Adjustthethreadtensionwhiletestsewing
on a piece of scrap fabric that is the same as
that used in your project.
Note
•If the upper threading and lower threading
are incorrect, the thread tension cannot
be adjusted correctly, even by turning the
uppertension-controldial.Checktheupper
threading and lowe threading first, and then
adjust the thread tension.
•Whenthelowerthreadisvisiblefrom
the upper side of the fabric, turn the dial
counterclockwise.
4
3
5
•Whentheupperthreadisvisiblefromthe
lower side of the fabric, turn the dial clockwise.
4
3
5
Fabric is caught in the machine
and cannot be removed
If the fabric is caught in the sewing machine and cannot
be removed, the thread may have become tangled under
the needle plate. Follow the procedure described below
to remove the fabric from the machine. If the operation
could not be completed according to the procedure,
instead of attempting to complete it forcefully, contact
your nearest authorized service center.
■
Removing the fabric from the machine
1
Immediately stop the sewing machine.
2
Turn off the sewing machine.
3
Remove the needle.
If the needle is lowered into the fabric, turn the
handwheelawayfromyou(clockwise)toraisethe
needle out of the fabric, and then remove the needle.
•Referto“Replacingtheneedle”(page21).
4
Remove the presser foot and presser foot
holder.
•Referto“Replacingthepresserfoot”(page
23)and“Removingthepresserfoot
holder”(page24).
5
Lift up the fabric and cut the threads below it.
If the fabric can be removed, remove it.
6
Remove the needle plate cover.
1
Needle plate cover release
2
Needleplatecover(frontpart)
7
Cut out the tangled threads, and then remove
the bobbin.
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