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Troubleshooting
Appendix A-7
MAINTENANCE AND TROUBLESHOOTING
A
f
While holding the thread lightly with your right hand,
pull the thread with your left hand, and then pass the
thread behind the thread guide cover and to the front.
1 Thread guide cover
g
While holding the thread lightly with your right hand,
pass the thread under the thread guide plate, and then
pull it up.
1 Thread guide plate
h
Pass the thread through the thread channel in the order
shown below.
1 Shutter
i
Lower the presser foot.
j
Slide the thread behind the needle bar thread guide.
The thread can easily be passed behind the needle bar
thread guide by holding the thread in your left hand,
then feeding the thread with your right hand, as shown.
Make sure that the thread is passed through to the left of
the tab of the needle bar thread guide.
1 Needle bar thread guide
2 Tab
k
Next, use the needle threader to thread the needle.
Continue with the procedure in “Threading the
needle” in the “Basic operations” section.
Incorrect thread tension
■ Symptoms
• Symptom 1: The bobbin thread is visible from the
right side of the fabric. (Refer to illustration below)
• Symptom 2: The upper thread appears as a straight
line on the right side of the fabric.
• Symptom 3: The upper thread is visible from the
wrong side of the fabric. (Refer to illustration below)
• Symptom 4: The bobbin thread appears as a straight
line on the wrong side of the fabric.
• Symptom 5: The stitching on the wrong side of the
fabric is loose or has slack.
Symptom 1
Symptom 3
1 Wrong side of fabric
2 Bobbin thread visible from right side of fabric
3 Upper thread
4 Right side of fabric
5 Bobbin thread
6 Upper thread visible from wrong side of fabric
1
1
1
2
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