Brother International Innov-is 85e Operation Manual - Page 130

Troubleshooting

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APPENDIX Troubleshooting If the machine stops operating correctly, check the following possible problems before requesting service. You can solve most problems by yourself. If you need additional help, the Brother Solutions Center offers the latest FAQs and troubleshooting tips. Visit us at " http://solutions.brother.com " . If the problem persists, contact your dealer or the nearest authorized service center. Frequent troubleshooting topics Detailed causes and remedies for common troubleshooting topics are described below. Be sure to refer to this before contacting us. ■ Upper thread tightened up ■ Tangled thread on wrong side of fabric page 128 page 129 ■ Incorrect thread tension page 131 ■ Fabric is caught in the machine and cannot be removed page 132 ■ When the thread became tangled under the bobbin winder seat page 135 Upper thread tightened up ■ Symptom • The upper thread appears as a single continuous line. • The lower thread is visible from the upper side of the fabric. (Refer to the illustration below.) • The upper thread has tightened up, and comes out when pulled. • The upper thread has tightened up, and wrinkles appear in the fabric. • The upper thread tension is tight, and the results do not change even after the thread tension is adjusted. ■ Cause Incorrect lower threading If the lower thread is incorrectly threaded, instead of the appropriate tension being applied to the lower thread, it is pulled through the fabric when the upper thread is pulled up. For this reason, the thread is visible from the upper side of the fabric. ■ Remedy/check details Correctly install the lower thread. Turn off the sewing machine. a Remove the bobbin from the bobbin case. b Place the bobbin in the bobbin case so that the c thread unwinds in the correct direction. • Hold the bobbin with your right hand with the thread unwinding to the left, and hold the end of the thread with your left hand. Then, with your right hand, place the bobbin in the bobbin case. a Lower side of fabric b Lower thread visible from upper side of fabric c Upper thread d Upper side of fabric e Lower thread 128 If the bobbin is inserted with the thread unwinding in the wrong direction, sewing will be done with an incorrect thread tension.

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APPENDIX
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128
Troubleshooting
If the machine stops operating correctly, check the following possible problems before requesting service.
You can solve most problems by yourself. If you need additional help, the Brother Solutions Center offers
the latest FAQs and troubleshooting tips. Visit us at “ http://solutions.brother.com
” .
If the problem persists, contact your dealer or the nearest authorized service center.
Frequent troubleshooting topics
Detailed causes and remedies for common troubleshooting topics are described below. Be sure to refer to
this before contacting us.
Upper thread tightened up
■
Symptom
• The upper thread appears as a single
continuous line.
• The lower thread is visible from the upper
side of the fabric. (Refer to the illustration
below.)
• The upper thread has tightened up, and
comes out when pulled.
• The upper thread has tightened up, and
wrinkles appear in the fabric.
• The upper thread tension is tight, and the
results do not change even after the thread
tension is adjusted.
a
Lower side of fabric
b
Lower thread visible from upper side of fabric
c
Upper thread
d
Upper side of fabric
e
Lower thread
■
Cause
Incorrect lower threading
If the lower thread is incorrectly threaded, instead
of the appropriate tension being applied to the
lower thread, it is pulled through the fabric when
the upper thread is pulled up. For this reason, the
thread is visible from the upper side of the fabric.
■
Remedy/check details
Correctly install the lower thread.
a
Turn off the sewing machine.
b
Remove the bobbin from the bobbin case.
c
Place the bobbin in the bobbin case so that the
thread unwinds in the correct direction.
• Hold the bobbin with your right hand with
the thread unwinding to the left, and hold the
end of the thread with your left hand.
Then, with your right hand, place the bobbin
in the bobbin case.
If the bobbin is inserted with the thread unwinding
in the wrong direction, sewing will be done with
an incorrect thread tension.
■
Upper thread tightened up
page 128
■
Tangled thread on wrong side of fabric
page 129
■
Incorrect thread tension
page 131
■
Fabric is caught in the machine and cannot be removed
page 132
■
When the thread became tangled under the bobbin winder seat
page 135