Brother PC660LA - Manual (Page 166)

APPENDIX
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164
While winding the
bobbin, the bobbin
thread was wound
below the bobbin
winder seat.
You have not wound the bobbin
thread properly.
After removing the thread wound
below the bobbin winder seat,
wind the bobbin correctly.
page 158
Bobbin thread does
not wind neatly on
the bobbin.
The thread is not passed through the
bobbin-winding thread guide
correctly.
Correctly pass the thread through
the bobbin-winding thread guide.
page 24
Bobbin spins slowly.
Move the sewing speed controller
to the right (so that the speed will
be fast).
page 25
The thread that was pulled out was
not wound onto the bobbin
correctly. Wind the thread that was pulled
off round the bobbin five or six
times clockwise.
page 25
Fabric being sewn
with the machine
cannot be removed.
Thread is tangled below the needle
plate.
Lift up the fabric and cut the
threads below it, and clean the
race.
page 155
The fabric feeds in
the opposite
direction.
The feed mechanism is damaged.
Contact your dealer or the nearest
authorized service center.
–
The upper thread
has tightened up.
The bobbin thread is incorrectly
installed. Correctly install the bobbin
thread. page 26,
page 151
The thread is
tangled on the
wrong side of the
fabric.
You have not threaded the upper
thread properly.
Correct the upper threading.
page 28,
page 152
Symptom Probable Cause Remedy Reference