36
Problem Cause Solution Page
Thread loops
are too loose
• Too little fabric in the stitch. • Increase the cutting width. 13
Motor failure • Noise is heard.
• Motor does not turn at all.
• Sparks are abnormally large.
• Replace the carbon brush with a new
one.
(Note) Contact your distributor to ask
for the replacement of the car-
bon brush.
--
Needle eyelet
cannot be
threaded
• The “
” marking on the side of the
front cover is not aligned with the “
”
marking on the handwheel.
• Turn the handwheel to align the “
”
marking on it with the “
” marking on
the side of the front cover.
19,20
Upper and
lower loopers
cannot be
threaded
• When the handwheel is not xed.
• When the thread is not inserted into
the bottom of the threading hole.
• When the thread is not slacked before
the threading hole.
• When the thread is caught somewhere
in the thread path.
• When the pipe is clogged with lint.
• Raise the threading changeover lever
and turn the handwheel to x it.
• Insert the thread into the threading
hole by 1 to 2 cm.
• Slack the thread before the threading
hole.
• Remove the thread from the location
where it has been caught.
• Thread the loopers by means of the
looper threader supplied in the acces-
sory bag to remove the lint in the pipe.
17,18
17,18
17,18
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21
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