JUKI HZL-G Serie Manual De Instrucciones página 109

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Case
● Needle can not be
threaded. (This is in case
needle threader will not
turn.)
● The hook of needle
threader does not go
through the needle eye.
● The needle threading lever
will not return to the original
position and the machine
can not turn properly.
(This is in case the hook of
needle threader remains in
the needles eye.)
● The machine will not start
even when start/stop button
is pressed.
● Thread breaks.
● Stitch is skipped.
● Thread tension is not good.
● Puckering occurs.
Cause (Reason)
● The needle is not in the up position.
(When needle is not in the up position,
needle threader will not turn.
This is to avoid damages to the hook.)
● The needle is not inserted fully.
● Hand wheel is turned by mistake while
the needle threading lever is in down
position. (in the process of threading to
the needle.)
● The foot controller is plugged in.
● The machine is incorrectly threaded.
● There is knot or knurl on the thread.
● The setting of manual thread tension is
incorrect.
● The needle is bent or the tip of needle
is broken.
● The needle is installed incorrectly.
● Threading of bobbin thread is not
correct.
● The bobbin can not turn smoothly
inside the hook holder.
● The needle size does not match the
thread.
● Thread take-up is not threaded.
● The needle thread is threaded in
correctly.
● The bobbin thread is threaded
incorrectly.
● The direction of spool cap doesn't
match the spool.
● The stitch length is too large on
light-weight fabrics.
● The needle tip is broken.
Solution
● Rotate the hand wheel and lift the
needle upwards.
● Check the installation of the needle.
● Turn hand wheel slightly away from
you. (to the opposite side when
sewing).
● Start/stop button can function when
foot controller is removed.
● Rethread the machine correctly.
● Remove knot or knurl from thread.
● Adjust thread tension manually
according to fabrics and thread to
be used.
● Change needle.
● Install needle correctly.
● Check the correct way of setting
bobbin thread.
● Check the correct way of winding
bobbin thread.
● Check the combination of thread
and needle.
● Rethread the machine correctly.
● Rethread the machine correctly.
● Check the correct way of setting
bobbin thread.
● Attach the spool cap in a correct
direction.
● Make the stitch length smaller
(shorter).
● Change needle.
Refer-
ence
page
39
41
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18
36
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45
41
41
35
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43
36
36
35
36
54
41
108

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