JUKI HZL-G Series Manual page 101

Case
eedle can not e
threaded. (This is in case
needle threader will not
turn.)
he hoo o needle
threader does not go
through the needle ey e.
he needle threading le er
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 ey e.)
he machine will not start
even when start/stop b utton
is pressed.
hread rea s.
Stitch is s ipped.
hread tension is not good.
uc ering occurs.
109
Cause (Reason)
he 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 .)
he needle is not inserted ully.
Hand wheel is turned y mista e while
the needle threading lever is in down
position. (in the process of threading to
the needle.)
he oot controller is plugged in.
he machine is incorrectly threaded.
here is not or nurl on the thread.
he setting o manual thread tension is
incorrect.
he needle is ent or the tip o needle
is b rok en.
he needle is installed incorrectly.
hreading o o in thread is not
correct.
he o in can not turn smoothly
inside the hook holder.
he needle size does not match the
thread.
hread ta e up is not threaded.
he needle thread is threaded in
correctly .
he o in thread is threaded
incorrectly .
he direction o spool cap doesn t
match the spool.
he stitch length is too large on
light-weight f ab rics.
he needle tip is ro en.
Solution
otate the hand wheel and li t the
needle upwards.
hec the installation o the needle.
urn hand wheel slightly away rom
y ou. (to the opposite side when
sewing).
Start/stop utton can unction when
f oot controller is removed.
ethread the machine correctly.
emo e not or nurl rom thread.
d ust thread tension manually
according to f ab rics and thread to
b e used.
hange needle.
nstall needle correctly.
hec the correct way o setting
b ob b in thread.
hec the correct way o winding
b ob b in thread.
hec the com ination o thread
and needle.
ethread the machine correctly.
ethread the machine correctly.
hec the correct way o setting
b ob b in thread.
ttach the spool cap in a correct
direction.
a e the stitch length smaller
(shorter).
hange needle.
Ref er-
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