Performance Check List - JUKI HZL-G Series Instruction Manual

Performance check list

If sewing difficulties occur, make sure the instructions are correctly followed.
If a problem still exists, the reminders below may help solve it.
Case
● The machine stops
sewing suddenly.
(This is in case you can
turn hand wheel by
hand.)
● Sewing machine stops
while sewing. (Hand
wheel is heavy to turn.)
● Sewing machine stops
after sewing some
stitches.
● The machine will not
work even when started.
● The machine will not work
even when start/stop
button is pressed.
(This is in case sewing
light is still on.)
● Needle breaks.
● Loud noise and/or keen
noise while sewing.
● Machine fails to feed
fabrics.
107
Cause (Reason)
● The machine sews at slow speed
continuously.
(The machine has a mechanism to
automatically cut off the power to prevent
the motor from overheating.)
● If the thread gets tangled and/or the
needle is bent, motor will lock and safety
mechanism works instantly and the
sewing machine will stop sewing.
● In case of relatively low room temperature
and/or thread tangling, or in case the
motor got excess load, the safety
mechanism works and the sewing
machine stops so that the machine will
not get hot.
● Presser foot is in up position.
● The needle hits presser foot due to an
installation of incorrect presser foot.
● The needle fell into the hook area and
tried to start.
● Thick material is sewn with a thin needle.
● The needle is not inserted fully.
● The needle setscrew is not securely
tightened.
● The wrong presser foot is used for a
certain pattern.
● Lint or dust has accumulated in the
feed dog.
● Lint or dust has accumulated in the hook.
● The stitch length is set at "0".
● Soft fabrics such as towels are being
sewn.
● The machine is set in drop feed
condition. (the drop feed knob is on the
right side)
Solution
● Turn off the power and wait for a
while (about 10 minutes). The safety
mechanism will be reset and the
machine will return to normal.
● Get rid of cause(s) of thread tangling.
● Check if the needle is bent or not.
* Turn off the power before checking
the needle.
● Leave the sewing machine in the
room so that the sewing machine
adapts itself to the room temperature.
● Get rid of cause(s) of thread tangling.
● Lower the presser foot and start to
sew.
● Use the appropriate presser foot
to the selected stitch pattern.
● Remove the needle from the hook
area.
● Check the combination of fabric,
thread and needle.
● Check the installation of needle.
● Securely tighten the needle
setscrew.
● Check the combination of stitch
pattern and presser foot to be used.
● Clean the feed dog area.
● Clean the hook area.
● When the stitch pattern is
reselected, the machine goes back
to the default setting.
● Set the stitch length to 3 - 5.
● Set the drop feed knob to left side.
Refer-
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