No.
2.
3.
m~
I
m~&~~
Problem
Exam
and
Adjustment
~~~m~~~o
l
©
~!~~n~~~mm·~fi~~.m~•
The
skipping
stitch
of
needle
thread
mrJ~~
o
Check
the
position
of
needle
and
needle
guard
plate. If
there
is
any
problem,
adjust
it
according
to
the
standard
.
14.ijl~tRJ:~~tft2'81'~
•
9.XJ:~~tlli~1'!~
'
i§~J:~~t~~~t
0
The
needle
and
up
looper
didn't
cooperate
well or
the
incorrect
up
looper
position
cause
the
up
looper
skipped.
© m
~
*
~t
n J:
~
~t ~ftC
-g-
R
-rr
& J:
~
~
tfJ
**
•
·
~Dfirc~M
.
t3l:~•m~j~~
o
Check
the
size
of
needle
and
up
loope
r and
the
thread
output
amount
of
up
looper. If there is
any
problem,
adjust
it
according
to
the
I
standard
.
m~~~~tfJmm~§.X~~
~
~fi~mo
Skipped
stitches
or
unraveled
thread
The
needle is too thick.
at
sewing
start
©tiEffltt~~~~tJj\-5!12e'SJ•~t
o
Try
using a needle with a count that is one lower
than the current needle.
2
.u~~m~~
.
s~~l!f~'~
o
The
sewing speed is too fast at the sewing start.
©tiEfflti~~-
0
Use
the slow start feature.
4.
Ill~
-
-------
1-.
g
=--=--
~
=--
lJ
-:-
)
,..-:-
~1'
IE
iii
o
Thread
broken
Incorrect threading.
©nl:~~~~~m~g~o
According to the threading diagram to
re-threadin~
2.
m~t~~:::f'IEiil
o
Incorrect needle installation.
©m~~~mfi
·tiEmfi~~~~~•o
Reinstall the needle to make the need
le
slot face
the operator.
3.
fJ
~
5ltt.H~
::*:
o
The thread tension is too strong.
©i~Hit~~u~~:t.J
o
Adjust the thread tension properly.
4.U~m•~~
o
Bad thread quality.
©~,EF.HI'M
~~
o
Change to use the proper thread.
s.smtt~t~m
0
The
thread is wider than the needle hole.
©
~
~ii~:P
rr~HiUi
~
~t
o
Change to use the proper thread or needle.
-38-
From the library of: Superior Sewing Machine & Supply LLC
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