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RbUBLE
SHOOTING
GUIDE
Check
items
below
before
calhng
for
service.
Problem
Cause
Corrective action
Page
CD
Needles
are
bent,
blunt
or
Replace
with
new
needles.
points are
damaged.
17
Insert
the
needles
correctly
to
the
CD
Needles
not
inserted
correctly.
Needles
break
needle
clamp.
17
CD
You
have forcibly
pulled
the
Guide
fabric gently
with
both
fabric.
hands.
CD
Threading
is
incorrect.
Thread
the
machine correctly.
8
9
Thread
©
Thread
tension
is
too
tight.
Reset
the
thread
tension.
11
12
breaks
CD
Needles
not
inserted correctly.
Attach
the
needles
correctly
to
the
needle
clamp.
17
CD
Needles
are
bent,
blunt
or
Replace
with
new
needles.
17
points are
damaged.
Attach
the
needles
correctly
to
©
Needles
not
inserted
correctly.
17
Skipped
the
needle
clamp.
CD
Threading
is
incorrect.
8 9
stitches
Thread the
machine correctly.
1)
Wrong
needles
used.
Use
correct
needles.(HAX
1
or
130
17
/7o5H)
j)
Thread
tension
is
not
correct.
Correct
the thread
tension.
Stiches
are
11
12
irregular
CD
Thread
is
caught.
Check
threading
path
of
each
‘
89
thread.
(j)
Thread tension
is
too
tight.
Correct
the
thread
tension.
11
12
Seam
,
Thread
the
machine
correctly.
&
1
hreading
is
incorrect.
8
9
puckering
Check
threading
path
of
each
CD
Thread
is
caught.
8 9
thread.
CD
i)ifferential
feed
not
set.
Set
differential
feed
to
0.7
24
Fabric
not
CD
Upper
cutter
is
blunt
or
(utting
neatly
wrongly
positioned.
Replace
or
adjust
the
cutter.
18
Fabric
edges
j)
foo
much
fabric
is
within
the
Re-adjust
seam
width.
16
curl
stitch.
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25
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