White 1634 - Troubleshooting Guide

r
TROUBLE
SHOOTING
GUIDE
Check items
below
before
calling
for
service.
Problem
Cause
Corrective
action
Page
1.
Needles
are
bent,
blunt
or
1.
Replace
with
new
needles.
19
points
are
damaged.
2.
Needles
not
inserted
2.
Insert
the
needles
correctly
to
19
Needles
break
correctly.
the
needle
clamp.
3.
You
have
forcibly
pulled
the
3.
Guide
fabric
gently
with
both
fabric
hands.
1.
Threading
is incorrect.
1.
Thread
the machine
correctly.
10
11
Th
k
2.
Thread
tension
is
too
tight.
2.
Reset
the
thread
tension.
13
14
reau
urea
s
3.
Needles
not
inserted
3.
Insert
the needles
correctly
to
19
correctly.
the
needle
clamp.
1.
Needles
are
bent,
blunt
or
1.
Replace
with
new
needles.
19
points
are
damaged.
2.
Needles
not
inserted
2.
Insert
the
needles
correctly
to
19
Skipped
stitches
correctly.
the
needle
clamp.
3.
Threading
is incorrect.
3.
Thread
the
machine
correctly.
10
11
4.
Wrong
needles
used.
4.
Use
correct
needles.
(HAx1
or
19
130/
705H)
1.
Thread
tension
is
not
1. Correct
the
thread
tension.
13
14
Stiches
are
correct.
irregular
2.
Thread
is
caught.
2.
Check
threading
path
of
each
10
11
thread.
1.
Thread
tension
is too
tight.
1.
Correct
the
thread
tension.
13
14
2.
Threading
is
incorrect.
2.
Thread
the
machine
correctly.
10
11
Seam
puckering
3.
Thread
is caught.
3.
Check
threading
path
of
each
10
11
thread.
4. Differential
feet
not
set.
4.
Set
differential
feed
to 0.7
26
Fabric
not
1. Upper
cutter
is
blunt
or
1.
Replace
or
adjust
the
cutter.
20
cutting
neatly
wrongly
positioned.
Fabric
edges
1. Too
much
fabric
is
within
the
1.
Re-adjust
seam
width.
18
curl
stitch.
- 27
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