White 1425 - The Material Puckers; Breaking Needle

Page46
1
Section
7
•
*
If
trouble
is
still
apparent
in
the
machine,
please
consult
your
nearest
dealer.
•
Do
not
try
to
correct
fault
by
yourself.
PROBLEM
The
material
puckers
English
PROBABLE
CAUSE
Upper
or
lower
thread
tension
too
tight
Stitch
too
long
for
material
Thread
too
thick
Incorrect
threading
of
upper
or
lower
thread
Breaking
needle
CORRECTION
P
12,
P.50
P22
P.20
Needle
not
correctly
inserted
Needle
bent
Needle
clamp
screw
too
loose
Upper
thread
tension
too
tight
Needle
too
fine
for
the
material
Dials
have
been
changed
while
the
needle
was
down
in
the
material
P.?.
P.16
P.18
P.18
P
18
P.12
P.20
P.22