White 762 - Page 30

29
Trouble
Probable
Cause
Correction
Refer
to
threading
instructions
see page
No.
Improperly
threaded
9
and
rethread
machine.
Loosen
tension
on
upper
thread
by turning
Too
much
tension
thread
tension
knob
to
lower
number.
Starting
with
take
up in
Always
start
sewing
with
take
up
lever
in
Upper
thread
incorrect
position
highest
position.
breaking
Refer
to
needle
setting
instructions
see
Imprcper
setting
of
needle
page
No.
6.
Eye of
needle
too
sharp
Try
a
new
needle.
Discard
all
blunt
or bent
needles
and
re
Bent
or
blunt
needle
place
with
new.
Tensions
too
tight
See
tensions
adjustment
page
No.
11
and
12.
Material
-
—
Dull
needle
Change
needle.
puckering
Stitch
length
too
long
Reduce
stitch
length.