White 951 - Page 35

Trouble
Probable
Cause
Correction
Refer
to
threading
instructions
see
page No.
8
and
Improperly
threaded
rethread
machine.
-
Loosen
tension
on
upper
thread
by
turning
thread
Too
much
tension
tension
knob
to
lower
number.
Upper
thread
Starting
with
take
up
in
in-
Always
start
sewing
with
take
up
lever
in
highest
breaking
correct
position
position.
Improper
setting
of
needle
Refer
to
needle
setting
instructions
see page
No. 6.
Bent
or
eye
of
needle
too
sharp
Try
a
new
needle.
Discard
all
blunt
or
bent
needles
and
replace
with
Bent
or
blunt
needle
new.
Tensions
too
tight
See
tensions
adjustment
page
No.
10.
Material
Dull needle
Change
needle.
puckering
j
Stitch
length
too
tong
Reduce
stitch
length.
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