White 4400 Sewing Machine User Manual


 
White
4400
User’s
Manual
________—
Needle
Change
i
q
When
to
Change
The
needle
should
be
changed
whenever
stitching
quality
appears
to
be
substandard,
if
the
needle
feels
rough
or
if
the
needle
appears
to
be
bent
or
damaged
in
any
way.
Different
types
of
needles have
different
expected
life-spans.
Generally,
after
several
hours
of
continuous embroidery
the
needle
should
be
changed.
The
condition
of
the
needle
is
particularly
important
to
the
quality
of
stitching
in
outlines
and
other
detailed
or
precision
areas.
____________________
You
can
check
your
needles
for
suitability
using
these
tests.
Checking
for
a
bent
needle
-
Remove
the
needle
from
the
machine
and
place
it
on
a
flat
surface
with
the flat
edge
of
the
needle
shank
down.
The
needle shaft
should
be
peendicular
to
the
flat
surface.
Checking
for
a
burred
needle
-
Needle
can
develop rough
spots
called
burrs.
A
burred
needle
should
not
be
used,
as
the
burr
can
damage
the
fabric
or
embroidery
thread.
Remove
the
needle
from
the
machine
and
glide
all
sides
of
the
needle
point
across
your
fingernail.
If
the
point
catches
or
scratches
the
surface
of
your
nail,
it
should
be
discarded.
N
If
you
suspect
that
a
needle
is
bad,
remove
it
and
replace
with
a
new
needle.
To
discard
needles
safely,
place
them
in
an
old
pill
bottle
with
a
child
safety
\%