White 447 - Maintenance and Care; Cleaning Shuttle Race; Cleaning Feed Dog

MAINTENANCE
AND
CARE
CLEANING
SHUTTLE
RACE
The
stitch
forming
mechanism
occasionally
becomes
clogged
with
loose
thread
and lint
in
the
race
way.
Cleaning
and
removal
of
the
lint
will
safeguard
the
performance.
1.
Raise
needle
to
its highest
position
by
turning
hand
wheel
toward
you.
2.
Take
out
bobbin
case.
3.
Turn
the
two
clamps
(A)
outward
and
remove
shuttle
race
cover
and
shuttle
hook.
4.
Clean
and
remove
all
threads,
lint
etc.
off
the shuttle
race,
shuttle
hook
and
shuttle
race
cover.
5.
Apply
a
drop
of
oil
with
finger
tip
to outer
edge
of
shuttle.
CLEANING
FEED
DOG
1.
Raise
the
needle
and
lift
the
presser
foot.
2.
Lower
the
feed
dog
by
setting
drop
feed
re
gulator
at
DARN”
“position.
3. Remove
the
needle
plate
by
loosening
set
screws.
4.
Clean
the
feed
dog
and
adjacent
areas
with
brush.
5.
Re-set
needle
plate.
—32--
L
.
.
: