Singer 66-1 - Page 9

L
1"4
HINTS
The
Belt.
See
that
the belt
is not too
tight; it
should
always
be
tight
enough
not
to slip.
If
too loose rernove
one end
of
the
hook,
shorten
the
belt
and
rejoin.
To Throw
Off
and Replace
the Belt.
The belt
shifter
is
on
the
stand
at
the
front
of
the band
wheel;
if
the small
lever
is
pressed
over
to
the left
while
the
machine
is
running,
the
belt will
be
thrown
off
the band
wheel.
To replace the belt,
allow
the lever
to spring back
to
its
place
and
run
the
machine as
in
sewing,
with
the
band
wheel
turning
over toward
you.
Machine
Working
Heavily.
If
the machine
runs
hard
after
standing
idle
for
some
time
use
a
little kerosene
or ben
zine
in
the
oiling
places,
run
the
machine
rapidly,
then wipe
clean and
oil.
If it
still
runs
hard
it
is certain
that
some bearing
has
been
over-
Iooked
in
cleaning
and
oiling.
To
.{void
Breaking
Needles.
See
that
the
presser
foot
or
attachments
are securely
fastened
by
the
thumb screw..
Do
not
sew
heavy
seams
or
very
thick
goods
with
too
fine
a
needle. A
large
needle
and
thread
to correspond
should
be
used on
heavy
work.
See
page
28.
See
that
the
needle
is
riot bent
and
avoid
pulling
the material
when
stitchihg,
either
will
cause
the
needle to strike
gn
the throat
plate
and
break.
Breaking
of
Upper
Thread.
If
the upper
thread breaks
it may
be
caused
by:
Improper
threading
of
machine.
Tension
being
too
tight.
The
thread
being
too
coarse
for
the size of the
needle.
The
needle being
bent,
having a blunt
point,
or being
set
incorrectly.
Breaking
of
Under
Thread.
If
the under
thread
breaks
it
may be
caused
by:
Improper
threading
of
bobbin
case-
Skipping
of Stitches.
The
needle
may not
be
accurately
set
into
the
needle
bar
or
the
needle
may be blunt
or
bent,
The
needle
may
be
too small
for
the
thread
in use.
ft
I
INSTRUCTIONS
FOR
USING
A,TTA
CHM
E
NTS
SINGER
SEWING
MACHINE
NO,
66-1
I