Operation Manual

NOTES
ON
THE
MOTOR
The
normal
operating
speed
of
this
sewing
machine
is
1,500
sitches
per
minute,
which
is
quite
fast
compared
to
the
normal
operating
speed
of
300
to 800
stitches
per
munute
(or
the
ordinary
foot-operated
home
sewing
machine.
It
should
be
noted
that
the
motor
of
this
sewing
machine
turns
in
the
opposite
direction
to
the
motor
in
an
ordinary
home
sewing
machine.
‘
The
bearings
in
the
motor
are
made
of
a
special,
sintered
oil-impregnated
alloy
mounted
in
oil-soaked
felt
to withstand
long
hours
of
continuous
operation.
Continuous
operation
of
the
sewing
machine
will
heat
the
motor
and
foot
control
a
little,
but
not
enough
to
adversely
affect
its
performance.
The
motor
and
foot
control
are
equipped
with
ventilating
holes,
which
must
not
be covered
with
cloth
or paper
during
use.
When
the
motor
is
running,
sparks
can
be
seen
through
the ventilating
hole
in
the motor
bracket
on
the
side
opposite
the
pulley.
These
sparks
are
produced
by
the carbon
brushes
and
the
commutator,
and
are
of
no
signiticance.
For
U.K.
Safety
regulations
for
domestic
sewing
machines
in conformity
with
“CEE
Publication
No.
10,
Part
II,
Section
C, Article
7.1”.
When
the machine
is
not
in
use,
or when
threading
or
replacing
needle
or
blades,
the
machine
must
be
disconnected
from
the
power
supply
by
removing
the
plug
from
the
wall
socket.
Use
bulbs
designed
for
max.
15
W
(wattage).
The
machine
has
an
interference
suppressor
tor
radio
and
television,
complying
with
Directive
No.
7hi889
E.E.C.
and
C.l.S.P.R.
CAUTION
WHEN
THREADING,
REPLACING
NEEDLE
OR
BLADES,
OR
WHEN
MACHINE
IS
NOT
IN
USE,
IT
IS
RECOMMENDED
THAT
THE
ELECTRIC
SUPPLY
PLUG
IS
DISCONNECTED
TO
AVOID
ANY
POSSIBLE
HAZARDS.
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5
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