3.
Testing
the
Machine
It is
recommended
to
test-run
the
machine
with
needle
thread
and
bobbin
case removed. Before you plug the power lead into the electric circuit,
niake sure that the voltage of the circuit is the same as that indicated on
the
rating
plate of your
sewing
machine,
and ascertain that the
machine
pulley
will
turn
toward
you.
Never
must
the
pulley
turn
in
the opposite
direction
as
this is
bound
to
cause
trouble
in
the
lubrication
system.
The direction of
rotation
of
the
motor
can
best
be checked
before
mounting
the belt. If the
belt
has
been
mounted,
hold the
balance
wheel,
switch on
the motor and tip on the treodle.
From
the jerk of the balance wheel you
can
tell In which direction it will
rotate.
If it
rotates
in the
wrong
direction,
simply
exchange the two wires on the motor terminals.
Start the machine by pressing down the treadle.
Never run Ihe
machine
unless
you have placed a piece of fabric
under
the
presser
foot
or raised the presser
bar.
For
the regulation of the
oil
flow
to the
hook
see
Section
23.
SYSTEM
Photo
3
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