21
KNIFE
CHANGE
OVER
OPERATION
The
operation and stopping of the knife
are
made by pedaling.
To
operate the knife, pedal the treadle toward A direction (Fig. 34), and
to
stop
it
toward
B direction.
\
Fig.
34
REPLACEMENT
OF
THE
KNIFE
1. To
remove
the
knife,
loosen
the two
screws
(1) and pull
down
the
knife
(2) to
remove
it.
2. To replace a new knife,
turn
the handwheel until the knife lowers to its
lowest
position.
Then, put the
knife
like
the
figure
35,
but
adjust
them
so
that the
clearance
between
the
surface
of
the
needle
plate
(3)
and
the
edge
of the
knife
(2)
is 1
mm
as the illustration on the
figure.
Securely tighten the two screws.
J
1mm
Fig.
35
From the library of: Superior Sewing Machine & Supply LLC
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