6.
Attaching the movable knife
assembly
1.
Align
the
hole
of
the
movable knife 0
with
that
of
the
knife
bar@.
Tighten
the
washer and
bolt
0.
2.
Secure
the
fixed knife e and
the
thread retainer spring @ temporarily <9with
the
two
washers, spring
washers and
bolts
<9
and & .
3.
Check
that
the knife bar @ moves smoothly and easily up and down. Adjust the fixed knife e and
the
thread retainer spring
@)
to
contact
the
movable knife
0.
*
If
the
angle
of
the
thread retaining spring @
is
poor, a thread
will
not
be properly held. Also,
if
the
bolts@ and & are tightened
too
much, the knife operation
will
become
too
heavy.
4.
Attach
the
fixed knife
assembly@)
to
the
face plate
C@
with
the
four
washers, spring washers and bolts
@).
Be
sure
the
cylinder rod
CD
and
the
knife rod
@are
straight and
not
twisted. Also, make
sure
the
cylinder
rod
CD
moves easily and does
not
strike
the
head when moved up and
down
by hand.
*
The
pressure should be adjusted
as
lightly
as
will
cut the thread.
If
the
thread
is
not
cut properly,
increase
the
pressure slightly.
5.
Insert
the
cylinder
sensor
G)
into
the fulcrum clamp
0,
then temporarily tighten
the
screw
of
the
clamp 0
to
adjust the
sensor.
6.
Connect
the
two
air
hoses~
to
the
cylinderS-elbow
CD.
-38-
From the library of: Superior Sewing Machine & Supply LLC
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