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10
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THE ADJUSTMENT OF CUTTING DEVICE
10-1 The specifications for C and PC type
1.
Needle bar stroke
････････
31mm
2.
Upper knife stroke
･･･････
5.5mm
3.
Cutting size
･････････････
16~44mm
4.
Finishing size
･･･････････
8~20mm
10-2 Lubrication
Fall a few oil drops sometime.
10-3 Adjustment of cutting width
a.
Remove the base cover of the knife also open the
front cover and side cover.
b.
Remove the upper knife shaft’s cover A.
c.
Loosen B screw on the support presser foot located
on the front presser foot, C screw on upper knife
bracket. And push the lever D up for lifting the
front presser foot.
d.
Loosen the screw L on the stationary knife bracket
E then adjust the stationary knife position by
dialing the screw F according to the scale on the
front needle plate. After that tighten the screw L
temporary.
e.
Turn the hand pulley to position the needle bar at
the bottom of its stroke.
f.
Touch the upper knife I with stationary knife G,
then tighten up the screw on the upper knife
bracket C after place the point of the upper knife I
in 0.5mm higher than the stationary knife G.
g.
Loosen the screw on the stationary knife bracket
base E for adjustment to have some space between
the stationary knife bracket J and the stationary
knife bracket base E and more the stationary knife
bracket J and the stationary knife bracket supporter
K for cutting fabrics well after that re-tighten the
screw on the stationary knife bracket E.
h.
The support
presser foot B
positioned
1mm from the
upper knife.
15
B
B
L
L
X
X
s
s
e
e
r
r
i
i
e
e
s
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