Replace The Upper Knife - Bernette b48 FUNLOCK Instruction Manual

a
a
b
b
d
d
68

Replace the Upper Knife

Before replacing the upper knife, disconnect
power line plug from the wall receptacle.
– The upper knife should be changed when it
becomes dull.
– The upper knife can be replaced according to
the directions provided, however if there are any
difficulties experienced, consult your dealer
representative to make the replacement.
C
– Be sure that the power line plug is disconnected
C
from the electric source.
(a)
Open the looper cover and set the upper knife
in the working position.
(b)
Loosen the upper knife set screw
(c)
Remove the upper knife and turn the handwheel
to lower the upper knife holder to its lowest posi-
tion.
(d)
In this position, put a new upper knife in the
groove of the upper knife holder, making sure
that the edge of the upper knife is approximately
0.5–1.0 mm below the surface of the fixed cut-
ting blade.
(b)
Tighten upper knife set screw.
b
b
CAUTION: