7.7 Replacing the lower knife
At the change of sewing category it is necessary to replace the throat
plate (can be purchased additionally). Dependent on the width of the
trimmed edge and selected sewing category it is necessary to choose
a suitable bottom knife (1) and the gib (4) for its fixing (see Operating
manual, par. 3.3, tab. 1), and at the same time, it is necessary to
change the cutting knife lateral setting (paragraph 7.4).
In total, every bottom knife has 4 cutting edges, and the edge can be
chosen by turning the knife before it is clamped in the throat plate.
–
Loosen the setting bolt (2) with the Allen key and screw the screw
(3) out.
–
Tip the fixed knife holder (5) around the pin (6) and remove the
fixed knife (1).
–
Insert a new fixed knife in the holder (5), and by means of the
suitable gib (4) held with the screw (3) and by the tightening
screw (2) attach the fixed knife so that its cutting edge is horizontal
and stands out slightly over the throat plate (7).
–
Check the position of the fixed knife (1) and its faultless clamping.
43
EN
Caution!
Danger of injury with knife edge when handling.
5143
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