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Cover/chain stitch functions and general operating instructions
Mechanical safety
In addition to the electronic safety features (page 14)
your machine is equipped with mechanical safety features.
The looper cover can only be closed when:
· the position of the conversion arm corresponds to the cover/
chain stitch extension plate or the knife guard (overlock)
· the upper knife is in the raised position when the cover/
chain stitch extension plate is attached.
Upper knife arm
The knives are not used for cover and chain stitch and the
upper knife arm is raised to provide additional space to the
right of the needle.
Raising the upper knife arm:
· (looper cover open)
· Raise the upper knife.
· Loosen the screw (1).
· Press the screw to the left (2), push the arm up (3) and the
screw engages on the right (4).
· Tighten the screw.
Lowering the upper knife arm:
· (looper cover open)
· Loosen the screw and press to the left (5).
· Push the arm down (6) and push the screw to the right (7).
· Tighten the screw.
· Lower the upper knife, making sure it engages.
(Close looper cover.)
Note:
See page 20 for raising and lowering the upper knife.
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2500_DCE_1_englisch_neu 09.10.2007 14:35 Uhr Seite 40
