DURKOPP ADLER 878-M PREMIUM, Service Instructions Manual

Page: 34 / 130

Setting the sewing foot
32 Service Instructions 878-M PREMIUM - 03.0 - 10/2019
4. With the sewing foot (4) down insert the Allen wrench (7) into the bottom
screw of the toothed segment (8) and rest it at the bottom against the
shaft of the stepper motor (6) and tighten.
5. Tighten the second screw of the segment (8).
6. If necessary, adjust the correct tooth clearance between the toothing
of the segment (8) and the pinion (5) after the screws (11) have been
loosened by the vertical move of the stepper motor holder (10).
7. Tighten the screws (11).
Sewing foot pressure
The sewing foot pressure is set via the program parameters.
The correct sewing foot pressure depends on the sewing material:
• Lower pressure for soft materials, e.g. fabric
• Higher pressure for durable materials, e.g. leather or laminate
Proper setting
The sewing material does not slip and is correctly transported.
Important
Each time the sewing machine is switched on, the gap between the sewing
foot and the feed dog is adjusted automatically. The gap value is set by the
respective parameter.
No sewing material is allowed under the sewing foot when the machine is
switched on!