Knife Brackets For Incisions At The Corners - Duerkopp Adler 745-26 Service Instructions Manual

12. Knife Brackets for the Incisions at the Corners
ca. 1-2 mm
Caution Risk of Injury !
Keep hands clear of the area of the corner knives.
The rapidly rising corner knives can cause serious injuries through
cuts.
Conduct setting work with the sewing machine running only while
exercising the greatest possible caution.
Presetting
–
The clearance between the cutting edges of the corner knives in
the knife bracket " seam end " and the forward-lying needles
should be 155 or 190 mm (see sketch).
–
At the seam beginning the knife incisions must end in front of the
first and at the seam end in front of the last stitch (see sketch).
With the flap sewn on this corresponds to the forward edge of the
flap and the rear edge of the flap.
155 mm ( 745-26 )
190 mm ( 745-28 )
–
Turn the main switch on !
Activate the testing programm " Setting the Corner Knife
Adjustment ".
The further operations are described in the Short Description
DAC Chapter 6.3.5.
–
With 745-28 set the angle of the corner knives to straight corners.
–
Lift the corner knives.
At the widest point of the corner knives check the clearance of 155
or 190 mm.
If the clearance is not correct reset the position of the corner
knives (see Chapter 12.1).
59