Counter Knife And Thread Pull Knife - Duerkopp Adler 975-1-5 Service Instructions Manual

3.4 Counter Knife and Thread Pull Knife

3 5
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1 2
The clearance of the counter knife 2 to the needle 1 should be 4 mm.
The position of the thread pull knife 3 to the counter knife determines
the knife overlapping and the timing of the cutting.
Caution Risk of Injury !
Turn the main switch off.
Set the thread pull knife and counter knife only with the sewing unit
turned off.
Counter knife
–
Loosen screw 4.
4
–
Set the clearance.
The clearance between needle and counter knife 2 is 4 mm.
2
–
Tighten screw 4.
Thread pull knife
–
6 Turn the handwheel until the thread lever is in its highest position.
–
Loosen screws 5 and 6.
–
Set the position of the thread pull knife 3.
The blades should be overlapped 0.5 mm.
The tip of the thread pull knife should lie centered to the needle.
–
Tighten screws 5 and 6 again.
3