Setting The Cutting Pressure - Dürkopp Adler 867-M PREMIUM Service Instructions Manual

8. Turn the control cam (4) such that its widest extent (6) is at the top,
9. Move the control cam (4) such that the distance between its widest
10. Tighten the threaded pins (5).
11. Loosen the clamping screw (8) on the actuating lever (7).
12. Turn the thread-pulling knife so that the tip of the thread-pulling knife
13. Tighten the clamping screw (8) on the actuating lever (7) such that the
14. Loosen all 4 threaded pins (3) on the clamping ring (2).
15. Push the clamping ring (2) to the right as far as it will go and against
16. Check the loop stroke position ( p. 48).
17. Tighten the threaded pins (3) on the clamping ring (2).

17.3 Setting the cutting pressure

Fig. 72: Setting the cutting pressure
(1) - Screw
(2) - Counter blade
(3) - Hook thread clamp
The shape of the thread-pulling knife (4) automatically creates the required
cutting pressure as soon as the thread-pulling knife (4) and counter blade (2)
make contact.
Proper setting
In resting position, the hook thread clamp (3) makes contact with the thread-
pulling knife (4) without any pressure being applied. Any 2 threads with the
greatest strength used for sewing can be neatly cut simultaneously.
86
next to the roller (1).
extent (6) and the roller (1) is 0.1 mm at most.
is right next to the tip of the counter blade.
actuating lever (7) has no axial play.
the control cam (4).
①
②
③
④
⑥
⑤
(4) - Thread-pulling knife
(5) - Screw
(6) - Screws
Service Instructions 867-M PREMIUM - 03.0 - 05/2017
Long thread cutter