Dürkopp Adler 867-M PREMIUM Service Instructions Manual page 89

Long thread cutter
Disturbance
Disturbances caused by an incorrect setting:
To set the cutting pressure:
1. Open the throat plate slide ( p. 20)
2. Turn the handwheel until the thread-pulling knife (4) can be swung out
3. Loosen the screw (1).
4. Loosen screws (6) on the hook thread clamp (3).
5. Loosen the screws (5).
6. Push the thread-pulling knife (4) to the left until the thread-pulling
7. Tighten the screws (5).
8. Turn the counter blade (2).
 The counter blade (2) lies lightly on the back third of the thread-pulling
9. Tighten the screw (1).
10. Move the hook thread clamp (3).
 The hook thread clamp (3) lies lightly on the back third of the thread-
11. Tighten the screws (6).
12. Perform a function test and correct the setting, if necessary.
Service Instructions 867-M PREMIUM - 03.0 - 05/2017
• Increased knife wear when the pressure is too great
• Problems when sewing if the hook thread clamp is too high
• Problems in cutting the thread
by hand.
knife (4) can pass freely between the bobbin and the nose of the bobbin
housing.
knife (4).
pulling knife (4).
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