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Proper setting
The control cam (4) makes direct contact with the set collar (2).
The distance between the widest extent (6) of the control cam (4) and
the roller (1) is no greater than 0.1 mm.
In resting position, the tip of the thread-pulling knife is right next to the tip
of the counter blade.
To adjust the cutoff curve:
1. Tilt the machine head ( p. 18).
2. Open the throat plate slide ( p. 28).
3. Loosen the threaded pins (3).
4. Push the set collar (2) as far as it will go to the left.
5. Tighten the threaded pins (3).
Important
Screw the threaded pins (3) tightly in place on the set collar (2) before you
loosen the threaded pins (5). The set collar (2) and control cam (4) are
both mutually used as a stop and must not be loosened at the same time.
6. Loosen the threaded pins (5).
7. Press the lever (7) against the solenoid (9).
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 screw (8).
12. Turn the thread-pulling knife so that the tip of the thread-pulling knife
13. Tighten the screw (8) such that the lever (7) has no axial play.
14. Loosen the threaded pins (3).
15. Push the set collar (2) to the right as far as it will go and against
16. Check the looping stroke position ( p. 54).
17. Tighten the threaded pins (3).
96
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.
the control cam (4).
Long thread trimmer (LFA)
Service Instructions D867 e-con - 00.0 - 08/2023
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