Long thread cutter
88 Service Instructions 867-M PREMIUM - 02.0 - 02/2017
17.4 Setting point in time for cutting
Fig. 73: Setting point in time for cutting
Proper setting
The threads are cut when the thread lever is at the top dead center (hand-
wheel position 60°).
To set the point in time for cutting off:
1. Tilt the machine head ( p. 16).
2. Open the throat plate slide ( p. 20)
3. Loosen the threaded pins (6).
4. Turn the handwheel until the thread-pulling knife (4) can be swung out
by hand.
5. Swivel the thread-pulling knife (4) forward until the tip of the thread-
pulling knife (4) is right next to the tip of the counter blade (5).
6. Set the handwheel position to 60°.
7. Push the control cam (3) to the left as far as it will go and against the
clamping ring (2).
8. Turn the control cam (3) such that the roller (1) runs up at the contour
of control cam (3) and the widest extent of the control cam is at hand-
wheel position 60° at the highest point.
9. Tighten the threaded pins (6).
10. Check setting:
• Insert the thread into thread-pulling knife (4) and slowly turn the
handwheel.
• Check the handwheel position at which the thread is cut.
11. If necessary, repeat setting steps 1 – 7 until the cut takes place at 60°.
(1) - Roller
(2) - Clamping ring
(3) - Control cam
(4) - Thread-pulling knife
(5) - Counter blade
(6) - Threaded pins
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