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17.4 Setting the cutoff position
Proper setting
The default is that the cutoff position is at 65° on the handwheel (thread
lever at top dead center). When the machine is at the 65° position on the
handwheel, the control cam (5) is at its highest point.
Fig. 71: Setting the cutoff position
(1) - Thread-pulling knife
(2) - Marking
(3) - Roller
(4) - Clamping ring
To check the cutoff position:
1. Turn the handwheel to the 0° position (thread lever at top dead center).
2. Loosen the locking latch (8).
3. Swing out the thread-pulling knife (1) manually. To do this, press the
4. Insert a thread into the thread-pulling knife (1).
5. Use the handwheel to turn the machine until the thread is cut shortly
6. Check if the cut was made at the 65° position on the handwheel.
To set the cutoff position:
1. Loosen the threaded pins (6) on the control cam (5).
2. Move the control cam (5) towards the clamping ring (4) until it makes
3. Tighten the threaded pins (6) on the control cam (5) again.
4. Check the position as described above under Proper setting and
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lever (7) with the roller to the right (3) against the control cam (5).
before reaching the marking (2).
contact and correct the position of the control cam (5).
correct the position again if necessary.
Short thread cutter
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(5) - Control cam
(6) - Threaded pins
(7) - Lever
(8) - Locking latch
Service Instructions 1767 - 00.0 - 12/2016
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