10. Loosen all 4 screws (6) on the clamping ring and push the clamping
11. Tighten all 4 screws on the clamping ring (6).
12. Check the loop stroke ( p. 54).
17.3 Setting the counter blade
Proper setting
The thread must be reliably cut using little pressure. The pressure is built
up starting at the marking (2).
Any 2 threads with the greatest strength used for sewing can be neatly cut
simultaneously.
Fig. 69: Setting the counter blade
(1) - Thread-pulling knife
(2) - Marking
To set the counter blade:
1. Turn the handwheel until the thread-pulling knife (1) can be swung out
2. Swing out the thread-pulling knife (1) manually. To do this, press the
3. Insert 2 threads into the thread-pulling knife (1).
4. Turn the handwheel until the cutter swivels down.
5. Check whether the sewing threads have been cleanly cut and pressure
Disturbance
• Increased knife wear when the pressure is too great
• Problems in cutting the thread
86
ring (6) as far as it will go and against the control cam (7).
①
②
after the latch is triggered.
clamp with the roller (3) to the right against the control cam (4).
is built up starting at the marking (2).
Short thread cutter
③
④
(3) - Roller
(4) - Control cam
Service Instructions 1767 - 00.0 - 12/2016