Short thread cutter (KFA)
90 Service Instructions M-TYPE DELTA - 00.0 - 12/2019
10. Release the latch (3).
11. Tighten the screw (5).
12. Check the position of the thread-pulling knife (8) and readjust if
necessary.
14.5 Adjusting the cutting pressure
Fig. 74: Adjusting the cutting pressure
The shape of the thread-pulling knife (1) automatically creates the required
cutting pressure as soon as the thread-pulling knife (1) and counter blade (3)
make contact.
Proper setting
Any 2 threads with the greatest strength used for sewing can be neatly cut
simultaneously.
Disturbance
Disturbances caused by an incorrect setting:
• Increased knife wear when the pressure is too great
• Problems when sewing on if the clamping pressure is too high
• Problems in cutting the thread
To adjust the cutting pressure:
1. Swing out the thread-pulling knife (1) until the marking (2) is next to
the cutting edge of the counter blade (3).
2. Loosen the screw (5).
3. Place the counter blade (3) in position against the thread-pulling
knife (1).
4. Tighten the screw (5).
(1) - Thread-pulling knife
(2) - Marking
(3) - Counter blade
(4) - Hook thread clamp
(5) - Screw
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