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Short thread trimmer (KFA)
14.5 Adjusting the cutting pressure
Fig. 73: Adjusting the cutting pressure
①
(1) - Thread-pulling knife
(2) - Marking
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:
To adjust the cutting pressure:
1. Swing out the thread-pulling knife (1) until the marking (2) is next to
2. Loosen the screw (4).
3. Place the counter blade (3) in position against the thread-pulling
4. Tighten the screw (4).
5. Check if the setting is now as specified above - if NOT, adjust
Service Instructions D867 e-con - 00.0 - 08/2023
②
• Increased knife wear when the pressure is too great
• Problems in cutting the thread
the cutting edge of the counter blade (3).
knife (1).
the setting again.
③
(3) - Counter blade
(4) - Screw
④
91
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