Thread trimmer (FA)
82 Service Instructions M-TYPE DELTA - 00.0 - 12/2019
13.3 Adjusting the cutting pressure
Fig. 67: Adjusting the cutting pressure
The shape of the thread-pulling knife automatically creates the required
cutting pressure as soon as the thread-pulling knife and counter blade
make contact.
Proper setting
In resting position, the hook thread clamp makes contact with the thread-
pulling knife without any pressure being applied. 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
(1) - Screw
(2) - Counter blade
(3) - Thread-pulling knife
(4) - Cutting pressure marking
(5) - Hook thread clamp
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