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Machine head
4.8.3 Setting 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.
Disturbances caused by an incorrect setting
• Increased knife wear when the pressure is too great
• Problems when sewing if the hook thread clamp is too high
• Problems in cutting the thread
Cover
• Bobbin flap ( p. 21)
Fig. 48: Setting the cutting pressure
(1) - Screw
(2) - Counter blade
(3) - Thread-pulling knife
To set the cutting pressure:
1. Press and turn the hand crank until the thread-pulling knife (3) can be
Service Instructions 911-211 - 02.0 - 10/2016
WARNING
Risk of injury from sharp and moving parts!
Puncture or crushing possible.
Switch off the machine before setting the cutting
pressure.
swung out by hand.
(4) - Screw
(5) - Hook thread clamp
(6) - Screw
64
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