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16.4 Setting the point in time for cutting
Correct setting
The threads are cut when the thread lever is at the top dead center (hand-
wheel position 60°).
Cover
• Tilt the upper section backwards
• Throat plate slide
Figure 61: Setting the point in time for cutting
Setting steps
1. Loosen the control cam setscrews (4).
2. Turn the handwheel until the thread-pulling knife (6) can be swung out
3. Pivot the thread-pulling knife (6) as far forward until the circle mark is
4. Set the handwheel position to 60°.
5. Push the control cam (3) to the left as far as it will go and against the
74
Important: After doing this, check the position of the knives, since the
counter-blade can easily become warped when the screw is being
tightened.
WARNING
Risk of injury
Switch off the sewing machine before checking and setting the
point in time for cutting.
(
Section 4.4.1 Access to the machine bottom section, page 10)
(
Section 4.4.5 Opening and closing the throat plate slide, page 13)
(1) - Roller
(2) - Hook clamping ring
(3) - Control cam
by hand.
exactly next to the tip of the counter-blade (5).
hook clamping ring (2).
(4) - Control cam setscrews
(5) - Counter-blade
(6) - Thread-pulling knife
Service manual H867 Version 00.0 - 08/2013
Thread cutter
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