Adjusting the thread system
72
Service instructions 967 - 00.0 - 12/2014
10.Mount the thread tensioning plate with the winder on to the machine.
11.Test the winder for correct operation. Check that the winder switches
off when the thread has been wound up to 0.5 to 1 mm below the outer
diameter of the bobbin (4).
If it does not do so, tighten screw (2) or back it off, and repeat the test.
Once the desired result has been obtained, tighten the locknut (3).
13.3 Adjusting the hook-thread guide
Correct setting
The thread tensioning element (4) must be at a distance from the machine
arm such that the bobbin (2) is wound equally at both ends.
If due to the position of the thread tensioning element (4) the bobbin (2)
cannot be wound equally at both ends, the inclination of the hook-thread
guide (3) must be changed to achieve this.
Cover
• Upper right cover ( page 11).
Figure 50: Adjusting the thread tensioner and guide ahead of the winder
WARNING
Risk of injury
Switch off the machine before making adjustments.
(1) - Setscrews
(2) - Bobbin
(3) - Hook-thread guide
(4) - Thread tensioning element
(5) - Screw
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