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2.7 Adjustment of needle thread regulator
1-14
3
2
Caution: risk of injury!
Switch off main switch.
Never adjust thread regulator while the main switch is on.
The thread regulator 2 controls the length of thread that is necessary
for a stitch.
Good seams can only be achieved, if the thread regulator is adjusted
to the correct value.
The adjustment of the thread regulator is affected by the following
factors:
–
Stitch length
–
Thickness of sewing material
–
Properties of thread
If adjusted correctly, the needle thread loops easily across the thickest
section of the hook at minimum tension.
–
Loosen screw 1.
–
Adjust position of thread regulator 2.
–
Tighten screw 1.
Hint:
If the regulator is correctly set, the thread tensionging spring 3 is
moved by approx. 1 mm from its top end position. This is the case, if
the needle thread loop passes the section of the hook with the largest
diameter.
1
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