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2.6 Setting the Thread Regulator
The needle thread quantity required for stitch formation is regulated
with the thread regulator 2.
Only a precisely set thread regulator guarantees an optimal sewing
result.
The setting of the thread regulator is dependent on the following
factors:
Stitch length
Material thickness
Characteristics of the sewing yarn used
With a correct setting, the needle thread loop 6 should glide over the
hook without excess and with a little tension.
Caution Risk of Injury !
Turn the main switch off.
Set the thread regulator only with the sewing unit turned off.
Loosen screw 5.
Set thread regulator 2.
The vertical wire 3 in conjunction with scale 4 serves as a setting
aid (Guideline value: 2.5).
Tighten screw 5.
Setting note:
With a correct setting of the thread regulator the following must apply:
When the thread loop 6 passes the maximum girth of the hook, the
thread controller spring 1 must be pulled approx. 1 mm downward
out of its upper end position.
The 1 mm dimension is a guideline. Dependent on the tension of
the thread controller spring, it can be greater or smaller.
6
1 2 3 4 5
2
9
9


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