Adjust Thread Regulator - Duerkopp Adler 510 Operating Instructions Manual

7.4 Adjust thread regulator

3 2
Caution: Danger of injury !
Switch off main switch !
Adjust thread regulator only when the automatic bartacker
is switched off.
The thread regulator 3 controls the needle thread quantity required for
the stitch formation.
Only a precisely adjusted thread regulator guarantees an optimum
sewing result.
When the thread regulator is adjusted correctly, the needle thread loop
must slide over the thickest spot of the hook with low tension.
–
Loosen screw 1.
–
Change position of the thread regulator 3.
Thread regulator to the left = larger needle thread quantity
Thread regulator to the right = minor needle thread quantity
–
Tighten screw 1.
Adjustment hint:
If the largest thread quantity is required, the thread controller spring 2
must be pulled down by approx. 0.5 mm from its upper end position.
This is the case when the needle thread loop passes the maximum
hook diameter.
1
1
11