DURKOPP ADLER Class 271 - Setting the Thread Regulator

6.8 Setting the Thread Regulator
The needle thread quantity required for stitch formation is regulated by the thread
regulator 2.
Only a precisely set thread regulator assures an optimal sewing result.
The setting of the thread regulator depends on the following factors:
–
Stitch length
–
Material thickness
–
Characteristics of the sewing yarn used
With a correct setting the needle thread loop 6 must glide over the hook without excess
and with a light tension.
Caution Risk of Injury !
Turn the main switch off.
Set the thread regulator only with the sewing machine
turned off.
–
Loosen screw 5.
–
Set the thread regulator 2.
The vertcal wire 3, in conjunction with scale 4, serves as a setting aid
(guide value: 2.5).
–
Tighten screw 5.
1 2 3 4 5
6
20