Underthread Puller By Sub-Classes - 211000 And - 241000 - Duerkopp Adler 558 Service Instructions Manual

38. Underthread Puller by Sub-classes - 211000 and - 241000

60
1
2
3
4
5
6
7
The movement of the underthread puller 3 occurs simultaneously with
the cutting movement of the upper thread knife.
The amount of underthread pulled forward assures a secure seam
beginning. It prevents the premature pulling out of the otherwise
tensioned underthread out of the underthread gripper.
The amount of underthread pulled forward must be so set,
–
that the underthread on the one hand is held taut, during the first
stitch at the seam beginning, between hook and needle plate
bottom
–
on the other hand, however, is not yet pulled out of the
underthread gripper during the first stitch.
The amount of underthread 5 pulled off is shown in the photograph.
Caution Risk of Injury !
Pull the mains plug before adjusting.
–
Loosen screws 6 and 7.
–
With the underthread puller 3 touching pin 2 set a clearance of
about 0.5 mm between lever 1 and pin 4.
–
Tighten screws 6 and 7 again.
–
To check the setting tilt the machine head up.
–
Conduct the first stitch by turning the handwheel.
Thereby observe the function of the underthread puller.
If necessary correct the set clearance slightly.