Basic Setting Stitch Adjustment - Dürkopp Adler M-Type 869 Serviceanleitung

2.3 Bottom feed and stitch adjustment gear
2.3.1 Basic stitch adjustment setting
2
8
1
Caution: Danger of injury!
Turn off the main switch.
Only set the basic stitch adjustment when the sewing machine is
switched off.
Standard checking
When the adjustment wheel 5 is set to "0" the stitch adjuster drive 1
must have as little play as possible.
–
Turn the adjustment wheel 5 to stitch length "0".
–
Check the play on the stitch adjuster drive 1.
Correction
–
Unhook spring 2.
–
Fix the adjustment wheel 5 with the spanner 3.
–
Remove screw 4 and remove the adjustment wheel 4.
–
Turn the shaft 7 to the right with a 10 mm open ended spanner
until the stitch regulator lever 1 has a little play as possible.
–
Set scale 6 to "0".
–
Replace adjustment wheel 5 and fix with screw 4.
–
Check the play on the stitch regulator lever 1.
–
Hook spring 2 on again.
7
CAUTION Risk of breaking!
Do not turn the shaft too far to the right.
The stitch adjustment parts may get jammed and the
maximum stitch length of 9 mm or 6 mm will not
be reached.
6 5 4 3