DURKOPP ADLER 272-160362 Operating And Fitting Instructions Manual page 34

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3.3 Mounting the stitch regulating unit
3 2
12
1
3 2
Unscrew screws 1 and remove the old stitch regulating unit.
Preparing the stitch regulating unit
- Turn the new pre-assembled stitch regulating unit and push the
enclosed pneumatic hose 3 into the coupling 2.
5
4
Press the three-stage switch S 111 into the upper recess 4 and the
two-stage switch S112 into the lower recess 5.
The switch side marked with 1 a, 1 b must be on the outside .