Setting Lever For Stitches In The Eye - Duerkopp Adler 558 Service Instructions Manual

8. Setting Lever for Stitches in the Eye

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The stitches in the eye of the buttonhole can be set denser by pulling
forward the stitch length regulating rail 5.
In the area of the eyes the roller 7 drops in the curved path 9 or the
roller 7 is raised by the curved path 9.
Through the setting lever 1 this causes a reduced or increased
transport advance of the material support plate.
Caution Risk of Injury !
Pull the mains plug before setting.
The setting occurs when the roller 7 is on the straight part of the stitch
length regulating rail 5.
–
Loosen screw 6.
–
Set the setting lever 1 at an angle of about 6° from the vertical to
the back.
–
Tighten screw 6 again.
–
Loosen screws 8.
–
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Set the spring stop 4 so that spring 3 touches the pin 2 and there is
a clearance of 1 mm between spring stop 4 and spring 3.
In this way the setting lever 1 is stabilized in its position during
sewing of the two seam rows.
When the roller 7 runs into the curved path 9 the setting lever 1
moves forward or back.
During this movement sequence the spring stop 4 intercepts the
spring pressure.
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