Needle Bar Link; Slewing Movement - Duerkopp Adler 745-22 Service Instructions Manual

11.2 Needle Bar Link

11.2.1 Slewing Movement

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For securing the seams the seam beginning and the seam end are
made with stitch condensation and seam bartacking (slewing the
needle bar link) or only stitch condensation.
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Turn seam bartacking on and off by pressing the "
front panel of the control unit. With seam bartacking turned on the
LED above the key is lit.
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By 1.4 mm stitch length in stitch condensation the seam bartacking
is generally turned off.
The slewing of the needle bar link at the seam beginning and seam
end occurs through the cylinder 2.
After the setting of the eccentric axle 4 the seam bartacking plus the
needle transport give a swing range of approx. 3.5 mm.
The slit 7 must lie in the lower semicircle of the eccentric axle 4.
In the idle position of the cylinder 2 (spring return position) the
clearance of the needles (needle thickness Nm 100) to the forward
edges of the needle hole must be 0.2 to 0.3 mm.
The needle transport is forcibly acuated after entry into the material.
The swing timing for the seam bartacking must be moved outside of
the material by setting the synchronizer (see Chapter 10).
" key on the
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