Class 271: Cross-Cutter - Duerkopp Adler 271 Service Manual

11. Class 271: cross-cutter

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On sewing machines with this attachment an incision transverse to the
direction of sewing can be made in the material at every 6th stitch.
Regulation and inspection
The cross-cutter should cut reliably with the minimum possible
pressure.
Caution: danger of injury
Turn off the main switch.
The cross-cutter may only be adjusted with the sewing machine
switched off.
On completion of the adjustments the cover must be replaced.
Adjusting the cutting depth
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Undo screws 6.
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Adjust the thrust piece 7 and counter-blade 2.
The tip of the thrust piece 7 and the tip of the counter-blade 2
should be level with the top of the needle plate.
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Retighten screws 6.
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Undo stud bolt 4 and screw 3.
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Adjust bearing block 5.
1
The front of the counter-blade 2 should move towards the operator
and make contact with the needle plate.
When the cutting movement is carried out the tip of the movable
blade 1 should move past the pressure foot and the needle plate at
a minimum distance.
After the adjustment has been carried out the back edge of the
bearing block 5 must once more be parallel to the back edge of the
base plate.
2
This adjustment transverse to the feed direction maximises the
cutting depth. To reduce the cutting depth the bearing block 5 must
be moved to the right.
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Retighten stud bolt 4 and screw 3.
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