Adjustment Of The Extra-Thickness Operating Lever - Duerkopp Adler 271 Service Manual

12.3 Adjusting the extra-thickness operating lever
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2 3 4
Regulation and inspection
If the extra-thickness indicator lever 3 has been set to 8 mm by turning
the knurled knob 2, the pin 6 should be in the hole of the upper guide 7
on sheet 5.
Caution: danger of injury
Turn off the main switch.
Adjust the operating lever with the sewing machine switched off.
Adjustment
–
Set the adjustable extra-thickness stop 1 to 8 mm.
–
Undo locking screw 4 of the operating lever.
Press the extra-thickness indicator lever against the adjustable
extra-thickness stop.
–
Rotate the knurled knob 2 until there is a distance of 1 to 2 mm to
the knurled knob of the adjustable extra-thickness stop.
–
Press the upper guide 7 against stop 5 with the pin 6.
–
Tighten locking screw 4 of the operating lever.
–
Set the extra-thickness indicator lever 3 to 4 mm by turning the
knurled knob and check synchronisation with the feed dog (the
basic stitch-length must also be set to 4 mm).
–
If an adjustment is necessary, proceed as in section 12.1.1.
5 6
7
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