Feeding Foot And Presser Foot; Feeding Foot And Presser Foot Stroke - DURKOPP ADLER 767 Service Instructions Manual

7.2

Feeding Foot and Presser Foot

7.2.1

Feeding foot and presser foot stroke

1
2
4
Caution: Danger of injury !
Switch off main switch.
Check and adjust feeding foot and presser foot stroke only when
sewing machine is switched off.
Standard checking
The strokes of feeding foot 1 and presser foot 2 must be equally high, if
the minimum sewing foot stroke is set.
–
Set stitch length "0".
–
Set medium sewing foot pressure.
–
Set minimum sewing foot stroke (setting wheel in position "min.").
–
Loosen the feed dog.
–
Place a plate (approx. 3 mm) under the sewing foot.
–
Turn handwheel and compare strokes of feeding foot 1 and presser
foot 2.
Correction
–
Remove plastic cover 4 from the arm cover.
–
Turn handwheel.
The sewing foot with the higher stroke must be slightly lifted from
the throat plate.
–
Loosen screw 3.
In case the presser foot had been lifted, it is lowered by the spring.
In case the feeding foot had been lifted, it has to be pressed
downwards manually.
–
Tighten screw 3 again.
–
Check whether both strokes are equally high.
If not, the adjustment has to be corrected.
–
Reinsert plastic cover 4.
The correct feeding motion of feeding foot 1 ensues from the
adjustment of the feeding motion of the feed-dog (see chapter 3.2.4
Feeding motion of the feed-dog). Both motions are generated by the
same eccentric.
3
GB
29