Feed dog
Service Instructions 171/173 - 00.0 - 01/2020 29
5. Tighten the screws of the pusher eccentric (3).
Ensure that the lower shaft is pushed up all the way.
The feed dog must not strike any sides in the throat plate cutouts at
maximum feed length.
Information
Fig. 17: Adjusting the thrust movement of the feed dog (2)
An exception in terms of the settings is the class 171-131110
without linkage shaft and permanently adjustable stitch lengths.
Class 171-131110 can be retrofitted for use on hemming systems.
Keep in mind that the pusher eccentric is set differently for right-hand and
left-hand machines!
Left-hand machine: Slot F ( p. 13)
Set the 1
st
screw in the direction of rotation of the pusher eccentric (3)
such that its lower edge lines up with the upper edge of the gage (2).
Right-hand machine: Slot D ( p. 13)
Set the 2
nd
screw in the direction of rotation of the pusher eccentric (3)
such that its lower edge lines up with the upper edge of the gage (2).
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