Singer 431 Bedienungsanleitung PDF herunterladen (Seite 91)

TO REPLACE THE BOBBIN CASE

Positioning stud

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5. Replace bobbin case so that groove under tension spring fits on hook raceway and fork of case

straddles positioning stud.

6. Push bobbin case holder to left as shown until it snaps down into lock position.

7. Close bed slide and replace throat plate.

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Singer 431 Bedienungsanleitung Seite 91