Brother PE-400D sewing- Bobbin casing not turning.

SOURCE: Bobbin won't wind

I have checked the gears underneath and see no missing teeth for the bobbin part. The bobbin "seat" does raise, but does not engage. Thanks

SOURCE: brother PE150

You need to adjust your top tension and maybe your bottom tension ( the little screw on the bobbin cover) Also check your needle and make sure it's straight.

SOURCE: Brother PE-150V bobbin thread

For embroidery, and zig-zag, and because the needle makes side movements, it needs more needle thread.
So try to keep you needle thread not very tight,
and tight up your bobbin case tension more, so that the two threads meet under the meterial.

SOURCE: Elna Primula 410 Bobbin Winding Question

Wind the Bobbin
For the usual jobs, it is the best to use a medium sized thread.
2. Disengage the flywheel by unscrewing the coupling knob as far as it will go.

3. Place the bobbin on the bobbin winder, and push the bobbin winder to the right.

4. Pull out one of the spool pins and place the spool of thread on it.

5. Pass the thread through the bobbin winder tension discs, as indicated.

6. Wind the end of the thread around the bobbin by hand, in the direction indicated.

7. Wind the bobbin, at a medium speed by pressing lightly with a finger on the spool so as to stretch the thread better and thus fill the bobbin to a maximum. The full bobbin stops automatically.

8. Re-engage the flywheel by tightening the coupling knob.

9. Cut the thread and remove the bobbin from the bobbin winder by pushing the latter to the left.

SOURCE: Sears Kenmore Sewing Machine Model 385. 1254180 Bobbin Won't Wind

On some of these machines when the bobbin winder is on it stops the rest of the machine from working. Push the bobbin winder mechanism to the left and see if your machine will work.
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