Ok. It also could be that you are not completing one revolution of the balance wheel whilst holding with your left hand the upper thread coming out of the needle. After you have completed one revolution of the balance wheel pull upwards on your needle thread and it will pull the loop up and this is your bobbin thread.
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Ok. It also could be that you are not completing one revolution of the balance wheel whilst holding with your left hand the upper thread coming out of the needle.
After you have completed one revolution of the balance wheel pull upwards on your needle thread and it will pull the loop up and this is your bobbin thread.
The last time mine did that I found out I had the thread running off the bobbin in the wrong direction.