Singer MC 1507 Instruction Manual page 34

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2 3
GB Raising the bobbin thread
Hold the upper thread with the left hand. Turn the handwheel (1)
towards you (counterclockwise) lowering, then raising needle.
Gently pull on the upper thread to bring the bobbin thread up
through the needle plate hole (2).
Lay both threads to the back under the presser foot. (3)
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