Question about Singer 7258 Sewing Machine
Basic stitch formation requires the needle to be close enough to the hook for the rotating tip of the hook to pick up the thread. Start with a new needle remove the needle plate and bobbin basket. Inspect your bobbin basket for damage and that it had not slipped out of position in relation to the cushion spring at the lower right side of the hook (5:00 position). Sometimes the cushion spring gets bent and allows the bobbin basket to rotate inside the hook. When this happens the needle may penetrate the bobbin basket and will make a loud noise and not sew. There needs to be about .5 mm of clearance between the bobbin basket and cushion spring to allow a double thread to pass between the gap. Observe if this eliminates the noise. Observe it the tip of the hook passes behind the needle and above the eye of the needle on both sides of the widest Zig Zag stitch. The needle should not bend when the hook passes behind it. Other critical functions to the operation are the timing of the take up lever, feed dogs and clearances. I would suggest taking it in for service if a new needle does not solve the problem.
Posted on Apr 22, 2015
The loud sound suggests that the moving needle and the moving parts of the bobbin system are no longer timed properly>
If this is the case you cannot fix it yourself and I can"t tell you how to do it
A qualified technician can do it>
Sorry I cannot be more help but my layman knowledge does not cover that!!!!!!
Posted on Apr 22, 2015
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Posted on Jan 02, 2017
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