Question about Singer 7422

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Can't change needle/machine freezes!

Especially when I'm reverse stitching and then switch back to regular stitching, my machine will freeze, all the lights will flash and it will start beeping at me. The needle will jam when it does this. After one instance of this, I was trying to get the needle unjammed so I could remove the fabric and the needle broke. I don't know how to put on a new one! And I lost my manual... :( I tried removing the screw on the back of the needle but it didn't do much good except make the top of the needle visible. I also tried turning the little silver tab to the right of the needle, but it won't loosen in either direction and I don't want to break it more. Any help regarding putting a new needle on my machine, OR any ideas as to make it stop jamming/freaking out and having fits would be greatly appreciated! Thanks, Ana

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Re: Can't change needle/machine freezes!

Hi Ana...To remove/replace needles, loosen the screw on the right side that is attached to the Needle Clamp, which is located at the bottom of the Needle Bar. Your sewing machine should have come with a "kit" that included a small screwdriver. Use this screwdriver, or any compatible screwdriver to loosen the set screw by turning it "towards you" in a counter-clockwise direction. Discontinue turning once the screw is loose, and the needle clamp has a little play on it. While holding your replacement needle in your hand, observe that the top of the needle, which you insert into the needle clamp, has a flat side, and a round side. You want to have the round side facing you, and the flat side away from you to properly insert the needle. Ensure that you continue to apply upwards pressure on the needle until it stops, then finger tighten the Set Screw firmly, but there is no need to clamp down on it. Also observe that with the round side facing you, the majority of the remaining needle has a groove in it. This groove is designed to accomodate the thread as the needle penetrates the fabric, hence creating a hole diameter not in excess of the needle size. As for the physical malfunctioning of your machine I may need more specific information, including whether the beeping is continuous or not. If not continuous, count the number of beeps. If it beeps more than one cycle, count those beep numbers as well, and post the numbers here in chronological order. However, I suspect that the machine is simply running/sewing while you are locking your stitch by hitting the reverse. Normally, hitting reverse while sewing is not an issue, however, if your particular machine has the slightest Feed Dog timing flaw, it can cause needle breakage, fabric bunching, and lockups. So as a test, sew some scraps, and recreate your forward/reverse steps, but this time, do not press or release the reverse unless the machine is at a complete stop, and the needle is in the up position, and free of the fabric. You can manually move your needle vertically by turning the Balance (hand) Wheel located on the right of your machine. Note that should you have to manually turn the wheel to reposition your needle, always turn it in a counter-clockwise direction only......I hope these steps resolve your issues, but please update your post if we still have some work to do.....good luck my friend.

Posted on Aug 03, 2007

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Re: Can't change needle/machine freezes!

I used to have a Huskavarna that would lock up on me because one of the sensors thought the thread was broken. Your machine might need to be cleaned.

Posted on Jan 04, 2008

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