Question about Simplicity SE3 Computerized Sewing Machine

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Needle doesnt hook bobbin thread while sewing

On my SE3 while sewing the needle doesnt grab the bobbin thread. What could cause this. My manual does not say to oil or even where to oil at. Please help.

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Re: Needle doesnt hook bobbin thread while sewing - Simplicity SE3 Computerized Sewing Machine Sewing Machines

Where is the upper tensio spring?

Posted on Dec 14, 2009

Re: Needle doesnt hook bobbin thread while sewing

Our machine had the same problem, there was a piece of broken thread stuck in the upper tension spring keeping the tension spring open. removing the broken thread in the upper tension solved the problem for us

Posted on Mar 21, 2007

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My bobbin thread won't come up with the needle. so, I can't sew. how do I fix it

First, make sure the needle is installed correctly. Then when you thread through the needle, it should go through the hole so that the thread basically lies inside the groove that runs down the side of the needle. These two steps are critical to being able to pick up the thread properly!! Typically the thread feeds from the left side or some from the front.
Secondly, make sure the bobbin is loaded correctly and firmly attached in place. The thread should just hang off the outside of the bobbin.
Hold onto the upper thread and manually turn the machine through the start of a cycle. When the needle goes into the top plate and down toward the bobbin, a hook should grab the top thread, rotate it about straight down (6 o'clock position) and then release it to grab the bobbin thread. Continue slowly turning the machine manually until you see (hopefully) the thread from the bobbin. Use something thin to pull both threads to the rear, under the foot, and all should be good. When you first start to sew, you might need to hold onto the top thread so it is not pulled out of the needle.
My guess is if you have done all the above, you could have a timing problem that needs to be adjusted at a repair shop.

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The top thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
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5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
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Bent needle, needle inserted wrong can cause problems. On that particular model of brother it uses a plastic rack, or drive assembly to move the sewing hook back and forth. They have a tendency to slip gears, causing the problem you are encountering. Take out the bobbin case and remove the shuttle cover. Put the machine into its back, set at normal center needle position and look to see, by turning the machines handwheel, if the eye of the needle is below or above the hook on the shuttle. If its above the eye....thats the problem.Very, very common on these inexpensive machines.

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the thread hook is not grabbing the thread; it is not turning around and, knoting the needle and, bobbin threads together.
pull the cover off under the bobbin so you can see the hook: it looks like a small disk with a point on it) turn the wheel so that the needle goes down and, see why the hook is missing the thread then: adjust the hook so it just passes through the needle loop when the needle starts back up.

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Turn off the machine and remove the needle.

Lift the presser foot and remove the inner hoop and then the rest of the hoop.

Move the fabric to one side and cut the threads with a seam ripper.

Open the needle plate.

Remove the bobbin and bobbin case.

Clean away any thread or lint in this area.

You should repeat the last three steps routinely as lint and thread snips can accumulate in these area and cause mis-stitching.

Replace the bobbin case, bobbin and needle plate.

Use a new needle.

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i work on this kind of machine all the time.but i have never set one up for this type of material.if i was having this kind of trouble on a machine i would make sure the tension for the thread is not to tight because this can cause it to skip.if the material is real heavy it will push the needle away from the bobbin hook causing it to skip .is the needle depth set right.tilt the machine up and watch the bobbin as you spin the machine by hand.the needle should just start to come up then the hook on the bobbin should grab the thread.the hook on the bobbin should be as close as you can get it to the needle with out touching the needle.try putting some of the material on the machine while you run it by hand and watch needle and bobbin.if you need to adjust the machine their are two bolts on the bobbin block.if you loosen the screws you can move the bobbin closer to the needle. also their is a screw on the needle bar to adjust the needle depth up or down, i hope this will help you out.

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2 Answers

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