I broke a needle and it ended up under the bobbin

When the needle broke, it could have caused the needle/hook timing to lose its timing. There are web sites and videos that show how to repair it yourself, or you may just want to take it in for service.

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You may have fuzz in your bobbin case or under the plate. If you have canned air, spray it out. Are you using a pre-wound bobbin or one you wound yourself. I've found pre-wounds to be the best. Make sure your thread is pulled thru the bobbin case correctly and your needle up top is threaded correctly too. It's real easy to miss either one. Also, be sure to use a good backing when using fuzzy fabric. What size needle are you using. Too small of a needle may cause this also. For standard embroidery or sewing usually use an 11. Hope maybe this will help. Kindest regards,
Jody

first did you find the broken needle. A lot of times the part that broke off will fall down in your hook assembly and lock up the machine. That is what it sounds like. If its the drop in bobbin the take your needle plate off and check your bobbin case. It probably has popped out of where it should be. Take it out make sure there is nothing in the hook area and put the bobbin case back in. That should fix your probalem

did you find the tip of the needle? Also you may have a nick in the metal where the needle hit and broke.It can catch on other parts and need to be sanded or replaced.One time I had this issue and I found the tiny broken tip under my bobbin case.

Have you checked to be sure the needle is inserted correctly? Try turning it.

Hello

Make sure the needle is facing in the correct direction,stitches don't form, or skip badly when the needle is turned around.

Put the bobbin in the bobbin case (right way around) leaving a 2-3" tail.

Thread the top of the machine correctly, leaving a 3-4" tail after threading the needle.

make certain your bobbin in locked into position in it's case and the thread is coming from the bobbin in the correct direction. When holding my metal bobbin in my hand, the thread pulls counter clockwise before placing it into my front loading bobbin case.

Also check if the needle is not properly installed in the needle bar,the machine is not threaded properly or the machine needs adjustment or repair..

The bobbin case is designed to be removed for cleaning. Take off the needle plate if it is still on the sewing machine. Make sure that the needle and presser foot are fully up. Guide the forked end of the bobbin case under the feed (more or less centered). Then pull the bobbin case under the rim of the position plate. Pull on the side opposite the forked end of the bobbin case. With a small screw driver, turn the lever (at about 10 o'clock on a 12-hour analog clock) towards you. This will lock the bobbin case into place. Make sure that the bobbin case isn't locked too tightly. It still needs to move slightly as the bobbin turns and the needle comes through that plate.

Replace the needle plate and lock it down. Then insert the bobbin and close the slide plate. The manual shows the procedure to remove and replace the bobbin case on the 4562 on page 39. Singer has the manual on the support page: http://www.singerco.com/support/instruction-manuals . The direct link to the manual is http://www.singerco.com/uploads/download/435_5_8_10_16_22_dial.pdf .

I hope this helps.

Cindy Wells
(I hope that the locking lever hasn't broken. That may require a service person to solve the problem. I'm not entirely sure where that lever is connected to the machine. Some Singer part diagrams are here: http://www.singerco.com/support/replacement-parts-chart . The 4562 may use the same diagram as the 4572, http://parts.singerco.com/CPpartCharts/4_4999/4572.pdf .)

It may be as simple as you didnt get the needle pushed all the way up in the needle bar. Get new package of needles and try a new needle and make *sure* it goes up as far as you can push it. the reason I suggest a new pkg of needles is if one is bad in the pkg, they are probably all bad. If that doesnt fix it then the needle bar timing/height is off and need to be repaired/adjusted by a tech.

your needle is too long

I was having the same problem with my machine and finally the spring broke. I couldn't find any parts for this so my husband made me a new spring out of a coke can! LOL!! Anyway, he messed with it for a while and it kept doing it. He figured out that it was not the spring but the other piece under the spring was not pushed up far enough to keep the bobbin case in place so he took a screw driver and pushed it forward toward the bobbin case and now my bobbin case does not move!! And the machine is sewing perfect! At least for now. Anyway, it's not the spring or the thread adjusting screw!