Singer 7426 timing off

That is not a timing issue--it is a needle height issue. Make sure that your needle is all the way up in the clamp, and the flat part of the needle is away from you.

You can determine if it's all the way up by looking right above the needle clamp. You will see what looks like a grey post. It serves as the stop for the end of the needle, and should be right under it.

Also, I need that you don't have a wing-type needle clamp screw. That means that hand-tightening is not enough to keep the needle in position. After you have tightened it with your fingers, you must use a straight-blade screwdriver to tighten it enough to keep the needle in position during sewing.

Make sure that the area is clean and free of lint. Change the needle and rethread the machine.

Have you tried re-threading it? Remember to keep the presser foot up as you thread so that the tension discs are open. Re-thread the upper thread because it can often cause bobbin jams.
Perhaps your tension discs are blocked, try running a thicker thread through by hand to clean them.
Check there are no broken threads in the bobbin raceway.
Sometimes the wrong size needle upsets the tension.

Perhaps you have bent the needle. Or perhaps you have shifted the bobbin somewhat while removing jammed fabric.

I know that you think that your machine is threaded right, but 99%of the time it is not . You have to make sure that the thread is in discs right, going down the machine . To check it, put your presser foot up, and pull on your top thread, it should move smoothly. Now, put the presser foot down and try it again, it should barely move. Also, put in a new needle, flat side facing to the rear. If, you need a copy of your manual go to www.singerco.com and download it for free. Now, you can enlarge the diagrams of your threading path. Good luck

I think that your should try a new needle, it may be bent or have burr on it. It problem persists call Singer at 1-800-4singer, good luck

the needle probable is bent-has to be replaced so it won't damage the needle bar
if the needle is hitting the needle plate then it needs to be check for burrs, small burrs can snag the fabric

Your problem is a simple one.Jamming is due to thread getting trapped on the bobbin holder.All you need to do is to unscrew two screws holding the the bobbin holder clean the same and reasseble it.your problem will be solved.N.Govindarajan

did you oil moving parts?

This description sounds like the machine is out of time. The needle should match up with a cut out section in the bottom of the bobbin area. If it is hitting, the timing has slipped, probably from sewing on a fabric that was too heavy for the machine.