The message is to check and rethread upper thread. It is threaded and correct. I removed the foot plate and the bobbin carriage and slowley turned the wheel to watch what happens. The needle comes down but goes back up before the hook can catch the thread. It is out of time. How do I get it back in time?
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Be sure to install a brand new needle--check that the needle eye is the correct size for the thread you are using--a small needle eye will shred heavy thread. It may also help to remove the top thread from the machine, ALWAYS RAISE the presser foot and rethread from the beginning. Verify the thread path is correct. Try different thread--AVOID old or bargain bin thread. Check that the upper tension is not too tight.
If the top does not pick up the bobbin thread, the machine may be out of time.
Otherwise, there may be a burr or snag somewhere along the thread path that is catching and fraying the thread. Sometimes there is a snag in the bobbin area (possibly the needle plate or hook) that is rubbing the thread.
Have you tried loosening the upper tension? Remove the upper thread, RAISE the presser foot and rethread from the beginning (make sure it follows the correct thread pathway). Sometimes the upper thread jumps out of a thread guide or wraps around something. Or try a different brand of thread? Avoid old or bargain bin threads--use good quality thread. Could also be the incorrect needle for the thread/fabric, ie thread too large for the needle eye.
Install a brand new needle and confirm with the owner's manual that it is inserted properly.
Remove the upper thread. RAISE the presser foot and rethread from the beginning (confirm the thread pathway is correct). Check that the bobbin is threaded properly. Set the upper tension at the midway point between the high & low numbers. Retest.
If it is still not picking up the thread, the needle/hook may be out of time, ie the needle is not arriving at the hook at the proper time to pick up the bobbin thread.
Check the upper tension: Remove the thread. RAISE the presser foot and rethread from the beginning. This ensures the thread is seated properly in the tension disk. Make sure the bobbin case is threaded properly.
If still missing the bobbin thread, it probably has a needle/hook timing issue.
The hook pulls the top thread around the bobbin. Remove the needle plate and turn the hand-wheel toward you while watching the needle. The hook should catch the thread as the needle is on it's way back up. The loop may not form since there is no material or needle plate, but you can see that the needle and hook are in a position for it to happen. This is called "timing".
A simpler answer might be bent needle, wrong needle or needle in backwards, all simple mistakes I have made.
When putting it back together be careful of the black plastic bobbin case as it is often easier to get it out than to get back in correctly.
what you describe is an indication of the needle top thread tension being too loose
make sure that the thread is between the pressure plates of the tensioner and not behind it
next remove the plates around the base at the bit the moves the material through so that you can see when the needle is approaching the bobbin hook
when the needle is at the bottom of the movement, that bobbin hook should be almost at the eye of the needle .
that is called needle position timing
if the hook is not near the eye of the needle or past it then you will have to have the machine serviced and that timing corrected
check the way the need is installed
the cut away bit should be facing the hook and the small groove is where the thread sits so that it does not jam as it goes through the material
Suspect the needle and hook timing is off causing threads not to catch to make a stitch.
Try these troubleshooting tips:
With machine off, remove the bobbin and bobbin case. Push the needle bar to the left. Lower the needle to the bobbin case and notice when the needle starts traveling upward does the tip of the hook in the bobbin area align with the eye of the needle? If it does not align, the timing is off. If it does, move on to check upper tension:
Check that it is threaded correctly (both top and bottom) making sure that the upper thread is in the takeup lever. Watch the needle as you slowly turn the handwheel counter clockwise (toward you) and the needle point touches the fabric (make sure presser foot is down). Is the thread still relatively taunt? If it is loose, the upper thread tension unit does not have enough tension. Check the areas where the thread goes and make sure you remove any loose threads or fluff which could be inhibiting the tension discs from closing over the thread. If the tension unit still is not tightening enough, the tension unit may need to be replaced or the circuit board replaced. If everything is ok in the upper thread area, now look at the bobbin area. With no fabric, watch as the needle enters the bobbin area. Does it go down and the upper thread catch the bobbin thread and pulls it to the surface? Check for anything preventing the bobbin thread from being pulled up to the surface through the needle plate. If you have still not been able to resolve the problem suggest you take it to an authorized husqvarna viking dealer for service. You can locate a dealer near you by visiting the husqvarna viking website and clicking on the Dealer link on the left-hand side of the page - http://www.husqvarnaviking.com Good luck.