Hook not picking the thread

could be the bobbin thread tension is too tight or not out long enough to move around the case
could ne needle and hook timing where the needle and the hook are not in the correct place for the hook to pick up the needle thread
could be the needle in installed incorrectly so the cut away section is not in place to enable the hook to pick up the thread
If you have broken a needle just before the problem it could be the timing has moved and needs resetting
If none of these work for you, take it in to any service shop and have it properly diagnosed

probably needle/ hook timing is out or needle in incorrectly
the groove faces the cotton , the cut in faces the hook of the bobbin case
the eye of the needle has to be just below the hook in the going up position so that it picks the needle thread up to run it around the bobbin case that is to say that at the point when the hook is at the needle , the eye of the needle should be just above than the eye so the hook gets the thread
anyway by seeing both sides of where the needle goes you will see the action

Pick up hook as been knocked out of timing, remove feed dogs cover plate remove shuttle bobbin turn sewing machine in the correct rotation and watch the pickup hook it should be just about to go behind the needle when it's in it's lowest position just as it starts to rise up again the hook should now be behind the needle to pick up the cotton thread, if not get a screw driver and gently prise the pick up hook to it's correct position as mentioned above, this must be done whilst holding the hand wheel of the sewing machine without it moving, normally I would say undo the clamping screws that hold the hook assembly on the shaft but the majority of sewing machine will move back into position quite easily, but please do not prise it from the hook you can usually find and area to do this with out going near the hook once done turn by hand to make sure you have done it correctly as above when satisfied reassemble.
Happy sewing.

double check the timing. The hook must pick up the loop in the needle thread as it starts on its up stroke.
Remove bobbin cover, needle plate etc to expose hook. Turn hand wheel slowly towards you until needle reaches its very lowest point
then continue to turn very slowly until needle comes up about 3/16" in this position the tip of the hook should be exactly behind the needle and just above its eye

Check the needle to see if it is bent. If not then check the needle to hook timing. Turn the hand wheel until the needle is at it's lowest position. Start to bring the needle upward. As the needle gets to the edge of the hook/bobbin race the point of the hook should pass slightly above and behind the needle. If it isn't the timing is out. I would suggest bringing it to a trusted sewing machine repair person to reset the hook timing and check for any other damage.

Is this a result of you having a problem? One of two things

1) You knocked the clutch out, check you manual on locking the timing back in
2) You knocked the timing off enough that the bobbin hook isn't picking the needle thread up.

Look at the bobbin area and slowly spin the hand wheel. Does your bobbin hook move at all? If it is moving look to see if the hook passes the needle just as the needle begins it's upward journey.

Good Luck!
Chris
glfi.com

Hi! You need to make sure the needle is inserted properly.

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.

DO NOT RESET THE TIMING!! The timing is off on maybe 1 in 100 modern Husqvarna machines. For the user to change the timing is turning a simple fix into a complicated and expensive fix.
If the top thread is "looping up on the bottom" then you have a problem with the tension on the top thread. Here is what to check:
1. Thread the machine all the way through the eye of the needle. Don't go under the foot.
2. Pull the tread to the side. While pulling, lower the presser foot. You should see the needle bend as the thread gets tight. If not, you have no tension on the top thread.
3. With the bobbin in the case, hold the needle thread and turn the handwheel to bring the thread up. Watch through the cover to see if the thread passes over the bobbin from left to right. When it gets to the right side, the take up lever should pull the slack out and the thread should be pulled up. If it comes part way across but does not pull up, make sure the thread is in the take up lever. If you never see the thread, remove the bobbin case and turn the hand wheel. You should be able to see the hook pass behind the needle while the eye is still below the level of the hook. If the eye is above the hook as it passes the needle from right to left, then and only then consider timing the machine. If the hook passes above the eye but doesn't catch the thread (bobbin case out, needle plate on, presser foot down) you probably have a problem with your needle. Put in a new needle and make sure that the flat side is to the back.
99% of the time when a Husqvarna is not picking up the bobbin thread, something simple has been overlooked. Your symptom of looping on the back of the fabric indicate either a threading or tension issue in most cases, not timing.