Bobbin problem sewing machine problem my sew-lite FHSN-505 sewing machine needle has suddenly stoped picking up thread from the bobbin after bobbin has been replaced

Install a brand new needle. A bent/dull/damaged needle sometimes will not pick up bobbin thread.

Check that the needle is installed facing the correct direction.

Also check that the bobbin is wound smoothly, the bobbin is turning the correct direction in the bobbin case, and the bobbin tension is threaded correctly.

If it still will not pick up the bobbin thread, there is most likely a timing issue, ie the needle is arriving at the wrong time to intercept the bobbin thread. Search the internet for sewing machine timing discussions or take it for service.

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no thread on the bobbin

Try installing a brand new needle.


Sewing machine won pick up bobbin thread hook timing fix

Sewing Machine Needle Not Catching Thread

Upper Thread will not pick up Bobbin Thread

Needle not picking up bobbin thread Threads Magazine Gatherings Forum...

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Needs a new needle right way around, most likely. And check the threading on both bobbin and top of the machine. It makes a big difference which way the bobbin turns in the bobbin case.

Needles need to be replaced every 2-8 hours of sewing time, on average, or about 1 needle per garment. A needle that has hit the presser foot or needle plate is "dead", and needs to be replaced to (and eventually, you'll need to buff out the rough spots on the presser foot, and needle plate).

Common causes of skipped stitches (stitching that looks like
_ _______ _ _ _______ _ _____________ instead of _ _ _ _ _ _) or of not picking up the bobbin thread are: dull or damaged needle, needle in backwards, needle not fully up in the needle clamp, needle too small a size for the thickness of fabric, dirty machine, misthreaded machine, and way, way, way down on the list, machine out of time.

Upper thread breaks
needle may be in backwards
Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine
round needle--the groove in the needle should face away from the shaft.
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
upper tension may be to tight
the needle may be bent or damaged
thread may be hanging up in bobbin case--check area for loose threads or lint

the bobbin case does not move, just the bobbin.. if the machine is still under warrenty, I would take it back & get another sewing machine,, and probably not from them

the needle might be bent-roll needle on flat surface & see if it rolls correctly
if the needle is make a popping sound when it goes thur fabric the needle is blunt
check the bobbin area to see if there is lint or loose thread
check to see if the bobbin has become warped
the bobbin may not be inserted correctly in the bobbin case
check to make sure the bobbin case is inserted correctly into the machine
rethread the sewing machine in case the thread is caught somewhere
make sure there is a thread tail of 3-4 inches on both upper thead & lower thread

Check the timing of the needle to the hook. Here is a guide to generic principles of Timing
http://www.sewusa.com/Sewing_Machine_Repair/Sewing%20Machine%20Hook%20Timing.htm
Best Wishes Martyn
Bargain Box in Australia

Try changing your needle

Check the position of the needle. Some machines have to have the needle in a certain way or they won't pick up the thread from the bobbin. Make sure the screw on the bobbin is tight but not to tight you may have to adjust it a few times to get it where it needs to be. Also make sure the bobbin is wound tight