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Re: Brother PE 400 D threading bobbin problems
Im going to help you as much as i can,,,,try using a bobbin that is already threaded and make sure bobbin is in bobbin case correctly, make sure machine is threaded to instructions in book,,,if this is all done exactly u should not have a problem unless something is jammed
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try changing the needle try rethreading the machine top and bobbin make sure to use every thread guide-this is improtant for the thread tension make sure the bobbin is turned correctly in the bobbin case also could be a problem with the computer motherboard or there could be a problem with the timing
Upper thread breaks
1.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
Or the needle could be in backwards
Correct needle insertion
Correct needle insertion is mandatory for proper use of sewing machine.
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 or if using a 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
2.upper tension may be to tight--try 3 to 5
3.thread may be hanging up in bobbin case--check area for loose threads or lint
Lower thread breaks
The most probable cause of lower thread breaking is improperly wound bobbin
1.always start with a empty bobbin
Never wind one color over the other
2.choose thread that is identical in color & type as the one to be used for upper threading
3.wind the bobbin evenly across & in layers
4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin
for the top & bobbin thread keep thread tails of 3 to 6 inches long pulled behind the needle before you start sewing
yes,sometimes the thread will get caught on the spool, you might think about getting a extra holder that sets behind the machine to hold those spool's that the thread get caught on, that's what I did.
* Change your bobbin There could be a nick along the edge of your bobbin spool that’s catching your thread as you sew.
Also, before you start to sew a seam, grasp the upper and bobbin thread tails. Hold them back and out of the way as you sew your first couple of stitches. This will keep them from getting caught in your machine. I hope one of these solutions help.
I have a Brother CE 4000 Computer sewing machine. I had the same problem when I first used it. I worked with it several hours but to no avail so I decided to stop and wait until my head clear..
I went back a couple of days later. Reread the manual and started over. I discovered my problem was that I was threading the bobbin wrong. Once I threaded it precisely as the manual stated it worked fine.
So this might be your problem. Make sure that the thread on the bobbin is wind on properly. It should be wound evenly. The bobbin must be threaded precisely as the manual says.
Try rethreading the bobbin and the machine
and see if that help.
The "race" on your machine needs adjusting. Remove the bobbin cover, bobbin, & case. What you have left is the race, it moves when you turn the large wheel on the top right of machine. The needle also moves up and down. There is a hook on the race that catches the needle thread. Try moving the race to the line up with the needle. It may take a couple of trys but it should do the trick. Also clean any threads that may be caught on or arround the race. Hope this helps!
For embroidery, and zig-zag, and because the needle makes side movements, it needs more needle thread.
So try to keep you needle thread not very tight,
and tight up your bobbin case tension more, so that the two threads meet under the meterial.