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Suspect uneven feed of top thread.

Manual for reference if needed.
https://www.brother-usa.com/-/media/brother/product-catalog-media/documents/2018/04/20/08/38/um_pc_8500_en_194.ashx



Please check the following;
  • This machine has a horizontal spool. Try using a spool cap that is slightly larger than the spool. Verify spool is in proper orientation, and threaded per instruction. See page 19.
  • Embroider foot "Q" is installed per manual instructions. See page 32-33.
  • Feed dogs are down (supposed to happen when automatically table is installed but check and make sure).


There should be no looping of thread on bottom side. This would indicate top thread tension is too loose or uneven feed (spool cap and/or orientation). Suggest you preset tension prior to installing table using normal presser foot and single layer of same fabric and same thread. Select a straight short stitch (machine default) and tension 4. With a single layer of fabric, tension at 4 is likely high and you will see bottom thread loop on top side so slowly reduce tension until bottom thread no longer shows on top, Then switch to embroider setup and test run.

Comment below with results and I'll assist further if need be.

Brother Sewing... | 36 views | 1 helpful votes


Take a look...
http://www.fixya.com/support/t2458810-brother_cs_6000_e1_error_message_presser

Not likely your problem unless you opened your machine.

You might try presser foot lever down with no foot just as a test. If it works without a foot then the optical switch has become misaligned or foreign object

Brother... | 99 views | 0 helpful votes


SADLY WITHOUT IT HERE AND YOU NOT TAKING THE TIME TO TAKE A PICTURE OF IT WE CAN DO NOTHING FOR YOU . KEEP TRYING

Brother Sewing... | 45 views | 0 helpful votes


Order the service manual directly from Brother.

Brother Sewing... | 34 views | 2 helpful votes


Well... the manual doesn't say to lower the feed dogs before installing embroidery unit, but carriage operation is likely no different then free motion which requires feed dogs lowered. So I'd say lower feed dogs.

I didn't find exact model but following is what the Brother site gave me for LB6800...
https://download.brother.com/welcome/doch000184/885v31_v32_v33_om04en.pdf

Brother Sewing... | 33 views | 1 helpful votes


The JX2517 has fixed height feed dogs. There is an optional accessory darning plate (XC6063021) that covers the feed dogs.

Brother Sewing... | 54 views | 1 helpful votes


Are using embroider table?

Suspect uneven feed of top thread from spool. Check that top thread spool is correct orientation and spool cap is larger than spool.

See page B-25.https://download.brother.com/welcome/doch100190/888g00_g02_g04_g05_g06_om03en.pdf

With presser foot up and needle up, select tension 4 and rethread top thread. Then make a long slow steady pull of top thread. It should advance smoothly through needle eye with even tension (no snagging). Now lower foot and again make long slow steady pull of top thread. It should advance smoothly through needle eye. Note difference in no tension (foot up) and tension select 4 (foot down).

Brother Sewing... | 30 views | 0 helpful votes


I don't know your history with this machine so some of the following may seem basic beginner.

Be sure you have the right bobbin. This machine uses a larger bobbin than other Brothers. The manual also indicates some x3817 came with "quick set" bobbin feature for which lower threading is slightly different.

If you need a manual for reference, it's free download from Brother at;

https://support.brother.com/g/b/manuallist.aspx?c=us&lang=en&prod=hf_lx3817eus&flang=English&type3=626&type2=69

Extremely high top thread tension also may cause upper thread looping. You have tension at 3 which should be fine but there may be other issues affecting top tension.

Test top thread tension with needle up, presser foot down and tension at 3. Make a long slow steady pull of the top thread. The thread should advance smoothly through the needle eye with out snagging. Any sudden change in tension is suspect.

You can do a similar test of bottom thread. Bring bottom thread to top. With needle up, foot up, make a long slow steady pull of the bottom thread. Bobbin thread should advance from the hook case/bobbin smoothly with tension similar to the previous top thread test.

In general, the top and bottom tension should be near the same when top thread tension is set at 4. If you find an extreme difference in top/bottom thread tension at 3 then something is amiss. Re-thread per machine instruction.

I suspect top thread has looped around something or there's debris in the bobbin area.

If still a problem comment here with your findings and I or someone will assist further.

Brother Sewing... | 46 views | 0 helpful votes


gee then thread it the old fashioned way , by hand with a needle threader

Brother Sewing... | 25 views | 0 helpful votes


Check that Your printer is properly connected and there is ink in cartridge. Also Check for the paper jam. If every think fine and still its showing same error message read blog Printer in error state.

Brother Office... | 1,351 views | 1 helpful votes


The waste ink chamber is probably full. You could disassemble the machine to remove clean and replace the waste ink pads then reassemble the machine and perform the purge count reset procedure (check google) or save yourself some grief and a heck of a mess and replace the machine.

Brother Office... | 30 views | 0 helpful votes


First thought is top thread is not feeding evenly. Thread must unwind in proper direction and spool cap needs to larger than spool diameter else thread may snag. See manual pages 24+. and proper threading.
https://download.brother.com/welcome/doch000034/nv7075pe757778ug03en.pdf

It may also simply be the top thread tension needs to be increased. Or bobbin thread is not feeding evenly. You might try different thread (top spool), bobbin, and as always... a new needle.

Brother Sewing... | 30 views | 0 helpful votes

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