I would like a picture of the inside area of my brothers XL-2600 . The bobbin area .with out the cover

Do you have some pictures of the area involved. I know how to put these things back but I can't think how to explain it to you.. pics might help me show you.

Brother has an outstanding service department, and if you don't have a manual, they should have one. Should have a pic of how it goes together.

I assume you are trying to wind the bobbin. Sounds like the lever is not disengaging the needle head. If you \'ve had the machine a while, you may have the part under the bobbin winding area clogged up with thread lint and gunk. Get a penlight and try to see in the slit that the bobbin holder pokes through. You may need to take the cover off. If you do, then unplug the machine, remove the cover, and move the bobbin winder on and off and watch the other levers attached to it.

try this link for parts
Brother XL2600 Parts

No, it seems like you haven't listened for the click of the bobbin locking in place when you put it in.

have you tried changing the needle? if it's a new needle is it inserted correctly---flat side to the back of the machine---needle push up in inside the needle holder
have you tried cleaning under the needle plate & in the bobbin area for lint or loose threads?
have you checked the bobbin to make sure it's not warped
have you checked the bobbin is inserted correctly?

if you've already tried these things then the last thing that possible is the machine is out of time & needs to be serviced by a repair shop that have the correct tool to time it

All machines have a bobbin case, if you have a drop in bobbin it drops into the bobbin case,

Don't use it. The bobbin cases are designed to work with the specified bobbin size, see if you can track them down on Ebay or through a sewing machine dealer in your area.

change the needle
Clean under needle plate where feed dogs are for lint
Clean bobbin area for lint or loose threads
Rethread machine top thread make sure to get every thread guide
& bobbin
Check tension 3 or 4 is usually good