1. Take the Machine Apart
First, unplug your End Cover Making Machine. Take out the bobbin casing, lower the race cover and remove the hook. Take off the presser foot and throat plate.
2. Grab a Brush
Brush out any lint that's built up in the bobbin casing and throat plate.
Most machines come with a small plastic brush, though any anti-static brush or pipe cleaner will work. (You can usually find them at office supply stores.) Skip canned air though: it can invalidate your machine's warranty and push lint further into the machine.
3. Oil the Machine
Check your manual for detailed instructions on if, when and how to oil your machine. (Some are self-lubricating, so if that's the case you can — and should! — skip this step.)
A little oil goes a long way and yes, it's totally possible to over-oil your machine. If that's happened, run some muslin or scrap fabric through the machine until it comes out clean and without oil stains.
4. Reassemble the Machine
Place the hook, bobbin casing and throat plate back in their respective places. Change your needle and reattach the presser foot. Replace the bobbin, thread your machine and you're ready to sew!
If you are interested in end can, welcome to come and purchase!