Are you a person who cleans your serger after every use? I'm more of a it depends on the project. I just finished a project where the serger had to be cleaned many times. Here's my serger where I'm getting ready to clean it for the next project:
A little pile of the synthetic fabric that was my last project. I think I cleaned the machine 4 or 5 times while working on that project. There was a lot of lint produced.
Here are my favorite tools for getting rid of the dusty materials inside the serger - a wool mini dust-it and a paint brush with natural bristles. Yep, that is all. I do not oil the machine every time I clean it.
Here you can see some of the fine fibers on the machine. It is covered inside and outside with this dust.
I start with the mini dust-it to knock out all the large particles. Then, move in with the paint brush and dust inside the machine everywhere I can reach bringing out the little clumps of dust.
Next, I take off the cover and presser foot. Using both the mini dust-it and the paintbrush, I remove as much of the dusty particles as I can see. Then, I put the machine back together.
You can see the little pile of dusty particles that came out of the machine with this cleaning. It is now ready for the next project and so am I.