Ok.....I took everything apart last night. Saw a video on You Tube. Bobbin cover off, large plastic piece slid off, bobbin holder popped right out, took coins to unscrew the two screws holding the metal plate. Took off needle, took off presser foot holder. Totally open. Took brush to inside and scooped out even more lint (between the two cleanings I think there was enough lint to stuff a small toy) took alcohol on q-tip to feed dogs and wiped them down. Put everything back on, even a new needle, a different bobbin of thread, and a different spool of thread. Now it feels tight when I manually move the needle, like it doesn't want to go. I haven't tried sewing yet because it is so tight feeling. Very frustrating!