I have a hard copy of the manual (no PDF) I got from a school. However, The noise your hearing is most likely bearing noise in spin. I have worked on a ton of these. I have to tell you for the age of this machine, I usually junk them. I had one today that went through a power failure, and the touch panel was shorted. I reached in, lifted the inner tub and it had a 1/4 inch of play. Bad bearings too. Hard to get people to put that much money into that old of a machine.