Normal or not? I have about 30 hours on the LTX1045 and I just recently greased the old girl, as recommended by the manual. When I was turning the blades by hand to get to the spindle fittings, I noticed the blades squealed (like metal on metal) quite a bit. I looked around and found the squealing to be coming from on top of the deck where the shaft fits through the deck. Concerns or not? If so, what should I do?