My Hotpoint Aquarius WD61 has always been noisy when spinning, but it surpassed itself yesterday with a crash that sounded as though a car had crashed into the front of my house. Now I can hear what sounds like a loose heavy part clunking when the spin gets to its fastest and when I stopped it there was smoke in the drum. I'm assuming this is bearing trouble. Can these be replaced DIY? If so, how? I'm fairly mechanically minded myself, but have help also. Any diagrams would help. Thanks in advance.