I've had mine for over 15 years, and have come to know its' strengths and weaknesses quite well. An issue that has recently repeated itself has me wondering if anyone else has encountered this problem. Chips are accumulating under the hood. The fan shroud appears to be seating correctly and the blower is working well, it puts out the usual jet stream so I don't think the fan is the issue. The accumulated chips built up to the point of restricting the height adjustment gears and chain. A thorough cleaning out with wire brush and vacuum got the height adjustment working properly again, but after an hour or so of use, I took the hood off to see if all was well, and well, chips are building up again. Anyone else have this problem? Could the plastic fan shroud actually wear out to the point of having a bad seal?