sears 18hp mower


Old 05-09-01, 01:15 PM
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I have a sears 18hp riding mower with a 46" deck. I now, this year, have a constant "squealing" sound. I assume it is the mower belt, but cannot figure out how to adjust it. the book is useless and sears wants $88 just to come out. it works fine as long as i do not try to cut grass with it. it is a model 917.258685--and the biggest mistake i made two years ago. any ideas on what to look for or do? it cuts grass, but i get a headache listening to the high-pitched squealing.
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Old 05-09-01, 06:44 PM
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Hello: cziembo

It may not be a belt squeal at all. Could be one of the pulleys is loose on it's shaft or the quill pulley on the engines crankshaft.

Usually they loosen just enough to cause a squeal. There will be a hex head set screw or maybe two screws on the quill pulley. Also check the blade adapters. Same condition may apply there.

Another thought is a blade or pulley clutch, belt pulley or bearing.

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