audiomagnate
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- Jul 30, 2018
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I went to use my vintage but well cared for Craftsman 42" 917.255580 mower and noticed that the blades wouldn't engage. I looked underneath and saw the belt was in very poor shape so I ordered a replacement belt indicated in the owner's manual, part no. 130969. I checked the length with the worn belt before installation and it was the same as the old one. The new belt slips just like the old one. I have checked all the pulleys and bearings the operation of the moving idler pulley and all is good. It seems a shorter belt would fix the problem but I know that's not a proper fix. I adjusted the retainer on the idler clutch rod to close to its end point, but the belt is still too lose to engage the blade.