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    gotcha3's Avatar
    gotcha3 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 30, 2007, 03:33 PM
    Craftsman 8.5hp chipper/shredder
    Does anyone know how to remove the heavy, castiron impeller from the crankshaft? I have the protective housing removed and can't figure out how the impeller slides off the shaft. Any ideas?
    timsclark's Avatar
    timsclark Posts: 1, Reputation: 1
    New Member
    		  
    #2

    Nov 26, 2008, 02:42 PM
    Take out the bolt in the center. Screw in a 7/16 fine thread bolt (the longest thread you can find) and keep turning. The male end will hit the tapered shaft and push the impeller off.
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #3

    Nov 27, 2008, 09:13 AM

    Hi,
    Cannot easily say sight unseen. Universally you can bet on a bolt in the center securing it to the crank. It will also be keyed, usually 5/32" square stock. There may may also be set screw(s) holding it in place(again 5/32" Allen wrench to loosen if there.) Many manufacturers make some provision for pushing the impeller off, such as a threaded area underneath that bolt in the center. Got a model#?
    Peace,
    Clarke
    barrya's Avatar
    barrya Posts: 1, Reputation: 1
    New Member
    		  
    #4

    May 2, 2009, 03:45 PM
    Thanks for the post Tim. This worked just as you posted. There are no other keepers or square stock of any type on my machine.
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