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johnemcn
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Joined: 17 Apr 2007
Posts: 51
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 Posted: Mon Nov 12, 2012 12:35 pm Post subject: JD 4400 cleaning fan |
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I"ve broke 3 cleaning fan shafts in as many years on my 4400. My JD dealer says it"s because the pulley sheaves aren"t together (on fan shaft) when I put on the belt and increase the RPM turning the knob which closes the sheaves on the driver pulley on the countershaft-loads the shaft. I notice some vibration on the countershaft pulley but they say that"s normal. A new countershaft isn"t that expensive but might be hard to remove all the other pulleys off both sides - torching. How much wobble is tolerable?
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old abeski
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| Posted: Tue Nov 13, 2012 4:52 am Post subject: Re: JD 4400 cleaning fan |
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i had same problem on 4420. broke several. neither i nor john deere could get it figured out. i replaced everything, including pulley sheaves. only broke in corn or soys, never wheat.
drove me nuts. sold machine. let me know if u figure it out.
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