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john deere x320 transmission problem

Posted by kcir none (My Page) on
Sun, May 18, 14 at 18:00

the transmission in my x320 just went out...no power on slopes...800 hours cutting slightly hilly 1 acre...does this seem to be premature failure or normal


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RE: john deere x320 transmission problem

I take it still drives but won't pull a hill? Have you tried changing the trans fluid?


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RE: john deere x320 transmission problem

You have the Tuff Torq K58 trans, it's a K46 with a charge pump addition. Life of a K46 is about 900 hours, slightly better for a K58 I would assume. Heat is the main destroyer of transaxles. Keeping the transaxle fins clean is a must to have it last. See the link attached for how to rebuild a K46, but it is very long (72 pages). Change the fluid may help and is cheap - use 5W50 synthetic motor oil - 2 Qts. Some have had great results just sanding out scratches on the internal parts.

Here is a link that might be useful: K46 rebuild


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RE: john deere x320 transmission problem

I looked at the rebuild post I show above, especially see page 45 post 445 about resurfacing the parts inside. That page also talks about how to change the oil. Read every page and you will be an expert on transaxles. By the way check the simple thing - is the belt slipping?


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RE: john deere x320 transmission problem

  • Posted by kcir none (My Page) on
    Mon, May 19, 14 at 10:41

have changed fluid and belt already....good when flat nothing on slopes.....


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RE: john deere x320 transmission problem

Make sure all the drive belt idler pulleys are free and spinning and that the tensioning mechanism is functioning correctly.

Since you changed the belt, did you use a real JD OEM belt or a pretender? Are you absolutely sure the belt is routed correctly?


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