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    490 John Deere excavator stick boom up becomes jerky

    Good Day I got an older 490 John Deer excavator with a forestry package and a fabtek timber harvester head. The issue I got is when bringing the boom in or lifting it up the stick becomes jerky. Other then that the machine works great. Just wondering if anyone had a quick fix for this...
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    1990 John Deere 490D Excavator four roller Fabtec Harvester Hydraulic issue

    Good Morning, I have an issue with an older John Deere 490D excavator/tree harvester. It was working fine and all of a sudden a few functions would not work, - One track drive motor will not work. - The stick in will not work it will go out but wont come back towards cab. - The feed roller for...
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