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  1. #1

    Join Date
    Oct 2004
    Posts
    11
    Tractor
    Kubota B7610

    Default Gear Grinding

    I知 interested in feedback on a situation I知 experiencing:

    I have a new 7610 w/MMM and recently purchased a rotary cutter. I found that disengaging the rear PTO (540) caused heavy grinding; specifically, I could not put the PTO gearshift lever in neutral with the clutch depressed. Only after letting the rotary cutter come to a complete stop could I release the clutch w/the gear shift lever in neutral.

    My dealer told me that when operating a rear PTO implement I need to detach the MMM drive shaft. This worked for a short while but I知 now getting grinding again when I put the gearshift lever in neutral.

    Does this seem normal?

    Any advice is much appreciated.

  2. #2
    Veteran Member ccsial's Avatar
    Join Date
    Jun 2005
    Posts
    1,538
    Location
    NorthWest Illinois
    Tractor
    (Kuboto L3400) (Ford 1910 4WD w/FEL) (Deere X748SE) All bought new

    Default Re: Gear Grinding

    It almost sounds like there is an overrunning clutch in there. Ask your dealer if there is.

  3. #3
    Super Star Member RoyJackson's Avatar
    Join Date
    Nov 2001
    Posts
    18,616
    Location
    Bethel, Vermont
    Tractor
    John Deere 4400 MFWD, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements

    Default Re: Gear Grinding

    What RPM are you at when disengaging the PTO?

    If you're doing this at PTO RPM (2600 or so), I'd reduce the engine speed to 1200 RPM...

    If your tractor doesn't have a tach, just throttle down as low as you can.

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