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  1. #1
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    Aug 2006
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    Default B2620 MMM RPM

    What should I run the rpm's at on my B2620 while running a 60inch Mid mower? The dealer said 2500 rpm, slightly lower then what the rear Pto calls for.

  2. #2
    Platinum Member kcender's Avatar
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    Mar 2010
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    Nova Scotia
    Tractor
    GR2120

    Default Re: B2620 MMM RPM

    I run around 2500-2600 with my 54 inch deck.

  3. #3
    Veteran Member oldballs's Avatar
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    Dec 2009
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    Kansas...USA
    Tractor
    Kubota B2620 , Case 448

    Default Re: B2620 MMM RPM

    I run mine ( MMM 60 inch deck) at 2600 - 2800 rpm, but may go check the manual.
    Kubota B2620 HST (2012) Case 448(1983)

  4. #4
    Silver Member Finnster's Avatar
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    Jun 2013
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    164
    Location
    Bucks Co, PA
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    Kubota B2620

    Default Re: B2620 MMM RPM

    Ive been running at 2500 and satisfied on the performance.

  5. #5
    Silver Member
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    Dec 2012
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    Location
    Ohio
    Tractor
    Kubota bx2660 loader mmm back blade woods rotary cutter

    Default Re: B2620 MMM RPM

    The manual says full throttle

  6. #6
    Veteran Member oldballs's Avatar
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    Kansas...USA
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    Kubota B2620 , Case 448

    Default Re: B2620 MMM RPM

    Quote Originally Posted by Maestro71 View Post
    The manual says full throttle
    Yeah, mine reads the same now that i checked it. But I don't mow at full throttle because it doesn't seem necessary to me.
    Kubota B2620 HST (2012) Case 448(1983)

  7. #7
    Silver Member
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    Dec 2012
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    104
    Location
    Ohio
    Tractor
    Kubota bx2660 loader mmm back blade woods rotary cutter

    Default Re: B2620 MMM RPM

    So it's ok to run lower rpms? I just recently started using my mmm and am not a big fan of it so far. Still trying to figure out my yard with it. I just read a post about adjusting the dck for the best performance so that's next. I would rather not run at full throttle if its not a Problem.

  8. #8
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    Aug 2006
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    47

    Default Re: B2620 MMM RPM

    Based on the sound of the engine and mower, 2600rpms seems about right. Its what the dealer recommended, uses less gas, and works well. Full throttle seems a bit much. Of course it is important to lower the throttle all the way down before engage/disengaging the PTO.

  9. #9
    Veteran Member powerstroke444e's Avatar
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    Near Springfield IL
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    mostly orange

    Default

    Quote Originally Posted by oldballs View Post

    Yeah, mine reads the same now that i checked it. But I don't mow at full throttle because it doesn't seem necessary to me.
    Thus the reason I like buying new machines, because you don't know how the pervious owner treated them.
    Reason to run them wide open is the cooling system works better you don't lug the engine which creates more heat and the hydro don't get burned up from lack of cooling or oil flow.
    I have 15+ machines and all are always ran at wide open or rated rpm farm tractors, mowers and trenchers some have over 8,000hrs some are near new with no adverse effects from running wide open.
    If it ain't smokin' it's broken.

  10. #10
    Silver Member Finnster's Avatar
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    Jun 2013
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    Bucks Co, PA
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    Kubota B2620

    Default Re: B2620 MMM RPM

    Quote Originally Posted by powerstroke444e View Post
    Thus the reason I like buying new machines, because you don't know how the pervious owner treated them.
    Reason to run them wide open is the cooling system works better you don't lug the engine which creates more heat and the hydro don't get burned up from lack of cooling or oil flow.
    I have 15+ machines and all are always ran at wide open or rated rpm farm tractors, mowers and trenchers some have over 8,000hrs some are near new with no adverse effects from running wide open.
    I'll have to try it and see how it goes. Can't say mowing has been much of a stress as opposed to some of the other chores like box blading or hauling a big load in the FEL. But if it doesn't hurt and maybe I'll mow a bit faster why not?

    Would help get the blade speed up a bit. That's a big plus.

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