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  1. #1
    Bronze Member
    Join Date
    Jun 2001
    Posts
    76
    Location
    Aroostook County, Maine
    Tractor
    Kubota L4300DT

    Default Engine Racing at 540 PTO RPM

    When I set the throttle so that the engine rpm is around 2,400 for 540 PTO rpm it sounds like it's really racing and isn't enjoyable to listen to. Does everyone run the engine this fast or does it depend on which PTO implement you're using?

    Jim in FL


  2. #2

    Join Date
    Sep 2000
    Posts
    1,862
    Location
    The Fabulous Foothills of Northern California

    Default Re: Engine Racing at 540 PTO RPM

    Jim, 2400 RPM is hardly racing. Don't worry about that, 2400 RPM is about right. You will get accustomed to it. All 540 PTO implements should be run somewhere in this PTO speed, while not critical, I generally choose to run mine just under it. Rat...


  3. #3
    Epic Contributor Bird's Avatar
    Join Date
    Mar 2000
    Posts
    37,517
    Location
    Texas

    Default Re: Engine Racing at 540 PTO RPM

    Jim, I don't like the noise, but the machine is built to run like that all day; day after day. Doesn't hurt anything but your ears.[img]/w3tcompact/icons/frown.gif[/img]

    Bird

  4. #4
    Gold Member
    Join Date
    Apr 2000
    Posts
    424
    Location
    Bucks County, PA
    Tractor
    Kubota B2400

    Default Re: Engine Racing at 540 PTO RPM

    It doesn't take long to get used to. Nothing like the sweet sound of engaging the PTO,and bringing the implement up to speed.


  5. #5
    Bronze Member
    Join Date
    Jul 2001
    Posts
    64
    Location
    Henley Brook, Westen Australia
    Tractor
    Kubota L35

    Default Re: Engine Racing at 540 PTO RPM

    Jim, it's perfectly normal, I suggest a good set of ear-muffs.

    Chris


  6. #6
    Platinum Member
    Join Date
    Apr 2000
    Posts
    752
    Location
    Saline, Michigan
    Tractor
    L3700SU

    Default Re: Engine Racing at 540 PTO RPM

    With my B2400 and 6 foot mower, I run the engine about 2150 RPM. If my mower doesn't need all the power at PTO speed then I'm not going to waste the fuel-IMHO.


  7. #7

    Join Date
    Jun 2001
    Posts
    77
    Location
    New York, Dutchess
    Tractor
    Kubota L 3010

    Default Re: Engine Racing at 540 PTO RPM

    Ear muffs with radio is nice for mowing.
    bruce


  8. #8
    Platinum Member
    Join Date
    Aug 2000
    Posts
    681
    Location
    Valrico, FL
    Tractor
    No longer have :-(

    Default Re: Engine Racing at 540 PTO RPM

    I used to run engine rpms around 1800 instead of the 2600 rpm needed for a 540 rpm on the PTO since the mower did not seem to "need" the power. It was recommended that I try it at the higher rpm and found that the mowing job was much cleaner (rotary mower) due to the higher blade speed. Now I always mow at 2600 rpm.

    DaveV

  9. #9
    Platinum Member
    Join Date
    Jul 2001
    Posts
    508
    Tractor
    L3410

    Default Re: Engine Racing at 540 PTO RPM

    Most farmers in my area (eastern South Carolina) run at 2000 - 2200 rpm, and don't seem to have any problems (maybe one would if a real fast rpm, and sharp blades, were critical, such as with grass mowing).


  10. #10

    Join Date
    Aug 2001
    Posts
    472
    Location
    Central NY
    Tractor
    Kubota B7500HSD

    Default Re: Engine Racing at 540 PTO RPM

    I have a MMM on a B7500 - I don't get a good cut unless its around 2200 or so


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