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  1. #1
    New Member
    Join Date
    Jan 2013
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    5
    Location
    Belgi
    Tractor
    Kioti RX

    Default Kioit Rx Pto shaft breaks

    We recently bougth a nex Kioti Rx with electric PTO start. I used to have a Deutz where you could engage the pto slowly with the clutch. But now it's electric, so it's immediately on full speed. I have put our Peruzzo mower on it and the first thing that broke was the Pto shaft to the mower. I have put a heavy duty PTO shaft and now the transmission in the mower broke. Is there a way to have the Pto speed build up slowly on the Kioti, or do I need an other sytem of Pto Shaft?
    Help me before I have more costs.
    thanks

  2. #2
    Elite Member DT86's Avatar
    Join Date
    Dec 2010
    Posts
    3,455
    Location
    SW VA
    Tractor
    Kubota 9540, RTV 900 and David Brown 885.

    Default

    Welcome!

    Only engage the PTO with the tractor at an idle, then build your RPMs up at a steady pace.

  3. #3
    New Member
    Join Date
    Jan 2013
    Posts
    5
    Location
    Belgi
    Tractor
    Kioti RX

    Default Re: Kioit Rx Pto shaft breaks

    Hi dt86
    even at idle, it goes from 0 to 300 rpm in a blink of an eye, so all the tension is directly on the transmission or pto shaft. isn't there a way to build it up like with a clutch? or is it normal with the electric switch for the pto in Kioti?

  4. #4
    Super Member Gary Fowler's Avatar
    Join Date
    Jun 2008
    Posts
    8,494
    Location
    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: Kioit Rx Pto shaft breaks

    That is normal with all electric switches which is Pizz Poor design but everyone is doing it. All you can do is keep your engine speed as low as possible without stalling. Your tractor should idle at 900 rpm and that shouldnt be 3/5th of your PTO speed. Pull the throttle back as far as it will go and engage the pto. If the engine stalls increase the RPM by 100 and try again. I dont think there is anything else you can do other than swap for a tractor with a clutch operated PTO.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  5. #5
    Veteran Member
    Join Date
    Nov 2011
    Posts
    1,703
    Location
    Central NH
    Tractor
    John Deere 4300

    Default Re: Kioit Rx Pto shaft breaks

    What about some kind of overrun clutch like guys use on the 8N and 9N tractors? Wouldn't that provide some kind of cushion until the implement got up to speed?

  6. #6
    New Member
    Join Date
    Jan 2013
    Posts
    5
    Location
    Belgi
    Tractor
    Kioti RX

    Default Re: Kioit Rx Pto shaft breaks

    Ok, thanks for the help.
    I will first fix the transmission and put a heavy duty pto shaft, and hope it doesn't happen again. I will look if i can go as low as possible on idle, maybe adjust the throttle a bit. Somethings old things are better......

  7. #7
    Platinum Member
    Join Date
    Jun 2004
    Posts
    991
    Location
    Armstrong, BC
    Tractor
    Kioti DK35 SE HST (2011)

    Default

    What is the hp rating for your mower? Perhaps the 60 hp RX is too much for it and adding a stronger driveline will damage other components.

  8. #8
    Veteran Member xring100's Avatar
    Join Date
    Dec 2012
    Posts
    1,189
    Location
    Livingston County, Michigan
    Tractor
    Kubota M8540

    Default

    What about a slip clutch drive shaft might allow some of the shock load to be absorbed in the clutch packs in terms of slipping rather than the other components

    Dave

    Dave

  9. #9
    Veteran Member
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    Nov 2012
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    1,017
    Location
    mansfield,Il
    Tractor
    john deere

    Default Re: Kioit Rx Pto shaft breaks

    I'm not familar with your mower or tractor , but something ain't right . Flail mower , rotary with two big hinged blades , new , used ,how big ? It should stall tractor before it breaks anything . Just trying to help .

  10. #10
    Veteran Member crashz's Avatar
    Join Date
    May 2005
    Posts
    1,097
    Location
    Eastern MA & Upstate NY
    Tractor
    John Deere 770, Bobcat 753

    Default Re: Kioit Rx Pto shaft breaks

    The mower should have a slip clutch at the input shaft. Propperly adjusted, it should absob the shock load momentarily before anything breaks.
    I've had a wonderful evening, but this wasn't it. ~ Groucho Marx

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