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  1. #1
    Member
    Join Date
    May 2006
    Posts
    33
    Location
    South East Louisiana
    Tractor
    2006 Kubota 4330

    Default How to disable PTO safety to run generator

    I will take delivery of a 24Kw pto generator Friday. Has anyone found an easy way to disable the seat safety switch for the pto on a 4330 (or any Grand L)? While I would like to tell the houseguest that comes by to enjoy the a/c during or after a storm that it was his turn to sit on the tractor for a few hours, I don't want to do it myself or throw a bag of rocks on my very comfortable seat.

    Thanks as always,

    Guy
    2006 Kubota 4330-DT, FEL, Woods BB600, Disc, Grader Box and Hyd Top Link
    2003 Dodge Ram 3500, B&W Turnover Ball, Quad Cab

  2. #2
    Super Member
    Join Date
    Sep 2000
    Posts
    6,595

    Default Re: How to disable PTO safety to run generator

    Well, I'm not going to tell you how to disable a safety switch. That would be "bad". Although, my L3410 does not have a seat switch at all. I can't tell you the number of times that I have operated the tractor standing so I could see what I was about to mow over!

    Now, if I were trouble shooting a switch, I would unplug it. Then put an ohm meter on the switch and see if it is normally closed or normally open. If it was normally closed, then unplugging the switch would open it just like when the switch was operated. If it was normally open, then putting a jumper wire from one terminal of the plug to the other terminal on the wire from the tractor would make the switch look like it was engaged, even when it was unplugged.

    Of course, when working on equipment with interlocks, a well placed tie wrap can make a switch stay down...That is done often to trouble shoot equipment.

    I am NOT advocating you to bypass safety devices. You are on your own! I am not accepting any liability for your foolish actions. IF you make the choice, it is your action and your responsibility.

    jb

  3. #3
    Veteran Member Volfandt's Avatar
    Join Date
    Sep 2004
    Posts
    1,879
    Location
    TN
    Tractor
    2004 Kubota BX23, 1966 WheelHorse 856

    Default Re: How to disable PTO safety to run generator

    On my BX23 theres a proceedure to use to operate the rear PTO only. I'm not familure with your model but there may be a bypass built in to your tractor.

    Volfandt
    BX23 w/60" MMM & thumb.
    1966 Wheelhorse 856, Gear drive.
    1966 Wheelhorse 876, HST drive.
    w/50"sickle mower, 36" RDM, snow/grader plow, Alternator welder.

  4. #4
    Super Member
    Join Date
    Dec 2003
    Posts
    7,954
    Location
    NC
    Tractor
    Kubota Grand L3830

    Default Re: How to disable PTO safety to run generator

    On most of the Grand L-30 series tractors you set the parking brake, tilt the seat forward and rest it on the steering wheel and engage the PTO. Tilting the seat forward also prevent rain, snow from gathering in the seat while the unit is powering the generator. In the summer time it prevents the seat from becoming a hot plate to set down on. By-passing safety devices is dangerous in my opinion.

  5. #5
    Gold Member
    Join Date
    May 2004
    Posts
    261
    Location
    Chatt Hills, Georgia
    Tractor
    Kubota B7800

    Default Re: How to disable PTO safety to run generator

    On the B7800 there are two switches activated by the seat. The first is the normal one that kills the motor if the tractor is running and the seat doesn't have weight on it. Safety just in case you fall out. Second switch is activated when you tip the seat all the way forward. This allows you to run the tractor and PTO without having to sit on the seat. I've used this switch to safely run a 3pt. wood chipper, and not so safely add my weight to the PHD while trying to get through the concret hard GA. clay.

    I'm sure the L series has to have a similar switch to allow the PTO to run while the seat is empty. Too many 3pt attachments out there that need the driver down on the ground. I found my second switch while reading through my manual. Always a good idea.

  6. #6
    Member
    Join Date
    Jan 2005
    Posts
    26
    Location
    Keystone Hgts, FL
    Tractor
    L3400 DT FEL

    Default Re: How to disable PTO safety to run generator

    L3400, tip the seat forward. I use that when I am mowing and need to move something quickly. Do not like to leave it for more than hopping on and off real fast.
    FAIRTAX.ORG

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