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  1. #1
    Bronze Member
    Join Date
    Apr 2007
    Posts
    63
    Location
    Fort Worth,TX
    Tractor
    Kubota L2800 with HST/R4 Tires

    Default L2800 Starting Issue

    My L2800 has recently gotten picky about cranking. I usually have to stomp the clutch pedal several times before it will start to turn over. I thought it might be the switch down at the pedal but that seems to be fine. Is there something else that needs adjusting? Has anyone else had this issue?

  2. #2
    New Member
    Join Date
    Apr 2011
    Posts
    17
    Location
    South Central Nebraska
    Tractor
    Kubota L2800 D HST, L3240 HST-C + BX25

    Default Re: L2800 Starting Issue

    Hi Garren,

    Had a similar problem today. Getting ready for winter, topping everything off with fuel. Filled the other Orange machines and my L2800 D was the last in line. Filled her up and climbed back on to put her back in the shed. Everything was "normal, normal", no PTO no nothing. Pushed the clutch peddle down, twisted the switch and the normal dash lights came on but when I went to the "start" position on the switch, nothing, not even a starter solonoid click. Tried this about a half dozen times then bang, she started right up and ran normally. Each time I did this I once again depressed the clutch, as is necessary to start this gal.

    I'll dig into this problem in a few days and post what I find but for now I'm suspecting the ignition switch itself.

  3. #3
    Super Star Member LD1's Avatar
    Join Date
    Apr 2008
    Posts
    12,023
    Location
    Central Ohio
    Tractor
    Kubota l3400

    Default Re: L2800 Starting Issue

    Is there a clutch safety on the HST models? IE: Do you normally have to press the clutch to start the HST?

    It does sound like a sticking safety though?? Seat, PTO, Gear selector, etc. Maybe stomping the clutch made the seat safety free up and she started????
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."


    Ford 5500 Backhoe
    Kubota L3400GST W/LA463 FEL
    2005 Dodge 3500 4x4 Diesel
    8N Rebuilt and restored
    Bushhog 306
    3 Homemade wood hauling trailers
    Dolmar 6400 84cc ported
    Sachs-Dolmar 120SI Ported
    (4) Sachs-Dolmar 116SI Ported
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    Sachs-Dolmar 117
    Sachs-Dolmar 112

  4. #4
    Super Member
    Join Date
    Sep 2000
    Posts
    6,595

    Default Re: L2800 Starting Issue

    What is the exact symptom? Is it dead silence when you turn the key? That would sound like an electrical interlock. HST peddle center has one, clutch has one and both pto switches have one. The seat may have one too.

    Do the dash lights / head lights go out when you turn the key? That could indicate a bad battery wire or bad battery.

    Luck with it!

  5. #5
    Super Star Member k0ua's Avatar
    Join Date
    Jun 2009
    Posts
    17,894
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: L2800 Starting Issue

    Quote Originally Posted by LD1 View Post
    Is there a clutch safety on the HST models? IE: Do you normally have to press the clutch to start the HST?

    It does sound like a sticking safety though?? Seat, PTO, Gear selector, etc. Maybe stomping the clutch made the seat safety free up and she started????
    Yes the HST model must have the clutch pushed in to crank the tractor.. why not bypass the clutch switch for a while, since you seem to have an intermittent problem and see if the problem goes away. It could be that the clutch safety switch is not making contact intermittently, and this would prove or disprove that theory.

    James K0UA
    James KUA

    Kioti DK35se hydrostat with 2 QA buckets, 48 inch. King Kutter Rotary Cutter. 750 lbs ballast box. Loaded tires, Construction Attachments SSQA Lightweight Pallet forks. EA 50 inch single lid "wicked" Grapple. Satisfied Everlast PA160 welder owner How to add a link to a post . Best way to search TBN


  6. #6
    Super Star Member LD1's Avatar
    Join Date
    Apr 2008
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    12,023
    Location
    Central Ohio
    Tractor
    Kubota l3400

    Default Re: L2800 Starting Issue

    Sound like a clutch safety switch for sure then.
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."


    Ford 5500 Backhoe
    Kubota L3400GST W/LA463 FEL
    2005 Dodge 3500 4x4 Diesel
    8N Rebuilt and restored
    Bushhog 306
    3 Homemade wood hauling trailers
    Dolmar 6400 84cc ported
    Sachs-Dolmar 120SI Ported
    (4) Sachs-Dolmar 116SI Ported
    Dolmar PS540
    Sachs-Dolmar 115i
    Sachs-Dolmar 117
    Sachs-Dolmar 112

  7. #7
    New Member
    Join Date
    Apr 2011
    Posts
    17
    Location
    South Central Nebraska
    Tractor
    Kubota L2800 D HST, L3240 HST-C + BX25

    Default Re: L2800 Starting Issue

    Hi LD1,

    Well, as life happens, I didn't have a chance to look at it yet but maybe tomorrow. So far I am really suspecting the "ignition switch" if we can call it that, you know, the thing you put the key in. :-)

    At the end of the day I topped the fuel off and was going to move her back to the shed, climbed back on board, pushed the clutch peddle fully to the floor and twisted the switch and nothing, absolutely nothing other than the normal dash lights lighting, no starter click, no nothing! Double checked everything else just to make sure I hadn't moved the PTO switch or something stupid like that, checked the turn signals and lights and all appeared to act normally.

    After twisting that darned ignition switch about two dozen times, it nudged the starter once and then about a dozen times later she finally came back to life as if nothing was wrong.

    I'll try to put an indicator of some sort on the starter solonoid tomorrow and go from there. If that shows me nothing then I'll probably add a push botton switch on to bypass the starter (and all other safety switches) and see what happens. Understand, I'm not recommending or even suggesting that you try this but those are my own personal plans.

    Will keep you posted but it may take a few days. Unfortunately that's not the highest priority on my list as I have other tractors if a serious need arises and the snow is going to be here sooner than I'll be ready for it.

    Continued good luck with your fix and yes, I have the full set of "official" kubota manuals for all of my machines but I must confess that I haven't read every page (yet).

  8. #8
    Super Star Member LD1's Avatar
    Join Date
    Apr 2008
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    12,023
    Location
    Central Ohio
    Tractor
    Kubota l3400

    Default Re: L2800 Starting Issue

    I wouldnt start with bypassing everything at once.

    It is unlikely to have more than one safety fail at the same time.

    I'd just take a jumper wire, and jumper them ONE AT A TIME. Starting with the clutch , and then seat safety.

    THat is the crude method of testing safety switches.

    Oh, and you mention thinking that it is a key switch cause NOTHING happens. Well, I cant remember for sure, but I believe that if it is a safety switch, it kills everything. IE: turn the key and no lights come one. Except for the glow plugs if you turn the key backwards I think.
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."


    Ford 5500 Backhoe
    Kubota L3400GST W/LA463 FEL
    2005 Dodge 3500 4x4 Diesel
    8N Rebuilt and restored
    Bushhog 306
    3 Homemade wood hauling trailers
    Dolmar 6400 84cc ported
    Sachs-Dolmar 120SI Ported
    (4) Sachs-Dolmar 116SI Ported
    Dolmar PS540
    Sachs-Dolmar 115i
    Sachs-Dolmar 117
    Sachs-Dolmar 112

  9. #9
    Silver Member ritschner's Avatar
    Join Date
    Aug 2010
    Posts
    141
    Location
    Burnet, TX
    Tractor
    Kubota L2800 HST

    Default Re: L2800 Starting Issue

    The clutch switch can be jumped with a short piece of wire with a spade connector on both ends. On the HST the clutch is only needed for the PTO so mine is permanently jumped. The seat switch is a little more complex so I am including how to test it for the L2800. To jump it you will need to jump the black and orange wire. To check the seat switch you will need a continuity tester. Unplug the seat switch from the wiring harness (there is a tab on the bottom that is hard to see, you may have to release the zip tie). There are three wires on the switch (black blue orange) that terminate in male pins in the connector. With the seat only all the way down there should be continuity between the black and orange wire only. With the seat only up there should be continuity between the black and blue wire only. Anything else and the switch is bad. The other issue on an HST may be that the rocker peddle is not centering correctly due to the colder weather and old lubricant.
    2007 L2800HST, R4's, Rear 3-Point Lever, LA463 FEL W/Shortened Loader lever, Rhino 160 mower, Armstrong Ag box blade, Armstrong Ag rake, Woods RD72 Mower

  10. #10
    New Member
    Join Date
    Apr 2011
    Posts
    17
    Location
    South Central Nebraska
    Tractor
    Kubota L2800 D HST, L3240 HST-C + BX25

    Default Re: L2800 Starting Issue

    Quote Originally Posted by scnebraska View Post
    Hi LD1,

    Well, as life happens, I didn't have a chance to look at it yet but maybe tomorrow. So far I am really suspecting the "ignition switch" if we can call it that, you know, the thing you put the key in. :-)

    At the end of the day I topped the fuel off and was going to move her back to the shed, climbed back on board, pushed the clutch peddle fully to the floor and twisted the switch and nothing, absolutely nothing other than the normal dash lights lighting, no starter click, no nothing! Double checked everything else just to make sure I hadn't moved the PTO switch or something stupid like that, checked the turn signals and lights and all appeared to act normally.

    After twisting that darned ignition switch about two dozen times, it nudged the starter once and then about a dozen times later she finally came back to life as if nothing was wrong.

    I'll try to put an indicator of some sort on the starter solonoid tomorrow and go from there. If that shows me nothing then I'll probably add a push bottom switch on to bypass the starter (and all other safety switches) and see what happens. Understand, I'm not recommending or even suggesting that you try this but those are my own personal plans.

    Will keep you posted but it may take a few days. Unfortunately that's not the highest priority on my list as I have other tractors if a serious need arises and the snow is going to be here sooner than I'll be ready for it.

    Continued good luck with your fix and yes, I have the full set of "official" kubota manuals for all of my machines but I must confess that I haven't read every page (yet).
    Update 12-02-12

    Haven't had a chance to use the 2800 other than to move it to access something else. She started normally (in the daylight) on the move out but wouldn't you know it, when it was dark she just sat there when I hit start and showed the normal dash lights. I did find the quick and dirty work around though. Pull the small black single wire connector out of the starter, it's located a couple of inches forward of the battery cable and jump +12 volts into it. One of the later posts mentioned the direction peddle on the HST. My 2800 is the HST model and so that will be where I look next but it may be due to lack of lubrication and the cooler weather. That was one of the next things on my oh so long "to do" list.

    If and when I find something useful I'll be sure to post it.

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