L2800 Starting Issue

[allenjack]

Starting my Kubota L4400 2010 requires that all the listed safety precautions in effect(clutch, PTO, Seat, HST Rocker) plus the cruise control must be engaged and then disengaged to make it start. This has not always been the case and hopefully nothing else will come along to keep it from starting.

 

[ritschner]

Starting my Kubota L4400 2010 requires that all the listed safety precautions in effect(clutch, PTO, Seat, HST Rocker) plus the cruise control must be engaged and then disengaged to make it start. This has not always been the case and hopefully nothing else will come along to keep it from starting.

The cruise control is mechanical and only moves the HST pedal. When you disengage it, it returns the pedal to a preset center. It appears your HST pedal might not be centering correctly when used normally. The next time try to start it without using the cruise. If it does not crank continue to hold the key in the start position while rocking the pedal back and forth. You should find where the pedal center is.

 

[allenjack]

The cruise control is mechanical and only moves the HST pedal. When you disengage it, it returns the pedal to a preset center. It appears your HST pedal might not be centering correctly when used normally. The next time try to start it without using the cruise. If it does not crank continue to hold the key in the start position while rocking the pedal back and forth. You should find where the pedal center is.

Thanks for the tip. It worked just like you thought. This will ease my mind about the warranty expiring in a couple of months.

 

[garren]

So far, mine has quit acting up so I havent been able to try some of these tests. Heres what has changed though...I took the backhoe off and put on the box blade...which means I havent used the PTO in a while. Could it be that switch? I havent looked for it and its too cold to go out there right now... is it easy to find?
It was mentioned that it could be the ignition switch...I had thought about that too, but a few times I held the key in the start position while stomping the clutch pedal and eventually it cranked... of course that isnt very diagnostic since I was rocking back and forth in the seat and the vibration from stomping the pedal could have closed any faulty connections...I'm still at square one

 

[ritschner]

The PTO switch is right under the lever on the right fender and is easy to see and access from the back of the tractor. The clutch switch is below the pedal between the clutch lever and the floorboard. The clutch switch has a plug on connector that can easily be jumped with a 2 inch piece of wire with male spade connectors attached on each end. The HST pedal switch is under the instrument panel on the ignition switch side. If you look directly in front of the transmission tunnel, under the instrument panel, inside of the brake pedal you will see it. It is lever and rod activated and if you watch it while rocking the HST pedal you can see the way it operates and determine if it is adjusted correctly. The tractor will crank and start without being in the seat as long as the clutch switch is depressed or jumped and the PTO is disengaged, so the seat switch only becomes an issue while trying to move the tractor or use the PTO. Garren, the first thing you should consider is jumping the clutch switch.

 

[thavil]

garren - Check out this old thread http://www.tractorbynet.com/forums/...40-b2400-starting-problem-finally-solved.html and see if it helps your situation.

 

[scnebraska]

Allenjack,

The HST peddle switch turned out to be my problem also. Ritschner's method is the same I used to find my problem. Hope this ends up fixing your problem.

 

[vtsnowedin]

My JD has got fussy when it is cold. Ran through the start the engine checklist in the manual and found that the throttle needs to be up off of slow idle for it to crank. Also tranny needs to be in park and the three point hitch needs to have both levers down. Manual says the clutch has to be pushed in but it doesn't seem to have told the tractor that. Fires right up with the clutch out but not a click if the throttle is all the way back. Funny that it never bothered this summer. Why the hitch needs to be down is a mystery. It might not always be convenient to set down whatever is on the hitch.
Good luck with your puzzle.

 

[garren]

After some time now without issues I believe my problem was the HST switch. It was one of the switches that I hadn't thought about until it was suggested above. When I checked it the first thing I noticed was the protective rubber boot had cracked and was falling apart. Its hard to explain, but it had a piece of the broken rubber rolled up in such a way that it may have been preventing the switch from returning far enough to allow the tractor to turn over. I broke off the pieces of rotted rubber and haven't had a problem since...

 

[BWSSR]

I have seen this on small cars..double check the battery cables at the battery...they get corroded, and loose the contact....they spark inside the cable end and battery, till they are making some contact...then they start...sounds silly, but this has happened to me on a Samurai and a Yota....don't hurt to check.