2004 L4330 no engine power? Won't drive!

[mitchone]

I'm currently having a no engine power in my Kubota. I've owned this tractor since September 2024 so have no idea of its history. It's my first tractor.

It starts no problem and remains running, I can increase the rpm while in gear with absolutely no movement. Not quite absolutely, the wheels do try to budge but no movement.

The problem started yesterday, it started to slow down but still moved, I had to drop the load in my bucket, and park it in a flat area just before the power reduced making it undriveable. This morning it drove for about five minutes before i noticed a reduction in power, about a minute or so later it stopped moving and haven't been able to move it since.

I've checked the oil/hydraulic/air cleaner, all good. I have not checked anything on the fuel side except that I have a full tank of diesel. I'll have to wait until it dries out a bit before trying to bleed any possible air from the fuel lines, replace the fuel filter, etc. I didn't want to work on the fuel stuff in ankle deep mud.

I have no idea how the engine runs, revs up, goes into gear and doesn't move. The only thing I can think of is brakes but since I rarely use the parking brake I definitely didn't leave it on since I was driving it yesterday when the initial loss of power began. I'm at a total loss.

I live in NC but have land in Powhatan VA where the tractor resides, so won't be able to work on it again for a few weeks.

Thanks so much,

Mitch
2004 Kubota L4330

 

[Fedup]

Why do I get the feeling this a dry clutch tractor with a clutch (and/or pedal adjustment) problem? Maybe I'm wrong, so if you mention which transmission your tractor has you might get some more definitive suggestions.

 

[mitchone]

Thanks so much, your message altered my thinking a bit.

I’m not sure what a dry clutch is, however, I suspect what you call dry clutch I call manual transmission. I do have a manual transmission, forward/reverse on the column and a range of 4 speeds to the left of my seat, I also have a high/low lever. I moved it to low and the thing moved. Very slowly, of course. I moved it back to high and it was back to not moving.

DefinItely not fuel at this point,

Thanks,

Mitch

 

[Fedup]

I suggest you start by adjusting your clutch pedal linkage before anything else. The more you try to operate the tractor in this condition the more damage is likely to occur. It may already be too late.

Look at the clutch pedal. It will have a rod connecting it to a lever on the side of the tractor clutch housing. One end of the rod has a clevis threaded on. Remove the clevis pin, loosen the lock nut and unscrew the clevis a few turns. Put the pin back in and push on the pedal with two fingers. You want to see and feel it move about an inch or so before it becomes too hard to move with your fingers. Adjust the clevis until you reach that point. Then try operating the tractor again. If that doesn't help you most likely need a new clutch.

 

[D2Cat]

Mitch, welcome to the forum.

First thing I'd suggest is do not do anything to the fuel system. You said engine starts and runs fine. Because the tractor does not move has nothing to do with the fuel system.

Before doing any adjustments to anything get an owner's manual for your model tractor and study it. Make sure you know what all the levers do, and what to do if they are not doing what they are suppose to do.

 

[North Idaho Wolfman]

You need the OPM (operators manual) you can get a copy of that off Kubota.com and the WSM (aka service manual).
That will explain what the clutch is, how it works, and how to test and or adjust it.