DK5010 just stopped today

[r0bg]

Never thought I’d be here reporting a problem but I was running my DK5010 today and all of a sudden it turned off. It’s a couple years old and has 207 hours. Hoping it was out of gas despite the tank saying it was 1/4 full I added diesel. Didn’t help.

I’d been running it about an hour, pulling my 6’ brush hog. The temp was fine. It just stopped out of nowhere and I have no clue what happened. There were no other clues. No noise, no smoke, no nothing. Just an engine that stopped and would not start again. I had to leave it where it was.

Any ideas what to check first?

 

[Chris616]

Robert,

You'll find all sorts of helpful previous threads by typing into the box near the top right of the page with "Google Custom Search" inside it and clicking the blue magnifying glass button. I used "Kioti stop" and came up with these threads with similar symptoms (but there were others):

https://www.tractorbynet.com/forums/kioti-owning-operating/176091-kioti-dk-45-se-hst.html
https://www.tractorbynet.com/forums/kioti-owning-operating/359118-ck35-hst-engine-stop-solenoid.html

Chris

 

[countrybumpkin]

Well the dk5010 is the new common rail tier 4, so it doesn’t have the stop solenoid and such as the previous models.

Does it crank when you try to restart it, or does it not do anything?

If it doesn’t crank over then likely a safety switch has either been tripped or possibly unplugged.


First thing is to check all the fuses and see if anything obvious has been unplugged such as the seat switch.

 

[r0bg]

It cranks when I try to restart it.

 

[K5lwq]

Have you checked the fuel filter?

 

[r0bg]

My investigation is going to center on looking for anything that could have been pulled loose/destroyed while I was brush hogging. I was running over some pretty tall cane-like growth

 

[JoelD]

Being a diesel and seeing as you didn’t see an overheat situation and didn’t hear anything internally chewing it’s self up my guess would be fuel. I’d unhook the fuel line post filter and see if you get any fuel flow and if you do I’d then check at an injector. I’m guessing fuel flow was killed somehow. If compression you would’ve likely seen or heard something first. Check for oil in coolant but doubtful you lost compression on all cyls at once.

 

[justman777]

When you say turned off, was it just the engine that quit? Still have lights on the dash? If yes on the lights, you likely have a fuel issue as others have stated. I'd change out the fuel filter and start from there.

I had a similar issue on my 2305 once. Turned out to be a bug that had somehow made it into the fuel tank and was blocking the fuel line right at a curve in the fuel line. A bit of compressed air blew him out.

 

[r0bg]

Ok I’m back out here with the tractor today. Checked all the fuses and all the ones I can tell on are good. There are also several big square multi-bladed objects plugged into the fuse box but they’re not see through.

JoelD and justman triple 7 yeah, it just quit like I’d turned off the key. All the lights are on. Everything seems perfectly normal. I even got under it today to make sure nothing got knocked or pulled loose but there isn’t too much under there.

Checking the fuel is a good idea. I’ll do that next.

 

[r0bg]

Ok I feel a whole lot closer. I drained the fuel filter and what seems like a 3-4 tablespoons of diesel-y water came out. Didn’t seem like much but I was hopeful so I went and tried to start it.

It’s been raining and the tractor is sitting in a low spot so there’s a puddle. I heard something dripping into that puddle after I tried starting it. There is a fountain of diesel coming out from somewhere behind the fuel tank. Something is definitely busted and I’ll take a look at it as soon as reconcile with myself that I’m gonna have to lay in 3-4” of soft mud to look for it.

 

[JoelD]

Yikes of all places to crap out. Maybe enough room to lay something down? Can you tow it with something. With luck a line came loose or the like. Good your on the path to fixing.

 

[r0bg]

I was lucky that I thought to save a giant tennis court sized piece of plastic wrap from when the guys put up my metal building. Just rolled it up telling myself this’ll be useful some day. Thank goodness. The bucket had bled down to the ground but I was able to hook to the tow bar and pull it backwards out of the puddle and mud. I cut the grass behind it beforehand so now I have a great work area.

Still in the process of taking it apart. Didn’t anticipate all the tools I’d need. Back in Houston 70 miles away and planning to go back tomorrow to finish getting it apart and lay eyes on what I busted.

 

[justman777]

We've all been there! Best wishes. :thumbsup:

 

[countrybumpkin]

Sounds like you have it narrowed down.

 

[JoelD]

I have a piece of hose that is on my pump not sure but I recall may have been return line? That let go one winter day but machine kept running just left a trail of diesel before I figured out what was wrong. Hoping something equally as simpke

 

[r0bg]

Realized I never followed up here. I ended up heading back the next day and finding the problem. Something had managed to get right up into the fuel line about 4” from where it comes off the tank. Big hole in the hose. I cut off the end and connected a new piece of hose. Then put everything back together and was good as gold. Thanks for all the encouragement!

 

[justman777]

Glad it was something simple! Good case for some type of brush guard on the underside of these machines.

 

[JimR]

Realized I never followed up here. I ended up heading back the next day and finding the problem. Something had managed to get right up into the fuel line about 4” from where it comes off the tank. Big hole in the hose. I cut off the end and connected a new piece of hose. Then put everything back together and was good as gold. Thanks for all the encouragement!

I noticed that fuel hose on my NX4510HST as being a very bad idea if you mow or drive over things. It is a disaster looking for a place to happen. Glad to hear it was a simple fox and not something crazy with such few hours on it.

 

[justman777]

Another good case for putting brush guards on these things.

 

[MinnesotaEric]

I noticed that fuel hose on my NX4510HST as being a very bad idea if you mow or drive over things. It is a disaster looking for a place to happen. Glad to hear it was a simple fox and not something crazy with such few hours on it.

The fuel hose is why I made some skid plates for my tractor. Also, there is this if you need to repair your fuel tank: