MX6000 Air Conditioning

riptides · Jul 3, 2023

Our MX seems to not be cooling properly. Cab model. LOL. Dealer said all was well. Noticed a water leak on the drivers right side up by air vent.

What is under the roof as far as parts go? What do the drains tie into? And how best to inspect and clear if plugged?

5030 · Jul 3, 2023

Depends on the year. A few years ago Kubota moved all the mechanical stuff under the seat but on mine, it's all under the roof panel, ac evaporator, heating heat exchanger and blowers. If yours is like mine and you get water dripping, that means the drain's for the ac are clogged with debris. I remove my roof yearly and clean the evap as well as the heater heat exchanger and the drains as well. The drains are via hoses that terminate next to the oil pan on both sides. I spray mine down with Purple Purple Power diluted and carefully hose them out. Amazing the junk that comes out the drain hoses. be apprised however that it's not an easy job to access the coils or the blowers for that matter and it takes 2 people to lift off the roof panel after removing the LONG screws from inside the cab. The short ones retain the headliner and you do not want to remove them, ever.

dusty3030 · Jul 3, 2023

You can see all the diagrams of your tractor on Messick's site. Also keep in mind a cab tractor has a ton of glass on top of the fact you are sitting on top of a hot transmission and right behind your steering wheel is a hot engine blowing it's hot air right on the firewall. What I'm getting at is a tractor cab is an oven. Tinted windows help a lot. Stick on sound / heat insulation sheets under your floor mat help too. Your AC needs all the help it can get. Make sure your AC filter is clean and use the recirculate to help as well.
Also keep your condenser and any screens on your hood clean as you can. Every little bit helps.

Messicks Parts

riptides · Jul 3, 2023

5030 said:
Depends on the year. A few years ago Kubota moved all the mechanical stuff under the seat but on mine, it's all under the roof panel, ac evaporator, heating heat exchanger and blowers. If yours is like mine and you get water dripping, that means the drain's for the ac are clogged with debris. I remove my roof yearly and clean the evap as well as the heater heat exchanger and the drains as well. The drains are via hoses that terminate next to the oil pan on both sides. I spray mine down with Purple Purple Power diluted and carefully hose them out. Amazing the junk that comes out the drain hoses. be apprised however that it's not an easy job to access the coils or the blowers for that matter and it takes 2 people to lift off the roof panel after removing the LONG screws from inside the cab. The short ones retain the headliner and you do not want to remove them, ever.

I will probably return it to the dealer. I don't have the time to mess with it. And by your note, looks like a two person job. Thanks for the info,

pokey1416 · Jul 3, 2023

Follow this post for a bit. Installing Reflectix might help. I’ve heard window tinting helps too.

What did you do to or on your Kubota today?

riptides · Jul 3, 2023

dusty3030 said:
You can see all the diagrams of your tractor on Messick's site. Also keep in mind a cab tractor has a ton of glass on top of the fact you are sitting on top of a hot transmission and right behind your steering wheel is a hot engine blowing it's hot air right on the firewall. What I'm getting at is a tractor cab is an oven. Tinted windows help a lot. Stick on sound / heat insulation sheets under your floor mat help too. Your AC needs all the help it can get. Make sure your AC filter is clean and use the recirculate to help as well.
Also keep your condenser and any screens on your hood clean as you can. Every little bit helps.

Messicks Parts

All is clean. I get the oven part, but I should not be sweating getting out of this thing. Something is not right.

I saw the parts diagrams, thanks.

dusty3030 · Jul 3, 2023

Agree you shouldn't be hot in it you should be able to stay comfortable. In a full hot sun 90 plus degree day it might not be able to freeze you out, but you shouldn't be hot either if that makes any sense.

sixdogs · Jul 3, 2023

Make sure the cabin filters are clean. Mine weren't and warmed things up. Mine are behind the seat and there are two. Kubota's cool fine if working right. Maybe not in Texas.

5030 · Jul 3, 2023

riptides said:
I will probably return it to the dealer. I don't have the time to mess with it. And by your note, looks like a two person job. Thanks for the info,

I did a thread on here or on OTT (which I no longer frequent), about the exact procedure for not only removing the top, but adding Reflectix and cleaning the heat exchangers. Cannot remember where but I'm sure a search will turn it up. You can do it yourself (which is what I do every spring). Be apprised that your dealer will probably sock it to you on labor. it's not involved but it is a time consuming job.

Hunter1157 · Jul 3, 2023

I did three things to my MX6000 cab that made a world of difference in keeping the cab cooler in the Texas heat. First I tinted all the windows. Then I added sound/heat deadening material all under the seat all the way to the floor. Last I pulled the top, cleaned everything up and added insulation (see pics). I mowed a field for two hours last week at 97* and was comfortable the entire time.