CAB version of B-series - the cleaning of air-conditioning unit

[maciek8791]

Hello,

Soon there will be my first year using the B-series with CAB. I used to had some small problems with power steering when tractor was not moving, but they are gone now.

I have just a small issue using it. I have inside the cabin little of this particular fungus-smell which You get also in the car. Then what You usually do, is to change the inside-air filter to a new one and clean the air conditioning evaporator. There is always some water coming from the A/C and being left ont he evaporator, this small "radiator". Then the fungus has a fantastic enviroment to grow - no light and some water. I heard that cadillac use to have a system in few old models, that after switching off the engine, special fan was drying out the evaporator to take for this issue, but of course my Kubota is not a Cadillac

So to summarise, I have to clean the evaporator with A/C cleaner solvent. Did You guys experience similar problem and did it too? My tractor is almost new (only 120 hours) and I did not even removed the hood myself yet, I will do it in next days., so far I just changed the cabin-filter. Do You know if the A/C radiator has good access, so I can clean it?

best regards
Maciej

 

[DVR]

Try this:
BG Products
Frigi fresh

BG Frigi-Fresh(R) | BG Products, Inc.

 

[maciek8791]

Try this:
BG Products
Frigi fresh

BG Frigi-Fresh(R) | BG Products, Inc.

Thanks for the tip, I know BG which is good, I also know Liqui Moly is very good.
TI checked the situation under the hood and I found a lot of old grass on those two nets which are meant to block everything from both radiators. I carefully cleaned them. Now I did some serious research on google an I understand, that the problem could be some dust / mold under the roof of the cabin - in front under the hood there is only the radiator but I need to access evaporator and clean it . I quess I will have to remove the cabin to get there.

 

[Grouse09]

Hoping to help here, so here is what I did. That rotten funk smell cleared up after I changed the filter, but before replacing it, I used the shop vac on “blow mode” and blew backwards from all the cab vents. Huge clouds of dust and soggy schmegma came out.

So now, every time I put fuel in it, I take the thumbs screws out, blow out the filter, and blow out the vents.

This problem was around the 250 hour mark. I now have 600 hours. Still smelling good. You know you have it clean when you smell the rubber matting versus dust, or A/C funk.

 

[maciek8791]

Hoping to help here, so here is what I did. That rotten funk smell cleared up after I changed the filter, but before replacing it, I used the shop vac on “blow mode” and blew backwards from all the cab vents. Huge clouds of dust and soggy schmegma came out.

So now, every time I put fuel in it, I take the thumbs screws out, blow out the filter, and blow out the vents.

This problem was around the 250 hour mark. I now have 600 hours. Still smelling good. You know you have it clean when you smell the rubber matting versus dust, or A/C funk.

Thanks I will do it today, just to understand correctly - You are blowing the air from the empty cabin filter box, so the air is flowing throught vents inside the cabin, correct?

 

[Grouse09]

You can do it that way, but it works better blowing it from each vent orifice out through the empty filter box (inside the cab to outside the cab).

Once you blow from the inside out, you get most of the contaminants out, and don’t have a dust layer in the cab. Then go ahead and blow from the empty filter box (outside to inside), just to ensure you get everything out.

I would do this a few times before messing with A/C recharge, especially if you are having no cold temperature problems with the A/C on.

That filter really picks up a lot of dust. My cab smelled bad and I think it was from an extra sappy burn pile I fed with the tractor forks.

 

[Paystar]

With my vehicles, after I get home after using the AC.....I'll crank the heat and fan up and let everything "dry" a bit before I park. Seems to prevent the bad odours.

 

[TimP]

Hoping to help here, so here is what I did. That rotten funk smell cleared up after I changed the filter, but before replacing it, I used the shop vac on 澱low mode and blew backwards from all the cab vents. Huge clouds of dust and soggy schmegma came out.

So now, every time I put fuel in it, I take the thumbs screws out, blow out the filter, and blow out the vents.

This problem was around the 250 hour mark. I now have 600 hours. Still smelling good. You know you have it clean when you smell the rubber matting versus dust, or A/C funk.

Thanks a lot for that tip. I have a B3000 and I paid my local shop to remove the Cab top and clean the Evaporator. But I'm going to try your technique to see if I can improve things a bit.

I have a persistent diesel odor. Maybe the diesel odor has permeated any old lodged grass/dust in the system ducts.

I'll blow it out and see (smell) if things improve a little.

Thanks again.