Need help on how to remove a Kioti RX7320 A/C Condenser

[SenileTexasAggie]

Recently the A/C in my 2020 Kioti RX7320 quit working. I returned it to the dealership for repair. They determined that an A/C line had ruptured and replaced it under warranty. But the root cause of the rupture was that the A/C condenser was clogged with debris, even though everything looked clean and even though I regularly washed the radiator front and rear. The mechanic said that he had to use a homemade compressed air line to slip between the radiator and A/C condenser to blow out the debris clogging the condenser. I ordered a similar air line from Amazon to use to clean out the condenser. Today I tried to remove the screens and other items covering the A/C condenser but could not figure out how to do so. Does anyone know where I can find a tutorial on what I need to remove (as well as how to remove) to gain access to the back of the A/C condenser?

 

[holeycow]

Dont know how to remove the heat exchanger, but high pressure air can bend the fins to smitherenes. Just so you know. I prefer to use low pressure water from a garden hose with a smaller, more flexible hose on the end. If you can use hot, soapy water, then that is ideal, but a pressure washer will be even worse than high pressure air on the fins.

shine a light through the heat exchanger(s). That will show you if it/they are indeed clean. You should be able to see through several rads at the same time.

make sure you wait for the rads to drain out pretty thoroughly before you start the tractor or the belt(s) will get water on them and slip badly. Make sure the rads are THOROUGHLY dry before you do any work with it or they will plug up with dust BADLY. Perhaps that is what happened to yours as you mentioned you "washed" the rads. I've done exactly that in the past..

The heat exchangers will dry thoroughly reasonably quickly when the tractor is running, stationary in clean air AFTER they self drain. Better to leave it overnight facing into a warm wind after running it for a while.

ps, you don't necessarily need to access the back of the heat exchanger. You can push everything through several rads over some time with a flexible, low pressure garden hose set-up.

oh, and if you have no way of using soapy water through the garden hose, then just spray the rads with soapy water from a spray bottle.

this is the most thorough way to clean rads, but it takes time. The last time I did it, it took a couple of hours to get all of my stack of 3 (4?) rads almost perfectly clean. It would have taken more time to get them perfect. My little makeshift hose will push water straight through the whole rad stack and out the other side with NO fin damage. That's when you know they are clean, when the water gushes through the whole works everywhere as you do every single row/course one by one.

 

[Cougsfan]

Sometimes when it is dark outside you can shine a bright light behind the condenser and evaluate to a very good degree how clogged everything is without removing anything. You should do that before you do anything. You may in good shape from what your dealer did and would be wasting your time removing things. If your condenser is clogged I would guess your radiator and oil cooler (if your tractor has one) is also appreciably clogged.

I have had to detach my condenser, oil cooler and radiator on my Branson to clean them more than once. I would suggest you use common sense and start taking out bolts until you can reposition them adequately for cleaning. You cannot completely remove your condenser without draining the freon and disconnecting the lines. But you don't have to remove it. They are usually connected by flex hoses so you can pull it far enough away to clean it without actually removing it from the tractor. Do be careful with compressed air to avoid bending fins. Depending on what is clogging you fins, water may or may not be useful. If the clogging material is water soluble it will help. If it is not (weed seeds, etc) water may not be as helpful as air. Removing debris from the back to the front with whatever flush medium you use would be advisable.

 

[Midniteoyl]

On my little CK, there are 2 wing nuts on top of the radiator holding the screen in place. I have to remove those, then flip the air cleaner and air intake hose up and out of the way to pull the screens up and out.

If you bought the Radiator Genie wand set, just use the water hose one. Will clean better than the air with less chance of fin damage as Cougsfan mentioned.

Found a RX7330 manual. Chapter 7 http://demss.co.kr/dossfile/manualnew/OM/RX6030_6630_7330_181224.pdf

Looks to be the same way:

 

[MinnesotaEric]

You need to use a Radiator Genie, the best thing since buttered bread, for cleaning junk out of screens, radiators, and condensers. Way, way better than any of my air compressor wands. I like it so much i made a video about these things some years ago.