Go BottomJD 3520 AC
 | lgartman
Join Date: Jun 2009 Posts: 2 Sheridan, AR 
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2009-06-21 163531
I have a two year old JD 3520 w/cab. I took it to the dealership last summer to have the AC checked because it was not cooling very well. They suggested cleaning the radiator and cab AC filter after each mowing. We do both of these religiously. It is in the upper 90s here and despite running the AC wide open, it does not adequately cool the cabin; unlike both our 6420 and 6430. Anyone have any ideas?
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 | auerbach
Join Date: Sep 2007 Posts: 2168 West of Toronto 
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2009-06-22 163553
If it worked OK when new, the first troubleshooting procedure for these symptoms is to introduce a dye into the system to see if and where there's a leak. Unless it's still under warranty, I'd look for a general garage that does air and is willing to do a tractor, or a tractor shop that does air. ....
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 | kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina
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2009-06-22 163560
I like auerbach's comment if it cooled it properly when new.
If it did then something changed. As he pointed out to check for leaks in the sealed system and there is also the possibility some part in that system is also not working as it should and also there is possibility there is an air leak (gasket damaged or missing) in the cab or some heat source since new such as insulation that has been damaged or removed. ....
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 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York
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2009-06-23 163574
Did you get a year of it working good or you had trouble with it in your first year? ....
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