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Convert 2-135 to r-134


 
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2SteveWI
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Joined: 11 Jul 2006
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PostPosted: Fri Dec 28, 2012 5:11 pm    Post subject: Convert 2-135 to r-134 Reply to specific post Reply with quote

Would like to fix the A/C on my 2-135. The R-12 system has not worked for several years. Is an upgrade kit available, or can I use a R-134 expansion valve from a newer White tractor, along with a different compressor, and receiver-dryer. Thanks Steve.
 
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Wisconsin Cowman
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PostPosted: Fri Dec 28, 2012 6:26 pm    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

Check with an Agco dealer or a Dealer that sells Hy-Capacity. They have kits and parts you need to convert.
 
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agcodick
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PostPosted: Fri Dec 28, 2012 6:30 pm    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

Converting it over isn't a big deal. You can use the old compressor if its good. You will have to change the oil in it. I would recommend a new dryer anyways. Change all the o-rings for good measure. Talk to any dealer or truck shop and they can help you out.
 
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Johnboy60
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PostPosted: Fri Dec 28, 2012 7:51 pm    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

I have converted my 2-105 and 2-135 no big deal just don"t cool as much
 
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Driver in ia
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PostPosted: Fri Dec 28, 2012 9:24 pm    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote



Repair the leaks remove all the old oil and install 134 oil and charge.
 
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rrlund
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PostPosted: Sat Dec 29, 2012 6:54 am    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

You can buy a kit at most auto parts stores. Just follow the instructions on the package.
 
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jacks
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PostPosted: Sat Dec 29, 2012 6:58 pm    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

There is a product called Freeze-12 which runs at the same pressure and provides similar performance to R-12. I have converted several systems from R-12 to R-134. The results have been marginal. R-134 runs at higher head pressures, and will toast some compressors designed for R12. A 400 psi cut out switch should be installed to protect the compressor and refrigerant hoses. The condensers designed for an R12 system do not provide cooling for R134. The result is reduced cooling capacity. To really convert an r12 system may require changing the condenser, compressor, and expansion valve. Or, just use your original system with Freeze 12 with no reduced performance.
 
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Dick W.
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PostPosted: Sat Dec 29, 2012 7:26 pm    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

If you install Freeze 12 in it no shop will ever want to work on the ac system. At the shop we need to recover all refrigerant before opening a system. If there is a mix like freeze12 in there we won't work on it since we would need a special recovery machine just for freeze 12. If you change to r134 you don't need to drain the oil out of the compressor, a little r12 oil is a good safety lube if the other oil or refrigerant gets too low. The r12 oil in the compressor won't travel with the r134, just stays in the compressor. HTH.
 
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workhorse puller
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PostPosted: Sun Dec 30, 2012 6:18 am    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

i have a case of r-12 for sale make me an offer 618-363-8187
 
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mattwillson
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PostPosted: Mon Dec 31, 2012 6:22 am    Post subject: Re: Convert 2-135 to r-134 Reply to specific post Reply with quote

414-a is what I use in a r-12 system
 
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