Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

Air Conditioning conversion on 4050

Welcome Guest, Log in or Register
Author 
Junkman

11-16-2001 18:17:39




Report to Moderator

I was wondering if anyone of you guys have had any A/C experience. How hard is it to convert a 4050 to the new r-134A refrigerant? The dealer wants $2000 to do it and I know I can do it myself, but any info you could give would be greatly appreciated. Thanks in advance.
Junkman




[Log in to Reply]   [No Email]
Carl R

11-17-2001 19:38:44




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
On some of the earlier 50 series tractors there was a timer relay under the roof. If there are two lights beside the thermostat in the cab, you still have the timer relay. This timer relay is OK when it works right, but a lot of them don't. Deere makes a kit consisting of two pressure switches and a new hose which eliminates this problem. Ask for part # RE24456, which runs around $206. Follow the enclosed instructions exactly and you will have no trouble at all.

I prefer to change systems over ONLY if the compressor (R12) fails, which does not happen all that often with the Nipendenso compressor. When I change a system over, I change compressor, receiver/dryer, and expansion valve. I also flush the system with a brake/parts cleaner. I have not had ONE come back with problems if I am allowed to switch things over in this manner. $2000 seems a little steep, labor rate about $65/hr?

[Log in to Reply]  [No Email]
Russ

11-17-2001 17:41:51




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
What we do in the shop is evacuate the R12 into our reclaimer. Take compressor off and drain all the oil out. Install 11oz of ester 100 oil, install new rec/drier, remove shrader valves from the A/C lines( if you have high press switch only remove lo side valve) and install R 134a coupler. Install 80% of what R 12 charge is ( ex.4lb of R12 and you will need 3.6 lb of 134a. Vacuum system down and charge A/C system.$20.00 for freon and %20.00 for ester 100 oil and whatever the rec/ drier is is all you have for expense.

I recommend replacing rec/drier since the 2 oils and freons do not mix and this will eliminatemass contamination of freon. Chances the rec/drier is old and dirty any how.

Good luck

[Log in to Reply]  [No Email]
signman

11-17-2001 08:57:35




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
Do you want to know the EPA way. Or the way that it is done on the farm. Kmart Walmart and the local Auto discount stores have a kit for about $50. That's right $50 that will adapt and refill your current system with R134. it is your choice on how you dispose of the R12 in your system as far Vacuun and all. We have had a 4230 that has never had a good AC. Where my 4430 has an after market 134 system that will freeze you out.

I took one of these kits and filled the original 4230 AC system with the provided oil and refrigerant along with a can of O-ring conditioner and sealant. For 2 years we have enjoyed the first cold air ever out of that system.

I have since had used car dealers say they have been doing this for years.

[Log in to Reply]  [No Email]
Plant Doctor

11-17-2001 05:48:18




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
Junkman: Before you go to all the trouble of converting to the 134a, go to this website and read about ES12a refrigerant. (http://www.autocool-refrigerants.com/product.htm)The ES12a is a much easier conversion, safe and much more efficient than the 134a. I haven't converted any of my tractors yet, but I have done two pickups and this stuff is great. After reading about it post back and tell us what you think. Good luck.

[Log in to Reply]  [No Email]
john nelson

11-16-2001 21:57:35




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
johns right, the rules are really specific, just remember its the same syestem as your car or truck, ask the guy down at napa, he will probably have the answer
john



[Log in to Reply]  [No Email]
G Taylor

11-16-2001 19:32:30




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
New o-rings everywhere to hold the smaller R-134a molecules in. Sometimes a higher pressure cutout switch is required at the compressor & a smaller orfice. Thee will be some loss of capacity compared with R-12. Unless you have a vacuum pump & gauge set don't try this at home.



[Log in to Reply]  [No Email]
John M

11-16-2001 18:59:40




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
I forgot, you`ll need Hi&Low side adaptor fittings at chg\press ports. Also, whats left of R12 in original system, must be reclaimed. (thought I`d better cover my !@#.



[Log in to Reply]  [No Email]
John M

11-16-2001 18:47:53




Report to Moderator
 Re: Air Conditioning conversion on 4050 in reply to Junkman, 11-16-2001 18:17:39  
No Big Deal. We drain oil from compressor, add 8oz Ester 100 oil, remove filter\dryer,blow out lines for heckofit, install new dryer, Vacumpump system, & charge.(48-54oz) This is for changeover only, not all end up to be this simple.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy