I do not want to come on to strong here but you or your ..service man.. need to follow the common theme repeated here often; trouble shoot first then apply parts as needed. I am doing a lot of assuming here which can lead to trouble as well. This is because I do not know the exact configuration of the A/C system on that tractor. A sensor ..more like a pressure switch.. on the condenser monitors for high pressure. When a certain pressure is reached it opens the circuit to the compressor clutch. This helps avoid over pressure of the high side of the system as well as over load of the compressor and clutch. Being a tractor from the 70s it would have had an R12 system so I am guessing it has been converted to 134A. So even though 134A will work in the system, it is a fact that it raises the pressures in the system which adds additional strain to the clutch and compressor. If the ..sensor.. he took out of the condenser was for monitoring high pressure he needs to reconnect it. There is a possibility that switch needs to be replaced with one that has a higher pressure spec to avoid nuisance kick out of the compressor due to higher operating pressure of 134A. Also on a 134A converted system it is HIGHLY important to keep the condenser clean and the airflow across it at the optimum of its design. Doing that helps keep the high side pressures down. So there can be no hydraulic leaks up front on the coolers or steering lines collecting oily dust. Now Dave has a legitimate question about if the system is utilizing the ..Superheat switch.. that is a hole different ball game.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 ]
Today's Featured Article - Talk of the Town: Trailerin a Tractor, Chains or Straps? - by Staff. Another great discussion from the Tractor Talk Discussion Forum. The discussion started out with the following post: " I bought a trailer and plan to take my CASE VAS to some shows. I don't yet have anything to secure it to the trailer. So which is better to buy and use; the ratchet-type straps or binders and binder chains?
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[More Ads]
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.
