7045 air conditioner
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=32939
Printed Date: 27 Aug 2025 at 4:41am
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Topic: 7045 air conditioner
Posted By: XT in pa
Subject: 7045 air conditioner
Date Posted: 27 Jun 2011 at 9:12am
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how much 134 a goes in a 7045 unit
Shawn ------------- 190XT,D17and 7045 |
Replies:
Posted By: ryan(IN)
Date Posted: 27 Jun 2011 at 1:18pm
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If you have a scales i think its 3.5 lbs. somebody should chime in. ------------- ryan 1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62 |
Posted By: XT in pa
Date Posted: 27 Jun 2011 at 2:03pm
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ok i tried 2 12oz cans and it got warmer lol now what ? ------------- 190XT,D17and 7045 |
Posted By: BobHnwO
Date Posted: 27 Jun 2011 at 3:22pm
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Do you have gauges on it?
------------- Why do today what you can put off til tomorrow. |
Posted By: Brian Jasper co. Ia
Date Posted: 27 Jun 2011 at 7:39pm
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What have you done so far? You have to remove all of the R12 first and evacuate the system. Typically a system converted from R12 to 134 will be 60% to 80% of the original R12 capacity. ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: XT in pa
Date Posted: 28 Jun 2011 at 8:04am
Shawn ------------- 190XT,D17and 7045 |
Brian Jasper co. Ia wrote:Posted By: denny sd
Date Posted: 28 Jun 2011 at 8:28am
| Have you checked to make sure the heater is shut off, cable comes loose on top of cab. Sounds like your over charged condition. It is easy to over charge with 134. |
Posted By: Brian Jasper co. Ia
Date Posted: 28 Jun 2011 at 12:04pm
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At this point, you need to recover the system and recharge with a known amount. You need a gauge set to see whats going on. Low charge is just one of several causes for poor cooling. A fan clutch that free wheels too much, radiator and condenser clogged with chaff, stuck thermal expansion valve are a few that come to mind. You're pretty much stuck taking it to someone with a recovery machine and gauges to get it working now. Don't just vent it off. If the system is discharged too fast, the oil goes out with it. ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: Stan IL&TN
Date Posted: 28 Jun 2011 at 3:06pm
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I thought R134 was safe for o-zone? ------------- 1957 WD45 dad's first AC 1968 one-seventy 1956 F40 Ferguson |
Posted By: XT in pa
Date Posted: 28 Jun 2011 at 3:27pm
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so the gas has to come out not the liquid? if i would get a gauge, what pressure should it read to be good ?
thanks Shawn ------------- 190XT,D17and 7045 |
Posted By: 7060
Date Posted: 28 Jun 2011 at 4:56pm
| Are you sure the compressors still running? You might look at the front of the clutch and make sure. |
Posted By: LouSWPA
Date Posted: 28 Jun 2011 at 5:12pm
If you can wait 'till next week, I would be happy to come and give you a hand. I just struggled through one of these sucessfully. I have the gages, recouvery unit, scaled, etc. Really, w/o these and a little knowledge you're just wizzin in the wind. I'm not lookin' for money, maybe a free beer! ------------- I am still confident of this; I will see the goodness of the Lord in the land of the living. Wait for the Lord; be strong and take heart and wait for the Lord. Ps 27 |
Posted By: Brian Jasper co. Ia
Date Posted: 28 Jun 2011 at 9:07pm
------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: Brian Jasper co. Ia
Date Posted: 28 Jun 2011 at 9:14pm
------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: XT in pa
Date Posted: 29 Jun 2011 at 3:15pm
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Lou that sounds great plz give me a call anytime i work 5pm to 5 am and i farm all day so anytime is good Shawn 724-255-9904 ------------- 190XT,D17and 7045 |
Posted By: LouSWPA
Date Posted: 29 Jun 2011 at 6:06pm
I live near Intersection of 18 and 30 ------------- I am still confident of this; I will see the goodness of the Lord in the land of the living. Wait for the Lord; be strong and take heart and wait for the Lord. Ps 27 |
Posted By: Gregor
Date Posted: 29 Jun 2011 at 8:19pm
| my experience with ours is 3-4 cans. but should have seen a little cooling with 2. Maybe it is running out as fast as it is going in. time for guages on the system. if overcharged, your high side press will go extemely high and something could blow. But I feel 2 cans just isn't quite enough yet. |