Farm Equipment - Allis 7040 air conditioning system

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Allis 7040 air conditioning system

Printed From: Unofficial Allis
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=196598
Printed Date: 25 Sep 2024 at 1:22pm
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Topic: Allis 7040 air conditioning system

Posted By: captaindana
Subject: Allis 7040 air conditioning system
Date Posted: 10 Aug 2023 at 8:05am

How many pounds of r134 does it call for? Thanks! Dana

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Blue Skies and Tail Winds
Dana

Replies:

Posted By: Alvin M
Date Posted: 10 Aug 2023 at 10:52am

on from new A6 3.8 Seltec Kit 3.25-3.4 New delco A6 3.25-3.50

Posted By: captaindana
Date Posted: 11 Aug 2023 at 8:55am

Thank you!

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Blue Skies and Tail Winds
Dana

Posted By: tbran
Date Posted: 11 Aug 2023 at 9:24am

FROM OUR EXPERIENCE.. on older systems they are like mother in laws.. each a little different. We always charge the older systems on a 90 degree day to no more than 225-250 on the high side and it should be less than 20 on the low side WITH THE SIDE SHEETS ON. Then it will be cold at the evaporator, the air flow will determine BTU cooling - Then at about 1500 RPM close the doors and turn the fan to low - watch the low pressure - it should go to 12-14 PSI and the thermostat should kick off the compressor. Anything abnormal, there is an issue .

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: captaindana
Date Posted: 11 Aug 2023 at 10:35am

Thank you Tim!

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Blue Skies and Tail Winds
Dana