Farm Equipment - 7080 Air conditioner quit

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7080 Air conditioner quit

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=162305
Printed Date: 24 Oct 2025 at 8:41am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7080 Air conditioner quit

Posted By: dnel45
Subject: 7080 Air conditioner quit
Date Posted: 28 Jun 2019 at 5:44pm

Have power to clutch when switching thermostat on and off, clutch isnt activating - charge was good on compressor earlier this spring. 95 degree day here when it quit. Any ideas? Thanks

Replies:

Posted By: dnel45
Date Posted: 28 Jun 2019 at 5:48pm

Its a R134a Everco A6 model.

Posted By: dnel45
Date Posted: 28 Jun 2019 at 5:48pm

Clutch and compressor are spinning as well

Posted By: Joe(TX)
Date Posted: 28 Jun 2019 at 8:45pm

Either the coil in the clutch is bad or there is no ground, The second wire on the connector is a ground.

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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A

Posted By: dnel45
Date Posted: 28 Jun 2019 at 8:53pm

Checked the black ground wire that goes to the front of the radiator to a bolt ground, wire looked good, it does go through some sort of resistor before going to the bolt - any idea if that would cause an issue?

Posted By: MACK
Date Posted: 28 Jun 2019 at 8:57pm

There is a ground wire in front of radiator left side. Bolt screws into frame where antifreeze gets on it and causes rust. Clean up good use new bolt and antiseze. MACK

Posted By: dnel45
Date Posted: 28 Jun 2019 at 9:01pm

Bolt head looked fine but i didnt take the bolt out to see if there was a rust issue. Will check tomorrow. Thanks.