OLD 10-20 Posted August 23 Share Posted August 23 Need to recharge the air conditioning system on the 4000 IH swather. Does any one know how many ounces of refrigerant the system holds ? Not just adding , want to evacuate it and do a complete refill. Thanks . Quote Link to comment Share on other sites More sharing options...
Drysleeves Posted August 23 Share Posted August 23 www.apair.com has a listing of vehicles and relative capacities. Quote Link to comment Share on other sites More sharing options...
acem Posted August 23 Share Posted August 23 The specifications will be for R12. Quote Link to comment Share on other sites More sharing options...
ksfarmdude Posted August 23 Share Posted August 23 Go by Gauge manifold pressures taking ambient temp into consideration I usually charge the old systems (134a) according to lowside pressure readings and Duct air temp with fan on high 1 Quote Link to comment Share on other sites More sharing options...
1066 Peterbilt Posted August 23 Share Posted August 23 26 minutes ago, ksfarmdude said: Go by Gauge manifold pressures taking ambient temp into consideration I usually charge the old systems (134a) according to lowside pressure readings and Duct air temp with fan on high And have all the doors and windows open. Quote Link to comment Share on other sites More sharing options...
OLD 10-20 Posted August 23 Author Share Posted August 23 Will follow all replies, thanks. Quote Link to comment Share on other sites More sharing options...
OLD 10-20 Posted August 24 Author Share Posted August 24 On 8/22/2023 at 8:23 PM, Drysleeves said: www.apair.com has a listing of vehicles and relative capacities. Might have but no info for an IHC swather. Inquired. Quote Link to comment Share on other sites More sharing options...
Diesel Doctor Posted August 24 Share Posted August 24 Case/IH still has a parts manual listed. https://www.mycnhistore.com/us/en/caseih/na/haytools/self-propelled-windrower/naah75sel036windrower/case-ih-self-propelled-windrower-sn-4501-after/cn/99CE6496-EFBE-E111-9FCE-005056875BD6 But no decal for the A/C system. An owners manual may have it. This will probably get down to watching the gauges and the temperature in the cab. 1 Quote Link to comment Share on other sites More sharing options...
IHC_1470 Posted August 24 Share Posted August 24 56 oz according to the service manual. 2 Quote Link to comment Share on other sites More sharing options...
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