Hydraulic Port O rings
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=206744
Printed Date: 17 May 2025 at 4:50pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Hydraulic Port O rings
Posted By: Tbone95
Subject: Hydraulic Port O rings
Date Posted: 16 May 2025 at 4:16pm
|
I’m confused. Just when you think you know…. The old Deere style outlets take an o ring different than ISO / Pioneer style. One has a square cross section, one round. Which is which???!! |
Replies:
Posted By: dkattau
Date Posted: 16 May 2025 at 5:47pm
| The Deere cone tips, from ‘61-‘84, used a round ring and backup ring. Post ‘84 ISO tips used the square cut quad ring and backup ring. |
Posted By: Tbone95
Date Posted: 16 May 2025 at 6:05pm
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Thank you! That’s sort of what I thought…..but, dad swore it was the other way. Plus, we had a pack of each labeled wrong from a dealer. Plus the tractor I worked on before this had some of each. Plus the one I just took out was so messed up I couldn’t hardly tell. Plus, had a helluva time getting the square one in there! Been told you don’t really need the backing ring, but does it go on the tractor side or hose side? |
Posted By: dkattau
Date Posted: 16 May 2025 at 8:00pm
| Hose side, away from the tractor. The backup ring is just there to keep the o-ring or quadring from rolling in the groove. If you don’t ever uncouple the hoses, you can leave the backup ring out. |
Posted By: dkattau
Date Posted: 16 May 2025 at 8:03pm
| You can use o-rings in the ISO couplers, that’s all the Pioneers used. The quad rings are supposed to hold a seal longer. Whether they do or not is still up for debate… |
Posted By: Tbone95
Date Posted: 16 May 2025 at 8:21pm
Well, I’ve got one of each in #3! Guess that’ll be a good test. Thanks a million for the info. |
dkattau wrote:Posted By: Codger
Date Posted: 16 May 2025 at 8:43pm
|
I purchased sealing ring kits from amazon in both SAE, Metric, and square cut styles from very small to very large. About $40.00 for all I have and they get used often as I see quite a bit of SAE fittings, and Ag fittings along with some code 61 flange fittings.
------------- That's All Folks! |
Posted By: Tbone95
Date Posted: 17 May 2025 at 9:01am
| Side note, I have never had that much “fun” taking an o ring out!😡😡😡🤬🤬 |