Hydraulic pump 7000-8000 series
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=202131
Printed Date: 04 Oct 2024 at 8:25pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Hydraulic pump 7000-8000 series
Posted By: SilverShoes
Subject: Hydraulic pump 7000-8000 series
Date Posted: 05 Jul 2024 at 11:23am
| Does anyone know who manufactured the hydraulic compensator on the piston n pump for these tractors? |
Replies:
Posted By: DrAllis
Date Posted: 05 Jul 2024 at 3:31pm
| I thought the piston pump was a Cessna, so I assume they built their own compensator. |
Posted By: SilverShoes
Date Posted: 05 Jul 2024 at 6:28pm
| Thank you, just messing with a tractor with no pto pressure and thinking it could be the compensator. Agco is a grand for a new one and was thinking I could search a little bit and see if I could find one at a jobber maybe |
Posted By: DrAllis
Date Posted: 05 Jul 2024 at 7:33pm
| Well, if the PTO doesn't have pressure, you must have other things not working right either, like poor brakes, diff lock pedal won't stay down, etc. WHAT MODEL ?? Many times the low pressure spool needs a couple of shims to fix them, not a whole compensator. What is your "stand-by pressure ??????? |
Posted By: MikeKroupa
Date Posted: 05 Jul 2024 at 8:08pm
| Doc is correct, Cessna supplied the piston pump. I had the low pressure spring break in my 8550, probably 30 plus years ago, the one offered by AGCO was the adjustable type, so updated to it. Good Luck ! |
Posted By: Lynn Marshall
Date Posted: 06 Jul 2024 at 8:17am
| I don't recall ever having to replace a compensator on a 7000-8000 series. Springs can break and shims can also break or just need to be added. The later style, screw adjustable, can break the screws and then the pressure backs off. Sometimes the piston pump itself, is the problem. |
Posted By: NEVER green
Date Posted: 06 Jul 2024 at 10:02am
|
I have a good pump for sale. ------------- 2-8050 1-7080 6080 D-19 modelE & A 7040 R50 |
Posted By: SilverShoes
Date Posted: 06 Jul 2024 at 10:26am
| Hello, how much for your pump? Where are you located. Just curious, never know when one might be needed |
Posted By: CrestonM
Date Posted: 06 Jul 2024 at 11:38pm
|
If you need a pump from one of these tractors rebuilt, I recommend this place. They can rebuild all 3. https://stoens.com/" rel="nofollow - https://stoens.com/ |
Posted By: darrel in ND
Date Posted: 07 Jul 2024 at 5:29am
Thanks Creston. I don't need anything from them now, but I sure hope that I can keep that place stored in my memory for future use. Darrel |
CrestonM wrote:Posted By: SilverShoes
Date Posted: 07 Jul 2024 at 7:15am
| Thank you for the contact |
Posted By: NEVER green
Date Posted: 07 Jul 2024 at 9:39am
Sent you a PM. ------------- 2-8050 1-7080 6080 D-19 modelE & A 7040 R50 |
Posted By: Unit3
Date Posted: 09 Jul 2024 at 9:11pm
|
Before you dive in too deep, put a load to each of your hydraulic valves. I went through this on the 7045. I had one that lifted slow. The valve had a crack in it. ------------- 2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C |