8070 hydraulic pump
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=167666
Printed Date: 27 Apr 2024 at 8:54am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8070 hydraulic pump
Posted By: Arlis chalmers
Subject: 8070 hydraulic pump
Date Posted: 23 Jan 2020 at 7:10am
| I was looking at an 8070 for sale, But in the descriptions it says that the HY pump is bad. So my question is where is the hydraulic pump located on the 8070s and is it external or internal? It had Front wheel assist I don’t know if that makes any difference. Thanks in advance! |
Replies:
Posted By: Lonn
Date Posted: 23 Jan 2020 at 7:25am
|
External and located just in front of the right rear axle ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: MACK
Date Posted: 23 Jan 2020 at 7:48am
| Gear pump is different on FWA. MACK |
Posted By: victoryallis
Date Posted: 23 Jan 2020 at 7:52am
|
New hydraulic pumps can get spendy. The gerotar pump on my 7580 was bad saved roughly 60% having local hydraulic shop rebuild it. ------------- 8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760 |
Posted By: NEVER green
Date Posted: 23 Jan 2020 at 8:46am
|
Which pump, there are three of them. ------------- 2-8050 1-7080 6080 D-19 modelE & A 7040 R50 |
Posted By: Lonn
Date Posted: 23 Jan 2020 at 9:59am
|
He'd have to find that out but they are all located in the same spot. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Arlis chalmers
Date Posted: 23 Jan 2020 at 12:12pm
| I’m not sure which pump it is from what information I have got from the guy is that it has no lift arms The hydraulic hook ups in the back don’t work and the power takeoff is spinning all the time. I do most of my own mechanic work I have replaced them on like 560 internationalIt was also internal but you didn’t have to split it with this one being in ternal does it need to be split or is there a way to access them |
Posted By: DrAllis
Date Posted: 23 Jan 2020 at 12:41pm
| Could be something as simple as a broken spring on the main pumps compensator valve. Don't just go yanking off the pump without proper diagnosis. |
Posted By: Lonn
Date Posted: 23 Jan 2020 at 1:05pm
------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Arlis chalmers wrote:Posted By: Arlis chalmers
Date Posted: 23 Jan 2020 at 1:19pm
| And where is the location of the three pumps |
Posted By: DrAllis
Date Posted: 23 Jan 2020 at 1:24pm
| Remove the right side cab step. Swing out the batteries. Look down inside. To actually work on them, you'll need to drain down the fuel and remove the right side fuel tank. |
Posted By: Arlis chalmers
Date Posted: 23 Jan 2020 at 2:28pm
| Thank you guys for all the helpful information I will let you know what the verdict is on if I buy the tractor in with the problem and end up being |
Posted By: festus51
Date Posted: 23 Jan 2020 at 3:51pm
|
Arlis welcome to the channel. We are only a few miles apart. ------------- We the unwilling Led by the unqualified Doing the impossible for the Ungrateful |
Posted By: Arlis chalmers
Date Posted: 23 Jan 2020 at 4:06pm
| Thank you it’s always nice to converse with other Allis lovers |
Posted By: Lynn Marshall
Date Posted: 23 Jan 2020 at 8:00pm
| You're going to need a gauge for this project one way or the other if you're going to try and do this yourself. Regardless of either fixing your old pump or replacing it with a new or used pump, you're going to need to see what pressure it is putting out. A simple low pressure spring on the compensator may very well fix the problem . Plus, the later tractors had a problem with brittle screws that adjusted the pressure and would break and cause low pressure. Easy fix by just swinging out the batteries. |
Posted By: rieg
Date Posted: 23 Jan 2020 at 8:43pm
|
Welcome to the forum, my 8050 had the same problem last year turned out to be a blown fourth inch o ring between the pumps or some place like that at least that is what they showed me, and told me was the problem. Anyway it works now but has a terrible whining noise that was never there before they think the stand-by pressure needs adjusted. I don't know how they tracked it down hydraulics are out or my comfort zone so I took it to the professionals at our ADCO dealer. ------------- rieg |
Posted By: 8070220
Date Posted: 24 Jan 2020 at 8:52am
| I have all 3 pumps here .for sale for a 2wd .if u fine u need the pumps . |
Posted By: Arlis chalmers
Date Posted: 06 Mar 2020 at 4:50pm
| What is the difference between the 2 Wheel-drive pumps and the four-wheel-drive pumps |
Posted By: tbran
Date Posted: 06 Mar 2020 at 11:07pm
|
Gear pump and housing are diff - first thing I would do is pull the filter, check for the end cap that goes in the ends of both hyd belly filters. Check the oil level, then put a gauge in the tee in the place to check stand by , see if there is about 400 -550 psi and if not check the low pressure stand by spring on the compensator. IF the spool and spring are ok and there is no pressure - you have a pump problem probably - if you have some pressure - adjust via allen screw or shims. Check the hp by pulling the remote - if no high pressure check the hp spring in the compensator. A service man is necessary if no experience with a compensator system. It is not that complicated a system but a few items control standyby and flow systems on the piston pump. ------------- When told "it's not the money,it's the principle", remember, it's always the money.. |
Posted By: Arlis chalmers
Date Posted: 12 Mar 2020 at 12:36pm
| Thanks for the info how do you change the pto size on the 8070 |
Posted By: SteveM C/IL
Date Posted: 12 Mar 2020 at 5:32pm
| If you want 540,you change all the pto guts. If you want the little 1000,just put the adapter on it. Why do you want to change what you have? |
Posted By: Arlis chalmers
Date Posted: 13 Mar 2020 at 6:09am
| Well like my brush hog is 1000 the pump for my planter is 1000But my Baler is 540 but on my messy You just put you 1000 or 540 but there are different bolt patterns for each did not know if it had something similar |
Posted By: DrAllis
Date Posted: 13 Mar 2020 at 7:36am
| Then, you want the complete dual speed 540/1000 RPM PTO from a 7010 thru 7060 or 8010 thru 8050. Remove what you have and install the other. |
Posted By: Arlis chalmers
Date Posted: 13 Mar 2020 at 7:59am
| Ok thanks |