7040 powershift problems
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=171439
Printed Date: 03 May 2024 at 6:18am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7040 powershift problems
Posted By: Matthewjackson73
Subject: 7040 powershift problems
Date Posted: 24 May 2020 at 11:39am
| My 7040 will ony pull in first gear on the high side and low side and high side reverse any suggestions |
Replies:
Posted By: Leon B MO
Date Posted: 24 May 2020 at 2:57pm
|
That same thing happened to our 8050 powershift. Sounds like the nut on the end of the input shaft failed or bearing failed. We took the valve body off the right hand side of the tractor, then you can stick a bar into the transmission under the main shaft, if you have up and down play a split is the only way to fix it. Sorry about the bad news. Leon B Mo ------------- Uncle always said "Fill the back of the shovel and the front will take care of itself". |
Posted By: Matthewjackson73
Date Posted: 24 May 2020 at 3:52pm
| When that happened to yours did it do it all of the sudden it was fine all morning quit for a couple hours and came back and it was like that |
Posted By: DrAllis
Date Posted: 24 May 2020 at 6:45pm
| You say it will pull in reverse high range. There is no reason that it shouldn't be able to pull in low range if it will pull high range. That being said, if there's any oil dripping from the bellhousing, the big nut is probably loose. Removal of the right side fuel tank and then the power shift valve assembly will allow you to reach in from the side and get a long pry bar under the front clutch packs and see if you can move it up and down. You should get very little movement, like pretty near zero movement. If the nut has backed off it will obviously move. |
Posted By: Matthewjackson73
Date Posted: 24 May 2020 at 7:39pm
| Ok thanks i still dont understand why it didn't do it that morning i was using it the problem just came up after i let it sit for a few hours and came back to it any ideas |
Posted By: MACK
Date Posted: 24 May 2020 at 9:03pm
| Could have shared bolts off in clutch housing. What ever it is, it's a complete rebuild. MACK |
Posted By: DrAllis
Date Posted: 24 May 2020 at 9:10pm
| I don't think it's productive for you to question why it did what it did and when it did it. You have a problem that needs to be addressed, so figure it out or don't use the tractor any further until you do. The large nut on the front end of the transmission has a history of loosening up on its own. If that isn't it, then you must have a shift control valve problem. Either way, the shift valve and fuel tank have to be removed to diagnose the problem. |
Posted By: Matthewjackson73
Date Posted: 25 May 2020 at 8:15am
| Ok thanks for the info |
Posted By: Lynn Marshall
Date Posted: 25 May 2020 at 1:24pm
| Matt, anytime a power shift tractor is brought to me with a suspected major problem, I always put it in a position in the shop where it can be split. I don't want to put the valve body back on just to move it over to a different location after I have removed it. I even spin the rear wheels out for added room if it has that option before I take the valve body off. Expect the worst and hope for the best. |
Posted By: Matthewjackson73
Date Posted: 25 May 2020 at 7:24pm
| Good info thanks im not much of a mechanic so i was sorta hoping it be something simple like a filter plugged or something like that |
Posted By: DrAllis
Date Posted: 25 May 2020 at 7:39pm
| Is it leaking oil out of the bell housing ?? |
Posted By: Matthewjackson73
Date Posted: 26 May 2020 at 6:00pm
| No sir |
Posted By: MACK
Date Posted: 26 May 2020 at 8:49pm
| Pull valve body and lower screen cover and check for broken bolt heads in bottom. MACK |
Posted By: Guests
Date Posted: 04 Nov 2020 at 1:07pm
| I am looking for someone to fix this problem for me. I am from the UK, https://postcodefinder.net/" rel="nofollow - London webcam live . But actually, location does not matter as you can get access to my computer in a remote mode through different tools. You just need to have a few spare minutes. I would be very grateful if someone can at least diagnose the issue. Let me know if you are ready to devote some time to me. |
Posted By: Lonn
Date Posted: 05 Nov 2020 at 6:05am
------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
fioolsk wrote: