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AC 7020 T-Handle shifter

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=128909
Printed Date: 22 Aug 2025 at 1:19pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: AC 7020 T-Handle shifter
Posted By: Boiler_bull
Subject: AC 7020 T-Handle shifter
Date Posted: 18 Sep 2016 at 10:52am
I bought an 1978 AC 7020 with 3900 hours yesterday at a farm auction and it is my first AC. This tractor has sat in the barn for a while and it looks good but it has not been used. It starts right up and runs well but I can't get the shifter handle to turn at all. It will go all the way forward and back but won't budge when I go to put it in reverse or another side gear. Does this mean the cables are froze or worse? If they are froze, should I try to break them loose with a pipe wrench on the shifter or do I need to be more gentle. Or do I remove the cables and try to break them loose on the bench or just replace them?

I was able to drive it 4 miles home but it does grind the gears whenever I change gears or speed selector.

Thanks.



Replies:
Posted By: CrestonM
Date Posted: 18 Sep 2016 at 11:06am
I'm no expert, but I'd say new cables. I guess you could mess with these, trying to get them loosened up, then grease them good, but I'd just get new ones. 


Posted By: Boiler_bull
Date Posted: 18 Sep 2016 at 11:08am
It also will not go into park. Does that sound like a cable as well?


Posted By: Dans 7080
Date Posted: 18 Sep 2016 at 11:18am
Get new cables there still available from Agco. You'll have about 250 in the thandle and the park one together. I replaced them on my 7080 shifts like a new one!

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When someone tells you Nothings Impossible, Tell them to slam a revolving door


Posted By: rw
Date Posted: 18 Sep 2016 at 12:42pm
There can be more to the "won't shift into park". I bought a used 7045 and spent a few hours freeing up and adjusting and replaced cables. The T handle really works pretty freely when things are set up right and it will stay in adjustment and work good- mine has for 5 years as a hay baling and feeding tractor so lots of shifting. My 7060 had some things ran out adjustment on the range and park shifter and got really bad and we ended up pulling the shift cover for the range section and replacing some pins in the detent and interlock and maybe a shift rail had some wear in it too, but setting up the cables right has allowed it to work great for longer than it did when it was new. I think a lot of these got sold and used out of adjustment then after people figured them out they worked the bugs out of them. They do get wear inside the cables and need replaced.


Posted By: AC7060IL
Date Posted: 18 Sep 2016 at 4:07pm
Congrats on buying an great AC. I replaced my 7060's range cable which helped the range shift much easier (park,low,high). At the time, I did not replace the gear cable, but should have. Within a few years the gear cable became harder to shift. So I'd replace both at same time.


Posted By: MACK
Date Posted: 18 Sep 2016 at 8:38pm
Remove platform floor and look for broken linkage. Also remove side panel and check for a problem there.
 While the floor is out, check cable anchor for small cable that pulls shifter to side for park. Check all the linkage be for spending the money for cables you may not need.    MACK


Posted By: Tbone95
Date Posted: 19 Sep 2016 at 7:24am
You mentioned grinding going into gears....You do know the tractor is meant to be completely stopped before shifting anything? There's guys that can do some rolling shifting with lots of practice, but it is not the recommended method.


Posted By: DrAllis
Date Posted: 19 Sep 2016 at 7:41am
The Tee handle will only rotate when in neutral, never when the lever is forward or back.


Posted By: Dmpaul89
Date Posted: 19 Sep 2016 at 11:05am
in case you didnt know. you must twist the handle it does not work like a regular stick shift. In neutral try rotating it.   Also make sure your fully depressing the clutch which should engage the trans brake to make the gears not spin for less grinding.   Cables must be free as others said


Posted By: Boiler_bull
Date Posted: 19 Sep 2016 at 1:38pm
I can't get the handle to budge in neutral, maybe 1/16th to each side. So as of right now I only have two usable gears, 2 & 3. It also really grinds the gears when it is stopped and the clutch buried to the floor.


Posted By: DrAllis
Date Posted: 19 Sep 2016 at 2:04pm
TWIST THE HANDLE, NOT MOVE IT SIDE TO SIDE !!


Posted By: Boiler_bull
Date Posted: 19 Sep 2016 at 4:01pm
Yep, it won't twist.


Posted By: rw
Date Posted: 19 Sep 2016 at 4:36pm
un hook the cable that is hooked to the twist lever and then see if the handle will twist. som4e of them have ends with a sleeve that can be released to let the socket off of the ball. maybe that will help locate the binding part.


Posted By: Jwmac7060
Date Posted: 19 Sep 2016 at 6:45pm
Allis should have come up with a better shifter than that...I would just as soon have the shifter between my legs as deal with the constantly wearing out T handle....they dropped the ball on that one IMO


Posted By: DougG
Date Posted: 19 Sep 2016 at 7:14pm
But its a fancy chrome shifter handle with the AC TRIANGLE in it ! 


Posted By: Jwmac7060
Date Posted: 19 Sep 2016 at 7:52pm
Exactly


Posted By: Dmpaul89
Date Posted: 19 Sep 2016 at 7:58pm
yeah i dont care for it either.


Posted By: AC7060IL
Date Posted: 19 Sep 2016 at 9:50pm
Originally posted by Jwmac7060 Jwmac7060 wrote:

Allis should have come up with a better shifter than that...I would just as soon have the shifter between my legs as deal with the constantly wearing out T handle....they dropped the ball on that one IMO


I agree


Posted By: shameless (ne)
Date Posted: 19 Sep 2016 at 10:28pm
if my 7010 is gonna sit (like over winter) I spray panther pee down thru the slots on the console. sure helped with the sticking.


Posted By: ILGLEANER
Date Posted: 19 Sep 2016 at 10:32pm
I would do that Shamless, but l have never been able to get the panther inside the cab once l catch him.....

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Education doesn't make you smart, it makes you educated.


Posted By: shameless (ne)
Date Posted: 20 Sep 2016 at 3:23am
LMAO!!!! IG....you gotta wear gloves!



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