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6080 Touchy Brakes

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=193119
Printed Date: 23 May 2024 at 9:51am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: 6080 Touchy Brakes
Posted By: 977.3Ford
Subject: 6080 Touchy Brakes
Date Posted: 26 Jan 2023 at 12:21pm
Have my recently purchased 2wd 6080 in the shop going through it and finding its had a bit of a poor life with some crappy maintenance, and slowly getting some issues sorted out. One problem i haven't figured out, which may not be a problem at all, is the brakes. There is very little travel in either brake pedal, and as soon as you touch them the brakes lock up. No easing or feathering the brakes, its all or nothing. But at the same time the brakes don't seem to be partially engaged or dragging as the tractor rolls freely.

Is this normal for the 6000 series or is there something going on?


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Jimmy
1982 8050 Powershift
1982 6080
1992 R52 Gleaner



Replies:
Posted By: Tbone95
Date Posted: 26 Jan 2023 at 12:50pm
Memories of our Ford 6000. . . 


Posted By: SteveM C/IL
Date Posted: 26 Jan 2023 at 1:09pm
Never heard this before. Don't think it's normal. Someone will have your answer.


Posted By: NEVER green
Date Posted: 26 Jan 2023 at 2:08pm

    Not the case in  our 6080.


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2-8050 1-7080 6080 D-19 modelE & A 7040   R50       


Posted By: CrestonM
Date Posted: 26 Jan 2023 at 2:47pm
I’ve experienced this in an 8000 series that also had a poor life


Posted By: shamrock
Date Posted: 26 Jan 2023 at 3:02pm
My "well used" 6060's brakes take very little effort to get 'er whoa'd , just touch 'em.


Posted By: victoryallis
Date Posted: 26 Jan 2023 at 4:05pm
Not a lot of travel on 3 of mine.

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8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760


Posted By: DougG
Date Posted: 26 Jan 2023 at 5:57pm
They dont have alot of free travel but that can be adjusted I believe if you want - pull the small side panel off up by the steering wheel, to see how it works -you can pull the shaft out as it is splined to get more free play by rotating it - I believe this can be done, been a few years since Ive worked on one of these


Posted By: 8070nc
Date Posted: 26 Jan 2023 at 6:17pm
I dont have a 6000 series tractor but I recall reading that the brake system on them is seperate from the hydraulic system and is master cylinder and brake piston similar to a light truck. I had a ton truck that had a leaking master cylinder and would get air in the lines and the brakes would grab
Just a shot in the dark

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1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor


Posted By: DrAllis
Date Posted: 26 Jan 2023 at 6:29pm
I think you just need to get used to them. If they stop the tractor and don't make any noise doling so, just live with it.


Posted By: CORLEWFARM
Date Posted: 26 Jan 2023 at 6:31pm
If they run in oil sometimes yellow bucket oil can cause that


Posted By: AllisFreak MN
Date Posted: 26 Jan 2023 at 6:49pm
The brake pedal shaft is dried up and not releasing like it should in my opinion. Had the same thing happen on my 6060. Remove the panels on the dash and pull the brake pedals out the RH side, clean up and grease the shaft and reinstall. Worth a shot.

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'49 A-C WD, '51 A-C WD, '63 A-C D17 Series III, 1968 A-C One-Seventy, '82 A-C 6060, '75 A-C 7040, A-C #3 sickle mower, 2 A-C 701 wagons, '78 Gleaner M2


Posted By: DougG
Date Posted: 26 Jan 2023 at 7:16pm
How can Yellow bucket oil cause this ?? Explain please = Yellow Bucket 303? Yellow Bucket 334??? Explain that one


Posted By: DrAllis
Date Posted: 26 Jan 2023 at 7:19pm
The poster didn't say both pedals move together as if they were located together. If you use your two feet, with one on each pedal, depress the pedals equally and then osscilate the pedals with one foot down and the other up lightly. This will insure the pedals aren't rusted together on their pivot shaft.


Posted By: 977.3Ford
Date Posted: 27 Jan 2023 at 8:19am
Pedals arent rusted together, work independently just fine.

The brakes themselves stop the tractor and don't make any grinding noise like metal on metal, you just can't ease into the brakes. Bit of a pain when pulling a square baler and load of hay down the road, and you have to try to slow down without throwing all the hay off the wagon. LOL


-------------
Jimmy
1982 8050 Powershift
1982 6080
1992 R52 Gleaner


Posted By: Alvin M
Date Posted: 27 Jan 2023 at 8:32am
I add Lucas hydraulic oil booster worked for me 


Posted By: AC720Man
Date Posted: 27 Jan 2023 at 9:08pm
Our 6060 has really good brakes and as said do not require much travel to activate the brakes. They can be feathered or to full stop with little effort. If it has been sitting for awhile it may be that they just need to be used a bit. The system takes a special fluid not BRAKE FLUID. May not be a bad idea to drain the system and refill with the correct fluid. That could be your problem

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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD


Posted By: CORLEWFARM
Date Posted: 28 Jan 2023 at 8:21am
Originally posted by DougG DougG wrote:

How can Yellow bucket oil cause this ?? Explain please = Yellow Bucket 303? Yellow Bucket 334??? Explain that one


I have a 8640 JD if you put 303 Yellow Bucket the brakes will chatter and grab. Use 821 or cenex hydraulic and transmission they will not.


Posted By: SteveM C/IL
Date Posted: 28 Jan 2023 at 12:26pm
303 is NOT a hydraulic / wet brake fluid...you'll have more than chattering brakes running that


Posted By: CORLEWFARM
Date Posted: 28 Jan 2023 at 2:44pm
Originally posted by SteveM C/IL SteveM C/IL wrote:

303 is NOT a hydraulic / wet brake fluid...you'll have more than chattering brakes running that


I don't use it but is labeled as transmission & hydraulic fluid for wet clutches & wet brakes.


Posted By: AC720Man
Date Posted: 30 Jan 2023 at 6:54pm
Anytime I buy a used tractor I always drain all fluids and change them unless there is good documentation showing it was recently replaced with quality and correct lubricants, filters. If you haven’t already done so drain the transmission and differential and replace with 821 fluid. Drain and replace the brake system fluid with SAE 10W-10. The bleeding procedure is on page 65 of the owners manual. If someone put the wrong fluid in the brake system it will not work correctly.

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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD



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