Two-Ten pto
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=209993
Printed Date: 24 Mar 2026 at 7:41am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Two-Ten pto
Posted By: BLee Mn
Subject: Two-Ten pto
Date Posted: 06 Feb 2026 at 3:00pm
my pto brake doesnt seem to work, is it a simple fix?
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Cowboy UP
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Replies:
Posted By: DrAllis
Date Posted: 07 Feb 2026 at 6:34am
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The PTO clutch and brake are hydraulically applied. So, I guess you somehow need to "tee" in two 500 psi gauges into the steel lines going to the clutch/brake area on the lift arm housing. Maybe using a jumper hose looped around in a circle to get connected ?? With the engine running the pressure "engaged" should match the pressure when "off" in the brake zone. If pressures are equal, I'd say you have internal issues and the lift arm housing would have to come off to repair. I've never seen one that has failed. Remember, the PTO lever has THREE positions. Fully up is ON. Fully down is BRAKE. In the middle is COAST. The coast position ain't the brake position.
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Posted By: SteveM C/IL
Date Posted: 07 Feb 2026 at 10:33am
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It will run in coast with nothing attatched. Easy enough to knock out of "on" with your right leg when bush hogging.
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Posted By: BLee Mn
Date Posted: 07 Feb 2026 at 2:58pm
yes i have pto postion lever all the way down, still turns
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Cowboy UP
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Posted By: HagerAC
Date Posted: 09 Feb 2026 at 9:09am
I've heard the pto valve in the 210 and 220 are likely culprits is what I've been told by others, I need to investigate ours as well, as it seems to slip under load, even though we don't really use the PTO on it. Tried it on the grain vac years back and it slipped under when it got a good load on it. Asked a few about it and they said the valve likely needed to be looked at and cleaned up.
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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Posted By: DrAllis
Date Posted: 09 Feb 2026 at 9:28am
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BUT, even to do that, one should pressure test the clutch and brake circuits BEFORE and AFTER you work on the valve. There may well be pressure test ports on the valve, but it's inside the console and I myself have never worked on one (yet).
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