Farm Equipment - 220 PTO question

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220 PTO question

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=16758
Printed Date: 05 Feb 2025 at 9:03am
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Topic: 220 PTO question

Posted By: Butch(OH)
Subject: 220 PTO question
Date Posted: 18 Aug 2010 at 6:19am

What are the PTO clutch and brake application pressures supposed to be on a 220? Thanks in advance.

Replies:

Posted By: Chris/CT
Date Posted: 18 Aug 2010 at 8:43am

The books say's; [ more info than you want],PTO clutch/brake pressures can be checked at check ports located in RH flange of lift housing, upper port being clutch/lower port brake. These pressures must be between 225 and 275 PSI at the check ports. If low pressure [below 225] add shims to relief valve in clutch control valve assembly. Total of 6 shims allowed, one shim equals 13 PSI. Do want a copy of this section of Serv. Manual??

Posted By: Butch(OH)
Date Posted: 18 Aug 2010 at 9:24am

Thanks Chris, I have an I&T manual and the pressures are in it,,somewhere as I seen them but I could not find them again. I have to set the power steering pressures first then on to the the PTO since its all a common circuit. My brake isnt working correctly is what I need to fix.

Posted By: Steve M C/IL
Date Posted: 18 Aug 2010 at 1:24pm

Just checking Butch,you do have lever ALL the way down in brake position don't you?Quite a bit of travel on that lever.