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190 Slow Hydraulics

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=161700
Printed Date: 13 Dec 2025 at 8:18pm
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Topic: 190 Slow Hydraulics
Posted By: dhs
Subject: 190 Slow Hydraulics
Date Posted: 07 Jun 2019 at 6:08pm
I just picked up a 190XT and the hydraulics are slow. Pressure at the remote is 900-1000psi. There is proper oil, new filter, pickup sump is clean, and there is no strainer in the pump intake line. I am ready to get into the pump unless there is something else I should check first.



Replies:
Posted By: DrAllis
Date Posted: 07 Jun 2019 at 8:33pm
But, you don't KNOW if the relief valve is the problem, or the pump.  Swap the Traction Booster relief valve cartridge and the main relief cartridge and see if the problem stays the same or not. A hydraulic flow-rater is the sure diagnostic tool to be using.


Posted By: dhs
Date Posted: 08 Jun 2019 at 6:13pm
Thanks Dr, it's working enough to run the mower but when I'm done with hay I will look into the relief valve. I have a parts tractor that had good hydraulics that I can pull the relief valve off  and try.



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