How should i test 190 hydraulic pump
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=188171
Printed Date: 16 Dec 2025 at 7:12am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: How should i test 190 hydraulic pump
Posted By: John m
Subject: How should i test 190 hydraulic pump
Date Posted: 10 May 2022 at 9:08am
|
Ok, I'm back to working on the 190xt. How should I test my hydraulic pressure from the pump? I put new wear plates etc throughout the pump. Where should I tap into the lines at? And should I cap off the other end of lines to be sure I get a pressure check instead of free flowing conditions? Thanks, John
|
Replies:
Posted By: SteveM C/IL
Date Posted: 10 May 2022 at 2:39pm
|
Gauge attatched to hyd fitting that plugs into rear outlets.....test after oil is warmed up. May need to readjust pressure. (lower)
|
Posted By: John m
Date Posted: 10 May 2022 at 8:16pm
|
I'll give that a try. Three point goes up but soon as I shut the tractor off the three point immediately goes down. Never did that before. And the power steering turns with one finger. Getting frustrated
|
Posted By: MACK
Date Posted: 10 May 2022 at 9:26pm
|
Hooked to a flow rater would be the best way to check pump MACK
|
Posted By: DrAllis
Date Posted: 10 May 2022 at 10:16pm
|
Power steering works ??? or turns easily with no front wheel control ??
|
Posted By: John m
Date Posted: 11 May 2022 at 8:05am
|
Power steering works great, it turns the tires using one finger. This is the tractor that I had to replace all the intermediate gears and had a pile of teeth and shavings on the lower screen. I rebuilt the hydraulic pump ( three pump sections) with all new wear plates, seals etc. I'm wondering if I have shavings or more metal from the teeth lodged in some relief valves back by the valve bank. Thought I should check pump pressure of all three pump sections as a starting point. But I don't have a clue where to begin. I read on someone's post that the screen in the bottom may be a one way screen, if so maybe I have that the wrong side up? But I'm just grabbing straws at this point.
|
Posted By: DrAllis
Date Posted: 11 May 2022 at 9:19am
|
I think you have nothing wrong. Plug in a 3000 psi gauge into any remote outlet and activate with the engine throttled up. You should see 2,200 psi. As far as settling on the 3-point hitch, if you only knew how many of those tractors did that. Some do. Some don't. You may have air in the lift cylinders yet. You might locate the "Tee" handle on the 3-point valve (front side/above the spool center-line) and try and tighten it a little. Tap on the end of it with a hammer to seat it and try to make it turn. Even a little tighter may slow down the leak-off. My Dad's D-17 IV never leaked down. My Uncle's One-Seventy would be dragging the 73 series plow after a mile of road travel. That's what they make the position control lever for......to keep the load "up".
|
Posted By: John m
Date Posted: 11 May 2022 at 9:39am
|
Thanks Doc and SteveM. Wife has dental appointment today but soon as I can I'll check pressure on the remotes. Hopefully the pressure is up there. I appreciate all the help, John m
|
Posted By: John m
Date Posted: 11 May 2022 at 9:42am
|
Sorry Mack, I don't have access to a flow gauge. I live up in the U.P. of Michigan and there's not much access to a lot of the special gauges. Thanks, John m
|
Posted By: ksbowman
Date Posted: 11 May 2022 at 6:31pm
|
https://www.amazon.com/gp/product/B0087UYSPS/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1ohn" rel="nofollow - https://www.amazon.com/gp/product/B0087UYSPS/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 , Here is the one I bought on Amazon. It is a 0-5,000 and it costs $17 including tax.. Best $17 dollars I've ever spent. Just screw on one of your hydraulic couplings.
|
Posted By: ksbowman
Date Posted: 11 May 2022 at 6:33pm
|
https://www.amazon.com/gp/product/B0087UYSPS/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1" rel="nofollow - https://www.amazon.com/gp/product/B0087UYSPS/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 sorry the other one is wrong due to operator error. LOL
|
|