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190XT hydraulic problems

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=167014
Printed Date: 05 Jul 2024 at 9:46am
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Topic: 190XT hydraulic problems
Posted By: youngorange2000
Subject: 190XT hydraulic problems
Date Posted: 30 Dec 2019 at 11:56am
this spring I was pulling onto the road and suddenly lost all hydraulics, fluid level was full I pulled the flow divider and couldn't find any blockage there. I pulled the pump cleaned it, took it apart, and did all wear plates and seals as well as needle bearings. now I put it back on the tractor checked fluid is full and I got no hydraulics still. Is there a special way to bleed the air out of the pump im missing? thanks



Replies:
Posted By: youngorange2000
Date Posted: 30 Dec 2019 at 12:01pm
forgot to add the tractor is a late series3 with the early 200 style pump


Posted By: Lynn Marshall
Date Posted: 30 Dec 2019 at 1:10pm
Are you checking the correct dipstick and are the splines stripped out in the drive gear?


Posted By: youngorange2000
Date Posted: 30 Dec 2019 at 1:36pm
yes both of the dipsticks on the platform are full one with hydraulic fluid the other with a thicker oil. the splines inside the pump were snug with the gears and where it goes to the front engine cover look very good aswell. Is it possable something scheered in the engine front cover where the pumps imput shaft goes?


Posted By: DrAllis
Date Posted: 30 Dec 2019 at 2:07pm
Oils for both the left (hydraulic) and right (transmission and differential) dipsticks are the same oil....821XL, Permatran, HyGard, HyTran, etc.  Did you replace the hyd pump shaft seal ??  Did you use a light grease or 90 wt oil when assembling the hyd pump gears to help them be able to make suction ??


Posted By: Joe(TX)
Date Posted: 30 Dec 2019 at 3:16pm
Since you cleaned the flow divider, double check to see if the spool is is not in backwards. I did that on my 200. It only takes a small piece of debris to make the spool stick, but this would only affect the steering an power director. The lift would still work. 

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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A


Posted By: Alvin M
Date Posted: 30 Dec 2019 at 3:39pm
Take The Pressure Line Off A The Pump Put Oil In Pump Start A Idle Fast Way To Prime Pump


Posted By: youngorange2000
Date Posted: 30 Dec 2019 at 3:45pm
yes the oil seal has been replaced in the pump and no I did not assemble it with and grease or oil


Posted By: MACK
Date Posted: 30 Dec 2019 at 9:24pm
I always fill gears and gear cavity with light wheel bearing grease. Dry gears won't suck oil to prime          MACK


Posted By: SteveM C/IL
Date Posted: 30 Dec 2019 at 10:46pm
My 220 has a cap plug on outlet fitting.When my suction hose clamp wasn't as tight as should've been,I could loosen cap plug and it would prime right up.



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