Farm Equipment - D19 HYDRAULICS

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D19 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=14264
Printed Date: 31 Oct 2025 at 5:15pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D19 HYDRAULICS

Posted By: 190XTLP
Subject: D19 HYDRAULICS
Date Posted: 23 Jun 2010 at 11:13am

my D19 power director light comes on with hot oil at a medium idle and

when lifting a heavy load it lifts slow.Any ideas where to start?

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WD45G,WD45D.190XTD,190XTLP

D19LP,WC unstyled,WF unstyled

WC styled,220

Replies:

Posted By: Bob(FL)
Date Posted: 23 Jun 2010 at 12:03pm

I would start with changing the filter, if that does not fix it check pressure, light on means low pressure.

Posted By: 190XTLP
Date Posted: 23 Jun 2010 at 1:51pm

filter and oil is new,if pressure is low do you think pump

needs a rebuild?

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WD45G,WD45D.190XTD,190XTLP

D19LP,WC unstyled,WF unstyled

WC styled,220

Posted By: Bob(FL)
Date Posted: 23 Jun 2010 at 1:59pm

you power director pump and hydraulic pump are different, sounds like you have more than one problem.

Posted By: DonDittmar
Date Posted: 23 Jun 2010 at 2:25pm

Is your main clutch slipping??

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Experience is a fancy name for past mistakes. "Great moments are born from great opportunity"

1968 D15D,1962 D19D
Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start

Posted By: skipwelte
Date Posted: 23 Jun 2010 at 4:10pm

the pressure sender for the lite is up on the filter housing. plug a guage in there and see what the pressure is and see if in fact it does go down. All the PD pump does is pump oil to the filter and for lube of the PD gears. Lifting is a separate issue, may be the pump has some check ball springs broken which will cut down the flow, the more you try to lift the slower it will get. A relief usually doesnt act that way, it all or near nothing. you have to pull the pump to get to the check ball springs. HTH