7030 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=177506
Printed Date: 22 May 2025 at 8:31am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7030 hydraulic pump
Posted By: Natestol
Subject: 7030 hydraulic pump
Date Posted: 13 Jan 2021 at 9:04am
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7030 hydraulic pump bad and wondering if there is a manufacture out there that has different pump to fit and work?
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Replies:
Posted By: DrAllis
Date Posted: 13 Jan 2021 at 10:19am
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Which pump?? Gerotor..….gear......or main piston pump??
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Posted By: Natestol
Date Posted: 13 Jan 2021 at 12:32pm
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Dr allis well both!? I have a piston pump bad on one tractor but I think it be nice to know either
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Posted By: DrAllis
Date Posted: 13 Jan 2021 at 1:33pm
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A "bad" piston pump many times isn't a serious issue. A broken spring in the compensator control valve for example. Sometimes a broken spring on the swash plate. A proper diagnosis is needed or a teardown of the pump to inspect. The piston pump is the lifting pump. The gear pump is for power steering and the gerotor pump is for the transmission, but they are all connected together as one.
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Posted By: Natestol
Date Posted: 13 Jan 2021 at 1:46pm
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Thanks, I had the head of a piston pop off on one an chew it up
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Posted By: DrAllis
Date Posted: 13 Jan 2021 at 3:49pm
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I'd be looking in a salvage yard. Don't think you will ever find one except thru AGCO or another AC tractor. They were designed specifically for those tractors.
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Posted By: Natestol
Date Posted: 13 Jan 2021 at 8:09pm
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Dang I was hoping someone came up with a gear pump to replace the piston pump of something
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Posted By: DrAllis
Date Posted: 13 Jan 2021 at 9:45pm
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That cannot ever happen. That hydraulic system is designed to have a variable volume/variable pressure hydraulic pump. Those pumps don't fail very often. Many have been neglected over the years with few oil/filter changes.
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Posted By: MACK
Date Posted: 13 Jan 2021 at 9:48pm
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I have a piston pump that has been used very little . I can take it apart and check it out for any ware. MACk
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Posted By: Play Farmer
Date Posted: 14 Jan 2021 at 4:19pm
I have a pump from my parts tractor that was supposed to be in good working condition.
I cannot confirm that but so far everything the previous owner said was good has been good, everything that was bad was as they said.
I can get numbers off it and pictures if you'd like.
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