7040 hydraulics for pulling
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Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=141186
Printed Date: 27 Nov 2024 at 5:40pm
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Topic: 7040 hydraulics for pulling
Posted By: NEVER green
Subject: 7040 hydraulics for pulling
Date Posted: 07 Aug 2017 at 9:13am
Took out all shims in compensator for piston pump and the brakes still work, how much pressure required for brakes to keep working????
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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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Replies:
Posted By: tbran
Date Posted: 07 Aug 2017 at 9:10pm
brakes will work in manual mode with engine off....somewhat
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When told "it's not the money,it's the principle", remember, it's always the money..
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Posted By: DrAllis
Date Posted: 08 Aug 2017 at 7:21am
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I might think about removing the piston pump entirely and installing a 250 psi regulator on the return side of the orbitrol and sending that 250 psi pressure to the brake valve so there was still "power" brakes and no piston pump at all.
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Posted By: NEVER green
Date Posted: 08 Aug 2017 at 9:56pm
Yes.... very interesting, something to consider. On a hard starting stock 7040, I took out all the shims and it did noticeably start easier.
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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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Posted By: tbran
Date Posted: 08 Aug 2017 at 11:46pm
At Louisville many years ago there was a 7030 power train that had an electrical motor sticking out of the hole where the gerotor pump was that was powered a pump doing exactly what the good Dr. suggested above except it eliminated all power train hp loss due to powering a hyd pump. Unit had a Crower clutch..
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When told "it's not the money,it's the principle", remember, it's always the money..
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