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RPM

Printed From: Unofficial Allis
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=192253
Printed Date: 23 Nov 2024 at 2:49am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: RPM

Posted By: NEVER green
Subject: RPM
Date Posted: 07 Dec 2022 at 3:37pm

Does anyone know at what rpm the pto shaft spins the hydraulic pumps on 7040? Removed piston pump, looking to add lift pump for fuel.

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2-8050 1-7080 6080 D-19 modelE & A 7040 R50

Replies:

Posted By: 8070nc
Date Posted: 07 Dec 2022 at 6:10pm

Its somewhere close to engine speed. The piston pump is 2.31 cubic inches per revolution displacement. When you do the math 2300 rated rpm would give you 23 gpm

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1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor

Posted By: NEVER green
Date Posted: 08 Dec 2022 at 8:00am

Thank you, does not have to be exact.

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2-8050 1-7080 6080 D-19 modelE & A 7040 R50