Allis G 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=44774
Printed Date: 05 Sep 2025 at 10:34am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Allis G hydraulics
Posted By: John Kenny
Subject: Allis G hydraulics
Date Posted: 31 Jan 2012 at 1:18pm
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I'm still confused about where to start with my hydraulic system on my G even though I was sent a manual from some very nice people from this forum (Thanks Charles and Judy!) I have heard that the PTO needs to be engaged in order to run the system but what I know of as a PTO is not found on my G... is it hidden in the transmission? How do I engage it? Also, I can't for the life of me see how the fluid comes into the hoses, I am told it comes from the transmission fluid, but how? My plan is to replace the transmission fluid but when I have the system drained should I take the opportunity to do something to the hydraulics? AS you can see any advice would be helpful. Thanks so much. JK
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Replies:
Posted By: jaybmiller
Date Posted: 31 Jan 2012 at 3:28pm
You could take a picture of your G on the left side by the rear axle and put it here. That'd help all of us. My G has the PTO pulley,though I think you could have only it or the hydraulics, though someone here WILL know for sure !!
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Posted By: Dave Richards (WV)
Date Posted: 31 Jan 2012 at 3:38pm
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John, the Hydraulic pump goes where the PTO used to go. The PTO engagement lever activates the pump. You can have a PTO only, or A Hydraulic pump only, or you can add a short PTO unit to the pump to have both.
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Posted By: oldironguy
Date Posted: 31 Jan 2012 at 3:44pm
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John, You are correct. No where on the Model G will you find a traditional PTO with a splined shaft to which implements are coupled. On the G, "PTO" means a pulley where either a flat or v belt is driven to power implements.
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Posted By: Dave Richards (WV)
Date Posted: 31 Jan 2012 at 3:50pm
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John, from rereading your post, I gather that you have a Hydraulic pump on the tractor. So I am thinking you don't have the PTO. The engagement lever is short, and attached to a shaft above the pump. The lift lever is under the left side of the seat. the oil draw from the transmission is internal to the pump and transmission.
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Posted By: John Kenny
Date Posted: 01 Feb 2012 at 5:07pm
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Guys, thank you for your patience, what you all are describing to me is what I expected and understood from the manual. So, assuming my internal pump is good and my system is just jammed up what steps should I take to loosen it up? Take off hoses? There is a mechanism (unlabeled in the manual) which seems to control the hoses from the lever (where the control rod from the lever meets the hoses)... Should I take that apart? Or is it a fluid issue?
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