Farm Equipment - ? D-17 Ser.IV Hydraulics

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? D-17 Ser.IV 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=36503
Printed Date: 24 Aug 2025 at 7:43pm
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Topic: ? D-17 Ser.IV Hydraulics

Posted By: Pat the Plumber CIL
Subject: ? D-17 Ser.IV Hydraulics
Date Posted: 31 Aug 2011 at 9:24pm

On the back of my D-17 SIV there are 2 female hydraulic coupings on the right side(facing the back),there are 2 holes in sheet metal on left side.On other D-17 SerIV's I have seen 2 female hydraulic couplings plumbed in on both sides.
I have only used one side for the rotary mower.I replaced one on the far right side so it will match my hose end.Is the other one that I have for a "Return" or will it lift another cylinder at the same time?The other sets I have seen on other tractors,Are they for fluid to flow both ways or are they "Returns" for proper Two way hydraulics?
Sorry I do not mean to make an easy question difficult.I have never worked with 2 way hydraulics., everything I worked only had single acting hydraulics.

Thanks for any help ahead of time

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You only need to know 3 things to be a plumber;Crap rolls down hill,Hot is on the left and Don't bite your fingernails

1964 D-17 SIV 3 Pt.WF,1964 D-15 Ser II 3pt.WF ,1960 D-17 SI NF,1956 WD 45 WF.

Replies:

Posted By: Unit3
Date Posted: 31 Aug 2011 at 9:35pm

The two you have on the right side is for a two way cylinder. The other tractors you have seen with another two on the left is a second remote for a second two way cylinder. Sounds like you are using a one way cylinder and that is fine.

We do the samething with our 7000 to run the batwing mower. It has three - one way cylinders. We tied into the 3pt hose to power the third cylinder.