D17
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=29260
Printed Date: 04 Mar 2025 at 12:46am Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D17
Posted By: Loyd
Subject: D17
Date Posted: 17 Apr 2011 at 9:12am
Hey Everyone, I am new here my name is Loyd. I just bought a '59 D17. What size implements should I get for this tractor? The rear wheel measurement is 6' o/s to o/s. Will this handle 6' stuff? This is my first tractor, runs great and is tight, I used to operate backhoes and bulldozers but I don't know much about farm tractors at all! Thanks! Loyd
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Replies:
Posted By: Jim NEIN
Date Posted: 17 Apr 2011 at 9:21am
Welcome,don't know what your plans are but it will handle a 3 bottom plow or a 10 or 12 ft. disc with ease. good luck with your new toy.
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Posted By: DaveKamp
Date Posted: 17 Apr 2011 at 2:34pm
Yeah, it'll pull three bottoms. Look over the draft gear closely, and compare it to the other D17's you'll see on the site. There were 4 versions (Series) of the D17... the last, Series IV, had a stout Category 1 three-point... but the first ones (not labeled, but referred to as Series 1) had a snap-hitch system and ONE high-pressure/low volume hydraulic circuit to operate the lift arms. There was an auxiliary port that could be used to operate a remote device consisting of a single-acting cylinder, and the rear lift mechanism shared that circuit. Later series had additional hydraulic circuits.
The factory snap-hitch implements reportedly worked well... they're easy to identify, because they have an integral drawbar with an oval-shaped 'pintle loop' in the end that connects to the snap-coupler inside the big metal 'bell' under the tractor. The 'Traction Booster" control system would modulate the coupler bell's position to change the implement's 'bite', so that if the tractor bogged down, it'd take a shallower cut and keep the tractor moving.
If yours is an early series, using an Allis-Chalmers snap-hitch implement would be the quickest and easiest way to get dirt turning fast. Otherwise, you could fabricate a Category 1 three-point hitch and use modern 3-point implements... you probably wouldn't get the use of the 'traction booster' system, even if you did make the lower end of the 3-point kit to connect to the lower coupler.
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Posted By: Loyd
Date Posted: 17 Apr 2011 at 2:48pm
Thank you for the info...it is a series 1. I want to bushhog, box blade and later put a front loader on it. Just light stuff oh yeah, tiller also. I am looking forward to learning a lot of stuff here. My philosophy is: "Just treat me like a functional illiterate, that way you won't leave anything out." I probably bought a little big for what I need, but my grandpa used to put me on an allis when I was 6 and let me disc and drag, I still remember that bright orange tractor tearing up that dirt! Loyd
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Posted By: Loyd
Date Posted: 17 Apr 2011 at 2:55pm
So....can I "tap in" to the hydraulic pressure line to a manifold and operate other stuff? Just dump it back in to the reservoir? Loyd
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Posted By: Brian Jasper co. Ia
Date Posted: 17 Apr 2011 at 5:14pm
It won't know a 6 foot bush hog is there in most conditions. I wish I was good at posting pics cause my 58 has a pair of double acting valves on it. They tapped into the remote circuit and used a return line.
------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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Posted By: Loyd
Date Posted: 17 Apr 2011 at 11:00pm
Thanks Brian, I think that would work fine (hydraulics). I am just so ignorant about this kind of stuff...implements etc.. I will learn though! Loyd
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Posted By: DaveKamp
Date Posted: 18 Apr 2011 at 11:07am
Yes, you certainly can tap into that one circuit and use it to operate a manifold of single and double-acting cylinders, but there's a few things you SHOULD know...
If you tap in downstream of the rear lift control valve, you'll need to have the lift lever held in the 'up' position to get flow.
The rear lift cylinder will raise up.
Next, the output will be high pressure (upwards of 4500-5000psi IIRC) and low volume (2-3gpm or so).
You'll need to provide a return path to reservoir from your valve manifold...
You'll need to be able to 'shut off' your manifold for those circumstances when you want the rear lift cylinder to function normally.
You could tap into the system upstream of the lift lever and have it 'live' all the time, but I THINK the way the rear lift system works, you might need to use a 'closed center' valving system in order to keep the rear lift working... that, or have an additional valve on your manifold to operate a single-acting cylinder, and pipe that to the rear lift.
But the most important note that comes to mind... if you're planning on running modern implements, using the D17 S1's hydraulic system to run modern implements, you'll have pretty slow operation... and might have some blown-out seals.
This is because modern implements operate using lower pressures (2500psi or so) and substantially higher volumes (8gpm is 'small', 12gpm is moreish normal, and 20gpm is fairly common).
Running new implements on the old system means your bigger implements (like a modern full-hydraulic loader) will be very slow.
The D17 is an awesome hoss... like you, my first driving experience was raking hay with my grandfather's D17 Series 1. The deep purr of the AC big 4 is what I hear whenever someone says the word 'Tractor'. You didn't 'buy too big'. For being 57hp, it's actually small, very maneuverable, and heavy enough to tackle serious work without stress- you'll like how well it handles, particularly with implements, and as noted, it won't notice a 6' blade swinging off the PTO.
If you're serious about fitting it with a loader, I'd suggest you skip the manifold and plumbing exercise, and look to doing it with a larger-volume manifold, setting up a live hydraulic pump off the front end of the crank, and either adding an external reservoir, return filter, and plumbing, or using the transmission case as your reservoir. I'm working on a similar setup, as I've got a small backhoe attachment that I'll be setting on and off my Series 1 to do all sorts of digging in my yard. Many guys have done this, and many aftermarket implements came with similar kits... Keep watching, I'll post pictures of how I do it.
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Posted By: David Gibson (OH)
Date Posted: 18 Apr 2011 at 11:22am
Welcome to the forum Lloyd and congrats on your D17.
------------- David Gibson http://www.darkecountysteam.com" rel="nofollow - http://www.darkecountysteam.com 1956 WD45
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Posted By: Brian Jasper co. Ia
Date Posted: 18 Apr 2011 at 2:37pm
Isn't the low volume high pressure system 3500 psi? Dave is right about having to have the lift lever up to have pressure. I'm wondering if the valves someone used are closed center. They tapped in right at the transport valve on mine.
------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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Posted By: CTuckerNWIL
Date Posted: 18 Apr 2011 at 2:47pm
Brian Jasper co. Ia wrote:
Isn't the low volume high pressure system 3500 psi? mine. |
The unloader valve can be set to just about anything you want. My 45 got a new spool in the unloader and it by passed at over 9000psi. I took it apart and found an uncut 1/4 in deep c'bore, that would be like adding a 1/4 in of shim to the shoulder. It now dumps at around 2800psi.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Posted By: LloydCentWi
Date Posted: 18 Apr 2011 at 3:17pm
Hey, do people spell your name Lloyd? I ask because most people spell my name Loyd.
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Posted By: Loyd
Date Posted: 18 Apr 2011 at 9:19pm
Most people spell my name with two "L's" yes....I just tell them my mother didn't stutter. No offense to your Mother of course. :) Thanks for the hydraulic info...I probably won't mess with it...I just picked up a very old HEAVY 6 to 7 foot blade...it tilts, slants plus all the other things a blade does...it is an old Ford pipe constructed blade. I am pretty strong....I cannot pick up even one corner of it. The D17 doesn't even act like it is there. I got it for $225.00. I also picked up an old Woods 6' pull bush hog. I cannot believe how heavy and big it is...need just a little work. It is the kind that has car tires on each side that sets the height. Got it for $200.00 can't wait to put it to work. Thanks for the congrats, every time I start the D17 up I like it more. I am looking forward to seeing the details on the hydraulic conversion. Thanks a lot guys, Loyd
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