Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum
:

1720 auxiliary hydraulic pump

Welcome Guest, Log in or Register
Author 
Russ

11-28-1999 09:15:34




Report to Moderator

I`m looking for advice on how to add an aux. pump to my tractor. I`m familiar with pto pumps, but what I really want is a pump which will supply pressure greater than 2000psi, such as the Prince pumps. I have a small backhoe which will benefit from more flow, but I really need the pressure. The guy I bought it from says he ran it at 3000psi. I`d probably be happy with 2500. Can the output press. of pto pumps be increased? Can I mount a pump on the crank and use the existing hyd.res./tranny? Don`t really want a clutch pump, but haven`t ruled one out. I would welcome any suggestions, especially those with specific knowledge. Thanks

[Log in to Reply]   [No Email]
Bern

11-28-1999 09:51:58




Report to Moderator
 Re: 1720 auxiliary hydraulic pump in reply to Russ, 11-28-1999 09:15:34  
There are PTO pumps out there that will operate at a pressure higher than 2000 PSI. Just call your local hydraulic shop and ask, they should be able to locate one.

Although I have never done so, I would think that mounting a crank driven pump to the front of the tractor would be difficult and prove to be not worth the trouble. Also, while you could draw from the reservior, you would face two problems: 1) finding a suitable inlet, both large enough and in the right spot and 2) there is no hydraulic cooler on these tractors, so heat generation could be a problem unless you run some VERY generous sized lines.

I would look into the PTO pump option again, preferably with a remote reservoir. I think this would be the easiest and most practical.

I would be VERY leery of cranking up the relief setting on that backhoe above rated, unless you like to weld frames and repack cylinders.

[Log in to Reply]  [No Email]
Russ

11-28-1999 14:49:34




Report to Moderator
 Re: Re: 1720 auxiliary hydraulic pump in reply to Bern, 11-28-1999 09:51:58  
Thanks for the feedback Bern.I had considered the heat aspect, but I figured if I could find a way to plumb back to the tractor`s reservoir, I`d be able to find some sort of aux. oil cooler.I`m not really wild about putting the extra drag of another oil pump on this small engine on a continual basis either, but I realize that I will probably have to compromise on some aspect of this "upgrade". I`ve already tried the local tractor shops as well as Surplus Center and Northern, and I haven`t seen any pto pumps rated higher than 2000psi.Got any ideas? BTW, was not considering tampering with the backhoe or tractor PRV. I`m running on the tractor hydraulics and it seems like I`m always on the tractor`s relief valve.Squeals alot. 1720 makes 2150 psi per manual. Previous owner "claims" he has "field tested" this hoe at 3000#.I realize that it`s not a real backhoe, but I know it could work alot better with a little more juice.

[Log in to Reply]  [No Email]
Bern

11-28-1999 15:09:38




Report to Moderator
 Re: Re: Re: 1720 auxiliary hydraulic pump in reply to Russ, 11-28-1999 14:49:34  
Seems to me like I've seen those PTO pumps rated at around 2500-3000 PSI in the past. I don't have any info here at home, but I'm sure you just need to call around to any reputable hydraulic shop in your area and tell them to start looking!

As for the relief setting, what's the b-hoe rated to take as per the manual for it? If it's only 22-2300, I don't see a big problem with bumping up a 2000 PSI PTO pump just a tad.

I don't know what kind of b-hoe you have, but we here sell alot of those little things, both Fords and Woods. 90% of them run on the tractor hydraulics.

[Log in to Reply]  [No Email]
Russ

11-29-1999 06:19:06




Report to Moderator
 Re: Re: Re: Re: 1720 auxiliary hydraulic pump in reply to Bern, 11-28-1999 15:09:38  
It`s a Du Al, model 106, I think. I don`t recall seeing any pressure spec in the manual, however I may have missed it. Maybe I`m being simple here, but what are we talking about when we talk about jacking the pressure on a pto pump? Dialing in the PRV for the pressure you want? BTW, Du Al is now owned by Woods, probably already knew that huh. Thanks again for your input Bern



[Log in to Reply]  [No Email]
Bern

11-29-1999 07:47:08




Report to Moderator
 Re: Re: Re: Re: Re: 1720 auxiliary hydraulic pump in reply to Russ, 11-29-1999 06:19:06  
Yes, there should be a pressure spec listed somewhere in the book I would think. Otherwise call Woods/Dual.

As far as turning up the PTO pump, this is something I've never done on one of these, but I can't imagine it would be too tough. Likely either shim or adjustment screw adjustable however. I wouldn't go more than 2-300 PSI however. Keep looking for a higher rated pump though, I know they're out there. It would be preferable to buy a higher rated pump and have to turn it down, as opposed to vice-versa.

Hope this helps. I have to duck out of here for the rest of the week.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy