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
:

Re: Farmall H lift all Hyd.

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author 
john d

03-17-2002 06:28:45




Report to Moderator

Steve C and The Red gave you good information. What else you need to know is: use NON-detergent SAE 30 oil in it, and the dipstick that came in it is apt to be missing. I don't remember how much it holds; probably around 5 quarts or so. Hydraulic fluid may be used instead of SAE 30, but it tends to be thinner at higher temperatures, so you may lose a little pressure if using it.
The front port on the left and the port on the right side are on the same circuit. The rear port on the left side is a "delayed" circuit, designed to lift after the front circuit so it lifted rear cultivators at roughly the same place the front units were lifted when operating in 3rd or 4th gear. If the front ports are capped, the rear port lifts without delay. All three ports are OUTLET, and are used with single-acting cylinders. The hydraulic system lifts, and gravity lowers! No extra return line from the cylinders is needed; just a "breather valve" in the end which does not receive pressure. Oil flows from the port to the cylinder when the control rod is pulled, and flows back from the cylinder to the port when the rod is pushed all the way forward. When the rod is left in the half-way position with the little tab on the bottom of the rod hooked on the support bracket, it will hold pressure in the cylinder. There should be a little spring clip on the bracket to hold the rod in place when it's in the middle position. These springs have a fairly short life and yours may be missing. Be advised that if it's missing, a hard bump in 4th or 5th gear can "jump" the control rod out of position and lower the load when you don't want it to! For double-acting, or two-way cylinders, you need some additional valving. This can be done; do a search for info on this site if you want to know more about that.
If the oil is kept clean (always clean the connections well before coupling and un-coupling the hoses) these systems will last a long time. I have a '49 M with a pump that hasn't been apart since we got it '52, and it's still a good one.

[Log in to Reply]   [No Email]
[Show Entire Topic]     [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