(800) 853-2651
SHOP NOW

Farmall M Hydraulics

M

Mad340

New User
I have a 1952 M with belly pump. Last winter I dropped the pump and changed out the main seal by the drive dog. It still leaked a little. When I had
the M hooked up to a Haybuster 77C no-till drill I could only raise the drill for about a half hour of operating time, After the oil got warm it would
not lift it high enough. I am looking into using a pto hydraulic pump with separate tank and control valve this year. Do you think that is my best
option or should I look into a live pump or try to re investigate the belly pump? I think i might need 1500 psi to raise the drill. I can't go to a
bigger cylinder because its the county's drill. Thanks
 
First, the old M hydraulic pump was designed to function on 30 wt. non detergent motor oil, not hydraulic oil, so that could be your lifting problem. Second, I have rebuilt several of these pumps and have used a speedi sleeve twice to build up the shaft for a new seal. I know exactly what a hassle it is to remove the belly pump, but I would redo it with the sleeve. Ellis
 
I am in the process of right now,of building a tank to sit, where the battery belongs ,and the battery is going under the seat, but i have had the live pump on their for years, but making it bigger,so it's got the volume for bigger cylinder etc also hope the oil will stay cooler. I am using the belly pump for a reservoir now, i know it sounds foolish for a 68 yr old tractor but it's in perfect shape, got a disk and plow for it.
 
If you get 750psi from a well used belly pump with Hytran or tractor fluid in it you are lucky. The PTO driven pump is your only real choice. A different possible choice is to use 2 cylinders as a pressure booster. Use a small cylinder just a little longer than the one on the implement, and a second cylinder with a diameter about 50% greater. Attach them on a channel iron facing each other so the bigger is hooked to the M and the smaller to the implement. The size difference makes the pressure. Jim
 
No,it's not "foolish on a 68 year old tractor".That old tractor will do everything that a newer one will do,probably more reliably too.I have 4 M/SM/400 that all see regular trouble free use.So...I think I'm continueing to use that 'old' tractor for a very long time.The bigger/newer ones just do the heavier seasonal work.The 'old' ones work all year round.Plus,they are all pd for.
 
If you go to a live pump with the belly pump as a reservoir, remove everything from that belly pump and ventilate it so the return hydraulic fluid doesn't blow all over the tractor. I answered am add for an M live pump for $100. His M was used for mowing the county right of way and that's it. It was a nice M preserved in hydraulic fluid and dirt! And he was only 3 miles away!
 
You must log in or register to reply here.

Similar threads

E
Farmall m belly pump to reservoir
Replies
5
Views
357
used red MN
U
M
Farmall M belly pump oil
Replies
3
Views
217
rustred
rustred
M
Farmall M belly pump
Replies
3
Views
263
the tractor vet
T
S
Another M hydraulic question
Replies
2
Views
475
D Slater
D
S
M belly pump coupler question
Replies
5
Views
475
BarnyardEngineering
BarnyardEngineering
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.

Copyright © 1997-2024 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

Back
Top