(800) 853-2651
SHOP NOW

1946 M Hydraulics

B

blohr

New User
I have a 1946 M that was converted to live hydraulics. I can get the cylinder to extend (using one hydraulic line only), but I cannot get the cylinder to retrack. It has a number of ports that I have hooked into the top part of the cylinder, but it still won't retrack. Hoping someone can point me in the right direction.
I can email pictures if you would like to see the control and ports.
 
It needs force to retract.Either gravity(implement wt) or a spring.It wont do anything just laying on the floor 'naked'.Email or post pics so we can see if its plumbed right.Steve
 

Here are some photos I took of both sides of the tractor. Thanks for your help.
a139795.jpg

a139796.jpg

a139797.jpg

a139798.jpg

a139799.jpg

a139800.jpg
 
wow, you have a lot going on there. it looks like you have a char-lynn valve on there. the live pump is feeding in thru the top of the valve. then the return is the pipe that is hooked to the fluid fill port directly under it for the belly pump. the port with the t in it is one of the pressure supplys for the cylinder. the other port that is piped in to the side of the belly pump is the other supply for a two way cylinder. who ever did the conversion prolly installed an m+w live pump kit, and it uses the belly pump as a resevoir, the actual lift all pump is removed and a block off plate installed. i am guessing your tractor is set up for one way hydraulics. on the char lynn v-960 valve, which is the one i think you have, there are internal mods you can do to the valve to also make it a one way valve. i do have an owners manual for that valve, if you want a copy of the manual, emmail me and i can scan it for you.
 
Couple things that I see that could cause the problem.I think its building internal pressure.Return unused port to the main return line.Or take that hose down to the belly pump drain.If it's a oneway valve,simply plug the unused port.Do you have the cylinder hooked to an implement,or simply laying on the floor.Is the 'backside' of the cylinder vented or plugged.It needs to breath.Call me so we can discuss this further. (970)417-1178 Steve
 
You must log in or register to reply here.

Similar threads

E
Farmall m belly pump to reservoir
Replies
5
Views
438
used red MN
U
O
Farmall M Hydraulics
Replies
3
Views
324
Janicholson
Janicholson
G
1951 Farmall H - no Liftall
Replies
13
Views
459
NY 986
N
S
Farmall C hydraulics
Replies
2
Views
234
Smarten_up
S
A
JD 3020 Hydraulics
Replies
6
Views
435
Fixingfarmer
Fixingfarmer
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