(800) 853-2651
SHOP NOW

340 Hydraulic issue

J

Jaybird2

Member
Hello folks,

I"ve got a 340 rowcrop. Over the winter the pump went bad and I found that the whole system was full of crud. Replaced the pump and had the hydra touch control valves broken down and rebuilt, replaced the filters, got it all back together and primed the pump and it now works, sort of.

One control valve seems to be open, even though the lever is in the neutral position. I can hear the tractor under load. The other valve works as it should.

Is there an adjustment I can make or is something put together wrong? My guess is that the valve was put together wrong, but I didn"t think that was possible... I"d really hate to take it all apart again. just wondering if you guys might have run into this before and might know what to do.

Jay

Duelm, MN
 
Well, I can tell that the tractor acts like it's working harder as if the control valve is open and it's calling for fluid.

Thanks,

Jay
 
It looks like the same problem I am having with my 350u that I wrote in on acouple of posts ago. Do you have PS or a frt loader and is it being affected. Keep in touch.
 
This may not be the answer, but it very suspiciously sounds like the orifice and/or orifice screen is plugged. I am not familiar with a 340, but I suspect the hydraulic system is akin to what is on a 460/560.

If this is the case, then go to our website: www.oldoakfarmalls.com and click the link on the left "Fixing 60 Series Hydraulics."

I hope this helps.
 
I have PS (not affected). The other control valve works as it should so I think the problem is limited to just this control valve. The whole system was cleaned, new filters, screen is now clean as a whistle.
 
The reason I asked about PS is I think one of those valves from your hydro touch feeds the ps gear box. On mine my hydro touch works if the steering is turned but if it is not turned then it sounds like it is under a load and at times mine pressurises the tank. You say you have 2 valves, I think 1 runs the 3pt up and down but what does the other run?
 
You must log in or register to reply here.

Similar threads

P
340 hydraulic issue
Replies
3
Views
269
Janicholson
Janicholson
J
MF 255 3 point raises by auxiliary control
Replies
4
Views
213
Jgreen0890
J
P
Trouble diagnosing hydraulic issue
Replies
8
Views
471
rustred
rustred
C
986 steering hand pump seal change gone wrong
Replies
4
Views
290
caterpillar guy
C
D
1950 8n hydraulic issue
Replies
3
Views
162
wore out
wore out
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