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IH 340 factory 3 pt.

A

Anonymous-0

Well-known Member
Hi, I need some help... I have an IH 340 with a factory 3 pt hitch on it...The linkage for it seems to be a nightmare..only one place to adjust it, but so far, I have had no luck...Anyone have any help for this , or a magic bullet!!! Thanks, Grant
 
If it is a factory 3 point, it is not a nightmare unless the previous owner messed it up. Following are general 3 point comments as I have never been around a 340. It should have a leveling adjustment on the right side (some are adjustable on both sides) along with an adjustable top link. It likely also has adjustments to allow rigid or float, along with chains,etc to reduce side to side sway. By your question, all of the adjustments may be rusted shut.
 
Hi,,Thanks for the reply...my problem is with the linkage from the valve..all the parts on the 3pt itself, work just fine..the problem is in controling it..I have it a an old IH repair place and they are also having problems getting it to work.. Should have been more specific..But Thanks again, Grant
 
As a last resort, the hydraulics can run off of a remote, then it will go up and down, but you lose the advantage of the Tel-a-Depth control, if that is what you are having problems with. I have never repaired one of those. Off of a remote it will be no better than the aftermarket 3 points on the earlier tractors, except that you will have your choice of power up and down or power up, gravity down--it will not return to its former depth, unlike Tel-a-depth. You can put snap on "clips" on the cylinder shaft to limit the downward movement, though.
 
Thanks,, I really appreciate the info...From what the IH guy is telling me,, it's a matter of finding the right adjustment..but even they are having a problem.. This does not have the tel a depth that you are talking about...this has the control lever just like the old 8N...and a rod that goes under the seat and hooks to linkage that goes back to the valve and also linkage to the cylinder..supposedly when the cylinder moves it rotates the first connection and centers the valve...kind of a weird set up,, but it worked at one time...just don't know if I can afford the IH guys charge to figure it out...there is only one place to set the adjustment, but knowing exactly where to set it, will be the trick...Thought I might find someone on here that has delt with this problem and know a good way to solve it.... Thanks again, Grant
 
(quoted from post at 16:21:43 12/03/11) This does not have the tel a depth that you are talking about...this has the control lever just like the old 8N...and a rod that goes under the seat and hooks to linkage that goes back to the valve and also linkage to the cylinder..supposedly when the cylinder moves it rotates the first connection and centers the valve...kind of a weird set up,, but it worked at one time
Click to expand...
I believe if it's like my 240U, this is the Tele-Depth system... there should also be a handle to the left behind the seat that you can adjust up or down in notches to set the sensativity. Also, if it's like the 240U, it does not have chains to control lqteral movement, but a weird linkage on the right side from the bottom of the rear end to the inside of the right arm of the 3 point (or Fast Hitch, if it had that).
 
Hi,,, Thanks for the reply...I guess I need to learn how to do this..When I get the tractor back, I will take some pics and post them to go with a new thread...This one has a control on the right side that looks like the 8n unit,,the linkage goes under the seat and then both forward and backwards..the front to the valve and the back to an eccentric gear.. I think pics will help...as I know someone out there has this same unit set up...but again,,Thanks so much for your reply... I really appreciate you taking the time to try and help!! Grant
 
If you don't have a parts or service manual you might look at the parts section of the www.caseih.com and compare the tel-a-depth linkage to yours. If the control is by the seat you have a 340 utility, I believe all those had tel-a-depth but I'm not absolutely sure.
 
Thanks again... When I get the tractor back,,,assuming they have not been able to fix the problem.. I will take pics and repost this, with hopefully, better questions...The whole thing depends on that one adjustment and I am hoping that someone can tell me what I should be looking for when I adjust it...Thanks again, Grant
 
There are a couple problems with getting you answers.

1) We don't know which system you have. Is it 3-point Fast-Hitch or a 3-point commercial hitch? Do you have cable linkage, solid linkage or cable converted to solid? You need to either study the parts catalog until you can answer those questions or post enough pictures so somebody else can telll you. I think both hitch systems had Tel-A-Depth, so maybe your system has been modified.

2) What problem are you trying to adjust out of it? You keep mentioning that you only have one adjustment available. But you have not given any clue as to why you need to adjust anything. What is wrong with it?

Depending on what version you have and what your problem is, there may not be a good solution. Once there is too much wear, they can't be made to work properly and replacement parts are impossible to find or way too expensive.
 
Hi Jim... Thanks,,,, Kind of got this from the first couple answers...I have the tractor at an IH repair shop..they haven't been able to fix it yet either...if they can't, as soon as I get it back I will take pics...figured that is what I should have done in the first place...This has the 8N type control lever..the rod goes under the seat and then towards the front, where it goes thru the sheet metal again and then hooks to the rod that comes from the valve..another split goes towards the rear as it comes thru the seat from the control lever...it is an eccentric gear that lets the cylinder stop at the right place...Where it hooks to the lever from the control valve there is a yoke that is threaded...and that is the only place you can adjust this..The problem is that without this linkage in the right place,, the cylinder either goes all the way up, or all the way down...and lifts the rear of the tractor off the ground!!!! ..At this time, I will probably wait until I get the tractor back and then take pics and repost this...Thanks again, Grant
 
I have a hunch your problem has nothing to do with that adjustment. The feedback of rockshaft position isn't working. Go to the CaseIH online parts catalog for the 340 and look at drawing 260 under drawbar and hitches. Does that look like your system? If so, I suspect the problem is somewhere in item reference numbers 10 through 24 of that drawing. Excessive wear anywhere (and everywhere) in the system could be the root cause too.
 
Hi Jim,,, Looks like it..I know they have to replace the friction disk as it won't hold...The rest of the system seems to be pretty tight..I will see if they are able to do anything with it and then go from there....Thought about changing it to another type controller, but I hate to do that.... Thanks again, Grant
 
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