Odd Fendt “feature”?

[hayden]

I came across an odd feature on Fendt tractors. At least it’s not what I have experienced on other tractors.

Say it’s set up with 4 rear remotes/SCVs. If you add a loader, the loader doesn’t get its own dedicated valves, but rather uses the first two rear valves. The result is that with a loader you are now down to two rear remotes instead of 4. On all the tractors I have experienced the loader control valves are in addition to any rears so you never lose rear remotes.

Also, when the loader is equipped with a 3rd or 4th circuit for something like a grapple, there isn’t a 3rd or 4th valve. It’s just a diversion valve that repurposed one of the loader primary functions while you operate the 3rd function. So you can’t lift, roll back, and close the grapple at the same time.

Is this common on other tractors? I am a bit taken back by it.

 

[Farmer495]

Most third functions are a switch on the joystick.

I haven't run a Fendt, I have come across other companies using rear remotes for loaders though. Some of that is just budget of the owner.

 

[oldnslo]

Not familiar with Fendt but since they are a high tech machine and run all electro-hydraulic valves I suspect their may be another diverter type valve or valves involved so can use both loader and rear remotes. The tractor knows where command is coming from for either operating loader or rear remotes.

I could be 100% wrong is this belief though.

 

[hayden]

Most third functions are a switch on the joystick.

I have a switch on my loader for the 3rd function, but it controls a 3rd valve that is independent of, and in addition to the loader boom and curl valves. So I can operate all 3 at the same time in any combination. That's a Kubota. And all the Deere 5 and 6 series tractors are the same way. The loader valves, no matter how many you have, are independent from the SCVs. Deere refers to them as "mid" and "rear" SCVs. But they are all independent from each other. They aren't just additional connection points for the same valve.

Maybe it's a European thing? I would understand if it were a budget tractor, but in all other ways Fendt is considered top-end for features and functions. That's why this was such a surprise to me.

 

[dodge man]

Most third functions do lose a loader function when you operate it, at least on smaller tractors.

 

[hayden]

Not familiar with Fendt but since they are a high tech machine and run all electro-hydraulic valves I suspect their may be another diverter type valve or valves involved so can use both loader and rear remotes. The tractor knows where command is coming from for either operating loader or rear remotes.

I could be 100% wrong is this belief though.

Their manual is clear that if you have the loader connected, it plumbs to SCVs #1 and #2, and that you then cannot use those SCVs on the rear. And I have confirmed this with the dealer, and with his Fendt rep. So I'm quite confident this is how it works.

 

[hayden]

Most third functions do lose a loader function when you operate it, at least on smaller tractors.

OK, thanks. So my L5740 may be a "transition" tractor where the 3rd function is a full function valve and not just a redirection of one of the main functions.

I can also see how a lot of aftermarket 3rd functions would just be diverter values. It's certainly a lot easier to do it that way.

 

[hayden]

What about Deere 3 and 4 series tractors with factory 3rd function on the loader? Anyone familiar with how they work, and whether they are an independent valve, or a diversion of one of the main functions? I know the answer for 5 and 6 series, but don't know about the compacts.

 

[oldnslo]

Their manual is clear that if you have the loader connected, it plumbs to SCVs #1 and #2, and that you then cannot use those SCVs on the rear. And I have confirmed this with the dealer, and with his Fendt rep. So I'm quite confident this is how it works.

Interesting, what size Fendt do you have?

 

[Hay Dude]

I have a switch on my loader for the 3rd function, but it controls a 3rd valve that is independent of, and in addition to the loader boom and curl valves. So I can operate all 3 at the same time in any combination. That's a Kubota. And all the Deere 5 and 6 series tractors are the same way. The loader valves, no matter how many you have, are independent from the SCVs. Deere refers to them as "mid" and "rear" SCVs. But they are all independent from each other. They aren't just additional connection points for the same valve.

Maybe it's a European thing? I would understand if it were a budget tractor, but in all other ways Fendt is considered top-end for features and functions. That's why this was such a surprise to me.

You can, but would there be enough hydraulic pressure/reserve to operate all 3 of the functions?
My AGCOs are the same way as Fendts. The loader “borrows” hydraulic flow from a “T” behind the rear remotes.
IMO, the assumption is there are few, if any times when you would be running the loader at the same time as rear remotes. In addition, there are (2) or more other rear remotes available for rear attachments that are not part of the loader hydraulics.
Most AGCO tractors I see come with a minimum of 4 sets of rear valves, while I see most other brands come with 2. Any more are optional. My 655E has 6 sets of remotes and the armrest joystick has 2 buttons that “split” those 2 remotes in the joystick.
My 535B has a electronic joystick for the loader in the arm rest with a small button on each side that operates a 3rd function (grapple) and a 4th function (hydraulic quick attach).

Pretty slick. Much nicer to operate than a big floor mounted joystick.