3000-4000 series loader operation

[pbt_sisson]

Can someone tell me why john deere puts a single function valve on their loaders for the 3-4000 series cut's?
I have looked at both extensively and want to buy one. I have demo'd 2 machines and like everything about them except the loader valve!!!
Why can't I lift and curl or lift and dump at the same time?
All kubotas and other bobcat machines I have run will do 2 functions at the same time.
I am told that I need a regenerative loader valve?????Can anyone solve this dissapointing issue?
How is it that john deere has been building tractors forever, but they won't let the loader on these cut's do 2 things at once????

Please help with suggestions
Thanks. Paul

 

[ScottK]

That doesn't make sense. What tractor/loader models specifically are you looking at? They should have dual-scv valves with regen on them. I can't imagine anyone would buy one without it.

 

[DreaminGreen]

Thats funny I can raise and curl at the same time, just need some rpm's for good hydraulic gpm.

 

[shot_gun]

What I want to know is where was your salesman? Both the 3000 and 4000 series tractor and loader WILL dump or curl at the same time wile raising or lowering. They both have a selectable features where you can select to be in regenerative position or not or locked out all together. It's the little three position lever under the joystick valve. This is why the salesman should always be at the demo. If he was and didn't have an answer I pity them. Ok I'm done now. Sorry.

 

[kennyd]

I agree with everything that's been said. JD does indeed use 4-way valve with the curl circuit having regen.

To read more about REGEN click HERE

 

[radman1]

There is a little, black metal piece of iron under the control valve on the cab models) that the operator can move to limit the function of the loader control valve. I suspect it is in the wrong postion.

 

[pbt_sisson]

I have been to 2 large different jd dealers in va. Both dealers tell me and show me that the loaders on the 3000 and 4000 series cab tractors will only do one function at a time. If I have the rpms at pto speed, and if I just get the joystick in the sweet spot between lift and dump, or lower and curl, the machine will respond, but the hydraulics are slowed down to almost a crawl. This has happened on all tractors in this line I have started at the dealerships and the 2 3720;s I have demo'ed.
I would be extatic if there is a way to do both functions at once. Maybe my salesmen are idiots!!!
Can you tell me about this lockout or loader switch that can be switched or adjusted under the joystick??Where is it? What does it look like?
What position does it need to be in to allow for both functions?

 

[shot_gun]

It looks like a little "L" lever. The "L" is facing down and it should be close to your right knee when you are sitting in the seat. If memory serves me correctly it should be all the way back to be in regenerative position. There is a decal on the side cowl that tells you where to put it. you can watch the cab video on Deere's web site and it shows the loader being used for more than one function at once.

 

[pbt_sisson]

I thought that the piece you are describing is the lockout lever for the loader.
I hope I am wrong, but I can't believe both dealers and many salesmen later don;t know about this adjustment you are talking about.

I did watch the jd video. It is hard to tell how fast the loader moves in two ways at the same time. Raise and dump, or lower and curl.

I even called john deere cust service and tech support about this matter. They even told me that the loader will only do one function at a time?!?!

I hate to be such a pain, but is there more tan one setting for this L bracket by the joystick. What does each setting do? Is there any specifics I can download to show me this before I take the plunge and spend approx 34000 dollars for a loader I don't like.

Kubota has arrow signs on all loader sticks i've used. Twleve oclock for down.Six for up.THree for dump and nine for curl. BUt than you can pull the joystick to4:30 for raise and dump. 10:30 for lower and curl. ETC.

I will have to visit my dealers again. I even went into their extensive shop area and discussed this matter with an experienced line tech. He told me that the loader would only do one thing at a time w/out slowing the hydraulics down to a crawl.
Any other thoughts or literature would be appreciated.

 

[Nuru]

Sounds like something is wrong and a configuration issue is what it seems like. My 3520 doe both and it is not slow as I have inadertently dumped some material by fooling around while lifting it. The loader worked the same on both my former 4310 and the current 3520.

 

[JasonMac]

Take it from me, the loader is multi-functional.... I would absolutely hate my loader if it weren't. It does all the functions... I can raise and dump, raise and rollback, lower and curl, lower and dump... all in one fluid motion... If you watched me use my loader, you would swear it had a self-leveling feature on it, because you get good at raising and leveling your bucket at the same time, in fluid motion.... so yes.. I'm afraid to say the people you talked to don't know what they are talking about....

 

[Jomo45]

I have had this problem since day one with my 3320, it is an inherent problem with the 3x20 series (also 4x20?). Various have said their tractor does not have the issue, never seen proof. Yes you can get them in the "sweet spot and get a slow version of simultaneuos functioning, this is nothing like the true blending available from most other manufacturers. I had the Deere zone rep out with the service manager to no avail, was basically told that's the way it is....
This was previously beat to death here
http://www.tractorbynet.com/forums/...15-3320-w-300cx-fel-wont.html?highlight=300cx

 

[pbt_sisson]

Thanks guys for the feedback. JasonMac (and others) I would love to know the year of your cab tractor,model/ and possibly the dealer from whom you purchased your machine.
I really like all aspects of the 3720 cab model except this loader issue.
People are all over on this issue./Some tractors will do it . Some won't.
And the dealers and John Deere customer support are no help.

It feels like to me that jd used only a 4 position valve---12,3,6,9---as opposed to a 8 position valve-12,1.30,3,4.30,6,7.30,9,10.30..
Can I purchase a 8way loader valve to accomplish what I want?
Any part #'s???

Please help. I am about to buy orange because the loader operation bugs me so much.

 

[radman1]

I have a 2006 cab 3720. The loader valve works like it is suppose to. Works in multiple functions/directions. You won't have any issues with the valve. I have a 1993 JD 5300 and that valve will only work one set of cylinders at a time and yes it is painful to use. You will be happy with the 3000 series cab loader hydraulics.

 

[JasonMac]

My 3720 Cab was one of the first ones that came off the line. I picked it up, December of 2005. It works perfect, the way it should work. I am a very experienced operator, of Case Backhoes, John Deere Backhoes, and have had John Deere Models... JD855, JD4200, and now the 3720 Cab... so I know how loaders are supposed to operate and of course I know how to feather hydraulics, and like I've said before it works the way it should. But check the joystick lock that everyone else has told you about, if it is in the wrong position you won't be able to feather the functions.... also as with most machines at idle, feathering doesn't work so well, you need to be at least somewhere near half rpms on your gauge....

I should just do a youtube video of it, so once and for all I can prove the valves do what they are supposed to do... so that will end all doubts.

 

[Millalien]

I can do both functions at the same time with my 3320/300CX. The motion control is not as smooth and responsive as some loaders I've used, particularly bigger tractors with seperate lift and curl levers. The combined motions with the 300CX are also slower than just doing one or the other, but it's doable and it's an acquired skill.

 

[Willl]

so that will end all doubts.

I wouldn't count on it.

 

[Jomo45]

Good luck, my advice is to try the actual tractor you intend to buy before signing the dotted line.

And Jasonmac - I also have over 15 years operating all types of tractors/backhoes, I do know how a loader is supposed to operate, the non-cab 3X20 series does not blend properly.

 

[JasonMac]

Good luck, my advice is to try the actual tractor you intend to buy before signing the dotted line.

And Jasonmac - I also have over 15 years operating all types of tractors/backhoes, I do know how a loader is supposed to operate, the non-cab 3X20 series does not blend properly.

He asked me in a previous post about the Cab Tractor. Not the Open Station Tractor. Thank You

 

[IslandManMitch]

I used a new 4000 series today with forks to unload an 18 wheeler of sod. I could raise or lower while keeping the load level with ease. My 4600 is the same.