3 point moves up and down with loader

[jokergerm]

So my box scraper started to move up and down about 2 inches when i use the loader valve??

I have never seen this and neither has my dealer.

So when i go to pick up some gravel with the loader, the box scraper goes up or down. When i go left on the loader valve the Box scraper goes down when i goto the right on the loader valve it goes up on the 3 point hitch

The dealer was stumped and they are working on it now

any ideas?

its the tractor in my SIG

 

[kubotacres]

So my box scraper started to move up and down about 2 inches when i use the loader valve??

I have never seen this and neither has my dealer.

So when i go to pick up some gravel or dirt the box scraper goes up or down left on the loader valve the BS goes down right on the loader valve it goes up

The dealer was stumped and they are working on it now

any ideas?

its the tractor in my SIG

I've seen where others had the 3pt hitch jerkyness fixed, but it effected the FEL... Since I don't have a FEL mine is perfectly smooth. I'm sure others will chime in on this.

 

[jokergerm]

What?

No the 3 point is not jerky, I was the first guy on here to get my 3 point adjusted by the dealer. So my 3 point hitch is smooth as glass when i go up slowly

I am talking about when i use the loader curl function my 3 point hitch literally goes up and down when i curl the bucket in the front on the loader

Maybe i mis read what you posted

 

[kubotacres]

What?

No the 3 point is not jerky, I was the first guy on here to get my 3 point adjusted by the dealer. So my 3 point hitch is smooth as glass when i go up slowly

I am talking about when i use the loader curl function my 3 point hitch literally goes up and down when i curl the bucket in the front on the loader

Maybe i mis read what you posted

I understand your hitch is fixed. However with the fix comes other issues....Like your FEL. From your inital post you stated " So when i go to pick up some gravel with the loader, the box scraper goes up or down". This is one of the drawbacks from the control valve being adjusted, or as I have read in several other posts. I can't confirm this being I don't have the FEL..

 

[jokergerm]

I understand your hitch is fixed. However with the fix comes other issues....Like your FEL. From your inital post you stated " So when i go to pick up some gravel with the loader, the box scraper goes up or down". This is one of the drawbacks form the control valve being adjusted, or as I have read in several other posts. I can't confirm this being I don't have the FEL..

oh ok, sorry just wanted to make sure we were on the same page

its strange this just started, its beeb working great ever since i got it adjusted last year, this just started last night so i figured something must have happend to it

 

[k0ua]

Hmm.. this is exactly the condition that Chilly807 ( who is a mechanic by trade) ran into when he tore into the 3pt adjustment. he could never find a sweet spot where the hitch stayed silky smooth and the FEL was not affected. So he set the hitch adjustments back to factory and gave up. I wonder if your dealers mechanic found a spot originally where they could get smooth 3pt ( I have seen your video) and still not be affected by the upstream diversion of pressure from the FEL? But now with a little wear, the adjustment is so critical that the "sweet spot" is now gone? Interesting.

James K0UA

 

[huskerhayman]

I have an IH 684 that does this. When I first got the tractor the loader was plumbed through the rear remotes and it was fine then I put a power beyond plate on it and it started to jump. Either it got better or i don't notice it as much anymore. Everything else works good so I just live with it. It has been that way for several years now.

 

[jokergerm]

well if they dont get this fixed im going to be making them give me a new tractor or an upgrade to a grand L

This is ridiculos, i have had my l3800 at the dealer 10-15 times since i bought it last june and im not at 50 hours yet

im getting a little sick of all these issues

 

[LD1]

Yep, its the same issue Chilley807 and myself faced when trying to adjust.

Your "smooth" hitch is a result of the hydraulics being in a dynamic balance. Any thing that changes the pressure or flow of the system (RPM change or FEL use) changes that dynamic balance and your 3PH moves as a result.

this thread is VERY long but will explain everything http://www.tractorbynet.com/forums/.../233308-l3400-3-point-hitch-adjustment-7.html

Good luck with getting your dealer to do anything. If they do, you have one outstanding dealer.

BTW, is this the first time you have used the FEL with something on the 3PH, or just the first time you noticed it, or is this actually the first time it has done it???

Also, with the blade on the back raised about mid way, and the tractor at idle, rev it up once. What does the blade do??

 

[jokergerm]

no its the 1st time its done this ever

i noticed it cause it shakes the tractor, like the jerky 3 point used to

its really pissing me off, its at the dealer now. Im just waiting on a phone call.
i use the loadere with the box scraper on it all the time and ive never had this issue

 

[LD1]

no its the 1st time its done this ever

i noticed it cause it shakes the tractor, like the jerky 3 point used to

its really pissing me off, its at the dealer now. Im just waiting on a phone call.
i use the loadere with the box scraper on it all the time and ive never had this issue

I think this is the exact thing chilly807 and I were fighting. In all of my adjustments, changing the valve about 1/8th of a turn at a time, there was NO in between. It was either a jerky hitch or a dynamic balance situation.

Maybe....just maybe.....there is a spot inbetween my 1/8th inch adjustments that would have had a "perfect" hitch. And maybe your dealer had enough dumb luck to find it the first time around. But now something has changed just a tad and you are where we were. I highly doubt that he can get it "perfect" again unless he wants to spend a whole day on it and have it appart a dozen times trying. And then how long will it last????

As I said before...Good luck. And I dont mean that sarcastically. I really wish you the best of luck when dealing with the dealer.

Do keep us posted on what they find.

 

[Chilly807]

It certainly sounds like the problem I had when trying to adjust the valve. If it's set to the specs in the repair manual, it does just what you've described. With weight on the 3 point, if you operate the loader or a remote, the hitch will drop slightly, then raise back when you release the loader valve.

It doesn't do it as much if the loader valve is feathered, it's more pronounced if the valve is held hard one way or the other (wide open).

Mine also did it a little bit if the tractor was at idle and I had something heavy on the 3 point, like 700 lbs of bush hog way back behind the lift arms. It would raise slightly when the rpm came up, then drop slightly when going back to idle. Not as bad as using the loader, but still a slight movement.

I doubt it's wear, there isn't much in there to wear out, especially in that few hours. Plus it all is in an oil mist, so friction is negligible.

It'll be interesting to see what the dealer comes up with.

Sean

 

[ChiefLoneWolf]

Jeez, there's something to look forward to.
My 3PTH is doing (just) the 'jerky thing', which at present does not bother me too much. The only use for 3PTH I have so far is for the weight box (box blade might be next).
However if the 3PTH start to have it's on way when using the loader (as described here) I'm really gonna be pi..ed . I have only 4 hours on the clock so far.

 

[k0ua]

Jeez, there's something to look forward to.
My 3PTH is doing (just) the 'jerky thing', which at present does not bother me too much. The only use for 3PTH I have so far is for the weight box (box blade might be next).
However if the 3PTH start to have it's on way when using the loader (as described here) I'm really gonna be pi..ed . I have only 4 hours on the clock so far.

You have nothing to worry about, It wont start dropping when the FEL is used. The factory settings (which do not agree with the service manual settings) will often give you a jerky hitch, but the control valve is set this way for a reason, because if you set it so that it is smooth, this is when the FEL (upstream usage of the the hydraulic flow) will affect the position of the 3pt cylinder. Again, you have nothing to fear, it will not change.

James K0UA

 

[Chilly807]

James is right. Mine has almost 300 hours now, and is solid as a rock. A jerky rock when you're trying to raise it slowly, but solid otherwise. It only dropped and raised when I adjusted the valve to the service manual specs, and they don't come that way from the factory.


Sean

 

[ChiefLoneWolf]

You have nothing to worry about ... Again, you have nothing to fear, it will not change.

James K0UA

James is right. Mine has almost 300 hours now, and is solid as a rock ...


Sean

Thanks James & Sean. This puts me at ease. I really do like my new tool .
From this I gather, I don't need to take it to the dealer and do something about the 3PTH but rather leave it be.

 

[Chilly807]

If they want to try and fix the jerky raise (I assume yours does this), they maybe should read the thread on adjusting mine, and be aware that there might be side effects to simply adjusting the valve to the specs in the service manual.

If it does the same thing mine did, I doubt you'll be happy with it, unless they're willing to put it back as they found it. It is the lesser of two evils in my opinion.

Sean

 

[LD1]

James is right. Mine has almost 300 hours now, and is solid as a rock. A jerky rock when you're trying to raise it slowly, but solid otherwise. It only dropped and raised when I adjusted the valve to the service manual specs, and they don't come that way from the factory.


Sean

Same here. Solid as a rock now, only jerky when raising slow. Other side-effects were only from me tampering with it trying to make it better

 

[Notforhire]

well if they dont get this fixed im going to be making them give me a new tractor or an upgrade to a grand L

This is ridiculos, i have had my l3800 at the dealer 10-15 times since i bought it last june and im not at 50 hours yet

im getting a little sick of all these issues

Have you had other issues other than the 3PH?

Bill

 

[jokergerm]

i have had stupid issues like a leaky hydraulic fitting for the hose by the 3 point hitch, that took them 3 trips to the shop to fix. Ended up replacing the entire hose for some reason

i would say about 5 trips for the jerky 3 point hitch which finnally got fixed.

2 trips for the seat switch acting up.

1 trip for the backhoe pins being jammed turned and could not remove the backhoe, turned out to be the subframe was loose. And there was some dirt in the U shaped part of the subframe where it drops into

1 trip for the backhoe arms loosing pressure when being stored, it would fall down to the right side, still not fixed. They are looking into it, it looses pressure and falls but does not leak any fluid, but it builds so much pressure that you cant hook up the hoses when you want to put the backhoe on with out smacking the end of the hose with a rag over it with a hammer to let the pressure out.

2 service calls because my auger would not dig in soft dirt. Repalced the auger and it works now

Now its in the shop for the 3 point and loader issue

So ya i am getting rather tired of these stupid issues they are not major but there has been so many it just drives me nuts

Its kinda the local joke at the dealer, when ever i call they are like " really again" that thing is cursed.......