Need Help on Hydraulic Issue

[dstig1]

I suspected it might be a "cushion" block...

Have you looked into the non-regen position of your valve?

Also go to search all forums and type in regen and diverter. Start reading a bit. Here's a couple key ones.

http://www.tractorbynet.com/forums/hydraulics/189563-third-function-problems.html

Check out the link JJ posted in post #14 on this one:
http://www.tractorbynet.com/forums/hydraulics/155160-regen-single-acting-cyl.html

 

[KOLBRNR]

Thanks Dave I will start doing my homework now.

Russ

 

[KOLBRNR]

Just a quick update. I was talking to my hydraulic guy today. He assures me I do not have a regenerative system. Says we need to put a line back to drain behind the spool where the spring is. Says fluid is getting behind the spool causing it to hydo-lock.
Does this sound plausible?
He is going to call the engineer where they buy the valves and we will go from there. I will update when I know more.

Russ

 

[SPYDERLK]

Try the same push up trick you did earlier but operate the lever hard right quickly.
larry

 

[dstig1]

You have an LA853 loader, per your first post? I guarantee you have regen as that manual page I posted is from the loader manual for LA513/723/853 loaders. There is only one valve offered at a point in time (one for older models, one for newer ones), like it says. The regen is the second stop on the older valve, but the first stop on the newer valve.

 

[KOLBRNR]

Try the same push up trick you did earlier but operate the lever hard right quickly.
larry

Well I just did that and the tractor lifts faster than it does when I move it slowly. I played with it and I can feel a little detent and it moves faster after I pass that. However I really can't tell as the all move faster the farther I push the lever.

Russ

 

[SPYDERLK]

Well I just did that and the tractor lifts faster than it does when I move it slowly. I played with it and I can feel a little detent and it moves faster after I pass that. However I really can't tell as the all move faster the farther I push the lever.

Russ

Settled. You dont have regen. Something at the diverter or beyond. Do you have the diverter documentation ... or at least its model #?
larry

 

[SPYDERLK]

You have an LA853 loader, per your first post? I guarantee you have regen as that manual page I posted is from the loader manual for LA513/723/853 loaders. There is only one valve offered at a point in time (one for older models, one for newer ones), like it says. The regen is the second stop on the older valve, but the first stop on the newer valve.

I dont understand how a valve with regen as the 1st stop could give you a controlled dump. It seems it would start to move quick and then slow to your choice of speed in the 2nd section. Sounds bad.
larry

 

[KOLBRNR]

I just read the manual that I have. Duh
It tells me that serial numbers higher than 50001 have one that dumps fast then slow (regular) as you move the lever farther right.

Valves with a number lower than 50000 have the other. It dumps slow (regular) then fast as you move the lever to the right.

My loader number is 558?? so I should have the first one. However this is not how my loader works. It works like the other one.
Just when I think I have the answer they change the question.

Russ

 

[Brad_Blazer]

I think you have your selector valve plumbed backwards. Look at the diagram on "STEP 3" in this link from SelectPlus: http://www.hydraulicstore.com/images/pdf/Trausch_Dynamics_Selectplus.pdf
Looking at the valve with the solenoid up, the inlets are on the left, the primary outlets are on the right, and the diverted outlets are where you have them. So primary flow should go from left to right and you have it plumbed from right to left. Mine is the cheapie from Baileys and a different manufacturer but it plumbs up just like the one in the link.