CAn someone explain the hydraulic block

[Jimbrown]

Ok this thing
controls the hydraulics but there is nothing about it in the tractor manual. I don't have the backhoe or loader manual. I do have the service manual but it only tells how to take it apart not how or when to use it. It says to have it in one position with implement attached and another position with no implement. Can I assume that the loader is an implement?

 

[J_J]

Hyd block is a manifold for routing pump fluid to the hyd implements.

The one on my B-9200 is similar where you turn a screw for either 3pt only or loader and 3pt.

You have three port there.

One of them is for pressure OUT.

One of them is for PB from the FEL valve/

One of them is for the return.

I believe this is correct.

 

[Leejohn]

Run it as the picture shows. If you add, say maybe a grabber you would feed another valve to run the grabber and then you would turn it. The loader and 3pt well also work, if you turn it back it well shut off the grabber. When not useing the grabber it should be turned like the picture. My kubota l3130 manual said only to turn when useing a implement and turn back for normal use.

 

[Jimbrown]

Ok I think I got it. the first picture was from the service manual this is my actual block and it has the loader and backhoe hoses hooked to it.

 

[J_J]

Run it as the picture shows. If you add, say maybe a grabber you would feed another valve to run the grabber and then you would turn it. The loader and 3pt well also work, if you turn it back it well shut off the grabber. When not useing the grabber it should be turned like the picture. My kubota l3130 manual said only to turn when useing a implement and turn back for normal use.

Yes, the loader is an implement, and BH is a implement.

Once the screw is turned for implements, there is no real need to turn the screw back if you have hoses installed for implements.

When you remove the implement, just couple the the pressure and the PB hose hoses from the loader together. Then cap the return hose from the loader.

 

[J_J]

Ok I think I got it. the first picture was from the service manual this is my actual block and it has the loader and backhoe hoses hooked to it.

The hyd block can only feed one implement.

Here is how it works.

With no implement and no hoses, the screw is one way and that feeds the pump flow to the 3pt.

With implement installed, the flow is re-routed by the screw, and the flow now is from the pump to the blk, then to IN port of FEL valve, and then from FEL PB pirt back to the hyd blk, and then on to the 3pt.

If you had a BH and no loader, you could plug the BH into those ports.

So if you had FEL installed, you will need to install the BH in series after the hyd blk with the flow going to the back for the 3pt.