Valve question

[toivo1037]

I have a '89 Deere 301c backhoe that has the 3-stick + foot pedals (and extenda hoe) backhoe controls. I have tried on/off for a year and I just can't get used to the sticks as I grew up on a wobble stick design. So, before starting a major project, these things have to go. I have tried for a while to find old parts to swap it over, with no luck, so it is now time to do the conversion myself. The nice thing is, my father has a Kubota with stick controls that I think I can copy pretty easily, with just a couple of changes, and some bracket fabrication.

To more easily accomplish this, I need to get the spools in the correct order. I need to swap the hydro lines for the bucket and the boom. Everything looks like it is the same size, there is enough length in the lines, I just have one question. On the line side, on the back top of the valves, there are different size items, what I am assuming are the pressure relief parts. Can I just swap these between the valve bodies so the same items are common with the same lines? It looks like there is a plug on one, a mid-sized on the middle 2 and larger on the end 2. It is a HUSCO valve body if it matters. I am attaching some pics, sorry for the dirt, I haven't had a chance to pressure wash the project yet.
Thanks.

 

[J_J]

If it is a stacked valve, you can take it apart and clean it up and use new o-rings, and put the spools in what order you want, keep in mind that there is some logic using the levers.

Some of those items on the valve are probably work port reliefs.

Here is another Husco valve with similar components.

http://www.huscointl.com/wp-content/pdf/5000.pdf

Should you want to re-valve, take a look at this valve. Depending on open or closed center.

Directional Control Valves 220-951 Detailed Information

On my Case BH, certain spools have restrictors in them for a specific purpose.

 

[toivo1037]

Thanks JJ, yes pretty sure it is a stacked valve, I didn't think about taking it apart and re-ordering them, that is a good idea. My first thought was to just re-order the (relief) valves, but your way is probably better, and only a little more work.

Trust me, I am putting thought into the order and linkages. I think it is actually alot easier then it seems to be. And yes, I have been considering just going with a whole new valve stack like the one you linked to, just didn't want to drop the $4-500 as I am only going to have this hoe for about 2 years through the construction of our house (then I will move onto a compact). I think I can do it for less then $100 in parts. heck, if I was going to keep it, (and could afford it) I would love to put electric joysticks in!

 

[toivo1037]

Also, thanks to the link to the manual. I just checked it out and page 21 looks like the things I was going to move. Looks like they are pressure relief. Kinda strange that teh extenda-hoe doesn't have one, and it is just a plug. I like your idea and will just re-order the valves though

 

[J_J]

The valve I linked to, looks similar to your valve. See if you can find the numbers on your. valve.

Is your tractor open center or closed?

 

[toivo1037]

JJ,
Found an alum tag with the following numbers on it:

F88c07# (#=3 or 6 or 8)
AT107862
#000-D41E (#= 6 or G)

I have no idea if it is open or closed. How would I check?

 

[J_J]

Those numbers don't mean much to me with out a name.

Use air to blow in the IN port. If it is closed center, no air will exit.

If open center the air will exit the tank port, or the PB port.

Some of the work ports may have restrictors in them.

You can also use the air to check out the work ports.

If the valve is open center, and you connect air to the IN port, air will flow out the tank port or the PB port if it has one.

If you move a lever, air will come out that work port. Check each one of them.

 

[jasong123]

The first line is the serial number - which means it was manufactured in June '88 (F88) the C07# is an individual number assigned to a specific valve.

the AT number is the customer part number

and the 6000-D41 is the HUSCO part number. It is an Open Centre 6000 series valve.

http://www.huscointl.com/wp-content/pdf/6000.pdf

It is very similar to the 5000 valve you already looked at only larger with a higher flow rating.