Backhoe Confusion about 3rd function

[RNeumann]

Interesting EA edited post and removed reference to very small holes in the DO3 valve plate and over heating.......
It would be interesting to see the flow rate of the valve they are selling.

 

[EverythingAttachments]

Interesting EA edited post and removed reference to very small holes in the DO3 valve plate and over heating.......
It would be interesting to see the flow rate of the valve they are selling.

It's a DO3; the same one that CA offers in their kit. If the tractor has above 15gpm on the aux. circuit, you need to upgrade to a DO5.
Ted said you shouldn't worry about using it 15 minute or so intervals for digging holes or other applications that aren't strenuous, but it still isn't mfg. recommended.
He gave a technical statement about the magnets in the valve and the manner of actuation, but I didn't comprehend enough to repeat it.
Travis

 

[RNeumann]

It's a DO3; the same one that CA offers in their kit. If the tractor has above 15gpm on the aux. circuit, you need to upgrade to a DO5.
Ted said you shouldn't worry about using it 15 minute or so intervals for digging holes or other applications that aren't strenuous, but it still isn't mfg. recommended.
He gave a technical statement about the magnets in the valve and the manner of actuation, but I didn't comprehend enough to repeat it.
Travis

The technical aspect is with regards to the solenoid (like a heavy duty electrical switch) that is used to move the valve from position to position. That is the part Hyvair (valve manufacture) states is designed for continuous use.
A temporary duty solenoid is like the one used for starting a car- just a few seconds now and then. A continuous duty solenoid is what I am told this has.
Maybe Hyvair has changed the solenoid or the failures were with a different model valve?
I'm not sure where the 15gpm spec came from. The valve manufacture literature (link above) shows 8,17,21 and 26 approx. gpm models. Could the failures also come from the 8 gpm models on larger machines? Maybe to save space or cost?

 

[EverythingAttachments]

Could the failures also come from the 8 gpm models on larger machines? Maybe to save space or cost?

There are no reported failures to my knowledge. This is simply stating what could happen.
Nelson and Ted are really the most knowledgeable hydraulics people I know. JJ is the TBN hydraulics guru. Too bad there's no tagging on TBN like on Facebook!
Travis

 

[LD1]

Should be upgrading to the D05 anytime you go over 8gpm. At least thats the standard in industrial applications when designing a hydraulic circuit.

Either way, I wouldnt choose a stackable type valve for a tractor.

 

[RNeumann]

There are no reported failures to my knowledge. This is simply stating what could happen.
Nelson and Ted are really the most knowledgeable hydraulics people I know. JJ is the TBN hydraulics guru. Too bad there's no tagging on TBN like on Facebook!
Travis

This is crazy! First you post that the product fails with continuous use- detailing how and why it does so. Then you delete that part of your post. Now you state their have been no failures. I would avoid "replying" to posts to save readers for having to reread what was already written. This though, is a new one to me. I guess I'll have to now.

Who cares if it fails with continuous use? Your websites says it will (link above). As I said 99% of folks will never do that type of operation with the third function. Which means this conversation was over before it started. Instead you post, then change the post, and lay the issue with valve and switch manufacture. You offer names of what I assume are highly qualified folks. Unfortunately none of the names are the valve or switch manufactures.
Where are you hoping this thread goes? EA was given credit for offering a good product and good service. The comments were from your website regarding not using continually (backed up with my own experience with a WR Long 3rd function that failed from continuous use- dealer in Oregon had it in his shop).

 

[EverythingAttachments]

This is crazy! First you post that the product fails with continuous use- detailing how and why it does so. Then you delete that part of your post. Now you state their have been no failures. I would avoid "replying" to posts to save readers for having to reread what was already written. This though, is a new one to me. I guess I'll have to now.

Who cares if it fails with continuous use? Your websites says it will (link above). As I said 99% of folks will never do that type of operation with the third function. Which means this conversation was over before it started. Instead you post, then change the post, and lay the issue with valve and switch manufacture. You offer names of what I assume are highly qualified folks. Unfortunately none of the names are the valve or switch manufactures.
Where are you hoping this thread goes? EA was given credit for offering a good product and good service. The comments were from your website regarding not using continually (backed up with my own experience with a WR Long 3rd function that failed from continuous use- dealer in Oregon had it in his shop).

WR Long's phone number is 252-823-4570 if you would like to talk to Nelson personally.
He's a really nice guy and wouldn't steer anyone wrong. Kinda like us!
Have a wonderful day.
Travis

 

[Big Chief]

I just added a grapple. You have to just understand how the power beyond Plumbing works I used a single spool valve and premade hoses and fittings from the surplus center

 

[RNeumann]

Looks good! The brackets etc look like you took your time and did it right. I can't quite see the way you attached the hoses at the loader cross arm. Some type of nice clamp...?

 

[tkevan]

View attachment 494463I just added a grapple. You have to just understand how the power beyond Plumbing works I used a single spool valve and premade hoses and fittings from the surplus center
View attachment 494462

Not to get off topic, but I would use caution with the placement of your hooks. Looks like they're mounted a good bit outside the arms. Careful not to twist your loader.

As to the OP. I used this setup for my 4025.
Construction Attachments Dedicated Third Function Hydraulic Valve Kit, Less Hoses, Up To 14 GPM Had my local hose shop fab what I needed and saved a couple of hundred dollars.