Hydraulic coupler compatibility?

[Rich_Z]

I just got in an implement for my FEL to mate up with my 3rd function, which is (from what I can figure out) a poppet style coupler set.

What I got on the implement is some sort of round ball instead of that tapered raised center. I sent the above pic to the place I bought it from, so they knew what I have. Been wet behind the ears with this hydraulic stuff, I have no idea if the two types of couplers are going to be compatible together. Yeah, I know I could just try it, but I don't like experimenting with things like this. Not to mention that the implement is still in the back of the pickup truck.

So will they work together or do I need to buy exactly compatible couplers and switch out those round ball ones?

 

[ericm979]

https://www.discounthydraulichose.com/v/vspfiles/downloadables/qd_sizechart.pdf

The ISO 5675 AG couplers come in both ball and poppet types. Mine interchange but some folks here have reported them not working together. Try it and see.

 

[Rich_Z]

Oh hell..... So there are two different styles of the poppet couplers? Is one more likely than the other to be on my TYM T474 tractor?

 

[ericm979]

You very likely have AG couplers on the tractor. The ones in the pic are shown front on instead of in profile but they are probably AG couplers too. If they're the right size and also AG couplers, try them. They probably work. The ball and poppet types of ISO 5675 are supposed to interoperate. Mine do.

 

[Tx Jim]

Poppet type coupler is designed to be higher flow(GPM's) than ball type but most will interchange when connecting.

 

[LD1]

Three "types" of couplers that all look similar

ISO 5675 (AG)
ISO 7241 series A
ISO 7241 series B

NONE of them are interchangeable yet all look similar. Ball vs Poppet are usually interchangable as long as the couplers are the same series.

There are also different sizes.

Its not "experimenting" to see if they will plug into one another. And taking a picture of the SIDE of both male couplers would help us identify them (if there is no writing on any of them). Front pics show nothing

 

[ruffdog]

Size chart:

How to determine size

 

[5030]

What you have are Pioneer style not release under pressure couplers. The Pioneer ball end couplers are release under pressure and they are all available at any tractor dealer and Tractor Supply as well and because Pioneer's patent ran out, everyone sells them and brand is not important so long as they will couple without leaking and retail sellers also sell rebuild kits for the internal seals and 'O' rings. Just have to be careful when renewing the 'O' rings as they have to precisely fit in the machined in recesses in the male fittings and in the females and they will all leak a bit when you couple them up but the hydraulic fluid is 'hydroscopic' so it washes off when (and if) you wash the tractor.

 

[Rich_Z]

Well today I finally got around to putting the Notch Tree & Post Puller (the aforementioned "implement") onto the FEL. I was able to get the couplers that came on the hoses on the Notch to connect to the couplers on the 3rd function on the tractor, but that female coupler (on the Notch side) was a real SOB to get connected up. Had a friend come over who had more meat on his bones, thinking maybe I have just gotten to old and feeble for the job. But he had no better luck than I did. I actually pulled off the male side on the tractor in case my flicking that 3rd function buttons wasn't releasing the pressure. All to no avail. We tried every which way from Sunday to get them to hook up. Now we knew they SHOULD connect, because when I took that male coupler off the tractor I was able to get it into the female coupler on the Notch. Wouldn't really call it "easy" but it DID hook up. Honestly, I think the spring on that female coupler is just a tad on the stiff side, as once hydraulic fluid got onto it, it was darn difficult to pull it back all of the way.

So how did I finally get it connected? Well, I knew I could take the loose male coupler from the tractor side and get it connected to the female side on the Notch, so what I did was to connect the loose male coupler into that female hose coupler and THEN screwed the male coupler back onto the hydraulic line on the tractor. That was the ONLY way we could get it connected.

I am thinking I may replace that female coupler on the hose from the Notch. Otherwise I am going to be extremely reluctant to disconnect that Notch tree puller from my tractor, EVER because of it being such a pain in the butt to hook it back up again. I might as well cancel my order for the grapple, because I would never use it. So I have to do something to make that "quick connect" hydraulic hose setup, well, QUICK, and certainly EASIER. Or at least manageable. Otherwise I might as well just weld those couplers together.

In any event, there were no hydraulic leaks after all the cussing and elbow banging on the FEL, and the jaw seemed to work like it should.

 

[bdhsfz6]

Well today I finally got around to putting the Notch Tree & Post Puller (the aforementioned "implement") onto the FEL. I was able to get the couplers that came on the hoses on the Notch to connect to the couplers on the 3rd function on the tractor, but that female coupler (on the Notch side) was a real SOB to get connected up. Had a friend come over who had more meat on his bones, thinking maybe I have just gotten to old and feeble for the job. But he had no better luck than I did. I actually pulled off the male side on the tractor in case my flicking that 3rd function buttons wasn't releasing the pressure. All to no avail. We tried every which way from Sunday to get them to hook up. Now we knew they SHOULD connect, because when I took that male coupler off the tractor I was able to get it into the female coupler on the Notch. Wouldn't really call it "easy" but it DID hook up. Honestly, I think the spring on that female coupler is just a tad on the stiff side, as once hydraulic fluid got onto it, it was darn difficult to pull it back all of the way.

So how did I finally get it connected? Well, I knew I could take the loose male coupler from the tractor side and get it connected to the female side on the Notch, so what I did was to connect the loose male coupler into that female hose coupler and THEN screwed the male coupler back onto the hydraulic line on the tractor. That was the ONLY way we could get it connected.

I am thinking I may replace that female coupler on the hose from the Notch. Otherwise I am going to be extremely reluctant to disconnect that Notch tree puller from my tractor, EVER because of it being such a pain in the butt to hook it back up again. I might as well cancel my order for the grapple, because I would never use it. So I have to do something to make that "quick connect" hydraulic hose setup, well, QUICK, and certainly EASIER. Or at least manageable. Otherwise I might as well just weld those couplers together.

In any event, there were no hydraulic leaks after all the cussing and elbow banging on the FEL, and the jaw seemed to work like it should.

See post #6 in this thread:

Detaching hoses in the warm

Occasionally a question comes up "how do I take this hydraulic coupling apart it's stuck!" and almost invariably it's because the temperature was cooler when it was coupled and due to the increase of temperature, fluid pressure inside the hoses has increased to the point that you can't undo the...

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