flat face couplers

[Industrial Toys]

My guess is, a coupler that "weeps" won't have connect/disconnect issues.

My JD 6200 has OEM hand operated, probably Ball valves on the loader aux circuit just behind the two female pioneer couplings. These valves are "supposed to relieve pressure" and have a small hole in the valve body. I have never seen a drop of fluid come out of these holes, and despite the circuit being electric, that you can't activate when the machine is not running, I have never had an issue with pressure. This has always been a mystery to me.

 

[ovrszd]

My guess is, a coupler that "weeps" won't have connect/disconnect issues.

Doesn't work that way. Couplers usually weep when there's no pressure. Under pressure they don't leak.

 

[Industrial Toys]

Of Course. Why would it be any other way? Thanks. A good thing to remember. Like the hole in your pail that only gets bigger but your spray nozzle plugs right up.

 

[ericm979]

Well, the Chinese ones from Discount Hydraulic (4HTF4-P-SET | Set of 1/2" Connect-Under-Pressure ISO 16028 Quick Disconnects) are junk. The female one wedged partway open when I was trying to put the male in. Can't insert the male and it won't close off.

I'm just going to use ag couplers.

 

[mopardude318]

Well, the Chinese ones from Discount Hydraulic (4HTF4-P-SET | Set of 1/2" Connect-Under-Pressure ISO 16028 Quick Disconnects) are junk. The female one wedged partway open when I was trying to put the male in. Can't insert the male and it won't close off.

I'm just going to use ag couplers.

Exactly what happened to me! I got it to insert and close off, but it leaked as I used it. i wonder if this company will accept the return? I have a 90 dollar set of junk connectors ready to go in the trash...

money down the drain. lol

 

[LD1]

Exactly what happened to me! I got it to insert and close off, but it leaked as I used it. i wonder if this company will accept the return? I have a 90 dollar set of junk connectors ready to go in the trash...

money down the drain. lol

try contacting them. DHH is usually pretty good to work with

 

[DieselBound]

I've run into various threads about couplers and problems connecting them and am wondering...

Is the more appropriate question that of how to reduce the pressure buildups to begin with?

Reason I ask is that many folks offer that the issue is on the implement side and that it's caused by a difference in temperature from when the implement was detached: the explanation, as I understood it to be, is that it's mostly when trying to connect when ambient temperatures are higher when going to hook up than the temps when the implement was unhooked.

I'm grappling with this issue with my, ah, hem, grapple. I keep forgetting to try connecting up the two hoses (different sexes) on the grapple. Supposedly connecting the hoses together helps equalize any pressure (though total changes due to temperature changes are still going to apply, so I'm still struggling with the logic). One thing I have noticed, and I believe that I got the couplers for the tractor side from DHH, is that the collars on the flatface connectors seem to hang up a bit and I have to slide them to help them lock: no idea what the expected procedure is, but I had a heck of a time getting them to connect and then I realized that much of the problem was that the collars weren't sliding forward well enough to lock. I've got my couplers on the tractor side on a hose saver and I really need to ditch that and have something more rigid to push against.

 

[lennyzx11]

I got this in my email yesterday. Interesting... bet it'll be expensive though.

Westendorf Flat Face Hydra-Snap™ Quick Coupler - YouTube

 

[bdhsfz6]

I've run into various threads about couplers and problems connecting them and am wondering...

Is the more appropriate question that of how to reduce the pressure buildups to begin with?

Reason I ask is that many folks offer that the issue is on the implement side and that it's caused by a difference in temperature from when the implement was detached: the explanation, as I understood it to be, is that it's mostly when trying to connect when ambient temperatures are higher when going to hook up than the temps when the implement was unhooked.

I'm grappling with this issue with my, ah, hem, grapple. I keep forgetting to try connecting up the two hoses (different sexes) on the grapple. Supposedly connecting the hoses together helps equalize any pressure (though total changes due to temperature changes are still going to apply, so I'm still struggling with the logic). One thing I have noticed, and I believe that I got the couplers for the tractor side from DHH, is that the collars on the flatface connectors seem to hang up a bit and I have to slide them to help them lock: no idea what the expected procedure is, but I had a heck of a time getting them to connect and then I realized that much of the problem was that the collars weren't sliding forward well enough to lock. I've got my couplers on the tractor side on a hose saver and I really need to ditch that and have something more rigid to push against.

The pressure on the tractor side can usually be relieved fairly easily. There is no doubt most of the problem is on the implement side. It isn't just temperature change that causes pressure binding in these implement couplers. Moving the implement and cylinder bleed down also contribute to the issue. Connecting the hoses together can often make them difficult to separate when pressure bound. This can sometimes double the effort when connecting an implement to the tractor.

All female QR couplers with sliding collars can bind up when dirt gets between the collar and barrel. Once in there, it can be difficult to clean. Ordinary female coupler plugs protect the inside of the lock chamber but not the barrel itself. I've had good luck with these simple vinyl caps which slip on the outside of the female coupler:



They aren't perfect but they do help keep the coupler barrel clean. The one shown is for a Pioneer ag type coupler with an OD of 1.5 inches. Other diameters are available and cost about $1.

 

[case580c]

I got this in my email yesterday. Interesting... bet it'll be expensive though.

Westendorf Flat Face Hydra-Snap™ Quick Coupler - YouTube

The Hydra-snap (MA-280) lists for $425. The Flat face Hydra-snap (MA-380) lists for $1033 The Hydra-snap (MA-280) lists for $425. The Flat face Hydra-snap (MA-380) lists for $1033