Quick disconnect hydraulic coupler leaking when mated...

[erkme73]

Searching for leaking couplers, quick-disconnects, fittings, etc provides an overwhelming number of false positive results. I apologize if this is a commonly discussed issue - but I couldn't find it.

I noticed today that one of the four FEL QD hydraulic fittings has a pretty good drip going (maybe 1 drip every 10 seconds). I separated the fittings (all were under no pressure w/bucket on the ground) and the leaking stopped.

Thus, I would assume the problem is with the o-ring in the female coupling that is designed to trap the fluid in the space between the two mating parts.

I've attached a photo. Since I'm sans manual, I figured I'd post a request for help here. Does anyone know the brand/type of fitting this is? And are o-ring replacements even available? Is that something I should be able to do on my own, or should I just replace the whole fitting?

My 2 year full warranty expires in Feb, so if this is a covered item, and I haven't got it resolved by the time I take it in for the rest of my punch list, I'll just have the dealer fix it. For now, I've disconnected the coupling to prevent further leaking.

 

[RNeumann]

It’s fairly common to have these leak. Any debris can score the seals and cause a little leak. They cost about $20 and aren’t worth fixing- to my knowledge anyway.
The fittings are the standard “ag” style. I can’t recall the size- which is common- I think it’s 3/8 but I’m not 100%. Most hydraulic or truck shops will have them.

 

[LindenBruce]

It will say right on the side of the coupler. It is prolly a Parker. In any case they are very common. It is prolly a number 8 hose thread size. Bruce

 

[RNeumann]

Who knows on brand. My 1538 had Stucchi couplings between the loader and chassis and the dealer used Safeway couplers at the grapple. Parker is also a common brand. Either way the ag style should all be interchangeable- as long as the size is the same.

 

[erkme73]

Well, I went to the TSC and they didn't have the poppet style that matched, so I just bought a new set (1/2" npt) for $22, and replaced both sides. Simple fix and it works. The male end now has a ball instead of a pin.

 

[RNeumann]

TSC seems to have a cult following. After reading on this forum I actually made a special trip to visit the closest one. What a let down- I was unimpressed.
Next time try one of your local places. When I moved I was convinced their wouldn’t be anything around in my little area. After some time I found a little auto parts store, a truck repair shop and the tractor dealer all have a good supply.

 

[erkme73]

That might well be. For me, I'd never set foot in a TSC store until last month when I bought my first tractor. I have slim pickings in my area...

 

[ovrszd]

Hopefully you won't be disappointed with your new couplers. Very, very common for this type of coupler to leak when all pressure is released.

 

[erkme73]

Even when they're coupled together?

 

[RNeumann]

Even when they're coupled together?

The ones you have are fine.

 

[CincyFlyer]

Well, I went to the TSC and they didn't have the poppet style that matched, so I just bought a new set (1/2" npt) for $22, and replaced both sides. Simple fix and it works. The male end now has a ball instead of a pin.

I have poppets and balls mixed on mine; they all seem to work properly, regardless of what is hooked to what.

 

[CincyFlyer]

TSC seems to have a cult following. After reading on this forum I actually made a special trip to visit the closest one. What a let down- I was unimpressed.
Next time try one of your local places. When I moved I was convinced their wouldn’t be anything around in my little area. After some time I found a little auto parts store, a truck repair shop and the tractor dealer all have a good supply.

Not really a "cult" thing; TSC just has more stuff related to, um, tractoring, than our local auto/truck parts or hardware stores; one stop shopping! It's rare that I go out for just one thing. And they ARE local to me–three of them withing 10 miles, and one is next door to a Rural King store!

 

[ovrszd]

Even when they're coupled together?

Usually only happens when they are coupled. That's the only time the oring is doing anything.

 

[JB13502]

Well, I went to the TSC and they didn't have the poppet style that matched, so I just bought a new set (1/2" npt) for $22, and replaced both sides. Simple fix and it works. The male end now has a ball instead of a pin.

Not all TCS's are created equally in my mind... the nearest one to me is a little over 9 miles. There's another one 25 miles or so in the other direction. After too many disappointments due to meager stock, or just sloppy organization of things like lynch pins, link pins, etc, I drive the extra miles to the other store. World of difference between the two.