Tired of dripping quick disconnects...

[Dougster]

That amazes me that your hose fittings leak with no pressure. Time to get some new fittings. Good luck

Well, I gotta tell you that the male fittings on the grapple leak as well when not in use. Is it possible that every end fitting I bought at TSC is bad???

Dougster

 

[SPYDERLK]

Surplus center has couplers sold reasonably in a coupled pair. The males are the lower flow ball end type. Mine dont leak, coupled or not.
larry

 

[MtnViewRanch]

Well, I gotta tell you that the male fittings on the grapple leak as well when not in use. Is it possible that every end fitting I bought at TSC is bad???

Dougster

If all the TSC fittings are leaking, then yes it sounds like they are all bad. If you bought them at the same time, then I would say that they came from a bad batch.(must of had somebody new on the job) Orrrrrrrrrr, you have some sort of special hydraulic oil that has micro organisms in it and they are prying the fittings open. Which ever you want to believe, either way it looks like you need a higher quality connector.

 

[Dougster]

Surplus center has couplers sold reasonably in a coupled pair. The males are the lower flow ball end type. Mine dont leak, coupled or not.
larry

If all the TSC fittings are leaking, then yes it sounds like they are all bad. If you bought them at the same time, then I would say that they came from a bad batch.(must of had somebody new on the job) Orrrrrrrrrr, you have some sort of special hydraulic oil that has micro organisms in it and they are prying the fittings open. Which ever you want to believe, either way it looks like you need a higher quality connector.

Sounds like that's the case.

If your couplings do not leak... and all of my disconnected, non-pressurized couplings *do* leak... I am obviously using the wrong (Pioneer) brand.

Dougster

 

[Wayne County Hose]

Tractor Supply doesn't make the q.d.'s, they just distribute them. I don't know if this is the case or not, but sometimes a manufacturer gets beat up so badly on price, that they make an inferior product to meet the buyers price demand.

How long have they been on the machine? Sounds like you may also have dirt in the seats that did some damage. Do you have the little condoms for when disconnected? OOps, I just read, you do have the condoms.

This is why I preach to buy locally from a hydraulic shop. If a local guy bought these from me, then I could examine them and tell him if he had a defective product, if he was using the improper q.d. for his application, or if he was abusing them. Intentionally or not. I know that you guys get ripped off a lot from the local guys, but I find it hard to believe that there is never anyone around with a reasonable price. You may pay more locally than on the internet or at a discount house, but when you have a problem you could go there and ask rather than trying to get an answer a thousand miles away on the internet.

The ISO 16028 (flush face Parker FF or FE series) q.d.'s are rated for higher pressure and flow. A much higher quality piece. 5,000 p.s.i. for all sizes. The Ag style and the other similar types drop in pressure rating as the size increases. If you want an even better q.d. for the about the same price or less than the normal flush face you buy, go with the series 71 q.d., rated for double the pressure and more flow.

Remember, these old style q.d.'s were developed when working pressures were way lower. If you are using any other than flush face in a modern piece of equipment, they will not last as long as they should. Just remember, the cheap end up paying twice.

 

[Dougster]

Tractor Supply doesn't make the q.d.'s, they just distribute them. I don't know if this is the case or not, but sometimes a manufacturer gets beat up so badly on price, that they make an inferior product to meet the buyers price demand.

How long have they been on the machine? Sounds like you may also have dirt in the seats that did some damage. Do you have the little condoms for when disconnected? OOps, I just read, you do have the condoms.

This is why I preach to buy locally from a hydraulic shop. If a local guy bought these from me, then I could examine them and tell him if he had a defective product, if he was using the improper q.d. for his application, or if he was abusing them. Intentionally or not. I know that you guys get ripped off a lot from the local guys, but I find it hard to believe that there is never anyone around with a reasonable price. You may pay more locally than on the internet or at a discount house, but when you have a problem you could go there and ask rather than trying to get an answer a thousand miles away on the internet.

The ISO 16028 (flush face Parker FF or FE series) q.d.'s are rated for higher pressure and flow. A much higher quality piece. 5,000 p.s.i. for all sizes. The Ag style and the other similar types drop in pressure rating as the size increases. If you want an even better q.d. for the about the same price or less than the normal flush face you buy, go with the series 71 q.d., rated for double the pressure and more flow.

Remember, these old style q.d.'s were developed when working pressures were way lower. If you are using any other than flush face in a modern piece of equipment, they will not last as long as they should. Just remember, the cheap end up paying twice.

All of these are Pioneer-brand, aggie-style couplings... bought at TSC earlier this year, but definitely not all from the same batch. All are rated 3,000 psig against my design operating pressure of 2,500 psig... but let's not forget that they don't leak while connected and pressurized. I am talking about leakage after they are disconnected, depressurized and either capped or plugged. These are "after-use" nuisance leaks... draining out the oil left in the hoses after disconnecting.

The worst offenders are the two ball-type sets I bought... male and female in a set... and colored silver as opposed to the usual yellow/gold-ish color. Don't know why they were so different in style and color when bought in matched sets, but that was the only way I could get what I needed without visiting 3 or 4 TSC stores.

These couplings & hoses have been in use since spring 2007. I do not believe this leakage issue is related to dirt, damage or defects. I believe it is just cheap and/or sloppy design.

My best/favorite local hydraulics guy (out of a very motley crew) doesn't even carry this "aggie" type of hydraulic coupling. If not bought from TSC or through the Internet, I'm not sure what I would do. Sure can't afford to buy them from the local ("triple mark-up") Kubota Palace!!!

Dougster

 

[zzvyb6]

I use rubber caps to keep the dirt out. Its the dirt and dust which makes them dribble.

 

[Wayne County Hose]

Doug,

You only have 500 p.s.i. there which isn't much leeway. TSC and many others also buy from whomever has the lowest price that day. Sounds like you have 2 different manufacturers.

We've spoken of your difficulties in that area of obtaining a decent product for a fair price. In your case, go to DHH and get the flush face q.d.'s. They are probably the same price as the ag style locally.

Did you take them back to TSC? I would take them back there and explain to a manager the exact same way you explained here. The main thing is to be pleasant. I hate to tell you, but for my customers, I would warranty them and then go to my supplier for reimbursement. Even if I didn't get paid, I just feel it's good customer service.

 

[Soundguy]

Hmm.. non of my ford or JD female QD's drip... I think yours need orings.. or need to be repalced if they leak that bad.

soundguy

 

[Dougster]

Doug, You only have 500 p.s.i. there which isn't much leeway.

Now I am really confused. I have a tractor hydraulic system that can run only as high as 2,500 psig... and 3,000 psig rated components are too weak? Practically everything on my tractor is rated for 3,000 psig. If that's not a high enough design rating, I am in much bigger trouble than those few drops of oil leaking from detached, non-pressurized hose couplings.

And how would the difference between operating pressure and design pressure of my tractor's hydraulic system's components have anything at all to do with leaks coming from a disconnected, zero pressure hose and couplings that aren't even physically connected to the tractor during said leaks? Are you saying I might have over-pressurized and damaged them while they were connected?

TSC and many others also buy from whomever has the lowest price that day. Sounds like you have 2 different manufacturers.

They are all Pioneer brand couplings... but the ones in question, purchased together in matched sets, are clearly of a different color, design and type than the other Pioneer components I bought separately. I cannot explain why. Perhaps Pioneer outsourced these silver-colored matched sets to China.

We've spoken of your difficulties in that area of obtaining a decent product for a fair price. In your case, go to DHH and get the flush face q.d.'s. They are probably the same price as the ag style locally.

Well, that's the whole question in a nutshell. And since you do this for a living, may I ask: Are folks with aggie-style tractors generally switching over to skidsteer-style flat-face couplings? Is this something you routinely recommend to your compact tractor customers? I'm sure they are of a superior design and higher quality at almost 4 times the price.

Did you take them back to TSC? I would take them back there and explain to a manager the exact same way you explained here. The main thing is to be pleasant. I hate to tell you, but for my customers, I would warranty them and then go to my supplier for reimbursement. Even if I didn't get paid, I just feel it's good customer service.

They are still in use on a jobsite as we speak. But if they are defective, I should have no problem returning them.

Dougster