npalen
Elite Member
https://hoseendchamber.com/about-hose-end-chamber/operating-instructions
A solution to pressure build-up in hoses.
A solution to pressure build-up in hoses.
Loader WHAT IS QUICK ABOUT QUICK COUPLINGS?
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Omega Woods
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I always hook the hoses together on my attachments when disconnected. Makes it much easier to attach them when the time comes.
Before I found out this trick and cycling the controls on the machine I cussed the couplers a lot but now they are easy to use.
Before I found out this trick and cycling the controls on the machine I cussed the couplers a lot but now they are easy to use.
KWentling
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So I have a Kubota M7060 ordered and the single point was $696 option which I am getting. My trade in tractor had a Westendorf WL-42 loader. I priced their single point and I don't remember the exact cost but I think it was around $900. If one of the couplings goes bad on single points, they are replaceable. You don't have to buy the whole plate full. I believe the Kubota BX now has the single point as standard equipment.
npalen
Elite Member
That would be useful on something like a grapple where you have a male tip on one hose and a female coupler on the other, right? Looks like there could still be pressure buildup, however.
Edit: A small air bubble in the hoses or cylinder would leave a little room for expansion. The odds for success might be better since excess fluid could transfer from one hose to the other.
Edit: A small air bubble in the hoses or cylinder would leave a little room for expansion. The odds for success might be better since excess fluid could transfer from one hose to the other.
jmc
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OP, you have a right to be frustrated because there are various reasons these couplers dont work so well. Unfortunately, some of us that have overcome the reason our particular setup didnt work for us seem to think that we have discovered the universal solution for everybody elses setup as well.
Case in point: I tried all the conventional advice here:
A) Equalizing the attachment's internal pressure by connecting its couplers together until the next time.
B) Relieving the tractor's internal pressure by whatever the manual says, usually with the engine off but the ignition partially on.
Neither one of these solved my problem on the flat faced couplers on EITHER my Kubota or my Gehl tracked loader. They let me get the couplers a little closer to connecting but not quite all the way.
What did solve my problem on BOTH of these completely different machines is holding the corresponding valve open while connecting the previously stubborn couplers. (Of course this is with the engine off and the ignition on)
If I knew how to post a video and if I still had a wife, I would video my struggle to make the connection and then how they slide together like butter once someone comes out and pushes the valve open button for me.
My theory is that even though there is no residual pressure in the tractor's or the attachment's circuit, there is a trapped volume of fluid between the coupler and its control valve that will not compress when the coupler needs it to. Holding the valve open will give that trapped fluid a place to go.
It could also be that on new tractors and on connectors that are rarely used, the connectors are too tight to allow any necessary leakage. This might be why people with well used equipment dont have this problem.
Holding that valve open requires a second person but I keep a c-clamp handy if I am by myself.
Also, I bought some couplers advertised as self-relieving from Discount Hydraulic. They werent too much more that a pair of regular flat faced couplers and they worked every time so far on the Gehl. I havent installed them on the Kubota yet.
Case in point: I tried all the conventional advice here:
A) Equalizing the attachment's internal pressure by connecting its couplers together until the next time.
B) Relieving the tractor's internal pressure by whatever the manual says, usually with the engine off but the ignition partially on.
Neither one of these solved my problem on the flat faced couplers on EITHER my Kubota or my Gehl tracked loader. They let me get the couplers a little closer to connecting but not quite all the way.
What did solve my problem on BOTH of these completely different machines is holding the corresponding valve open while connecting the previously stubborn couplers. (Of course this is with the engine off and the ignition on)
If I knew how to post a video and if I still had a wife, I would video my struggle to make the connection and then how they slide together like butter once someone comes out and pushes the valve open button for me.
My theory is that even though there is no residual pressure in the tractor's or the attachment's circuit, there is a trapped volume of fluid between the coupler and its control valve that will not compress when the coupler needs it to. Holding the valve open will give that trapped fluid a place to go.
It could also be that on new tractors and on connectors that are rarely used, the connectors are too tight to allow any necessary leakage. This might be why people with well used equipment dont have this problem.
Holding that valve open requires a second person but I keep a c-clamp handy if I am by myself.
Also, I bought some couplers advertised as self-relieving from Discount Hydraulic. They werent too much more that a pair of regular flat faced couplers and they worked every time so far on the Gehl. I havent installed them on the Kubota yet.
npalen
Elite Member
Plus one on using the valve to relieve pressure when plugging in.
k0ua
Epic Contributor
Yes, that would work, and if you do what I outlined to do, which is as soon as you uncouple from the tractor, you couple the ends of the implement back together, assuming you were smart enough to have both a male and a female end so they will couple, THEN you uncouple the ends and let some of the oil puke back out on to the ground. It is a couple of drops . Then you couple them back together to prevent the ingress of dirt or water or water vapor. There will be a deficit of oil in the lines as some puked out when you did the couple and uncouple thing. NOW pressure cannot build to the extent that it could, and even if a little pressure builds in the lines there is a little air in the lines, and you can compress the air as you couple the couplers back together on the tractor at a later time. Oil in in compressible, and air is compressible. If you do what I said to do, YOU WILL NEVER HAVE A PROBLEM HOOKING BACK UP AGAIN FOR AS LONG AS YOU SHALL LIVE.
k0ua
Epic Contributor
As you say, there isn't any pressure on the tractor side because with the pump shut off, you work the valve back and forth and any pressure in the lines is relieved thru the valve as it dumps any pressurized oil back to tank. You do this as soon as you shut off the tractor before you attempt to hook up the lines. AND because you followed my advice about connecting and disconnecting again the lines on the implement there won't be significant pressure on those lines either because there is a tiny amount of air in the lines. AGAIN, if you follow my advice you will never ever again ever as long as you shall live have a problem hooking up QC's. There is no problem hooking up QC's except what we make. But humans are hard headed and proud, and love to make problems where there are none.
k0ua
Epic Contributor
For those of you that have the same *** of coupler on your implement you could easily make a 6 inch piece of threaded pipe (pipe nipple) and the opposite *** couplers one each end of this pipe and plug in your implement's couplers as soon as you take them off. This will do two things. Ensure that no pressure will ever build in the lines of the implement and also keep the couplers clean on the implement. Just clean out the pipe of waste oil once in a while.
CalG
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Here is today's version
Kubota Auto Hitch with snowblower & blade - YouTube
Hands free!
Times HAVE changed. OP.... Get with today's program!
Kubota Auto Hitch with snowblower & blade - YouTube
Hands free!
Times HAVE changed. OP.... Get with today's program!
They know it, they just don't add the extra cost to all of the product lines. Most consumers aren't demanding anything better, so why bother?
Multi-X Range – Advanced technology made easy and user friendly | CEJN
Quick Coupling Solutions for Multi-Plate Requirements | Stucchi USA
npalen
Elite Member
Single-point hydraulic connection to save time and eliminate oil loss
The "SINGLE POINT HYDRAULIC CONNECTION" mentioned by BIGTILLER in post #34 above is shown in this video at the 14:22 time.
The "SINGLE POINT HYDRAULIC CONNECTION" mentioned by BIGTILLER in post #34 above is shown in this video at the 14:22 time.
Fiziksgeek
Platinum Member
Anyone mentioned the loader hydraulic connector on the new Kubota BX80 series? Seems like that is what you are looking for. Makes a lot of sense for homeowner type use, where you might be taking the loader on and off more often...and are willing to pay for easy-of-use features.
bigtiller
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When I clicked on it all I got was a page from a H480 loader manual for a series 7 & 8 row-crop tractor. Here is an interesting vidio but the guy doesn't say anything. I don't know if it is homemade or factory.
No drip connect coupling for FEL on John Deere 272 - YouTube
npalen
Elite Member
npalen
Elite Member
Multi-X Range – Advanced technology made easy and user friendly | CEJN
That appears to be the "Multi-X" mentioned in post #52 above.
Bavarian
Platinum Member
Don't expect this to be a cheap and easy solution. Those couplers are pricey and you still have to release the pressure.
I hooked once up without releasing the pressure and blew a seal. It wouldn't fit on my pinky finger and it was $30.
What it sounds like to me is it's all about the pressure, before hook up one must relieve the pressure, in 11 years I never taken my FEL off but when I do I'll try to remember to relieve the pressure, if that dont work I start throwing hammers to relieve my pressure.
npalen
Elite Member
Anyone else remember the quick couplers, of fifty or so years ago, where you inserted the male tip and then gave it a twist to lock it in? The female part had a helical groove to accept a pin in the male part and then a detent at the end of the groove. Not sure but I am guessing they could be connected under pressure. Maybe a good simple idea lost in time?
