Loader WHAT IS QUICK ABOUT QUICK COUPLINGS?

[LouNY]

Hey, I like that system! That fast connect beats the **** out of quick connect! It looks like the European units I've seen. "Splurting the fluid"? Sounds a bit like, "priming the pump". I doubt there are many below the age of 40 who have heard either term. Hence, antiquated. A unit like the one you referenced on page 38 should be standard equipment on any new tractor today, preferably universal fit and across all brands.

If the standard quick coupler is so bad for you why don't you go ahead and change it out for the type shown in post #7, it is part of the free market system. If someone comes up with a better idea that enough people desire they can market it and succeed. To me the pioneer quick connect works it may not be the easiest or the cleanest but it works reasonably well. I can remember trying to clean and connect the older style threaded connectors , what a pain dirt, grit, crossed threads. We have the multi port on a IH Puma 125 with a loader, we seldom remove the loader and when we do that multi port is difficult to get cleaned up as well as it should be, the not in use cover is a pain and it takes a careful and deliberate two person job getting it lineup and positioned to reconnect and the numerous O-rings to watch out for. If we where removing and reinstalling the loader several times a month it might make sense but we don't. The standard quick connects a couple of paper towels and a can of wd-40 and we are clean, connected and going. So if it is such a bother change your system but backwards compatibility and universal connections work for me.

 

[aczlan]

I am specifically talking about "re-attaching" my loader after it has sat on a solid, flat, concrete floor for 7 months. My tractor is not the problem. It is the implement lines that have built up pressure from relaxing over time. If the lines are reattached in a week, there is no problem. Maybe the problem lies in the JD loader having no direct leg that removes pressure from the cylinders?

The issue is more likely that it was cold in Nov when you removed the loader and its warm now, so the fluid in the lines has expanded and now is preventing the quick connect from opening.

Aaron Z

 

[k0ua]

Same here.
I connect/disconnect my loader, backhoe and rear remotes often and very rarely have an issue.

Same here. Never a problem. I had one That developed a leak soon after the installation, but I swapped it out and it doesn't leak a drop now.

Look, one thing that can help, is after disconnection the QC's Immediately re-attach them. Then disconnect them again. This will "puke" out a very small amount of fluid and create a "fluid deficit" in the implement lines. This will make re-attachment easier when the time comes. There are pliers like devices that will depress the seating balls to remove pressure, but I havent ever needed to do so since I started doing the double disconnect thing.

 

[4570Man]

Try running the tractor a while before you disconnect so the fluid is at operating temperature. I’m betting between that and proper bleeding the problem goes away.

 

[npalen]

Product Detail
Hydra-Snap for 1 Series Loaders Parts | Westendorf


Hydra-Snap Parts | Westendorf
Product Detail


Flat Face Hydra-Snap Parts | Westendorf

https://www.youtube.com/watch?time_continue=3&v=3JQaGv10X8A
Interesting video.

Here are some manifold connectors made by Westendorf Loaders in Onawa, IA. I looked at them when buying the Westendorf TA-111 loader for my Mahindra. Just thought the info might be of some interest and of more value than arguing whether or not they are needed.

 

[4570Man]

I’m betting all these fancy couplings still don’t work if you’ve got heat expansion.

 

[TerryR]

I'm betting all these fancy couplings still don't work if you've got heat expansion.

Actually, some of them do have built-in pressure relief features to deal with that. You just have to be ready to spend the big bucks they cost.

 

[Talisker]

I've never tried that. It sounds like a good idea. Thanks! I've never heard of the pliers either. I'll see if I can find a pair.

 

[Talisker]

That Westendorf system looks awesome.

 

[RickB]

The average CUT buyer will not dismount their loader. So MFGs typically skip the added expense of a single point hookup.

 

[aczlan]

The average CUT buyer will not dismount their loader. So MFGs typically skip the added expense of a single point hookup.

Plus, let's say you change from a loader that uses 4 connections to a front snowblower that has manual (or electric) rotation for the chute, that will only need 2 connections.
Do you still use a 4 connection adapter that needs to have 2 ports plugged, or do they need to make the adapter that can use either 2 or 4 ports on the implement side?

Aaron Z

 

[flusher]

Put the dust caps on the female couplings after disconnecting the hoses. I wrap shop towels around the male couplings. I keep a squeeze bottle filled with hydraulic fluid in the tool box on the tractor to lubricate the couplings prior to reconnecting the hoses.

Good luck

 

[npalen]

http://www.ematerialhandling.com/parker/quick_coupler_division/hydraulic/9200_series/9200_series.pdf
Connect Under Pressure Couplings | MRO Stop Technology

Above links are some info on coupling under pressure. They are not cheap.

US8955864B2 - Docking station
- Google Patents

This is a design and patent that I and a couple fellow engineers worked on and applied for a patent back in 2011 prior to my retirement. It is a method to circumvent the problems of leakage and contamination of coupler tips when an implement is disconnected from the tractor.

It was an interesting project where we developed, using 3D design and rapid prototyping (3D printing), the profile for the resilient receptacles into which the male tips are plugged. The design contains a receptacle to catch any leakage from the hose tips rather than let it drip to the ground. (EPA)

This is probably not of interest to many but thought is was applicable to the thread subject.

 

[bigtiller]

First, a question. When you take the loader off are you letting the parking stand travel all the way back so that the loader clamps close by them selves? If not, doing this may solve the problem. If the stand doesn't go all the way back, the loader will creep forward over time until it builds pressure in the cylinder.

Second, ask your dealer about an optional SINGLE POINT HYDRAULIC CONNECTION. It's available for the new 2-series tractors. Maybe it will fit on your 2720.

232R & 238R Attachments - Mutton Power Equipment Blog

 

[npalen]

That's the first I've seen of the single point on CUT's. Probably will be showing up on other brands also. I would guess that it surely connects under pressure?

 

[Sawyer Rob]

If I were in the hydraulic business and couldn't come up with a better coupling than the standard quick coupling I would have to shoot myself. I'm sick and tired of dealing with these fittings. Googling, I found European units with a lever handle that actually are quick couplings with a single acting lever for 4-6 or more fittings. Today I removed the snowblower and installed the bucket on my JD 2720. This is not an old tractor,(2012) and today with the attachments would cost 35k. The process sucks just as much as I remember from last year. The loader has been in heated storage on a smooth concrete floor for 7 months. Why do I have to use a wad of paper towels and shove with all my might against the seating platform to release the pressure to get these fittings so that they will engage and attach? Fluid all over my hands, all over the floor, all over my tractor. My tractor has 225hrs on the hobbs and I've got a trash can cover on the floor under my hydraulic fittings so that I don't get fluid all over my new floor from leaking fittings as my tractor spends most of its time just sitting there looking pretty and leaking. THIS SYSTEM ABSOLUTELY SUCKS!!!!! There is no excuse for this. My tractor has leaked since about 50hrs. It's time for all respectable manufacturers to find a solution.

Don't blame the coupler, blame the mfg of YOUR tractor for putting the cheapo ones on it!

On my tractor, to put them on, you just push them in and they are locked into place. To take them off, you just pull them out... (the hoses)

SR

 

[Sawyer Rob]

Also on my tractor, it has the single point connection for the loader...

You can blame john deere for not having THAT std on their loaders too... lol

SR

 

[Oldoak]

Have to laugh. Funny how real farmers never complained so much about "quick couplings". :laughing:

 

[npalen]

You must not read NAT. (NewAgTalk)

 

[arizona98tj]

Before you unhook do you turn your tractor off and cycle the controls in all directions for a few seconds. Then when youæ±*e ready to hook back up do the same? I don稚 ever have issues with mine and that includes front and two remotes in the rear that get used frequently

Brett

Exactly.....my Dad taught me to do that some 50+ years ago and it hasn't failed me yet.