[rmcard]

I have a neighbor with a JD 322 and he has a problem with all 4 of the quick couplers leaking. If it turns out that it's not the fittings leaking at the steel lines they are attached to and that the O-rings are bad, he's asking if there are diagrams available showing how the couplers are constructed and if there are o-ring sizes that he can obtain to buy replacements - rather than buying brand new couplers.

I'm hoping someone on this forum has dealt with this problem before.

 

[pa88316]

The o rings can be pushed in from the front, you need a small curved pick to remove the old ones, and the new ones fit nicely on your pinkie finger for the install. I believe it is size number 113. I replaced my o rings, but it didnt stop the leak, so i went ahead and replaced mine, and i also replaced the male ends, as they were rather in rough shape (prob caused the issue to begin with)

 

[ajcan]

Randall

My 322 leaked on all 4 couplers with my Buford bucket plugged in.I replaced the o rings and still all 4 leaked.I found the bucket had "Armstrong" brand male couplers.
So I replaced them with Deere/Pioneer brand couplers and it fixed the issue on three of the four.
Outside right still leaks.
So the question is do they leak with something plugged in or do they leak with just the dust boots on?

AJ

 

[wyogreen]

I've replaced the "O" rings on my 140 couplers several times over the years, and it has always fixed the leak. Seems like the "O" rings only last 3 or 4 years before they start to leak.

Steve

 

[Mike P]

I just replace the front 4 "0" rings on my 332. Seemed to fix the problem. The old ones were brittle and hard.

 

[rmcard]

My neighbor says they leak all the time, even if nothing is plugged into them. What he does plug in is a Deere 2 way front blade that came with the tractor so me not knowing anything other than that I can only assume that the connectors are all of the same manufacture.

I'll relay to him that he should look for size (AS56 #113 unless someone here suggests otherwise.

 

[rmcard]

Oh yeah, is there an internal AND external o-ring to these connectors??? Because my thought is that they do have to seal in both coupled AND uncoupled configurations.

It'd be nice if someone had an exploded view of a set of these couplers, both male and female.

 

[rmcard]

Thinking about it the Female would have possibly both a internal and external o-ring, where the male would probably just have an internal o-ring.

 

[grandpajay]

Google search on coupler diagram:

http://www.colemanequip.com/Case-450B-Crawler-Tractor-Parts/No-Description-vg/HYDRAULIC-QUICK-DISCONNECT-COUPLINGS-FEMALE-COUPLING-0i6i/

Just to get an idea about internal coupler parts.

 

[ajcan]

If it is leaking with nothing plugged in the O ring isn't sealing anything.
That is for when a male end is plugged in.


AJ

 

[wyogreen]

There's always a little oil left in the coupler when you unplug a line. I always clean mine out with a clean paper towel before putting on the rubber caps. You might try cleaning the coupler with a clean paper towel, then checking a while later to see if any oil is showing up. Might save a bit of money and work if nothing is really wrong.

Steve

 

[rmcard]

Looking at the Exploded view link there are obviously more seals beyond the outer O-rings, although getting at them appears to be the trick.

I'm not the one doing the repair so it'll be up to my neighbor to figure out how to take them apart.

As to the possibility that there may be only a couple drips of oil left over after disconnecting I've seen the oil puddles myself that are left on the ground wherever the tractor is sitting so I'm pretty sure they are active leaks.

I am curious as to if there is anyone who has actually disassembled these connectors completely to repair them and whether anyone knows if there are repair kits available with the all (especially the inner) seals.

 

[grandpajay]

Try:

http://www.mytractorforum.com/showthread.php?t=74063

Somebody went a lot deeper into the couplers.