hyd coupling

See pic. Pioneer. For the life of me I can't get the hose to come out. As marked, everything free. The sleeve just doesn't move back or forward.

3rd arrow from left should be the sleeve.


I can't get pic to load. I'll see if my sister can....


This post was edited by sonnythomas on 04/14/2023 at 03:52 pm.
 
i think the problem is is that them balls in the coupler have worn themselves into the coupler housing and jam up. tap the sleeve back with a
hammer. do this with tractor shut down and work the hyd. lever back and forth first to relieve the pressure.
 

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posting for brother Sonny Thomas
 
It's just like I said, you'll have to take a wrench, or a pickle fork for removing tie rod ends or something between the hex part of the tip and pry against the cast breakaway bracket. You've got so much pressure on it, it won't release.

Maybe, with the throttle up above 1400 or so, you might be able to release the pressure by moving the lever. Watch the hose to see if it relaxes when you do, then try jerking it hard. Those Pioneer couplers can be a bear under pressure. I generally just do the Cresent wrench trick to unhook my discbine. I don't know why the ones on that thing hang up as bad as they do.
 
My Kuhn discbine was the same way with the swingout cylinder. Which never made sense since there is an in-line shutoff that should keep pressure off the coupler when in the closed position. Plugging in and unplugging from the 1850 drove me crazy. I bit the bullet and put the high pressure couplers on the tractor and life got a lot easier.
 

That sleeve is keyed in place and locked into the cast iron part.

I felt around the back side and felt bolt head. I had to pull the whole thing apart. Removed bolt and 2 wedges that fit in the groove of the sleeve. No wonder the sleeve wouldn't move.

The cast iron part will only let the coupling in just so far. With key removed I rammed the coupling in and hose popped out easily.

Again, I can't get my pic to load. I'll get sister on it.
 

Oliver 1650. No relieving of hyd pressure. Pump don't run, nothing. I raised hoist so bucket was 4 feet off the ground. Shut off tractor, waited a bit and then played the levers. The hoist would not drop.
 
(quoted from post at 04:16:08 04/15/23) It's just like I said, you'll have to take a wrench, or a pickle fork for removing tie rod ends or something between the hex part of the tip and pry against the cast breakaway bracket. You've got so much pressure on it, it won't release.

Maybe, with the throttle up above 1400 or so, you might be able to release the pressure by moving the lever. Watch the hose to see if it relaxes when you do, then try jerking it hard. Those Pioneer couplers can be a bear under pressure. I generally just do the Cresent wrench trick to unhook my discbine. I don't know why the ones on that thing hang up as bad as they do.


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This post was edited by sonnythomas on 04/16/2023 at 08:06 am.
 
Was the loader plugged in there then? I wonder if somebody cobbled that rig up so the hoses wouldn't pop out on
their own?
 
(quoted from post at 11:44:25 04/16/23) Was the loader plugged in there then? I wonder if somebody cobbled that rig up so the hoses wouldn't pop out on
their own?

Doesn't appear to be cobbled rig. That cast iron part looks like a store bought part.
The other side (flat steel) looks the same except for different couplings. And the very bottom hole has electric wire on the back side going to the tractor. I read where this tractor has electric hydraulic control for set depth. There are 2 buttons (eletric), one on each lever.

Other pic, left side controls bucket. This side shown controls hoist.


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These have those long ends. Supposed to be superior coupling (?)

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This post was edited by sonnythomas on 04/16/2023 at 01:00 pm.
 
Here's the buttons I told of and where the wire from the bottom hyd holder feeds up and over to the top of whatever it is.

I reduce my pics way beyond what I do for other forums and they still come out big.....


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mvphoto104752.jpg
 
Those are for the hydra lectric cylinders. A cord plugged in to the Oliver hydra lectric remote cylinders. They had
internal stops and were activated with internal magnets to set the depth.
 
Moving the levers when the tractor is shut off does not relieve pressure on a Oliver. Couplers must be able to couple and uncouple under pressure. Those couplers are factory couplers, so they are as old as the tractor. Go get a set of lever release couplers and install, problem solved.
 
(quoted from post at 19:50:47 04/17/23) Moving the levers when the tractor is shut off does not relieve pressure on a Oliver. Couplers must be able to couple and uncouple under pressure. Those couplers are factory couplers, so they are as old as the tractor. Go get a set of lever release couplers and install, problem solved.

The green cast iron part - 1st pics. It was on upside down - clamps to the inside where I couldn't see them. Only feeling around did I detect a bolt head. Got that figured out and coupling and uncoupling was a no issue. Part is on now so that bolt heads and clamps can be seen. I think I pictured it.

The other side, flat steel hyd hose holder, has snap rings that hold the coupler in place. Just shove in the main part and push in the male in - no issues.

I do have a question though. My brush hog has a gravity drop cylinder - only one hose to lift. I don't think it's going to work. I mean, I have power up and power down. Seems one side or the other would be going against each other.
 
Honestly, if you can put a 2 way cylinder on it, that's what I'd do. You can use a one way, but it's a process, and
when you're using it, the 3pt won't work.
 

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