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Hydraulic Hose Coming Loose At Coupler

K

Kelly in tx

Member
I grew up without hydraulics, so I'm still way behind the curve. One of my hydraulic hoses is coming loose at the coupler. By this I mean it is disconnecting at the connection. It seems to be the female side is allowing the inserted end to pop out. Do I just need to replace the female end, or both male & female parts or??? Thanks, kelly
 
Is the female end in a holder? If so there may be something binding allowing the sleeve to be pushed back. Otherwise the previous link is right, just get a matching set
 
I've been around remote hydraulics my entire life and have never seen that happen from wear. My guess is the hose is to short and when you turn sharp it is pulling apart.
 

ASSUMING the hose is long enough that it's not tugging at the coupler the first thing I'd do is take a CLOSE look at the male tip.

The balls in the female half can chip away at, or simply wear the area where they contact the male tip and hold it in place, making it easier for it to uncouple.

Even if no obvious damage, might as well replace the male tip FIRST (NOT expensive or hard to do) and see if there's any improvement, if not replace the coupler body, as well.
 
Is this happening when you first hook up?If there is ANY pressure on either side,you wont be able to hook up.It may seen to be hooked up,but it wont be. Bleed off pressure before attempting to hook up.
 
Thanks for the replies.
Delta Red, it is happening in the field. There is no pressure on the male end, as I make sure to bleed that each time I re-couple it. Also the female end is a ball, but I turn off the tractor engine and move the lever back and forth trying to ensure there is no pressure.
wore out, I've watched carefully and the hoses are plenty long and are NOT tugging. As I said above, the female end has a ball in it and the male end has one of those small 1/8??? tips on it.
Tx Jim, it's my Oliver 1850 and the couplers are, I believe Pioneer breakaway ones.
flying belgian, the hoses are NOT too short.
Moonlite37, yes the female end is in a holder and I can't see any binding
wjytexas, I suspect I'll need to do what you've suggested. I'm wondering tho, if the male end needs to be a ball end rather than the pin type tip???
 
Oliver hydraulic couplers are under constant pressure, moving the levers does not relieve the pressure on the line. Oliver requires couplers that will couple under pressure. I've had the same couplers on mine for 20 years, the only time they come unhooked is when pulled on.
 

Kelly
I'm not familiar with Oliver 1850 breakaway couplers.
Are the 1850 breakaways the type one can simply push male tip in & pull male tip out or does one have to slide coupler outer sleeve forward to insert male tip? I agree with others replacing male coupler tips would be the 1st step.
 

On a tractor that old you don't know what the original may have been replaced with. It sounds to me like incompatibility. BTDT. Perhaps you could take some pics of your tips and visit a dealer and see how the ones on the new tractors and implements look compared to yours.
 
Simple test, swap the hoses. If the pop out problem follows the hose, it's the male tip. If the pop out problem stays with the tractor, it's the female coupler.

It's relatively inexpensive to just change the tips out with new so if you want to just throw parts at it...
 
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