Hydraulic quick couplers wont connect - grapple, 3ord function. Help?

[FlyFishn]

Ive been fighting these connectors for close to an hour. I cant get them to connect. The male implement end wont go jn at all. The female implement end does - but not far enough to lock. And I cant work the sleeves on the female ends - they are both locked.

Im sure Im doing something wrong. What?

The tractor engine is off and I tried to drop the loader and 3 point so there wasnt any static back pressure from the implement weight. But maybe I still have pressure somewhere?

Kubota LX2620 tractor
Land Pride SGC0660 grapple

 

[EscapedSuburbia]

There's still pressure in the hoses, possibly because the temperature has risen since they were disconnected. These clamps make it easy
Amazon.com

 

[Seven Gables]

Ive been fighting these connectors for close to an hour. I cant get them to connect. The male implement end wont go jn at all. The female implement end does - but not far enough to lock. And I cant work the sleeves on the female ends - they are both locked.

Im sure Im doing something wrong. What?

The tractor engine is off and I tried to drop the loader and 3 point so there wasnt any static back pressure from the implement weight. But maybe I still have pressure somewhere?

Kubota LX2620 tractor
Land Pride SGC0660 grapple

Those flat face couplers have a tiny protrusion and notch that have to be aligned on the females spin the collar until they align and then retract the collar

 

[FRISKY]

Try tapping the ends of the couplers on something metal to relieve the pressure. Sometimes it takes a pretty good "tap."

 

[Lineman North Florida]

There's still pressure in the hoses, possibly because the temperature has risen since they were disconnected. These clamps make it easy
Amazon.com

This, I have a skidsteer and used to fight this all the time, so order you one of these and you will be glad you did, but in the meantime you are either going to have to tap on the poppett in the center of the connector or break the hose pressure by unscrewing the hose from the connector and as soon as you start loosing fluid you have released the pressure, connect the fittings and tighten hose to connector fitting back up. One other tip that helped me if the problem is on the grapple side when you disconnect from the grapple leave the jaws of the grapple slightly opened and when you put pressure on the fittings to re-connect it makes releasing the pressure easier.

 

[TMGT]

Try tapping the ends of the couplers on something metal to relieve the pressure. Sometimes it takes a pretty good "tap."

Don't do that on those flat face, it won't work and if you do manage to depress the end on something pointed its very likely to damage the seal in the coupler.

Best bet is to crack a line lose if you need to relieve pressure. (Crack the line down where the hose goes into the T on the grapple since that is a JIC doesn't require sealant.)

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