there must be a better quick detach value

[millpond]

This weekend I was working with Millonzi LD66 grapple and wanted to change
back to the bucket. The slide backs/pull back on female valve are incredibly hard to push back to release the male connections. Going back was even worse. I gripped "quick detach" noses with two hands and father inlaw tried to reconnect male into female. We had released all the pressure from the noses but it would not snap back in. After 10 minutes of super hard pushing the ball baring all fell out from the female valve. There is NO way one person can reattach the grapple. This can't be right. There must "quick detach" noses that can take the 2500 psi and can be removed/moved back into place. I know plenty of you have grapples, but how can I move quickly from FEL equipment without an army to hold back slides. I think the dealer just doesn't have the right stuff...Or is that the way these noses really are..?The rear remote valves, which are mounted so there's leverage slip in and out fine, but the front connection noses are free to move other than the zip ties along the boom ...? Help me understand this difficulty..?

 

[Jay4200]

This weekend I was working with Millonzi LD66 grapple and wanted to change
back to the bucket. The slide backs/pull back on female valve are incredibly hard to push back to release the male connections. Going back was even worse.

Sounds stuck to me. My backhoe quick-release connections come apart and go back together very easily - one handed operation in both directions.

Give the connector a hefty shot with PB Blaster or WD40 and see what happens.

JayC

 

[millpond]

Jay 4200 do people talk about better brands in disconnect valves..? Or they all should work about the same..?

 

[Jay4200]

Jay 4200 do people talk about better brands in disconnect valves..? Or they all should work about the same..?

I don't know about that - I think you'd be limited by whatever brand the local tractor shop or NAPA uses when you get your hoses made.

JayC

 

[kennyd]

Millpond,
Are you shuting off the tractor and moving the joystick or control lever to relive the pressure on the lines?

 

[jdbower]

I've got Parker (3/8" Power Beyond) and Pioneer (1/4" FEL - seems compatible with Buyer) QDs on my 2520, the only time I've experienced what you're describing is when I forgot to bleed off the pressure after I powered off the engine. Could it be that something's preventing the pressure bleed?

 

[Steve_Miller]

It depends on which quick connects you have and whether or not there is still pressure on the hose when disconnecting or connecting. They make quick connects that can connect and disconnect under pressure, but they will cost a little more. If your having trouble, is there any dirt in around the female connector as I have had trouble like this before and it was just dirt not allowing the female ring to release completely which will not let the male connector pop out and seem like it is jamming.

Steve

 

[millpond]

I am going to stop the engine with boom/grapple up and open. Then bleed all pressure lowering and closing the grapple grippers but what about the sleave which took two hands to push back that's not under pressure right..?

 

[MossRoad]

Millpond,
Are you shuting off the tractor and moving the joystick or control lever to relive the pressure on the lines?

That's the best way to do it.... lower the implement to the ground, shut off the tractor, then wiggle the valve handle in both directions several times. That relieves pressure from both sides of the circuit.

 

[RoyJackson]

I am going to stop the engine with boom/grapple up and open. Then bleed all pressure lowering and closing the grapple grippers but what about the sleave which took two hands to push back that's not under pressure right..?

More then likely, a bit of pressure still built up. As Mossy and the other men wrote, move the joystick in all drections several times.

If difficulty when connecting those QD's, put a rag over the male end and tap it with a mallet (plastic or dead blow) to relieve pressure. For the female fitting, use a pin punch (flat ended) or dowel to push against the plunger.
The hydraulic fluid in implements setting outside (especially in the sun) can expand from the heat, increasing pressures...even if the pressure had been relieved previously.

 

[millpond]

Roy does that include the female sleave is that under pressure..It was really impossible to slide because it's under pressure also..?

 

[millpond]

Roy/anyone please.I have one more hydraulic issue if you have any thoughts. The curl valve at the main line of connectors has popped out male end three times. I have tried to pull the hose out just to make sure it's in tight and it seemed totally firm/snapped in. I lifted several heavy duty plastic culverts with the grapple and things were fine, but I took a pile of brush and shook debris free and boom male pops out from female. Now this winter I had no trouble moving snow with bucket and first day I have grapple the curl goes hay wire. Is there a safety feature so the actual line does blow which pops the male/female instead of the whole line..? Some release valve needs adjustment with just curl function as NO other movement in the hydraulic cycle has been compromised but the curl..? Bad valve from the beginning..?

 

[SPYDERLK]

Roy/anyone please.I have one more hydraulic issue if you have any thoughts. The curl valve at the main line of connectors has popped out male end three times. I have tried to pull the hose out just to make sure it's in tight and it seemed totally firm/snapped in. I lifted several heavy duty plastic culverts with the grapple and things were fine, but I took a pile of brush and shook debris free and boom male pops out from female. Now this winter I had no trouble moving snow with bucket and first day I have grapple the curl goes hay wire. Is there a safety feature so the actual line does blow which pops the male/female instead of the whole line..? Some release valve needs adjustment with just curl function as NO other movement in the hydraulic cycle has been compromised but the curl..? Bad valve from the beginning..?

This should not happen regardless of pressure. Is the connection being disturbed/ bumped during use.? If not I would replace the female connector.
larry

 

[RonMar]

Try putting a heavy duty ty-wrap or zip-tie behind the sliding collar incase it is being drug across something that is causing it to release. The Zip-tie keeps this from hapening.

As for the stubborn quick connections, the sliding collar should move easilly regardless of pressure as it is just held in place with a spring and only exposes the locking balls to an internal groove to allow the male end to pass. If the collar is stubborn, perhaps the QC has been crushed and that collar distorted or there is some debris in the collar mechanism that dosn't belong.

I have had to take a wrench to loosen a QC from the hose to relieve pressure on a stored impliment. The hammer and punch should also work as long as you don't distort the pins or check valves.

 

[millpond]

As usual thank you all for your expert advise. I will be investigating the sleaves for damage, but they are both brand new QC's. What I suspect with the sleaves being incredibly stubborn is manufacture of my hoses maybe not
the best about or maybe they need to be worked with wd40. I'll report back
with findings.

 

[RonMar]

I forgot to mention one other thought. This won't effect the stiff locking collar, but are the mating QC pairs tha same make? Missmatched QC's(same design, different manufacturer) might not be machined to the same standard and part unpredictably...

 

[millpond]

Just got a call from Millonzi and they suggest I look for a bleed off valve around the rear remotes. Can somebody tell me what that bleed off valve will
look like..? This is New Holland TC 55 DA..