QUICK-ON TOOL

[J_J]

Yes. some QD's have a locking sleeve to prevent accidental disconnect. The sleeve has to turn and then you push or push to release the disconnect..

High Pressure Quick Connect Hose Couplings

 

[jinman]

I would bet that with a little cutting/welding, you could turn one of these Vise-Grip pliers into an assembly aid.

 

[JoeL4330]

On skid steers and track loaders you have no hydraulics with the engine off, so it's impossible to relieve the pressure on those fittings like you can on a tractor. It's a safety feature. I've tried to lower the bar and turn the key on and then move the joystick to relieve pressure, but that doesn't work either. I've never had any issue on a tractor. You just shut the engine off and cycle each cylinder several times until the pressures are equalized. You can't do that on the bigger skid steer fittings and they're a real bugger at times.

Sounds like pilot check valves, no? However, I wrote, in another post, about couplings that were designed to mate under pressure (S70s)...see attached PDF. If that's your problem, you might give them a try ...I'm guessing that is what is used on machines with hydraulically operated hookup.

I agree about the size of the tool and question whether it would work on my bracket-mounted QDs ...in the video it seemed to work well for unmounted (no bracket or bulkhead mounting) QDs. My problems were solved when I switched over to the sliding-sleeve, bracket-mounted couplers (S40s)...see second PDF, attached ...but, you do need to relieve the pressure by cycling the spool through neutral a time or two.

As for the left-open grapple, use a bottle jack to open it a tiny bit more...and, remember to leave it closed the next time...I don't believe that solar heating matters much ...but if it does, I had a hose made up that can connect together the to-from hoses of my implement, and thus always keeps the pressure equalized ...it works fine; I don't see how just putting on stubbed QDs would work, as desribed, but maybe.

 

[Tony H]

Holp GmbH · Im Beundle 1 · D-71540 Fornsbach

I've been eyeing this tool as well. I'm not going to replace fittings on all my Attachments not to mention I bet I can't find connectors in the British threads size that my Tractor takes.
I cannot believe that this tool, two years after this thread started, is still not available here in the USA OR at least some tool. Many places do not allow a drop of Hydraulic oil.. Heck that's why they invented the Flush face series (ISO 16028).
Very frustrating to drop off the 4:1 bucket and hook up the Log Splitter or snow plow, then can't get the 4:1 hooked back up.