A friend told me about this: QC Mate, it uses an Irwin Quick Clamp, has to be the 600 pound one, and you put the pieces on the clamp and it is supposed to work pretty good. My friend says it works like a charm for him. I'm thinking of getting one. Otherwise I have used a very large channel lock and made it work when needed. You can also get them on Amazon.
www.skidsteersolutions.com
QC Mate Quick Coupler Hand Clamp | XBoom
Hydraulic Quick Connect Couplers won't connect? The QC Mate Quick Connect Hand Clamp is the solution. Order yours today!
