cub_man said:
...If the powered quick attach used the hydraulics then you would have the switching etc using some sort of solenoid valve and things can get messy and less reliable from there. At least on the tractors that is. PowerTrac has a lot of extra hydraulic capacity so for that app I understand why they use hydraulic. Second was the hydraulic hoses would require 2 of them running through the pivot area on the loader which is a pinch point. If either hose becomes damaged you have problems. ...
Lets modify a standard CUT FEL quick attach system to make it power operated and not talk about a Power Trac for a moment since most folks have standard CUTS...
With an electric unit, you have to hook it up to the manual quick attach system and run some wires and other electrical stuff.
With a hydraulic unit, you have to hook it up to the manual quick attach system and run some hoses and other hydraulic stuff.
We end up with identical functionality at this point... flip an electric switch or valve lever and the quick attach latches open and close. Very cool and time saving for the operator.
Now pop on a grapple bucket, a pretty popular option.
How are you going to power the hydraulic cylinder to open and close the grapple?
If you have an electric quick attach that won't help you. You're going to have to run some hoses and other hydraulic stuff just like the guy that opted for the hydraulic quick attach did, right?
If we're going to have to run a hydraulic circuit up there anyway to run our grapple, why not put it to good use to have it run the quick attach circuit, too? No solenoid valves are needed. We just need quick disconnect hydraulic connectors on our hoses. When we hook up our grapple, we will flip the hydraulic valve located at the operator's station to lock the quick attach latch, securing the grapple bucket to our FEL. Then, set the brakes and shut off the tractor (safety first, right

). We get off the tractor, walk to the front, disconnect the hoses from the quick attach circuit and attach those same hoses to the grapple circuit. That's it. We're done.
Here's a video of how it works.
It takes about 9 additional seconds, if you watch the clock as the video runs.
I would venture to say that by shopping at a place like Surplus Center, we could put together a hydraulic quick attach circuit with valve and hoses for about $500.00, the same price as the electric unit. We would then have the same functionality as the electric unit with the advantage of an additional hydraulic circuit at the front of our FEL to power things.
As far as durability goes, I've had many more wires pulled out of my equipment than I've had damaged hydraulic hoses. I've also had many electrical component failures and no hydraulic failures that I can recall.
