Checking out a loader on a JD 770

[AKfish]

Well, it sounds like there's not a problem with the bucket cylinders and it's reasonable to expect that the loader arm cylinders are probably OK as well. Given that the loader may only raise the tractor an inch or two under most circumstances. Am I on track, here? In addition, if the loader cylinders are OK, the tractor should lift up when pushing the SCV lever down while in motion. Or would they work under that situation, even if bad?
I also believe if the pins are worn badly at the mast, you should be able to rock the cylinder (readily) back and forth and up and down to some extent when all pressure is off the loader and the bucket is on the ground, yes? OK, 3.5 cents worth... And since this is a new-to-you FEL check the symmetry of the loader on a flat surface. Arms even? Bucket flat on concrete? Does one side lift up before the other when under a "centered" load? Maybe a nickle here? /forums/images/graemlins/grin.gif AKfish

 

[RoyJackson]

"BTW, the loader is an SMC (Schwartz), not a JD. SMC's website says nothing about how low the bucket should be able to go. I think the dealer has another tractor with the same brand of loader; I'll ask to try that one out."

You'll have to contact the loader manufacturer (unless the dealer has the manual) for specifics. It appears you have a 2604S Loader.

As far as wedges...the older Deere loader used a wedge in the mast receptacles to keep the masts tight against the receptacle...sort of like using a wedge to shim a joint. It worked pretty good, but the #60 loader on my 670 moved around a bit more then the 419 loader on my 790.

This doesn't mean the SMC loader will use wedges. You'll have to contact the manufacturer about the issues you perceive.