560 fast hitch jumping

Don Pine

Member
I'm bringing a 560D back to life. I've got her running but would like to try her out before I spend more $. I hooked her up to a mower/conditioner this past weekend, and when I applied the weight of the mower's tongue to the drawbar, the fast hitch started "jumping". Not much travel (maybe 1/2 inch) but a constant jump once per second or so. I could observe the cylinder working in and out slightly. Didn't matter what height I set the drawbar.

I decided the cylinder needed rebuilding (it does leak down after a while when sitting). But in browsing the archives, I see a lot about the check valve being a culprit for lots of these problems, but I haven't seen a topic about the hitch jumping with weight applied.

What do you guys think?

I did replace the bad lines/valve to the cylinder with a better looking set from a junked 460. (That was fun.) Also no visible hydraulic leaks now.

And, to try her out, could I replace the cylinder with one of those ratchet gizmos? Or would the tele-depth go crazy being unhooked?
 
Fasten the hitch solid.unhook the liftlinks from the rockshaft,swing them foreward to hook to some brackets on the rearend housing.that will give you a rigid hitch for towing.
 

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