any info why my 3point hitch wont work .mechanic says rock shaft problems
The "rock shaft" is your 3 point. That's the shaft that rotates to lift the arms. There's an internal hydraulic cylinder that turns it. Could be mechanical or hydraulic. Ask your mechanic for better details.
https://partscatalog.deere.com/jdrc...U9OLDU2Mjc6I0NBVEFMT0csNTcxODQ6RVFVSVBNRU5UXQ #19, 20, 21 start with controls and go from there......its basicly just a hydraulic circut with a internal piston.... those are parts diagrams...i dont own a manual on that model this is for the compact tractor....more than one type 4720
Most common issue is low oil level or a suction screen that isn't clean. Most of those systems are bulletproof mechanically.