I just recently bought a used 2013 John Deere 310SK.. so far its a great machine, seems like when you use the return to did feature the bucket dont set quite level. is there away to adjust this so that its sit level with the ground? now its about 2 inches high in the front?
typically there is either a slider sensor or one on some rotating part at the bucket linkage. A newer machine like that will probably have the rotating switch. Look for electrical wiring on the boom, going to some of the bucket linkage.
The switch is mounted where the loader boom attaches to the machine on the right side. The bracket with the switch on it has a slot for adjustments. Use an 18mm wrench and loosen it and adjust as necessary against the cam ring it is riding against.