Well, shucks. ask the service manager at the (yellow) JD dealer. You can do it when you ask for the complete history on your JD - if they do that there. He can show you where the "engine computer" mounts to the inside of the frame just forward of the battery box after you open the hood. Or hopefully in yours it is in the cab, instead. It's a box not much bigger than your hand and has a 20+ pin plug in one end. I bet he knows all about it. My dealer had two rebuilt units in stock for instant trade-out. They have to be matched to the tractor....
BTW, everyone at my yellow JD dealer is a delight to talk to after the green JD dealer.
They didn't sell me the machine, never met me, and they are huge dealer. But everyone there always tries to see if they can add a little extra value to my visits.
Yeah, the 310 is a classic. Each model is better than the last. Good ones are amazing durable.
On the other hand, you need to buy one with everything you want. Just adding a thumb to our 310 would cost about half what the Kubota cost new - and the Kubota came with a thumb.
rScotty
I actually did consider the Kubota
M62, but four things hurt it:
1. I already have a new Massey Ferguson 4707 with the upgraded loader. An
M62 is a more capable machine (loader wise) than the 4707, but not by a significant amount. We do some materials handling on our farm, most of which is loam, so the loader portion of a machine is important to me. The
M62 simply wasn't enough of an upgrade over what I have now. A 410 is a HUGE loader upgrade over either the 4707 or the
M62.
2. Emissions. I've heard horror stories of problems with equipment with emissions controls, namely DEF and DPF, so I wanted to avoid that stuff. A used 310 or 410 from before 2013 checks that box.
3. No cab. After buying this 4707 with a cab, heat, A/C, and an air ride seat, I don't want to go back to open station. This '07 410J has all those features, too. I'm thrilled to have found it.
4. Price. It's astonishing that *IF* you can find a used
M62, they will command more money than many 310s and 410s. A new
M62 is nearly $100k optioned out and you don't even get a cab.