99.99999% of the adjustments and troubleshooting can be done right through the dash.

All you need is the password.

The factory default is 55555, but it should not get to a customer that way.
Once it's out of warranty, the dealer can't have any problem with giving you the code to the unit you own, if they do, post it here and I'll get nacco to kick some butt.

We (sHyster dealers) are not allowed to sell the software or the adapter.
Sorry, but that's how it is.

But you don't really need it.
The codes can be looked up, just ask...