I'm looking at a 94 model 4020 with 88HS control.
I'm a couple hundred miles away but recently made a trip.

What I know so far. Machine powered down for several months.
Power up and have a memory corrupt error and need to Zero Memory.
They say the battery dies and it lost the params?
Can jog the X,Y,Z and they sound good. Pulled way covers back or both sides of X and jogged to limits and ways looks good and oily. Could not see or feel any turcite under table but visibility was limited.
Removed front Y cover from table, jogged back and ways look good any oily. All lube lines are in place.

Can't do a tool change or turn on the spindle because I guess the params are lost.
Checked backlash with DI and using MPG.
0.004 on X
0.006 on Y
0.010" on Z

Hopefully thrust bearings?

So my questions are......
1) Whats your thoughts on the BL. I assume we lost the BL settings.
2) Memory Corrupt Error and ZeroMem a result of a dead battery or something more serious?
3) Does Fadal store the factory settings on the machine somewhere are am I hosed...?
4) Does anyone know of a reputable company familiar with the Fadal and the 88HS in the Houston Area that can check the machine and perform an inspection?

Thanks,
Rev