Some months ago I serviced the above mentioned machine, it used to show 2 alarms:
a) Spindle encoder fault
b) Spindle encoder following error
I serviced the spindle motor encoder, the spindle drive and the magnetic contactor for winding selection. Right after that the machine started working fine. Now that I have some spare time, I decided to upload a video showing that service, hoping it will be used as reference/help by somebody out there.
"http://www.youtube.com/watch?v=hVMztLYib8Y"]YouTube- SOLVED...Hurco 40 SLV with Ultimax 3