Reload Parameters/System initialization after battery Failure:

1. Change Battery
2. Power up the system, it should display the siemens logo on the screen
3. Press "Area Switchover" button
4. Press "Start-up" button
5. Press "Gen. Reset Mode" button
6. Press "Format NCK AWS" button
7. Press "^" button
8. Press "Machine Data" button
9. Press "File Functions" button
10. Select the bottom window & highlight the appropriate machine parameter file as per machine type. eg Hit-18S if it's an 18S lathe
11. Press "Load Start" button
12. Press "Yes" if prompted to overwrite machine data
13. After file transfer is complete press "^" button two times
14. Press "Gen Reset Mode" button
15. Press "Format NCK AWS" button
16. Press "PLC General Reset" button
17. Press "End Gen. Reset" button
18. Wait until control comes out of general reset mode
19. Power off machine
20. Power on machine
21. Home machine & select automatic mode
22. Type in "L965" & press "Select job/Progra," button two times
23. Press "Cycle Start" button
24. Machine is now ready for normal operation

Resetting maximum spindle speed after doing the above (Otherwise it's set to 50RPM max)
1. Press "Machine" button
2. Press "Setting Data" button
3. Press "Axis/Spindle Limitations" button
4. Move to maximum RPM & set to the correct speed 4200rpm for 18s or 4800rpm for 15S
5. Press "Machine" button
6. Press "Setting Data" button
7. Press "General Data" button
8. Scroll to Work Co-Ordinate Display & press "Select" or "Input" button to set to yes