
Chapter
4
74
ML-7 Series/ML-9001A
Chapter
4
Maintenance
5
Remove the lithium battery from the control board.
6
Insert the new lithium battery.
Be careful to insert the battery with the correct polarity.
7
Replace the cover.
■
ML-7064A
Have the following items ready when replacing the lithium battery of the ML-7064A:
•
Lithium battery (new)
•
Phillips screwdriver
1
About 30 minutes before replacing the battery, turn on the Power keyswitch of the Control Unit to
activate the battery.
This step is required to charge the internal power supply, which is used for data storage during
battery replacement. You may skip this step if the marker has already been in use for more than 30
minutes.
2
After normal marker shutdown, turn off the Control Unit Power keyswitch and the breaker at the
back (main power supply).
3
Unscrew the three fastening screws on
the Control Unit cover.
4
Remove the cover by sliding it back and
lifting it up.
Lithium battery
Control board
Control Unit, from right
Three fastening screws (M3)
Control Unit
Summary of Contents for ML-7 Series
Page 4: ......
Page 8: ...4 ML 7 Series ML 9001A Contents...
Page 82: ...Chapter 4 78 ML 7 Series ML 9001A Chapter 4 Maintenance...
Page 83: ...Appendix...