6-1
NJ-series CPU Unit Hardware User’s Manual (W500)
6
This section describes the required inspections and maintenance. It also describes the
service lives and replacement procedures for the Battery and Power Supply Units.
6-1 Periodic Maintenance and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1-1 Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1-2 Unit Replacement Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-2 Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-2-1 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-2-2 Operation without a Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Inspection and Maintenance