15-19 Section 15 Maintenance & Inspection
15.5 Replacement of Major Parts
The system includes parts that need periodic replacement. The parts should be replaced as scheduled.
Use of parts over their service life can cause a system failure.
Turn off the main power source before inspecting and replacing parts.
Otherwise, an electric shock or trouble may be caused.
15.5.1 Parts expected for periodic replacement
Here are parts expected for periodic replacement.
Part type Name Part name Life expectancy
Replacement
kit type
NKE-1130 S band radar Magnetron 4,000 hours CMG348
Motor 10,000 hours MDBW10823
FAN for motor driver
circuit
20,000 hours 7BFRD0002
FAN for modulation
20,000 hours 5BFAB00674
NKE-2255 X band radar
FAN for
20,000 hours 7BFRD0011
NKE-2255-HS X band radar
FAN for
20,000 hours 7BFRD0011
NKE-2103 X band radar
NKE-2103-HS X band radar Magnetron 4,000 hours 5VMAA00102
NKE-1632 Solid state
radar antenna
FAN 100,000 hours 109L0912S410
NKE-2632 Solid state
radar antenna
FAN 100,000 hours 109L0912S410
NKE-2632-H
Solid state
radar antenna
FAN 100,000 hours 109L0912S410
*When the estimated replacement time arrives, a message urging the replacement will be displayed.