8.4    Replacement of Major Parts
yyyy
yyyy
8.4  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. 
 
 
WARNING 
Direct exposure to electromagnetic waves at close range 
will have adverse effects on the human body.    When it is 
necessary to get close to the scanner for maintenance or 
inspection purposes, make sure to turn the indicator power 
switch to "OFF" or "STBY." 
Direct exposure to electromagnetic waves at close range 
will have adverse effects on the human body. 
When conducting maintenance work, make sure to turn off 
the power and unplug the power connector J1 of the radar 
process unit so that the power supply to the equipment is 
completely cut off. 
Some equipment components can carry electrical current 
even after the power switch is turned off, and conducting 
maintenance work without unplugging the power connector 
may result in electrocution, equipment failure, or accidents.
8 
 
 
CAUTION 
Make sure to shut off the main power before replacing 
parts.  Failure to comply may result in electrocution or 
equipment failure. 
When replacing magnetrons, make sure to shut off the main 
power and let the equipment stand for more than 5 minutes 
to discharge the high-voltage circuit.  Failure to comply 
may result in electrocution. 
8-12