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4.16 Maintenance work of intake fan unit 
 
4.16.1 Structure of Intake fan unit 
   
 
 
 
 
 
 
 
 
 
   
 
4.16.2 Replacement of Intake fan unit 
 
1 Turn off the power. 
 
2 Loosen the thumbscrew and remove the Intake fan cover. 
 
 
 
 
 
 
 
 
 
 
3 Remove the Air filter. 
   [Note]    The Air filter has front and rear faces.   
Set the filter with red-mark being invisible.