GE C11 사용자 설명서

 

-72- 

 

Check part 

Check item 

How to inspect 

Evaluation criteria  

Resistor 

1)Unpleasant smell and crazing  
  of the insulation by  
  overheating 
2)No open circuit? 

1)Olfactory and  
  visual inspection 
2)Visual inspection  
  or use a multimeter  
  by removing a  
  connection on one  
  side. 

1)Not abnormal. 
2)Less than about ±10% of  
  the indicated  
  resistance value 

Trans-
former and 
reactor 

Abnormal buzzing or unpleasant 
smell? 

Aural, olfactory, and 
visual inspection 

Not abnormal. 

Main circuit

 

Magnetic 
contactor 
and relay 

1)Rattling when operating? 
2)Roughness of contact? 

1)Aural 
2)Visual inspection 

1), 2) Not abnormal. 

Control circuit

 

Control PC 
board and 
connector 

1)Loose screws or connectors? 
2)Unpleasant smell or  
  discoloration? 
3)Cracks, damage, deformation, or 
excessive rust? 
4)Electrolyte leakage or a  
  deformed mark on the   
  capacitor? 

1)Tighten more. 
2)Olfactory and  
  visual inspection 
3),4)Visual  
     inspection 

1), 2), 3), 4) 
         Not abnormal. 

Cooling 
fan 
(2 HP or 
more) 

1)Abnormal sound or vibration? 
2)Loose of bolts?  
3)Discoloration by  
  overheating? 

1)Aural and visual in-
spection.  Turn with 
hand. (Make sure power 
is off) 
2)Tighten more 
3)Visual inspection 

1)The fan must rotate 
smoothly. 
2), 3)Not abnormal 

Cooling system

 

Ventilation 
way 

Clogging-up or foreign substance on 
heat sink or intake/exhaust ports? 

Visual inspection 

Not abnormal 

 

(Note)    Use a capacitance measuring instrument available on the market which is easy to use. 

(Remark) If the equipment is stained, wipe it with a cleaning cloth, which is chemically neutral.   

Vacuum-clean the dust.