C8 Maintenance    12. Replacing the Control Board 
 
C Series Maintenance Manual Rev.2  401 
12.2 Replacing the Control Board 2 
 
Removal: Control board 2 
1.  Turn OFF the Controller power. 
2.  Remove the Arm #3 cover. 
For details, refer to C8 Maintenance: 3. Covers. 
3.  Remove the connector connected to the control board 2. 
Connector: GS02 
 
4.  Remove the plate fixed to the Arm #3. 
Hexagon socket head cap bolts: 2-M4×10 
 
 
5.  Remove the control board 2 fixed to the plate. 
Cross recessed head screws: 4-M3×8