C4 Maintenance  2. General Maintenance 
 
6  C Series Maintenance Manual Rev.2 
2.1.2  Inspection Point 
Inspection Point 
Inspection Point  Inspection Place  Daily
Monthly
Quarterly
Biannual
Annual
Check looseness or 
backlash of bolts/screws. 
End effector mounting 
√  √  √  √  √ 
Manipulator mounting 
√  √  √  √  √ 
Check looseness of 
connectors. 
External connectors on 
Manipulator (on the 
√  √  √  √  √ 
Visually check for external 
defects. 
External appearance of 
√  √  √  √  √ 
Check for bends or improper 
location.    Repair or place it 
Safeguard etc.  √  √  √  √  √ 
Check either the external 
short connector or the brake 
release unit connector is 
connected. 
The external short 
connector on the back 
side of the Manipulator, 
or the brake release 
√  √  √  √  √ 
Check the break operation 
Check whether unusual 
sound or vibration occurs. 
Whole  √  √  √  √  √