Scara Robot Manipulator Manual
Maintenance 2. General Maintenance 
G3 Rev.1  69 
2.2 Inspection Point 
2.2.1    Inspection While the Power is OFF (Manipulator is not operating) 
Inspection Point  Inspection Place  Daily Monthly  Quarterly  Biannual Annual
End effector mounting bolts  √  √  √  √  √ 
Manipulator mounting bolts  √  √  √  √  √ 
Each arm locking bolts  √  √  √  √  √ 
Bolts/screws around shaft          √ 
Check looseness or backlash of 
bolts/screws. 
Tighten them if necessary. 
(For the tightening torque, refer to 
Maintenance: 2.4 Tightening 
Hexagon Socket Head Cap Bolts.) 
Bolts/screws securing motors, 
reduction gear units, etc. 
      √ 
External connectors on 
Manipulator (on the connector 
plates etc.) 
√  √  √  √  √ 
Check looseness of connectors. 
If the connectors are loosen, push it 
securely or tighten. 
Manipulator cable unit    √  √  √  √ 
External appearance of 
Manipulator 
√  √  √  √  √ 
Visually check for external defects. 
Clean up if necessary. 
External cables    √  √  √  √ 
Check for bends or improper 
location.    Repair or place it properly 
if necessary. 
Safeguard etc.  √  √  √  √  √ 
Check tension of timing belts.     
Tighten it if necessary. 
Inside of Arm #2        √  √ 
Grease conditions  Refer to Maintenance: 2.3 Greasing. 
2.2.2    Inspection While the Power is ON (Manipulator is operating) 
Inspection Point  Inspection Place  Daily Monthly  Quarterly  Biannual Annual
Check motion range  Each joint          √ 
Move the cables back and forth 
lightly to check whether the cables 
are disconnected. 
External cables   
(including cable unit of the 
Manipulator) 
    √  √ 
Push each arm in MOTOR ON 
status to check whether backlash 
exists. 
Each arm          √ 
Check whether unusual sound or 
vibration occurs. 
Whole  √  √  √  √  √ 
Measure the accuracy repeatedly by 
a gauge. 
Whole    √ 










