4.1.1 Check sheet

The intervals, methods, and criteria for checking the mechanical parts of the collaborative robot are as follows:

Division	From time to time	Three months	One year	Method	Criteria
Manipulator	O			Visual inspection of dust and impurities	Clean
Wiring		O		Visual inspection on damaged cables Visual inspection on loose cable ties	No damaged cables No loose cable ties
Bolts		O		Visual inspection on broken paint markings	No broken paint markings
Motors	O			Check on abnormal overheating Check on abnormal noise	No abnormal overheating No abnormal noise
Reducer	O			Check on abnormal overheating Check on abnormal noise Check on abnormal vibration	Temperature maintained as usual No abnormal noise Vibration maintained as usual
Brakes			O	Operation upon the brake release switch ON/OFF (Caution: When the brake release switch is turned ON, the arm or motion axis will fall. Therefore, make sure to turn OFF the brake release switch within one second.) Visual check on brake abrasion state Check on abnormal brake noise	Robot stopped at brake OFF Insignificant quantity of brake dust No abnormal brake noise
Clearances		O		Check on motion lag when each axis makes forward and reverse rotations	No motion lag felt by hand

• When the robot is used in severe conditions (e.g., excessive handling), carry out checks at intervals shorter than the specified intervals to ensure the performance of the robot system.

• Check all cables and replace any damaged cables.

• For checking on anomalies of power transmission devices (motors, reducers, etc.), check on abnormal noise in the automatic mode or the teaching mode.