4.2. Inspection Items and Period

4.2. Inspection Items and Period

 

Table 4‑2 Inspection Items and Period

No	Inspection Intervals				Inspection Items	Inspection method	Standards	Remark
	Daily	3M	6 M	1 Y
Robot Manipulator and Axes common
1	○				Cleaning	Examine dirt and dust with naked eyes
2		○			Inspection wiring	Examine any cable damages Examine cable fixing bracket tightening bolts paint marking with naked eyes Examine any cable cover damages with naked eyes
3		○			Main bolts	Examine paint marking with naked eyes
4				○	Limit Switch/ Dog	Check the ON-OFF function of limit switch	Check if the emergency stop lamp is on when the limit switch is ON.
5	○				Motor	Check the abnormal heating Check the abnormal sound
6				○	Brake	Check the ON/OFF operation of brake release switch Note) Turn the switch off in a second because the ARM of working axis may be dropped when the brake release switch is on	When the brake release switch is OFF, ARM of End Effect will not be dropped.
Axis S, H, V
7	○				Reduction gear	Check the abnormal sound Check the shaking(vibrating)
8	○				Gas spring load	Check the load surface damage
9			○	○	Gas spring Presure	Check pressure	See ‘9. Gas spring Maintenance’
10	○				Gas spring Bearing	Check Oily grease spilled out, Overheating of bearing part and foreign object, and excessive Eccentricity in BS JOINT	Maintain proper grease on bearing
Axis R2, B, R1
11		○			Reduction gear	Check the abnormal sound Check the vibrating
12		○			End Effect tightening bolts	Examine paint marking with naked eyes
13		○			Diversion	there is any diversion by rotating each axis to the right and reverse direction	should not feel diversion by touch
14			○	○	Timing Belt	Check the presence of play by rotating the B / R1 axis in the forward / reverse direction	See ‘5.4 Replacing the timing belt’

 

n  If the robot is utilized in adverse condition(such as spot welding, grinding, etc.), perform the inspection more frequently to ensure proper reliability of the robot system

n  Inspect all visible cabling, and replace them if damaged.

n  Check the mechanical bumper devices for deformation and damage. If the bumper or Dog is bent, replace it immediately.

n  Check the tightening torque of main bolts as shown in [Figure 4.1].

n  Check the abnormal noise in an automatic or teaching mode in order to ensure the condition of power transmission(such as motor, reduction gear, etc).

 

n Inspect the gas springs regularly to keep the pressure at a proper level and inject gas when the pressure is lowered.

 

n Replace some parts of the gas springs after a certain period of use.