YASKAWA MA1440 - Page 54

Maintenance and inspection 9 - 54
Inspection intervals
Item number
1
Schedule (h) Method Operation To be per-
formed by:
Daily
1000 6000
12000 24000 36000
12 3
1 Alignment marks  Visual inspection Check alignment mark correspondence and
damage at the zero position.

2 External cables  Visual inspection Check cables for damage. 
3 Working area and robot  Visual inspection If the working area is dirty, it must be cleaned.
Check the robot for damage and external cracks.

4 Motor for S-, L-, U-axes  Visual inspection Check for grease leakage. 
5 Fixing screws of the base
plate
 Using a correspond-
ing tool,
tighten loose screws (replace if necessary). 
6 Fixing screws of the cover  Using a correspond-
ing tool,
tighten loose screws (replace if necessary). 
7 Power input module  Manually Check for loose connections. 
8 Toothed belt for B- and T-axes  Manually Check for tension and wear 
9 Wiring harness in the robot
(wires of the S-, L-, U-, R-, B-
and T-axis)
 Visual inspection
with multimeter
Check the bushing between the connector on
the stand and the intermediate connectors by
manually moving the wires. Check the protective
coil.
2
.

 Exchange
3

10 Wiring harness in the robot
(wires of the B- and T-axis)
 Visual inspection
with multimeter
Check the wires between the terminals for wear. 
 Exchange 