IAI America IX-UNN3515 - Manual (Page 39)

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6. Inspection/Maintenance
Warning
Performing inspection or maintenance without fully understanding the details of work may result in
a serious accident.
If inspections are neglected, the drive part may wear prematurely or the robot may malfunction
unexpectedly.
Display a “Work in Progress” sign so that other operators will not operate the controller, operation
panel, etc.
Caution
Warning
6.1.3 Yearly Inspection
Check the following items on the robot every year.
Observe the precautions for work near the robot and for inspection/maintenance/adjustment operations when
carrying out each check.
Check location Description
Ball-screw spline Check the shaft for looseness. (Contact IAI if an abnormality is found.)
* Harmonic speed
reducer
Change the grease. (Contact IAI.)
* Change the grease every year if the robot is operated 24 hours a day or every three years or so if operated
eight hours a day.
Performing inspection or maintenance without fully understanding the details of work may result in
a serious accident.
If inspections are neglected, the drive part may wear prematurely or the robot may malfunction
unexpectedly.
Display a “Work in Progress” sign so that other operators will not operate the controller, operation
panel, etc.
6.2 How to Check/Adjust Belt Tension
6.2.1 Preparation
The following tools are required when checking/adjusting belt tension:
Push-pull gauge (maximum measurement capability of 2 kg)
Hex wrenches (2.5, 3 and 4 mm)
Spanners (5.5 mm)
Phillips screwdriver
Scale
Turn off the power to the controller. Do not cut off the 24 VDC power supply to the brake.