The Fanuc Robot Series R-30iB controller consists of several key components that require regular maintenance to ensure optimal performance. These components include:

| Interval | Task | Critical Checks | |----------|------|----------------| | | Air filter cleaning | Foam filter at bottom front; wash, dry, re-oil with FANUC P/N A97L-0001-0120 or equivalent. | | 2000 Hrs / 6 Months | Fan check & terminal torque | All cooling fans (PSU, CPU, servo amp). Use thermal camera; replace if RPM <70% of rated. | | 4000 Hrs / Yearly | Battery replacement (abs encoder memory) | RM memory backup battery (lithium BR-2/3A) behind front panel. Replace while controller ON to prevent zeroing loss. | | 8000 Hrs / 2 Years | Capacitor reforming | If controller stored unpowered >2 years: apply 70% of nominal voltage for 30 mins using variac — else rapid failure. | | 16000 Hrs / 4 Years | Electrolytic cap replacement | Main DC bus capacitors in PSU. Required for high-vibration environments. |

Unlike the base batteries, the controller power should be turned