Regular maintenance is vital for Zhongrui press brakes to sustain precision and reliability. Daily: inspect tooling for chips or wear, clean the machine bed, and check hydraulic oil levels (hydraulic models). Weekly: lubricate guide rails and ball screws, test safety features (emergency stops, light curtains), and verify backgauge accuracy with a precision ruler. Monthly: calibrate the angle measurement system, check electrical connections for tightness, and replace air filters. Quarterly: hydraulic models need oil sampling for contamination, while electric models require servo motor inspection. Annually: schedule professional service to replace wear parts (guides, seals), calibrate the CNC system, and perform a full functionality test. Following Zhongrui's maintenance schedule (documented in the user manual) extends machine life by 30% and maintains bending accuracy within ±0.02mm.