| Frequency |
CNC Machines |
Robot Arms |
| Daily (5–10 min) |
Power on and run no-load warm-up; check spindle/axis/lubrication status on controller; inspect way covers and telescopic shields; check/top up coolant; remove chips and wipe down panel; confirm air pressure (0.6–0.8 MPa). |
Visual check; cable inspection. |
| Weekly (~30 min) |
Top up way oil to MAX line and verify distribution to all axes; clean coolant tank surface and remove floating chips; inspect chip conveyor and cable carriers; verify E-stop buttons; lubricate manual points per spec sheet. |
Joint torque check; gripper inspection. |
| Monthly (1–2 hrs) |
Check spindle bearing temperature (≤60°C normal); replace way oil filter if pressure drop exceeds spec; clean coolant tank thoroughly and check pH (8–9); inspect ballscrew backlash; check spindle drawbar pressure; run accuracy test cuts; update controller backup files. |
Cable wear check; calibration verification. |
| Quarterly (2–4 hrs) |
Drain and replace way oil and coolant entirely; clean tank, pump, and lines; inspect spindle belt tension; check air filter on hydraulic pump; inspect axis motors and encoders; verify alarm logging system. |
Reducer grease top-up; full motion test. |
| Annually (1 day, with engineer) |
Comprehensive spindle bearing inspection (preload, runout); ballscrew preload check and replacement if needed; linear guide rail inspection and lubrication overhaul; full geometric accuracy verification (laser interferometer); controller firmware update; electrical cabinet inspection; replace worn-out items per inspection report. |
Reducer grease change; controller backup; full calibration. |
