Weekly
Record screw-barrel operating noise and current values.
Check correlation between zone temperatures and product dimensions.
Inspect vacuum tank water levels and clean filters.
Monthly
Check gearbox oil level and take a sample analysis.
Inspect haul-off pads/conveyor belts and pressure adjustment.
Sharpen or replace cutting blades; check dust extraction.
Quarterly (Every 3 Months)
Perform resistance test on heaters and cooling elements.
Calibrate sensors; back up HMI/PLC software.
Measure energy consumption (kWh/kg); perform root cause analysis if deviations occur.
Yearly
Measure screw-barrel wear, re-sleeve if necessary.
Inspect all safety equipment (emergency stops, guards).
Conduct operator refresher training.
📊 KPIs to Track:
OEE (Overall Equipment Effectiveness)
MTBF (Mean Time Between Failures)
MTTR (Mean Time to Repair)
Energy Intensity (kWh/kg)
