The Preventive Maintenance Checklist Every Packaging Line Needs

Most unplanned packaging line stoppages trace back to five recurring causes: contaminated air, worn change parts, drifting sensors, lubrication gaps and loose electrical terminations. A disciplined checklist addresses all five.

Daily: drain air filter bowls, verify emergency stops, inspect nozzles and seals for residue, confirm reject station function and record fill weight checks at start of each shift.

Weekly: clean photo-eyes and reflectors, check conveyor belt tracking and tension, inspect gearbox oil levels, verify torque head calibration on cappers and review alarm history for repeat events.

Quarterly: replace wear seals, recalibrate load cells and torque heads against traceable standards, thermographically scan control panels, tighten terminations and validate safety circuit response times.

Record everything in one log. The value of preventive maintenance comes less from the individual tasks than from the trend data — a torque reading that drifts 4% each quarter tells you far more than any single measurement.