Plastic extrusion serves as a foundational technology in contemporary manufacturing, allowing enterprises to fabricate an extensive spectrum of components\u2014from cylindrical pipe sections to thin films and complex geometries\u2014within a continuous and controlled operation. Accomplished by a variety of extruders, including single-screw, twin-screw, and ram configurations, the method converts plastic pellets or powders into uniform cross-sectional profiles in a single, uninterrupted step. Nevertheless, the anticipated throughput, precision, and reproducibility of the extrusion line are inextricably linked to a disciplined regimen of preventative and predictive maintenance. Systematic inspections, timely component refurbishments, and the deployment of condition-monitoring sensors form an integrated framework to curtail unplanned stoppages, constrain the total cost of ownership, and uphold the specified performance metrics of the output. The present review synthesizes established and emerging protocols for the upkeep of extrusion hardware, furnishing practitioners with operational checklists, diagnostic guidelines, and metrics for quality verification.<\/p>\n