TABLE OF CONTENTS The various types of preventive maintenance are listed in Figure 5-1. A good PM program will incorporate all of these types, with the emphasis varying from industry to industry and from facility to facility. This list also provides a progressive methodology for implementing a progressive preventive maintenance program.
Basics
Cleaning, Inspecting, Lubrication, Fastening
Proactive Repairs or Replacements
Shutdowns, Outages, or Overhauls
Predictive Maintenance
Vibration, Oil Analysis, Thermography, Sonics
Condition Monitoring
Reliability Centered Maintenance
Basic preventive maintenance including lubrication, cleaning, and inspections is the first step in beginning a preventive maintenance program. These service steps take care of small problems before they cause equipment outages. The inspections may reveal deterioration, which can be repaired through the normal planned and scheduled work order system. One problem develops in companies that have this type of program: they stop here, thinking this constitutes a preventive maintenance program. However, it is only a start; a company can do more.
Proactive replacements substitute new components for deteriorating or defective components before they can fail. This repair schedule eliminates the high costs related to a breakdown. These components are usually found during the inspection or routine service. One caution: Replacement should be only for components in danger of failure. Excessive replacement of components thought but not known to be defective can inflate the cost of the preventive maintenance program. Only components identified as defective or "soon to fail" should be changed.
Scheduled...
