Chapter 8

• Maintenance


  The work of keeping something in proper condition; upkeep
• Maintenance Actions taken to prevent a device or component from failing or to repair normal equipment degradation experienced with the operation of the device to keep it in proper working orderl
• Breakdown (Reactive) Maintenance


  The "run it till it breaks" maintenance mode with no actions taken to maintain the equipment as the designer originally intended
• Preventive Maintenance


  Actions performed on a time or machine-run-based schedule to detect, preclude or mitigate degradation of a component or system with the aim of sustaining or extending its useful life
• Predictive Maintenance


  Measurements that detect the onset of a degradation mechanism, allowing causal stressors to be eliminated or controlled prior to significant deterioration
• Maintenance Schedule


  Scheduling is the function of coordinating all of the logistical issues around the execution phase of the work
• Total Productive Maintenance (TPM)


  A maintenance program that aims to markedly increase production while increasing employee morale and job satisfaction
• Equipment are an important resource wich is constantly used for adding value to products
• Knowledge Base

  It includes about equipment, job, available techniques, materials, and facilities
• Job investigation at site

  gives a clear perception of the total jobs
• Scheduler

  should also have knowledge about job, techniques, facilities, analytical ability and judgemental courage
• Identify and document the work

  knowing the earlier two steps and knowing the needs of preventive, predictive, and other maintenance jobs.
• Development of repair plan

  preparation of step by step procedure wich would accomplish the work with the most economical use of time, manpower and time
• Preparation tools and facilities list

  indicating the needs of special tools, tackles and facilities needed
• Estimation of time required to do the job

  work arrangement technique and critical path analysis
• Maintenance Schedule Techniques

  Different types of schedule are made suiting the respective job plans and different techniques are used for making and following those schedules.