Equipment downtime is decreased and the numbers of major repairs are reduced due to _____ maintenance.

Explanation:

Maintenance of machinery means its upkeep and repair in the event of the breakdown. It also includes the renewal and replacement of damaged parts.

Preventive maintenance

• Preventive maintenance consists of a few engineering activities which help to maintain the machine tools in good working order.
• The basic activities of preventive maintenance are the:
  • Periodic inspection of machines and equipment to uncover conditions leading to production breakdowns or harmful depreciation
  • Upkeep of machines and equipment to avoid such conditions or to adjust, repair or replace them while they are still in the initial stages.
• Advantages of the preventive maintenance system
  • Less downtime in production.
  • Improves the quantity and quality of the product.
  • Standby equipment is not needed which saves capital investment.
  • The lower unit cost of manufacture.
  • Reduces major and repetitive repairs of machines.
  • P.M. helps in prolonging the life of the machines and reduction in unexpected breakdowns.

Predictive maintenance 

• It is first to predict when equipment failure might occur, and secondly, to prevent the occurrence of the failure by performing maintenance.
• Monitoring for future failure allows maintenance to be planned before the failure occurs.