GMS 401 Lecture Notes - Lecture 9: Operations Management, Expert System, Critical Path Method
14 Dec 2017
School
Department
Course
Professor
Operations Management
Week 11 Notes
Maintenance and Project Management
Maintenance
•preventive maintenance - involves performing routine inspections and servicing and
keeping facilities in good repair
•intended to build a system that will find potential failures and make changes or
repairs that will prevent failure
•involves designing technical and human systems that will keep the production
process working within tolerance; understanding the process and keeping it working
without interruption
•breakdown maintenance - occurs when equipment fails and must be repaired on an
emergency or priority basis
•autonomous maintenance - maintenance in which employee empowerment puts an
emphasis on employees accepting responsibility for the “observe, check, adjust,
clean, and modify” type of equipment maintenance
•emphasizes total cost of ownership when purchasing machines, so that service and
maintenance are included in the cost
•developing preventive maintenance plans that utilize the best practices of operators,
maintenance departments and depot services; training for autonomous maintenance
so operators maintain their own machines and partner with maintenance personnel
•high utilization of facilities, tight scheduling, low inventory, and consistent quality
demand reliability; the key to reducing variability and improving reliability
Enhancing Maintenance
•simulation - evaluates the impact of various policies; stimulate the replacement of
parts that have not yet failed as a way of preventive maintenance; a physical model
can be used to simulate maintenance needs
•expert systems - assist staff in isolating and repairing various faults in machinery and
equipment
•automated sensors - warn when production machinery is about to fail or is becoming
damaged by heat, vibration, or fluid leaks; avoid failures and also perform preventive
maintenance before machines are damaged
Increasing Repair Capabilities
•well-trained personnel and adequate resources
•ability to establish a repair plan and priorities
•ability and authority to do material planning
•ability to identify the cause of breakdowns
•ability to design ways to extend mean time between failures (MTBF)
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