Essay On Maintenance Scheduling

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This module addresses the following learning outcomes:
• The difference between production and PPM scheduling
• Preparation for breakdown maintenance to avoid unnecessary delays in the production process

6.2 Basic Principles: Maintenance Scheduling
Maintenance scheduling is a compressive or detained list of all maintenance action and their methods and time of their execution. In other words, it may be defined as a document or detailed report. A scheduled program thus prepared should be followed strictly. The schedule should be in detail specifying the points requiring daily, weekly, monthly and yearly attention. Practical maintenance schedule can be developed by the following principles:

6.2.1 A schedule should be done in two ways
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• Improved utilization of the maintenance workforce by reducing delays and interruptions
• Improved quality of maintenance work by adopting the best methods and procedures and assigning the most qualified workers for the job

6.3.2 Planning and Scheduling Objectives
• Minimizing the idle time of maintenance workers.
• Maximizing the efficient use of work time, material, and equipment.
• Maintaining the operating equipment at a responsive level to the need of production in terms of delivery schedule and quality.

6.3.3 Classification of Maintenance Work
Classification of Maintenance Work according to Planning and Scheduling Purposes
• Routine maintenance: are maintenance operations of a periodic nature. They are planned and scheduled and in advance. They are covered by blanket orders.
• Emergency or breakdown maintenance: interrupt maintenance schedules in order to be performed. They are planned and scheduled as they happened.
• Design modifications: are planned and scheduled and they depend on eliminating the cause of repeated breakdowns.
• Scheduled overhaul and shutdowns of the plant: planned and scheduled in
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• Assign workers with appropriate skills.
• Review safety procedures.
• Set priorities for all maintenance work.
• Assign cost accounts.
• Complete the work order.
• Predict the maintenance load using effective forecasting technique.

6.3.6 Basic Levels of Planning Process
1. Long-range planning • It covers a period of 3 to 5 years and sets plans for future activities and long-range improvement.
2. Medium-range planning • It covers a period of 1 month to 1 year and needs to utilize the following:
• Sound forecasting techniques to estimate the maintenance load.
• Reliable job standards times to estimate staffing requirements.
• Aggregate planning tools such as linear programming to determine resource requirements.
• Specify how the maintenance workers will operate.
• Provide details of major overhauls, construction jobs, preventive maintenance plans, and plant shutdowns.
• Balances the need for staffing over the period covered.
• Estimates required spare parts and material acquisition
3. Short-range planning • It covers a period of 1 day to 1 week. It focuses on the determination of all the elements required to perform maintenance tasks in
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