Question

Q1- When you have a several equipment in your factory and you plan to use a strategy that requires maintenance tasks to be performed at set time intervals while the asset is operational. regardless of whether signs of deterioration are prevalent or not. what kind of maintenance activities you plan to use in this case and why Q2- Discuss the following chart and where the optimal amount of preventive maintenance occurs?

Answer 1

Solution Maintenance activities to be performed at set time intervals while the asset is operational Periodic maintenance also known as time based maintenance is a strategy that requires maintenance tasks to be performed at set time intervals while the asset is operational. Periodic maintenance activities include- Selecting an asset Performing Periodic maintenance 1 Yes Is asset due for maintenance No 7 Analyzing historical maintenance data 1 Determining best time interval to perform maintenance Running aseet under normal Operating conditions The purpose of periodic maintenance or time based maintenance is to maintain smooth operation of a machine or other assit.

Q2 of C- Chart The e-chart is the control chart used to monitor count type data typically tatal number non conformities per unit. It u also occasionally weed to monitor the total number of events occurring in a given unit of time. The following chart is a c- chart with machine number along with number of maintenance defects, The optimum amount of preventive maintenance occurs at the time where vulnerability to failure increases with time and preventive replacement cost is significantly less than its replacement cost 0 corrective

Q3 machine No. No. of maintenance Defects dan Jhorooo Jom Joo onora of 1 cbar 1 Ec(i) ci > No. maintenance defecte cbar (4+0+3+2+4+8+6 +5+2+1) 10 Cbar = 3.5 2 UCL = ebart 3 Jcbar LCL = cbar- 3 Jcbar UCL = 3.5+ 33.5 = 3.5+ 3x1.87 LCL 3.5 - 3x1.87 = -2.11 9:11 . 8 Defects 4 0 2 10 4 6 co Machine No.

Q4 and systems Needs for maintenance To keep equipment running efficiently duung at least usual life cycle. For successful operation of a maintenance manage · To keep the performance - optimized ment system. Q5 Difference between Prescriptive and Predictive maintenance Prescriptive maintenance – It takes analysis a natch highere by not only predicting failure events but also rece commending actione to take Predictive maintenance - It employs the use of sensors to precizely collect data duoribing an assets condition and overall operational state Discussion on @ Maintenance policy set of administrative, technical and managerial actions to apply during the life cycle of a machine used to guide It is a

maintenance management decision making towards retaining certain operation conditione of a machine or dedicated to resto machine to certain conditions. 2 material control estoring the Q7 It ù a systematic control over purchasing, storing and consumption of materiale so as to maintain a regular and timely supply of materials at the same time, avoiding over stocking Steps in producing good quality maintenance work 0 verify the existing situation Investigate the processes where defects * Investigate and analyze 4-MC materials, machinery methods and checks) conditions. Plan action to correct deficiencies Analyze situations where quality (2 occur. conditions are unclear. 6 Eliminate flaws in 4-m conditions.

Q8 It is ensure Maintenance Q Quality Assurance the activities designed to that quality is built into the process. It includes activities to reach desirable quality goals. Need for reliability and safety It is needed for 100 percent effective un preventing maintenance and committing errors thus making the equipment reliable and safe. Q9 How failure analysis based on dependable data enables maintenance planners to make more informed decisions Failure analysis helps in consistent and continual Enabling companies to create new business opportunities Generating Poredicting future trende Optimizing current operational el efforts Producing actionable insights. growth more revenue.