State the procedure for developing preventive maintenance schedule.

State the procedure for developing preventive maintenance schedule. 
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1 Answer

Answer :

Procedure of PM is as below:- 

Step 1:- Inspection: What to inspect and how to inspect? Maintenance engineer / team should inspect the plan under working condition. Prepare the check list for what to inspect and how to inspect, it should be cross checked so that no inspection point will be missed out 


Step 2:- Frequencies: How often to inspect? Frequency of inspection depends on 1. Age, condition and importance of machine/equipment 2. Working hours of machine/equipment 3. If the cost of PM is greater than saving then reduce the frequency of inspection. 4. Equipment / machine and its importance; important machine should be checked daily. 


Step 3:- Time for maintenance: When to do? Preventive maintenance operations are planned by maintenance department and communicated to production department. Generally PM is during lunch hours or when there is no load on machine. Ensure that PM consumes least productive time Do the PM on the day reserved for maintenance purpose  Plan major repairs during holidays 


Step 4:- Maintenance schedule: Maintenance schedule is divided into three parts a) Routine Maintenance b) Periodically Maintenance (Weekly, fortnightly, monthly, quarterly or half yearly) Or according to service manual provided by manufacturer. c) Maintenance on fault as and when fault occurs 


Step 5:- Records: What to record and how to record? Each equipment / machine is maintained in separate log sheet on which maintenance history is recorded. Reason and analysis of fault is also recorded. 


Step 6:- Store Inventory:- Check the availability of spares & raw material required for maintenance before starting the work 


Step 7:- Availability of T&P:- Check the availability of tools, trackless, jacks, fixture required for maintenance before starting the work 


Step 8:- Availability of man power:- Check the availability of trained & skilled technician to do maintenance before starting the work.

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