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JANUARY 2016 • E&MJ; 31 www.e-mj.com M A I N T E N A N C E may have only a vague idea of how the preventive maintenance program actu- ally works or what the planner is sup- posed to do. An explanation, along with a review of the program's preliminary schematic diagram, will help to elimi- nate any misunderstanding. But more importantly, Operations personnel will recognize the actions that they must take in order for the maintenance pro- gram to serve them effectively. They will also become aware that the objec- tives and policies of the production strategy are incorporated into the pro- gram. Staff personnel, especially from Warehousing and Purchasing, will now realize the importance of attending and participating in the weekly operations and maintenance scheduling meetings. Accounting will better appreciate the critical maintenance need for quality information. The process of defining the program yields better understanding of program procedures, gains commitment and edu- cates personnel on program execution, support and cooperation. The essential interaction of mine departments is con- firmed as mutual activities are carried out. Warehousing and Purchasing, for example, will specify procedures to obtain materials while Maintenance will include these procedures in their own programs to ensure they are understood and followed. Getting Started Program definition begins with the mine manager, who will provide guidance en- abling development of a solid produc- tion strategy that meshes with mining operation needs and meets corporate requirements. Departmental objectives and policies will be assigned so that departments can develop the interlock- ing procedures that make the mine's maintenance program work efficiently. Define the program and educate the workforce—Program definition is a com- posite action of all departments. As they work together, maintenance crews, equipment operators, supervisors and staff personnel such as planners, ware- house personnel or purchasing agents should confer as the procedures for each department are being developed. This collaboration assures the practicality and workability of the final program. Key maintenance personnel should be Figure 2—A more comprehensive legend is required to explain how preventive maintenance would be carried out: (1) Preventive maintenance services due are shown in the information system. (2) Services due on equipment are either static (require shutdown) or dynamic services (done while running). (3) Static PM services are integrated into the weekly schedule and operations advised at the upcoming operations/maintenance scheduling meeting. (4) Dynamic PM services are to be done at the discretion of the maintenance supervisor. (5) The Maintenance supervi- sor assigns PM services to his crew members. (6) Services are performed by Maintenance crew members. (7) Crew members confer with operators to learn about actual equipment condition. (8) Operators assist according their instructions. (9) Operations supervisors are advised of deficiencies found and their seriousness by the crew mem- ber. (10) Deficiencies are reviewed by the Maintenance supervisor and the crew member then converted into work as follows: (11) Emergency repairs–supervisor assigns at first opportunity. (12) Work to be planned–supervisor for- wards to planner. (13) Unscheduled repairs–crew member enters in work order system for subsequent assignment. Figure 3—Multidepartment component rebuilding would be explained as follows: Maintenance supervisor (1) assigns the work order to remove the damaged component. (2) Craftsman removes, tags and moves component to warehouse classification area. (3) Component is classified and maintenance notified. (4) Warehouse determines whether the component can be rebuilt. If so (5) it is sent to mine shops or vendor's shops for rebuilding. If sent to mine shops (6) a work order is provided by warehouse. If vendor rebuilds a purchase order (7) is provided by pur- chasing. Once rebuilt (8) accounting (9) receives the work order labor and material charges or the vendor's invoice. Rebuilt component(s) are returned to stock (10) for reissue to maintenance.