Chapter 1 Planned Maintenance System and Fault Isolation

CHAPTER 1 PLANNED MAINTENANCE SYSTEM AND FAULT ISOLATION LEARNING OBJECTIVES Upon completing this chapter, you should be able to do the following: 1. Describe the purpose of maintenance systems. 2. Describe the methods used in identifying system faults. INTRODUCTION The increasing complexity of our equipments requires a viable maintenance program to ensure that the systems perform in a manner that will ensure max- imum operational readiness. To overcome this prob- lem, the Navy has developed an excellent preventive maintenance system—the Ships’ Maintenance and Material Management (3-M) System. This system provides a standard means for planning, scheduling, controlling, and performing planned maintenance on all equipment. It is not uncommon for a Fire Controlman Second Class to be in the position of a work-center super- visor. As such, you will need a broader knowledge of a variety of subjects to perform your duties in a pro- fessional manner. One area you cannot take lightly is maintenance. Your fire-control system is kept at its maximum level of readiness through maintenance. To help you in this area, this chapter briefly discusses the Planned Maintenance System (PMS) and fault-isola- tion procedures. The information provided in this chapter is not intended to cover all aspects of the 3-M System. For more in-depth information on this system, refer to the Ships’ Maintenance and Material Management (3-M) Manual, OPNAVINST 4790.4. PLANNED MAINTENANCE SYSTEM The Planned Maintenance System (PMS) provides a standard means for planning, scheduling, control- ling, and performing planned maintenance to complex mechanical, electrical, and electronic equipments. PMS maintenance actions are the minimum required to maintain equipment in a fully operable condition and within specifications. The PMS includes a Main- tenance Data System (MDS), which is used to record important scheduled and corrective maintenance information, and electronic data-processing capa- bilities, which are used to retrieve this information for maintenance analysis. The 3-M Manual establishes the PMS and assigns PMS management responsi- bilities. The PMS provides regularly scheduled tests to detect degraded performance and to aid in preventing failures during tactical operations. When failures do occur, the PMS provides formal corrective mainte- nance in step-by-step fault-isolation and repair proce- dures. Complete technical documentation (including 1-1