better training of personnel who must keep the shipscombat ready. The need for training and the problem offrequent turnover of trained personnel call for some kindof system that can be used to keep things going smoothlyduring the confusion. The EOSS was developed for thatpurpose.EOSS is a set of manuals designed to eliminateproblems due to operator error during the alignment ofpiping systems and the starting and stopping ofmachinery. It involves the participation of all personnelfrom the department head to the fireman on watch.EOSS consists of a set of detailed written procedures,using charts, instructions, and diagrams. These aids aredeveloped for safe operation and casualty control of aspecific ship’s engineering plant and configuration.EOSS improves the operational readiness of the ship’sengineering plant by providing positive control of theplant. This, in turn, reduces operational casualties andextends machinery life.EOSS is divided into two subsystems: (1)engineering operational procedures (EOPs) and (2)engineering operational casualty control (EOCC).ENGINEERING OPERATIONALPROCEDURES (EOPs)EOPs are prepared specifically for each level ofoperation: plant supervision (level l), space supervision(level 2), and component/system operator (level 3). Thematerials for each level or stage of operation containonly the information necessary at that level. Allmaterials are interrelated. They must be used together tomaintain the proper relationship and to ensure positivecontrol and sequencing of operational events within theplant. Ships that do not have EOSS use operatinginstructions and a casualty control manual for plantoperations.ENGINEERING OPERATIONALCASUALTY CONTROL (EOCC)This subsystem of EOSS enables plant and spacesupervisors to RECOGNIZE the symptoms of a possiblecasualty. They can then CONTROL the casualty toprevent possible damage to machinery, and RESTOREplant operation to normal. The documents of the EOCCsubsystem contain procedures and information thatdescribe symptoms, causes, and actions to be taken inthe most common engineering plant casualties.ENGINEERING CASUALTY CONTROLThe best form of casualty control is prevention. Ifyou do not let a casualty happen, you will not have tofix it.Preventive maintenance is one of the principalfactors of casualty control. Preventive inspections, tests,and maintenance are vital to casualty control. Theseactions minimize casualties caused by MATERIALfailures. Continuous detailed inspections are necessaryto discover worn or partly damaged parts, which mayfail at a critical time. These inspections eliminatemaladjustments, improper lubrication, corrosion,erosion, and other enemies that could cause early failureof a vital piece of machinery.The inspections, tests, and maintenance called forin the 3-M systems must be performed conscientiouslysince they are based on the known requirements ofpreventive maintenance.Still, casualties do happen. When they do, thesuccess of the mission, the safety of your ship, and thelives of your shipmates may depend on your ability tohandle the situation. That means continuous training andfrequent refresher drills to be sure you can do your part,and do it well.Engineering casualty control is used to prevent,minimize, and correct the effects of operational andbattle casualties. These casualties will be on engineeringspace machinery, related machinery outside ofengineering spaces, and the piping installationsassociated with the various pieces of machinery. Themission of engineering department personnel is tomaintain all engineering services in a state of maximumreliability under all conditions. If you cannot providethese services, the ship may not be able to fight.The use of EOCC procedures was discussed at thebeginning of this chapter. These procedures are preparedand approved for your ship.Steps involved in handling engineering casualtiescan be divided into three general phases:1. Immediate action to prevent further damage.2. Supplementary action to stabilize the plantcondition.3. Restoration action to restore equipment tooperation after a casualty. Where equipment damage hasoccurred, repairs may be necessary to restoremachinery, plants, or systems to their original condition.Communication of accurate information is one ofthe major problems in casualty control. Be sure you1-23
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