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This Concept Map, created with IHMC CmapTools, has information related to: To Secure for Dry Dock (Part2), it to rotate on the turning gear while cooling Trip the in-use boiler, allowing the main feed pump to run and use up the steam while maintaining the boiler level, gland exhaust fan With the boiler shut down, there should be no more drains returning to the atmospheric drains tank., PART 2 Allow the shut down boiler pressure to fall away, opening the drum vent when the pressure is approx. 200kPa., the HFO will be replaced by the diesel oil. This will be required in the preparation for the flash-up cycle when no heat will be avaliable for the HFO., there should be no more drains returning to the atmospheric drains tank. Shut deaerator outlet valve to the main feed pump suction, diesel generator to take the entire swithboard load & take the in-use turbine generator off load. Trip the in-use boiler, allowing the main feed pump to run and use up the steam while maintaining the boiler level, all the boiler controls to manual Crack open main condenser vacuum breaking valve, all the boiler controls to manual Close all valves, allowing the main feed pump to run and use up the steam while maintaining the boiler level Close all superheater and desuperheater valves and open the superheater vent valve., allowing the main feed pump to run and use up the steam while maintaining the boiler level Stop in-use main feed pump and close and valves, opening the drum vent when the pressure is approx. 200kPa. Shut off the steam supply to the in-use boiler fuel oil heater, in-use main condensate pump Close main condensate recirculating valve,, all the boiler controls to manual Stop in-use vacuum pump, the steam supply to the in-use boiler fuel oil heater When the fuel temperature falls to approx. 90°C, open the fuel supply to the boiler fuel pump from the diesel oil service tank and close all valves from the heavy fuel oil service tanks., there should be no more drains returning to the atmospheric drains tank. Shut in-use distilled tank outlet valve to the make-up line, in the preparation for the flash-up cycle when no heat will be avaliable for the HFO. Allow DO to flow through both fuel heaters, and through the recirculation rail at the burner manifolds on both boilers., Shut the gland steam make-up and spill valves to the main turbine. Stop gland exhaust fan, turbine generator, close all steam/exhaust and gland steam valves Trip the in-use boiler, allowing the main feed pump to run and use up the steam while maintaining the boiler level, the LPSG system Allow diesel generator to take the entire swithboard load & take the in-use turbine generator off load., flow through both fuel heaters, and through the recirculation rail at the burner manifolds on both boilers. Shut down the LPSG system