Wednesday, 17 June 2020

DRY DOCKING

  DRY DOCKING

FEW MONTHS BEFORE

  • ESTIMATED TIME AND DURATION,
  • PRELIMINARY REPAIR LIST COLLECTED AND ARRANGED.
  • REPAIR WORK DIVIDED INTO TWO CATEGORIES  
                            *FOR DOCKYARD, *FOR SHIP STAFF

  • REPAIR LIST MUST CONTAIN :
  1. NUMBER OF SEA SUCTION CHESTS AND GRIDS AND SIZES.
  2. NUMBER OF SEA SUCTION VALVE AND THEIR SIZES.
  3. NUMBER OF SHIP SIDE DISCHARGE VALVE AND THEIR SIZES.
  4. NUMBER OF SCUPPER VALVES AND THEIR SIZES.
  5. NUMBER OF PIPING TO BE REPAIRED INCLUDING THEIR LENGTH INSIDE/OUTSIDE DIAMETER, BENDS,NUMBER OF FLANGES AND THEIR PCD INCLUDING DETAIL DRAWINGS
  6. NUMBER OF ENGINE ROOM VALVES TO BE RENEWED /REPAIRED AND THEIR SPECIFICATION.
  7. MAIN ENGINE OVERHAULING PREPARATION - SPARES, TOOLS, MEASUREMENT,INSTRUCTION MANUALS.AUX. ENGINE ,BOILERS,PUMPS AND OTHER MACHINERY PREPARATION FOR OVERHAULING
  • EXACT LOCATION OF ITEM TO BE REPAIRED/OVERHAULED MUST BE MARKED WITH TAG LABEL ACCORDING TO REPAIR CODE.
  • TOOLS, SPARES AND STORES SHOULD BE CHECKED.
  • STORES AND SPARES REQUISITION MUST BE ORDERED.
  • TOOLS MARKED TO PREVENT MIXING WITH SHIPYARD TOOLS.
  • ORGANISATION OF ENGINE ROOM STAFF ASSIGN WORK , SAFETY.
  • MAKERS INSTRUCTION MANUAL MUST BE KEPT READY FOR PROMPT WORK.

FEW DAYS BEFORE DRY DOCK

  • BALLASTING AND TRANSFERRING CARRIED OUT IN CO-OPERATION WITH CHIEF OFFICER TO ACHIEVE REQUIRED TRIM AND DRAUGHT.
  • ENGINE ROOM BILGE WELL AND TANK TOP TO BE CLEANED.
  • ALL TANK SOUNDING TO BE TAKEN AND RECORDED.
  • ALL PORTABLE FIRE EXTINGUISHER TO BE READY AT REQUIRED PLACE
  • FIXED FIRE FIGHTING INSTALLATION TO BE KEPT READY AS PER SHIP YARD RULES.

  • SHORE COOLING SEA WATER SUPPLY FOR REFRIGERATION AND AIR CONDITIONING PLANT MUST BE READY TO RECEIVE.
  • SHORE SUPPLY CONNECTION BOX MUST BE CHECKED.
  • MAIN ENGINE CRANK SHAFT DEFLECTION MUST BE TAKEN AND RECORDED

FEW HOURS BEFORE DRY DOCK

  • BOILER SHOULD BE SHUT DOWN AND STEAM PRESSURE RELEASED BY EASING GEAR.
  • MAIN AIR BOTTLE AND EMERGENCY AIR BOTTLE PRESSED UPTO FULL AND CLOSED TIGHTLY
  • SETTLING AND SERVICE TANK TOP UP.
  • READY TO STOP GENERATOR AND CONNECT SHORE SUPPLY.
  • ALL CREW INFORMED ABOUT THEIR DUTIES AND PRECAUTION TO BE TAKEN AND EMERGENCY PROCEDURE.

ON DOCK

  • TAKE DAILY RECORD OF WORK DONE BY SHIP STAFF AND DRY DOCK WORKER
  • DAILY REPORT GIVEN TO CHIEF ENGINEER.
  • EXAMINE WORK GOING ON IN ENGINE ROOM.
  • SURVEY BEING CARRIED OUT.

AFTER DRY DOCK

  • DOCK CHARGE DAMAGE CLAIM
  • REPORTS ON VARIOUS MAINTENANCE.
  • PERFORMANCE OF REQUIRED MACHINERY,
  • TAKE MAIN ENGINE CRANK SHAFT DEFLECTION.

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