(1) A few months before
1) Information about The dry docking (estimated time and duration) to be
taken from C/E
2) Preliminary repair list must be collected and arranged by instruction
of C/E.
3) Repair work to be divided into two categories; one for dockyard and other for the ship’s staff. The repair list must contain the followings
a. Nos. of sea suction chests and grids and their size
b. Nos. of sea suction valve and their sizes.
c. Nos. of ship side discharge valve and their size.
d. Nos. of scupper valve and their sizes.
e. Nos. of piping to be repaired including their length, inside/out side diameter, bends, no. of flange and their P.C.D[including detail drawing]
f. No. of engine room valves to be renewed or repaired and their specifications.
g. Main engine overhauling preparation (1) Spare (2) tools (3) measurement(4)instruction manuals.
h. Auxiliary engine, boiler, pump & other machinery preparation for overhauling.
4) Exact location of items to be repaired or overhaul must be marked with tag label according to repair code.
5) Tools and spares, stores should be checked and prepared for use.
6) Store and spare requisition which will be repaired to use during docking periods must be ordered.
7) All tools must be marked with paints to prevent mixing with shipyard’s one.
8) Organization of E/R staff ie. Safety purpose, assign works.
9) Distribute work assignments among engine room staff in group by group.
10) Maker’s instruction on manuals and all drawing must be kept ready for prompt work.
(2) A few days before
1) Ballasting and transferring carried out in corporation with chief officer to achieve required trim and draught.
2) Engine room bilge well and tank top to be cleaned thoroughly.
3) All tank sounding to be taken and account.
4) All portable fire extinguishers to be ready at required place.
5) Fire fighting fixed installation to be kept ready at required by shipyard’s rule.
6) Emergency generator, emergency fire pump, emergency air bottle,
emergency air compressor must be kept in good condition.
7) Shore cooling sea water supply for refrigeration and air condition plant must be ready to receive.
8) Shore electrical supply (at entry of dock) Phase, Hz, V, AC or DC.
9) Main engine crank shaft deflection to be taken and recorded.
(3) Before a few hour
1) Boiler should be shut down and release all steam pressure by using easing gear.
2) An instruction to give all engine room personnel that smoking is prohibited in engine room at ship is still in dock.
3) Main air bottle, emergency air bottle pressed up to full and close tightly.
4) Ready to stop ship generator as soon as vessel enter dry dock and to be
kept an electrical officer stand by on shore connection box when shore power is taken.
5) Settling and service tank top up, after topping up sounding of all tanks must be taken and recorded.
6) Remind all engine room personnel their duty and ready for emergency use.
(4) On dock
1) Repair work to be divided into two categories, one for ship staff and other for dry dock.
2) Tool and spare must be checked and prepared for use.
3) Take daily record of work done by ship staff and dry dock workers.
4) Negotiate with in charge of dock yard about work sequence and show him
location of item to be repaired.
5) At the end of every day, feed back condition of work to C/E.
6) Examine all work done by dry dock and engine crew. If unsatisfactory condition was found, inform to C/E and dock yard in charge.
7) All engine room personal should be instructed to use store and spare thoroughly and without wasting.
8) Bottom survey carried out together with class surveyor, master & C/O.
9) Assist class surveyor visit and his subsequent survey.
> Supervise when at sea cannot overhaul works.
> At witness for docking survey item.
> Supervise the docking repair item.
> Measure stern tube wear down, rudder wear down and jumping clearance.
> Propeller check cavitation, corrosion and any damage (Crack,deformation)
(5)After Dry Docking
1.Price Negotiate (Man/power, material /repair list)
2.Dock charge damage claim
3.Report
4.Closely check sea valves
5.Performance of repaired machinery
6.Took M/E crankshaft deflection.