Tài liệu PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD doc

1.3 The engine and related parts have to be stored in clean and dry indoor space over 20 degree Celsius, below 50% of relative humidity from arrival at shipyard to installation.. 2.0 Arr

OF MAIN ENGINE

AT SHIPYARD

Edition 02

A-1 Preservation Procedure Of Main Engine At Shipyard (In Complete Engine case)

1.0 General

1.1 This manual provides technical advice for anti-corrosion in the period of engine storage at shipyard before the delivery of engine to the ship owner is completed The shipyard absolutely undertakes responsibility on the anticorrosion of engine

1.2 DOOSAN Engine applies anti-corrosion oil for engine parts as follow (reference 1) and long term protection is the standard if there is no request

1.3 The engine and related parts have to be stored in clean and dry indoor space (over 20 degree Celsius, below 50% of relative humidity) from arrival at shipyard to installation However, if the engine and related parts have to be stored outside inevitably, they must be protected against the external weather condition and alien substances by packing with waterproof cloth or partition

1.4 To remove the internal humidity of chamber, a dehumidifier (over 1.000CC/H) and an explosion-proof light creating enough heat (over 300W) shall be installed inside of chamber to remove humidity sufficiently The dehumidifier and explosion-proof light have to be operated continuously and temperature, humidity shall be recorded in the Log Sheet on a daily basis

2.0 Arrival checking

2.1 Upon the engine arrives at the shipyard, it has to be examined

the existence of corrosion on the whole parts of the engine under the responsibility and by expense of shipyard The specific arrival checking facts shall be performed by following

“3.0 routine check points”

2.2 If there is a serious corrosion on engine parts, please let the engine maker knows sending related report at the following contacts

- Doosan Engine Co, Ltd Site Operation Team

- Tel : +82-55-260-6802

- E-Mail : gunhyo.byen@doosan.com

2.3 If there is no request on corrosion within 7 days, after the arrival

of engine at shipyard, the engine and related parts will be considered that they are stored at shipyard in perfect condition without any corrosion

2.4 Even if the corrosion is not indicated on the engine parts,

periodical inspection and preventive work must be implemented

in accordance with the following number 4 clause

3.0 Inspection matters

3.1 Inspection of corrosion, preservation condition of engine and related parts has to be carried out on a regular basis paid by and under the responsibility of shipbuilder The result shall be managed and recorded in the sheet

3.2 The main inspection parts and inspection period is as follow Please note that the period should be reduced in case of the condition of weather is high temperature and humidity or store the engine outside

Main inspection parts

Period of inspection Daily Every Week Every Two

Week

3.3 Before the inspection, main inspection parts shall be washed by following procedure to facilitate the inspection process

- Remove anti-corrosion oil thoroughly with clean cloth after embrocate cleansing oil (petroleum based solvent or high temperature alkali cleansing liquid) To remove the hardened anti-corrosion oil from the surface and avoid damage on engine parts, please use plastic scrapers and remove the film of anti-corrosion oil

*Note: Please do not use steel scrapers It may create damage on

the surface of engine parts

3.4 Do inspection on the surface and verify the condition of corrosion

after remove the anti-corrosion oil

3.5 When the corrosion is indicated, please report the fact to the engine maker and manage the problem as following methods provided

from the engine maker

3.6 When the inspection of corrosion is completed, the corrosion preventive work shall be carried out under the responsibility of and paid by shipbuilder in accordance with the following number 4 clause

4.0 Turning of engine and corrosion preventive work

Carry out the following preparation work for engine turning and then rotate the engine three and one-third times(3 and 1/3)

*Note: Please feed lubricated protection oil and L.O to

embrocate the whole surface sufficiently preventing insert of alien substance through the wholes

4.1 Crankshaft

4.1.1 Feed TECTYL 930A or equivalent oil through the Main bearing

L.O Hole to supply on the Crankshaft Main Journal

4.1.2 Feed TECTYL 930A or equivalent oil through the Oil Inlet Hole

on the Crosshead to supply on the Crankpin Journal

4.1.3 Embrocate TECTYL 930A or equivalent oil on the rest of

manufactured surface

4.2 Crosshead & Guide Rail

4.2.1 Feed TECTYL 930A or equivalent oil on around the exposed

surface of assembled Crosshead Bearing Cap and Piston Rod

4.2.2 Embrocate TECTYL 930A or equivalent oil on the Guide Rail

to supply oil on the Guide Shoe

4.3 Piston & Con Rod

4.3.1 Embrocate TECTYL 930A or equivalent oil on the surface of

Piston and Con Rod through the Inspection door of Frame Box

4.4 Cam & Camshaft

4.4.1 Embrocate TECTYL 930A or equivalent oil on the surface of

Cam, Roller and Camshaft through the Inspection door of Roller Guide

4.5 Cylinder liner

4.5.1 Get into the scavenge port and embrocate TECTYL 930A or

equivalent oil on the inner wall of Liner and Piston Rod through the Cylinder Liner Air Port

4.6 Chain & Chain Wheel

4.6.1 Embrocate TECTYL 930A or equivalent oil on the surface of

Main Chain, Crankshaft Chain and Camshaft Chain through the Inspection door

4.7 The others

4.7.1 Embrocate TECTYL 930A or equivalent oil on the rest of slide

ways(습습습) and manufactured surface in the chamber without margin

4.7.2 Feed TECTYL 930A or equivalent oil through the Oil Inlet Hole

of Crosshead and carry out the engine turning process about 15 minutes later

A-2 Storage procedure manual for disassembled engine

1.0 General

1.1 This manual provides technical advice for anti-corrosion in the period of engine storage at shipyard before the delivery of engine to the ship owner is completed The shipyard absolutely undertakes responsibility on the anticorrosion of engine

1.2 DOOSAN Engine applies anti-corrosion oil for engine parts as follow (reference 1) and long term protection is the standard if there is no request

1.3 The engine and related parts have to be stored in clean and dry indoor space (over 20 degree Celsius, below 50% of relative humidity) from arrival at shipyard to installation However, if the engine and related parts have to be stored outside inevitably, they must be protected against the external weather condition and alien substance by packing with waterproof cloth or partition

1.4 To remove the internal humidity of chamber, a dehumidifier (over 1.000CC/H) and explosion-proof light creating enough heat (over 300W) to sufficiently remove humidity shall be installed inside of chamber The dehumidifier and explosion-proof light have to be operated continuously and temperature, humidity shall be recorded in the Log Sheet on a daily basis

2.0 Arrival checking

2.1 Upon the engine arrives at the shipyard, it has to be examined

the existence of corrosion on the whole parts of the engine under the responsibility and by expense of shipyard The specific arrival checking facts shall be performed by following

“3.0 routine check points”

2.2 If there is a serious corrosion on engine parts, please let the engine maker knows sending related report at the following contacts

- Doosan Engine Co, Ltd Site Operation Team

- Tel : +82-55-260-6802

- E-Mail : gunhyo.byen@doosan.com

2.3 If there is no request on corrosion within 7 days, after the arrival

of engine at shipyard, the engine and related parts will be considered that they are stored at shipyard in perfect condition without any corrosion in accordance with the clause number 2.2

2.4 Even if the corrosion is not indicated on the engine parts,

periodical inspection and preventive work must be implemented

in accordance with the following number 4 clause

3.0 Inspection matters

3.1 Inspection of corrosion, preservation condition of engine and related parts has to be performed on a regular basis under responsibility of and paid by shipbuilder The result shall be managed and recorded in the sheet

3.2 The main inspection parts and inspection period is as follow Please note that the period should be reduced in case of the condition of weather is high temperature and humidity or store the engine outside

Main inspection parts

Period of inspection Daily Every Week Every Two

Week

Cylinder frame ●

4.0 Inspection of Engine Parts

The existence of corrosion on whole engine parts shall be inspected every week and the results have to be recorded and kept in the daily sheet Examine thoroughly the lower and skid touched area

of comparatively easily corroded parts Besides, when it comes to the package of engine parts are unpacked for inspection, silica gel begs shall be inside of package when the parts are packed up again

4.1 Crankshaft

4.1.1 Inspection of Journal part

4.1.1.1 Remove all covers applied to the Crank Pin Journals and

Main Journals to protect them from corrosion and any kind

of damage

4.1.1.2 Remove the hardened protection oil from the surface with

plastic scrapers

*Note: Please do not use steel scrapers It may create damage

on the surface of engine parts

4.1.1.3 Remove the protection oil from the surface clearly using

cleansing oil and then inspect the condition of the surface

4.1.2 Inspection of Crank throw & Flange parts

4.1.2.1 Remove the hardened protection oil from the surface with

plastic scrapers

4.1.2.2 Remove the protection oil from the surface clearly using

cleansing oil and then inspect the condition of the surface

4.2 Inspection of Crosshead pin & Connecting Rod parts

4.2.1 Remove the packing boxes and open the vacuum packing

paper

4.2.2 Remove the hardened protection oil from the surface with

plastic scrapers

4.2.3 Remove the protection oil from the surface clearly using

cleansing oil and then inspect the condition of the surface 4.2.4 Note: The existence of corrosion between exposed surface

of Crosshead Pin and Cap on the Crosshead Bearing Cap must be inspected thoroughly

4.3 Inspection of Piston Rod

4.3.1 Remove the packing boxes and open the vacuum packing

paper

4.3.2 Remove the hardened protection oil from the surface with

plastic scrapers

4.3.3 Remove the protection oil from the surface clearly using

cleansing oil and then inspect the condition of the surface 4.3.4 Note: The existence of corrosion on the surface of Piston Rod

assembled with Stuffing Box must be inspected thoroughly

4.4 Cam & Camshaft

4.4.1 Open the inspection Door and remove the protection oil

Then, inspect the existence of corrosion

4.5 Cylinder Liner

4.5.1 Remove the vinyl and plywood covering top of the Cylinder

Liner

4.5.2 Remove the protection oil in and outside of the Cylinder

Liner, and then inspect the condition of the surface

4.5.3 Inspect the existence of corrosion on around the scavenge

port of Cylinder Liner in Pump side through the Inspection Door of Cylinder Frame

4.6 When corrosion is detected, please report the fact to the

engine maker and handle the circumstance in accordance with the method provided from the engine maker

4.7 When the inspection of corrosion and the treatment is

completed, the corrosion preventive work shall be implemented paid by and under the responsibility of shipbuilder according to the following clause number 5.0

5.0 Re-anticorrosion procedure

5.1 Crankshaft

5.1.1 Clean the surface of Crankshaft using petroleum based

cleansing oil and then polishes it with soft paper or clothe 5.1.2 Embrocate the Rust VETO 1070HF on the surface of Journals

to remove handprints and then polish the surface with soft paper or clothe

*Note: Do not touch the surface with bare hands

5.1.3 Embrocate TECTYL 506 or equivalent oil on the

manufactured surface After 12 hours of drying, embrocate TECTYL 506 or equivalent oil one more time and dry it again about 24 hours more

5.1.4 The surface of Journal parts shall be protected by wrapping

rubber sheet (thickness is 5 mm)

5.1.5 Wrap Rubber Plate, Wooden plate and Steel plate (thickness

is about 12~15mm) the lifting points when the crankshaft

is installed

*Note: Please wrap the plates when the anti-corrosion oil is

absolutely dried

5.2 Others

5.2.1 Clean the inspection area using petroleum based cleansing

oil and then polishes it with soft paper or clothe

5.2.2 Embrocate TECTYL506 or equivalent oil on the inspection

area and dry it about 12 hours Then, embrocate the anti-corrosion oil one more time

5.2.3 Embrocate TECTYL 859A or equivalent oil inside of the Piston

Cooling Insert Pipe and then seal it completely

5.2.4 Embrocate long term anti-corrosion oil (TECTYL 506or

equivalent oil) on the manufactured surface of the rest

parts (Guide rail, upper and lower area of huge parts).

B Management Procedure (After engine installation)

1.0 General

1.1 The relative humidity of inside engine must be kept up

with at below 50% by means of using a dehumidifier, explosion-proof light even after the engine installation is completed

1.2 Every two week, feed recommended high viscosity oil as

follow or TECTYL930A or equivalent oil into the parts as indicated at clause number 3.0 at A-1 and then rotate 3 and 1/3 cycles

*Note: Embrocate TECTYL930A or equivalent oil again

on Piston Rods when the engine turning is completed 1.2.1 Recommended high viscosity oil

Statoil : CylWay 1500

Esso : Esso Cylesso

Texaco : Meropa 460, 680

Chevron : Ep industrial oil 460

Mobil : Mobilgear 634, 636

Shell : Shell valvata oil 1000

1.3 Visual test has to be carried out on every part once a

week

2.0 Feeding Oil

3.0 Installation of Dehumidifier

3.1 Dehumidifier is to be used to prevent the creation of

compressed water from the variation of temperature and weather condition while the completed engine is stored or

[Crosshead Pin / Telescopic Pipe]

MC MC(ME)-C

[Crosshead ]

[Main Bearing] [Main Bearing]

[Telescopic Pipe]

[Telescopic Pipe]