PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD

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

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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD Edition 02
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD A1. 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 anticorrosion 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 explosionproof light creating enough heat (over 300W) shall be installed inside of chamber to remove humidity sufficiently. The dehumidifier and explosionproof 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 2
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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 : +82552606802 . EMail : 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 Dehumidifier ● Crankshaft ● Conrod ● Crosshead ● Piston rod ● 3
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD Cam & Camshaft ● Cylinder liner ● Inside ● Outside ● Engine rotating ● 3.3 Before the inspection, main inspection parts shall be washed by following procedure to facilitate the inspection process. Remove anticorrosion oil thoroughly with clean cloth after embrocate cleansing oil (petroleum based solvent or high temperature alkali cleansing liquid). To remove the hardened anticorrosion oil from the surface and avoid damage on engine parts, please use plastic scrapers and remove the film of anticorrosion 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 anticorrosion 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 4
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD then rotate the engine three and onethird 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. 5
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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(res) 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. A2. 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 anticorrosion 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 6
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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 explosionproof light creating enough heat (over 300W) to sufficiently remove humidity shall be installed inside of chamber. The dehumidifier and explosionproof 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 : +82552606802 . EMail : 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. 7
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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 Bedplate ● Crankshaft ● Frame box ● Conrod ● Crosshead ● Piston rod ● Cylinder frame ● Cylinder liner ● Cylinder cover ● Gear & chain wheel ● Camshaft ● 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. 8
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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 9
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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 Reanticorrosion procedure 5.1 Crankshaft 5.1.1 Clean the surface of Crankshaft using 10
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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 anticorrosion 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 anticorrosion 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) 11
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 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, explosionproof 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 A1 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 12
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD [Crosshead ] MC MC(ME)C [Crosshead Pin / Telescopic [Telescopic Pipe] Pipe] [Main Bearing] [Main Bearing] [Telescopic Pipe] 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 13
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD completed engine is stored or in the middle of transportation. Moreover, dehumidifier can be used when the engine parts need to be stored in the outdoor tent temporarily. 3.2 Recommended installation diagram is as follow. ① Dehumidifier ② Camshaft housing(Inlet) 14
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD ③ Camshaft housing (Outlet) ④ Frame box door (Outlet) ⑤ Shield fore (Inlet)
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 4.0 Installation of ExplosionProof Light 4.1When it comes to the installation of dehumidifier is impossible, the temperature and relative humidity of engine and related parts storage shall be increased by means of using explosionproof light to prevent the frost formation. *NOTE: The explosionproof light has to be operated continuously and protected from loosing heat because the performance of explosionproof light could possibly be declined due to the variation of external temperature. 4.2 The reference installation picture is as follow. [Picture of power cable installation] 16
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD [Picture of installation – Inside of the Chamber] [Picture of ExplosionProof Light] – 300W, Halogen Light [Reference. 1] Application of anticorrosion oil for main parts (Engine maker) *If there is no request from engine maker or ship owner, following anticorrosion oil shall be used as standard. 17
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD No NAME OF OIL APPLIED OIL . ASSEMBLE DISASSEMBLE 1 BED PLAT(lower surface, manufactured TECTYL 506 TECTYL 506 part) 2 BED PLAT(IN,OUT SIDE ,Not coated TECTYL 506 TECTYL 506 manufactured part) 3 MAIN JOURNAL VALVATA1000 TECTYL 506 4 CRANK PIN JOURNAL VALVATA1000 TECTYL 506 5 CRANK THROW and other manufactured TECTYL 506 TECTYL 506 part 6 FRAME BOX(manufactured part) TECTYL 506 TECTYL 506 7 CHAIN WHEEL & SPROCKET ASS'Y TECTYL 506 TECTYL 506 8 GUIDE SHOE, GUIDE PLAT TECTYL 506 TECTYL 506 9 WATR GUIDE JACKET & COOLING JACKET TECTYL 859A TECTYL 859A SPACE 10 TURNING WHEEL manufactured part TECTYL 506 TECTYL 506 11 Whole surface of CON ROD ASS'Y TECTYL 506 TECTYL 506 12 CRANK PIN BRG. SHELL VALVATA1000 TECTYL 506 13 Between XHEAD and CON ROD VALVATA1000 TECTYL 506 18
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 14 Inside of the PISTON COOLING OIL HOLE TECTYL 859A 15 Manufactured part of PISTON ROD TECTYL 506 TECTYL 506 16 CYLINDER LINER TECTYL 506 TECTYL 506 17 CAM SHAFT TECTYL 506 TECTYL 506 18 MAIN CHAIN TECTYL 502C TECTYL 502C 19 THRUST BRG. Inside TECTYL 502C TECTYL 506 20 STAY BOLT,NUT, other Joints TECTYL 506 TECTYL 506 21 Manufactured part of SCAVENGE AIR TECTYL 506 RECEIVER 22 Manufactured part of EXH. GAS TECTYL 506 RECEIVER 23 Manufactured part of TURBOCHARGER TECTYL 506 24 CYLINDER COVER upper&lower TECTYL 506 TECTYL 506 manufactured part, surface of combustion chamber 25 EXH.V/V OIL CYLINDER TECTYL 859A TECTYL 859A 26 CYL. COVER STUD TECTYL 506 TECTYL 506 27 Inside of the all sorts of PIPES TECTYL 859A (seal up after anticorrosion) 28 All sorts of BOLTS/NUTS, DISTANCE TECTYL 506 PIECES etc. 29 MAIN BEARING CAP L.O HOLE Anti TECTYL 859A TECTYL 859A corrosion 30 Upper and lower BOLT, REAMER BOLT TECTYL 506 TECTYL 506 HOLE of BED PLATE Anticorrosion 31 Upper and lower BOLT,REAMER BOLT HOLE TECTYL 506 of FRAME BOX Anticorrosion 32 Upper and lower BOLT,REAMER BOLT HOLE TECTYL 506 of CYL.FRAME Anticorrosion 33 AIR RECEIVER BOLT HOLE Anticorrosion TECTYL 506 34 EXH. GAS RECEIVER BOLT HOLE Anti TECTYL 506 corrosion 35 TURBO CHARGER BOLT HOLE Anti TECTYL 506 corrosion 36 Other manufactured part Anti TECTYL 506 corrosion [Reference. 2] Log Sheet Temp. & humidity should be measured and recorded about same time once a dry every dry. Date Total hour Temp.(°C) Humidity(%) Signature Remark 19
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD 20