Tài liệu PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD doc

PRESERVATION PROCEDURE
OF MAIN ENGINE
AT SHIPYARD
Edition 02
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
E-Mail :
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
De-humidifier ●
Crankshaft ●
Con-rod ●
Crosshead ●
Piston rod ●
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 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
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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.
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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(습동

부) 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.
5
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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 :
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
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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 ●
Con-rod ●

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.
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
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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.
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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.
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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 in the middle of transportation.
[Crosshead Pin / Telescopic Pipe]
MC
MC(ME)-C
[Crosshead ]
[Main Bearing] [Main Bearing]
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[Telescopic Pipe]
[Telescopic Pipe]
PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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.
<ex1 : 6S50MC>
① Dehumidifier ② Camshaft housing(Inlet)
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
③ Camshaft housing (Outlet) ④ Frame box door (Outlet)

⑤ Shield fore (Inlet)
<ex 2 : 6S60MC-C>
<
예
3 : 6S70ME-C>
13

PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
4.0 Installation of Explosion-Proof 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 explosion-proof light to prevent the frost
formation.
*NOTE: The explosion-proof light has to be operated continuously and
protected from loosing heat because the performance of explosion-proof
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]
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
[Picture of installation – Inside of the Chamber] [Picture of Explosion-Proof Light]
– 300W, Halogen Light
[Reference. 1] Application of anti-corrosion oil for main parts
(Engine maker)
*If there is no request from engine maker or ship owner, following anti-corrosion
oil shall be used as standard.
No. NAME OF OIL APPLIED OIL
ASSEMBLE DISASSEMBLE
1 BED PLAT(lower surface, manufactured part) TECTYL 506 TECTYL 506
2 BED PLAT(IN,OUT SIDE ,Not coated manufactured
part)
TECTYL 506 TECTYL 506
3 MAIN JOURNAL VALVATA1000 TECTYL 506
4 CRANK PIN JOURNAL VALVATA1000 TECTYL 506
5 CRANK THROW and other manufactured part TECTYL 506 TECTYL 506
6 FRAME BOX(manufactured part) TECTYL 506 TECTYL 506

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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
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 SPACE TECTYL 859A TECTYL 859A
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 X-HEAD and CON ROD VALVATA1000 TECTYL 506
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 RECEIVER - TECTYL 506
22 Manufactured part of EXH. GAS RECEIVER - TECTYL 506
23 Manufactured part of TURBOCHARGER - TECTYL 506
24 CYLINDER COVER upper&lower manufactured part,
surface of combustion chamber
TECTYL 506 TECTYL 506
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 (seal up after anti-
corrosion)
- TECTYL 859A
28 All sorts of BOLTS/NUTS, DISTANCE PIECES etc. - TECTYL 506
29 MAIN BEARING CAP L.O HOLE Anti-corrosion TECTYL 859A TECTYL 859A
30 Upper and lower BOLT, REAMER BOLT HOLE of

BED PLATE Anti-corrosion
TECTYL 506 TECTYL 506
31 Upper and lower BOLT,REAMER BOLT HOLE of
FRAME BOX Anti-corrosion
- TECTYL 506
32 Upper and lower BOLT,REAMER BOLT HOLE of
CYL.FRAME Anti-corrosion
- TECTYL 506
33 AIR RECEIVER BOLT HOLE Anti-corrosion - TECTYL 506
34 EXH. GAS RECEIVER BOLT HOLE Anti-corrosion - TECTYL 506
35 TURBO CHARGER BOLT HOLE Anti-corrosion - TECTYL 506
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
36 Other manufactured part Anti-corrosion - TECTYL 506
[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
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PRESERVATION PROCEDURE OF MAIN ENGINE AT SHIPYARD
E.O.D
18