M 25 CProject Guide • Generator Set
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M 25 C Generator Set
Introduction
Caterpillar Motoren GmbH & Co. KGP. O. Box, D-24157 KielGermanyPhone +49 431 3995-01Telefax +49 431 3995-2193
Issue Juli 2008
Information for the user of this project guide
The project information contained in the following is not binding, since technical data of products mayespecially change due to product development and customer requests. Caterpillar Motoren reservesthe right to modify and amend data at any time. Any liability for accuracy of information providedherein is excluded.
Binding determination of data is made by means of the Technical Specification and such other agree-ments as may be entered into in connection with the order. We will supply further binding data, draw-ings, diagrams, electrical drawings, etc. in connection with a corresponding order.
This edition supersedes the previous edition of this project guide.
All rights reserved. Reproduction or copying only with our prior written consent.
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M 25 C Generator Set
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M 25 C Generator Set
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M 25 C Generator Set
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M 25 C Generator Set
Contents
Page
1. Engine description 1 - 2 2. General data and outputs 3 - 4 3. Restrictions for low load operation 5 4. Load application and recovery behaviour 6 - 7 5. Technical data 8 - 9 6. Genset dimensions and weights 10 - 13 7. Maintenance platform 14 8. Required dimensions of generator 15 9. Space requirement for dismantling of charge air cooler and
turbocharger cartridge 1610. System connections 1711. Fuel oil system 18 - 3012. Lubricating oil system 31 - 3713. Cooling water system 38 - 4414. Flow velocities in pipes 4515. Starting air system 4616. Combustion air system 4717. Exhaust system 48 - 5318. Air borne sound power level 5419. Foundation 55 - 5620. Control and monitoring system 57 - 6621. Diagnostic system DICARE 67 - 6822. Diesel engine management system DIMOS 6923. Standard acceptance test run 7024. EIAPP certificate 7125. Painting/Preservation 72 - 7326. Lifting of gensets 7427. Engine parts 75
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1M 25 C Generator Set
1. Engine description
The M 25 C is a four stroke diesel engine, turbocharged and intercooled with direct fuel injection.
In-line engine M 25 C
Cylinder configuration: 6, 8, 9 in-lineBore: 255 mmStroke: 400 mmStroke/Bore-Ratio: 1.57Swept volume: 20.4 l/Cyl.Output/cyl.: 317/330 kWBMEP: 25.8 barRevolutions: 720/750 rpmMean piston speed: 9.6/10.0 m/sTurbocharging: pulseDirection of rotation: counter-clockwise,
viewed from driving end
6 5 4 3 2 1 Cyl. number
Free end Driving end
Control side
Exhaust side
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2 M 25 C Generator Set
1. Engine description
Engine design
- Designed for heavy fuel operation up to 700 cSt/50 °C, fuel grade acc. to CIMAC H55 K55, ISO 8217,1996 (E), ISO-F-RMH55 RMK55.
- 1-piece dry engine block made of nodular cast iron. It incorporates the crankshaft bearing, cam-shaft bearing, charge air receiver, vibration damper housing and gear drive housing.
- Underslung crankshaft with corrosion resistant main and big end bearing shells.
- Natural hardened liners, centrifugally casted, with calibration insert.
- Composite type pistons with steel crown and nodular cast iron skirt.
- Piston ring set consisting of 2 chromium plated compression rings, first ring with chrom-ceramiclayer and 1 chromium plated oil scraper ring. All ring grooves are hardened and located in the steelcrown.
- 2-piece connecting rod, fully machined, obliquely split with serrated joint.
- Cylinder head made of nodular cast iron with 2 inlet and 2 exhaust valves with valve rotators.Direct cooled exhaust valve seats.
- Camshaft made of sections per cylinder allowing a removal of the pieces sideways.
- Turbocharger supplied with inboard plain bearings lubricated by engine lubricating oil.
- 2-stage fresh water cooling system with 2-stage charge air cooler.
- Nozzle cooling for heavy fuel operation only with engine lubricating oil.
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3M 25 C Generator Set
2. General data and outputs
Remark:The generator outputs are based on 95 % efficiency and a power factor of 0,8.
Output definition
The maximum continuous rating stated by Caterpillar Motoren refers to the following reference condi-tions according to "IACS" (International Association of Classification Societies) for main and auxiliaryengines:
Reference conditions according to IACS (tropical conditions):air pressure 100 kPa (1 bar)air temperature 318 K (45 °C)relative humidity 60 %seawater temperature 305 K (32 °C)
The permissible overload is 10 % for one hour every twelve hours. The maximum fuel rack position islimited to 110 % continuous rating.
Fuel consumption
The fuel consumption data refer to the following reference conditions:intake temperature 298 K (25 °C)charge air temperature 318 K (45 °C)charge air coolant inlet temperature 298 K (25 °C)net heating value of the Diesel oil 42700 kJ/kgtolerance 5 %
Specification of the fuel consumption data without fitted-on pumps; for each pump fitted on an additio-nal consumption of 1 % has to be calculated.
720 rpm / 60 Hz 750 rpm / 50 Hz
EnginekWm
GeneratorkWe
EnginekWm
GeneratorkWe
6 M 25 C 1900 1805 1980 1881
8 M 25 C 2534 2407 2640 2580
9 M 25 C 2850 2708 2970 2822
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4 M 25 C Generator Set
Lubricating oil consumption
Actual data can be taken from the technical data.
Nitrogen oxide emissions (NOx-values)
NOx-limit values according to MARPOL 73/78 Annex VI: 12.1 g/kWh (n = 720 rpm)12.0 g/kWh (n = 750 rpm)
Generator according to cycle D2: 11.0 g/kWh (n = 720 rpm)10.5 g/kWh (n = 750 rpm)
General installation aspect:
Inclination angles at which gensets and essential aux. machinery is to operate satisfactorily:
Heel to each side: 15°Rolling to each side: + 22.5°Trim by head and stern: 5°Pitching: + 7.5°
2. General data and outputs
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5M 25 C Generator Set
3. Restrictions for low load operation
The engine can be started, stopped and run on heavy fuel oil under all operating conditions.
The HFO system of the engine remains in operation and keeps the HFO at injection viscosity. The tem-perature of the engine injection system is maintained by circulating hot HFO and heat losses are com-pensated.The lube oil treatment system (lube oil separator) remains in operation, the lube oil is separated con-tinuously.The operating temperature of the engine cooling water is maintained by the cooling water preheater.Below 25 % output heavy fuel operation is neither efficient nor economical.A change-over to diesel oil is recommended to avoid disadvantages as e.g. increased wear and tear,contamination of the air and exhaust gas systems and increased contamination of lube oil.
Cleaning run of engine
1 h 2 3 4 5 6 8 10 15 20 24 h
PE %
100
70
5040
30
20
15
10
8
6
HFO-operation
3 h 2 1 h 30 min 15 min 0
Cleaning run after partial load operation
Load increase periodapprox. 15 min.
Restricted HFO-operation
Emergency start in the event of black out
Emergency start with gravity feed fuel from the diesel oil day tank is possible.The bottom edge of the diesel oil day tank has to be arranged approx. 4 m above injection pump level.
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6 M 25 C Generator Set
4. Load application and recovery behaviour
Example: 9 M 25 C, 2850 kW, 720 rpm, bmep = 25.8 bar
1. max. load from 0 % to 30 % output2. max. load from 30 % to 52 % output3. max. load from 52 % to 71 % output4. max. load from 71 % to 100 % output
bmep at cont. rating of diesel engine
[bar]
Limiting curve for1st load step
Limiting curve for2nd load step
Limiting curve for3rd load step
[%]
Load
incr
ease
ref
erre
d to
con
tinuo
us r
atin
g
The permissible load increase according to ISO 8528-5 and IACS must be carried out in several steps,depending on the mean effective pressure. The ship‘s network must be designed so that this permissi-ble load increase is kept. The shipyard is to provide the approval of the responsible classificationsociety in time before classification acceptance of the engine.
Reference values for load steps, depending on bmep at continuous rating
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7M 25 C Generator Set
4. Load application and recovery behaviour
Standard settings:
- Droop 4 %- Fuel rack 110 %- Speed setting range + 5 %
Standard speed governor, make RE, type 1102, equipped with:
- Speed setting motor (24 V DC/100 % continuous duty) for a setting speed of 4 - 8 sec/Hz- Start fuel limiter- Shut-down solenoid (24 V DC/100 % continuous duty) for remote stop (not for automatic engine
stop)- Infinitely adjustable from the outside at the governor, 0 - 10 % droop
DE-drive only with electronic governor, maker: RE, type Viking 25 (standard) or Woodward 723+(option)
Recovery behaviour after load increase based on reference values for load steps as well as unloading.
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8 M 25 C Generator Set
5. Technical data
Cylinder 6 8 9 Performance data Maximum continous rating acc. ISO 3046/1 kW 1900 2000 2534 2660 2850 3000
Speed rpm 720 750 720 750 720 750 Minimum speed rpm 240 250 240 250 240 250 Brake mean effektive pressure bar 25.8 26.1 25.8 26.1 25.8 26.1 Charge air pressure bar 3.1 3.2 3 3.2 3.2 Compression pressure bar 172 175 172 175 172 175 Firing pressure bar 204 208 204 208 200 204 Combustion air demand (ta = 20 °C) m3/h 11100 12850 14515 15665 16550 17020 Delivery/injection timing ° b. TDC 11/8 11/8 11/8 Exhaust gas temperature after cylinder/turbine
°C 360/305 360/290 370/325 370/320 380/320
Specific fuel oil consumption Const. speed 1) 100 % 85 % 75 % 50 %
g/kWh g/kWh g/kWh g/kWh
184183185193
184183185193
184183185193
Lubricating oil consumption 2) g/kWh 0.6 0.6 0.6 Turbocharger type HPR6000 HPR6000 HPR6000 Fuel Engine driven feed pump (for gas oil/MDO only) m3/h/bar 1.5/3 1.5/3 1.5/3
Mesh size MDO fine filter mm 0.025 0.025 0.025 Mesh size HFO selfcleaning filter mm 0.010 0.010 0.010 Mesh size HFO fine filter mm 0.034 0.034 0.034 Nozzle cooling by lubricating oil system for heavy fuel only
Lubricating Oil Engine driven pump m3/h/bar 89/10 93/10 89/10 93/10 89/10 93/10 Working pressure on engine inlet bar 4 - 5 4 - 5 4 - 5 Prelubrication pump m3/h/bar 6.6/5 10/5 10/5 Temperature at engine inlet °C 60-65 60-65 60-65 Temperature controller DN mm 80 100 100 Selfcleaning filter DN mm 80 80 80 Mesh size selfcleaning filter mm 0.03 0.03 0.03
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9M 25 C Generator Set
5. Technical data
Cylinder 6 8 9 Fresh water cooling Engine content m3 0.4 0.5 0.6 Pressure at engine inlet min/max bar Header tank capacity m3
Temperature at engine outlet °C
2.5/6.0 0.2
80 - 90
2.5/6.0 0.25
80 - 90
2.5/6.0 0.3
80 - 90 Two circuit system Engine driven pump HT m3/h/bar 40/3.7 55/3.5 60/3.7 Independent pump HT m3/h/bar 40/3.0 55/3.0 60/3.0 HT-Controller DN mm 80 100 100 Water demand LT-charge air cooler m3/h 40 45 50 Temperature at LT-charge air cooler inlet
°C 38 38 38
Heat Dissipation Specific jacket water heat kJ/kWh 500 500 500 Specific lub. oil heat kJ/kWh 490 490 490 Lub. oil cooler MJ/h 931 970 1242 1294 1396 1455 Jacket water MJ/h 950 990 1267 1320 1425 1485 Charge air cooler (HT-Stage) 3) MJ/h 2160 2255 2808 2934 3096 3240 Charge air cooler (LT-Stage) 3) MJ/h 828 884 1116 1116 1260 1260 (HT-Stage after engine) Heat radiation engine MJ/h 306 408 460 Exhaust gas Silencer/spark arrester DN 25 dBA mm 500 600 600 DN 35 dBA mm 500 600 600 Pipe diameter DN after turbine mm 500 600 600 Maximum exhaust gas pressure drop
bar 0.03 0.03 0.03
Temperature 5) at 25 °C air intake °C 305 290 325 320 320 320 45 °C air intake °C 330 306 340 335 340 339 Mass 5) at 25 °C air intake kg/h 13570 16120 17940 20070 20442 22000 45 °C air intake kg/h 13027 14146 17222 18044 19624 19600 Starting air Starting air pressure max. bar 30 30 30 Minimum starting air pressure bar 10 10 10 Air consumption per Start 4) Nm3 0.8 0.8 0.8 1) Reference conditions: LCV = 42700 kJ/kg, ambient temperature 25 °C charge air temperature 45 °C,
tolerance 5 %, + 1 % for each engine driven pump 2) Standard value, tolerance + 0.3 g/kWh, related on full load 3) Charge air heat based on 45 °C ambient temperature 4) Preheated engine 5) Tolerance 10 %, relative air humidity 60 %
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10 M 25 C Generator Set
6. Genset dimensions and weights
Removal of:
Piston in transverse direction X1 = 3760 mmin longitudinal direction X2 = 4340 mmin transverse dir. reduced X1 red. = 3640 mm
Cylinder Liner in transverse direction Y1 = 3850 mmin longitudinal direction Y2 = 4075 mmin transverse dir. reduced Y1 red. = 3640 mm
Reduced removal height with special tools only.
Genset centre distance Minimum2700 mm (2 gensets side by side)
Dry weight Dimensions [mm]
Engine Genset 1)Type
A 1 ) B C D E F [t] [t]
6 M 25 C 8070 6735 2950 1340 2479 1700 21 44
8 M 25 C 9130 7795 3097 1340 2534 1700 28 49
9 M 25 C 9460 8125 3097 1340 2534 1700 30 54
1) Dependent on generator make/type
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11M 25 C Generator Set
6. Genset dimensions 6 M 25 C
Scal
e 1
: 50
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12 M 25 C Generator Set
6. Genset dimensions 8 M 25 C
Scal
e 1
: 50
m
13M 25 C Generator Set
6. Genset dimensions 9 M 25 C
Scal
e 1
: 50
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14 M 25 C Generator Set
7. Maintenance platform (option)
The platform, located at the control side of the genset, is normally designed and manufactured by theshipyard. As an option Caterpillar Motoren can supply a platform including stairs and ladder.
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15M 25 C Generator Set
8. Required dimensions of generator
Generators structural requirements for MaK diesel gensets M 25 C
- Mounting flap for anti-condensation heater above the mounts- With air cooling the air outlet above the mounts- The mounts are to be designed with 4 alignment screws- Plain bearings must be removable without coupling removal
Type Design A max. B C Ø D max.
Ø d F H Ø M S min.
6 M 25 C 2700
8 M 25 C 3000
9 M 25 C
B 20
2900
1700 1900 1500 200 250 405 45 220
Contact surfaces for each pedestal in one piece and free of paint
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16 M 25 C Generator Set
9. Space requirement for dismantling of charge air cooler andturbocharger cartridge
Charge air cooler cleaning
Cleaning is carried out with charge air cooler dismantled. A container to receive the cooler and clean-ing liquid is to be supplied by the yard. Intensive cleaning is achieved by using ultra sonic vibrators.
Turbocharger Removal/Maintenance
Caterpillar Motoren recommends to provide a lifting device above the bearing housing of the turbo-charger (see "S").
Weights of Turbocharger [kg] Dimensions [mm]
Turbo-charger, compl.
Silencer Compressor housing
Turbine inlet housing
Exhaust-gas elbow
Car-tridge
Rotor P R S
563 63 136 125 68 150 32 1454 729 437
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17M 25 C Generator Set
10. System connections
C12 Generator Cooler, InletC13 Generator Cooler, OutletC14 Charge Air Cooler LT, Inlet DN 65C15 Charge Air Cooler LT, Outlet DN 65C17 Charge Air Cooler HT, Outlet DN 80C21 Freshwater Pump HT, Inlet DN 80C55c Connection Flushing Pipe DN 50
Selfcleaning Filter
C58 Luboil Force Pump, Outlet DN 80C59 Luboil Inlet, Selfcleaning Filter DN 80C60 Separator Connection, Suction Side DN 50C61 Separator Connection, Delivery Side DN 50C65 Luboil Filling DN 50C76 Fuel Inlet, Duplex Filter DN 32C78 Fuel, Outlet DN 32C86 Starting Air DN 40C91a Exhaust Gas Outlet 6 M 25 C DN 500
8/9 M 25 C DN 600
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18 M 25 C Generator Set
11. Fuel oil systemMarine gas oil / marine diesel oil operation
Two fuel product groups are permitted for MaK engines:
Pure distillates: Gas oil, marine gas oils, diesel fuel
Distillate/mixed fuels: Marine gas oil (MGO), marine diesel oil (MDO). The differ-ence between distillate/mixed fuels and pure distillates arehigher density, sulphur content and viscosity.
Max. injection viscosity 12 cSt (2 °E)
Day tank DT 1: To be layed out for heat dissipation from injection pumps,approx. 1.5 kW/cylinder
Strainer (separate) DF 2: Mesh size 0.32 mm, dimensions see HFO-system
Preheater (separate) DH 1: Heating capacity
Not required with:- MGO < 7 cSt/40 °C- Heated day tank
Q [kW] =Peng. [kW]
166
MGO MDO
Designation Max. viscosity[cSt/40 °C]
Designation Max. viscosity[cSt/40 °C]
ISO 8217: 1996 ISO-F-DMA 1.5 - 6.0 ISO-F-DMB ISO-F-DMC
1114
ASTM D 975-78 No. 1 D No. 2 D
2.44.1
No. 2 D No. 4 D
4.124.0
DIN DIN EN 590 8
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19M 25 C Generator Set
Feed pump (fitted) DP 1: Capacity see technical data
Pressure regulating valve (fitted) DR 2
Fine filter (fitted) DF 1: Duplex filter, mesh size see technical data.
Separator DS 1: Recommended for MGORequired for MDO
Capacity
V [l/h] = 0.22 · Peng. [kW]
11. Fuel oil systemMarine gas oil / marine diesel oil operation
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20 M 25 C Generator Set
11. Fuel oil systemMarine gas oil / marine diesel oil operation
Accessories and fittings:DF1 Fine filter (duplex filter) KP1 Fuel injection pumpDF2 Primary filter (duplex filter) KT1 Drip fuel tankDF3 Coarse filter FQ1 Flow quantity indicatorDH1 Preheater LI Level indicatorDH2 Electrical preheater (separator) LSH Level switch highDP1 Diesel oil feed pump LSL Level switch lowDP3 Transfer pump (to day tank) PDI Diff. pressure indicatorDP5 Transfer pump (separator) PDSH Diff. pressure switch highDR2 Pressure regulating valve PI Pressure indicatorDS1 Separator PSL Pressure switch lowDT1 Day tank, min. 1 m above crankshaft level PT Pressure transmitterDT4 Storage tank TI Temperature indicator
TT Temperature transmitter (PT 100)Connecting points:C73 Fuel inlet C75 Connection, stand-by pumpC78 Fuel outlet C81 Drip fuelC81b Drip fuel (filter pan)
General notes:For location, dimensions and design(e. g. flexible connection) of the con-necting points see engine installa-tion drawing.DH1 not required with:- MGO < 7 cSt/40°- heated diesel oil day tank DT1
Notes:p Free outlet requireds Please refer to the measuring
point list regarding design of themonitoring devices
z For systems without stand-bypump connect C75 for filling-upof the engine system!
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21M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
1)An
indi
catio
n of
the
appr
oxim
ate
equi
vale
nts
inki
nem
atic
vis
cosi
ty a
t 50
°C a
nd R
edw
. I s
ec.
100
°F is
giv
en b
elow
:
Kine
mat
ic v
isco
sity
at
100
°C m
m2 /s
(cSt
)Ki
nem
atic
vis
cosi
ty a
t 5
0 °C
mm
2 /s (c
St)
Kine
mat
ic v
isco
sity
at
100
°F R
edw
. I s
ec.
Fuel
sha
ll be
free
of u
sed
lubr
icat
ing
oil (
ulo)
2)IS
O: 9
753)
ISO:
981
4)IS
O: 9
855)
ISO:
not
lim
ited
6)IS
O: C
arbo
n Re
sidu
e 10
7)IS
O: 0
.20
7
10
15
2
5
35
4
5
55
30
40
80
180
380
500
700
200
300
600
1500
3000
5000
7000
Requ
irem
ents
for r
esid
ual f
uels
for d
iese
l eng
ines
(as
bunk
ered
)
De
sign
atio
n:
CIM
AC
A 10
CI
MAC
B
10
CIM
AC
C 10
CI
MAC
D
15
CIM
AC
E 25
CI
MAC
F
25
CIM
AC
G 35
CI
MAC
H
35
CIM
AC
K 35
CI
MAC
H
45
CIM
AC
K 45
CI
MAC
H
55
CIM
AC
K 55
Re
late
d to
ISO8
217
(200
5):F
- RM
A30
RMB3
0 RM
B30
RMD8
0 RM
E180
RM
F180
RM
G380
RM
H380
RM
K380
RM
H500
RM
K500
RM
H700
RM
K700
Char
acte
ristic
Di
m.
Lim
it
Dens
ity a
t 15
°C
kg/m
3m
ax95
02)
97
5 3)
98
0 4)
991
99
1 10
10
991
1010
99
1 10
10
m
ax
10
15
25
35
45
55
Kin.
vis
cosi
ty a
t 100
°C
cSt1
)m
in6
5)15
5)
Flas
h po
int
°C
min
60
60
60
60
60
60
Pour
poi
nt
(win
ter)
(sum
mer
) °C
max
0 624
30
30
30
30
30
Carb
on R
esid
ue
(Con
rads
on)
% (m
/m)
max
12
6)
14
14
15
20
18
22
22
22
Ash
% (m
/m)
max
0.
10
0.10
0.
10
0.15
0.
15
0.15
7)
0.15
7)
0.15
7)
Tota
l sed
im, a
fter a
gein
g %
(m/m
) m
ax
0.10
0.
10
0.10
0.
10
0.10
0.
10
Wat
er
% (V
/V
max
0.
5 0.
5 0.
5 0.
5 0.
5 0.
5
Sulp
hur
% (m
/m)
max
3.
5 4.
0 4.
5 4.
5 4.
5 4.
5
Vana
dium
m
g/kg
m
ax
150
30
0 35
0 20
0 50
0 30
0 60
0 60
0 60
0
Alum
iniu
m +
Sili
con
mg/
kg
max
80
80
80
80
80
80
Zinc
m
g/kg
m
ax
15
15
15
15
15
15
Phos
phor
m
g/kg
m
ax
15
15
15
15
15
15
Calc
ium
m
g/kg
m
ax
30
30
30
30
30
30
m
22 M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
Visc
osity
/tem
pera
ture
dia
gram
m
23M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
Minimum requirements for storage, treatment and supply systems
Bunker tanks: In order to avoid severe operational problems due to incom-patibility, each bunkering must be made in a separate stor-age tank.
Settling tanks: In order to ensure a sufficient settling effect, the followingsettling tank designs are permissible:
- 2 settling tanks, each with a capacity sufficient for24 hours full load operation of all consumers
- 1 settling tank with a capacity sufficient for 36 hours fullload operation of all consumers and automatic filling
- Settling tank temperature 70 - 80 °C
Day tank: Two day tanks are required. The day tank capacity mustcover at least 4 hours/max. 24 hours full load operation of allconsumers. An overflow system into the settling tanks andsufficient insulation are required.
Guide values for temperatures
Fuel viscosity cSt/50 °C
Tank temperature [°C]
30 - 80 70 - 80
80 - 180 80 - 90
> 180 - 700 max. 98
Separators: Caterpillar Motoren recommends to install two self-clean-ing separators. Design parameters as per supplier recom-mendation. Separation temperature 98 °C! Maker and typeare to be advised to Caterpillar Motoren.
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24 M 25 C Generator Set
Pressure pumps HP 1/HP 2: Screw type pump with mechanical seal.Installation vertical or horizontal. Delivery head 5 bar.
Capacity
V [m3/h] = 0.4 .. Peng. [kW]
1000
11. Fuel oil systemHeavy fuel operation
Supply system (Separate components): A closed pressurized system between daytank and engineis required as well as the installation of an automatic back-flushing filter with a mesh size of 10 μm (absolute).
Strainer HF 2: Mesh size 0.32 mm
DN H1 H2 W D Output [kW] mm
< 5000 32 249 220 206 180
< 10000 40 330 300 250 210
< 20000 65 523 480 260 355
> 20000 80 690 700 370 430
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25M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
Self cleaning filter HF 4: Mesh size 10 μm sphere passing mesh, make Boll & Kirch*,without by-pass filter.
* In case of Caterpillar Motoren supply.
= 8000 kW, Type 6.60, DN 50 > 8000 kW, Type 6.64, DN 100<
Dismantling of sieve300 mm
Dismantling of sieve600 mm
Pressure regulating valve HR 1: Controls the pressure at the engine inlet, approx. 4 bar.
Engine outputs
= 8000 kW > 8000 kW<
m
26 M 25 C Generator Set
Final preheater HH 1/HH 2: Heating media:
- Electric current (max. surface power density 1.1 W/cm2)- Steam- Thermal oil
Temperature at engine inlet max 150 °C.
Viscosimeter HR 2: Controls the injection viscosity to 10 - 12 cSt.
Fine filter (fitted) HF 1: - Mesh size 34 μm- Without heating- Differential pressure indication and alarm contact fitted
V [m3/h] = 0.7 ...... Peng. [kW]
1000
Circulating pumps HP 3/HP 4: Design see pressure pumps.
Capacity
11. Fuel oil systemHeavy fuel operation
Mixing tank (without insulation) HT 2:
Vent
Inletfrompressurepump
Fromengine
Outletto engine
Engineoutput
Volume Dimensions [mm] Weight
[kW] [l] A D E [kg]
< 4000 50 950 323 750 70
< 10000 100 1700 323 1500 120
> 10000 200 1700 406 1500 175
m
27M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
Mixing receiver HT 4: Permits the individual change-over to gas oil/MDO. Re-duces the temperature variation during change over.Capacity: approx. 30 lDimensions: Ø approx. 320 mm
height approx. 665 mmwithout insulation
Diesel oil intermediate tank DT 2: Required for the individual change-over to gas oil/MDO.Capacity: approx. 49 lDimensions: see mixing receiver
Diesel oil feed pump DP 1: Capacity and delivery headsee heavy fuel oil circulating pump HP 3/HP 4
Fuel Cooler DH 3: Required for heat dissipation with MGO/MDO operation.
m
28 M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
Notes:ff Flow verlocity in circuit system
< 0.5 m/sm Lead vent pipe beyond day tank
levelp Free outlet requireds Please refer to the measuring
point list regarding design of themonitoring devices
tt Neither insulated nor heated pipeu From diesel oil separator or diesel
oil transfer pump
All heavy fuel pipes have to be insu-lated.---- heated pipe
Connecting points:C76 Inlet duplex filterC78 Fuel outletC81 Drip fuelC81b Drip fuel (filter pan)
Accessories and fittings:DH3 MGO/MDO coolerDP1 Diesel oil feed pumpDR2 Pressure regulating valveDT1 Diesel oil day tankDT2 Diesel oil intermediate tankHF1 Fine filter (duplex filter)HF2 Primary filterHF4 Self cleaning filterHH1 Heavy fuel final preheaterHH2 Stand-by final preheaterHH4 Heating coilHP1/HP2 Pressure pumpHP3/HP4 Circulating PumpHR1 Pressure regulating valveHR2 ViscometerHT1 Heavy fuel day tankHT2 Mixing tank
General notes:For location, dimensions and design (e. g. flexible connection) of the connectingpoints see engine installation drawing. Valve fittings with loose cone are not ac-cepted in the admission and return lines.
Tanks and separators integrated inthe main engine system
HT4 Mixing receiverKP1 Injection pumpFQI Flow quantity indicatorLI Level indicatorLSH Level switch highLSL Level switch lowPDI Diff. pressure indicatorPDSH Diff. pressure switch highPDSL Diff. pressure switch lowPI Pressure indicatorPSL Pressure switch lowPT Pressure transmitterTI Temperature indicatorVI Viscosity indicatorVSH Viscosity Control switch highVSL Viscosity Control switch low
- Peak pressuresmax. 16 bar
m
29M 25 C Generator Set
11. Fuel oil systemHeavy fuel operation
Heavy fuel oil supply- and booster standard module
(Pressurized System), up to IFO 700 for steam and thermaloil heating, up to IFO 180 for electr. heating
Technical specification of the main components:
1. Primary filter
1 pc. Duplex strainer 540 microns
2. Fuel pressure pumps, vertical installation
2 pcs. Screw pumps with mechanical seal
3. Pressure regulating system
1 pc. Pressure regulating valve
4. Self cleaning fine filter
1 pc. Automatic self cleaning fine filter 10 microns absolut (without by-pass filter)
5. Consumption measuring system
1 pc. Flowmeter with local totalizer
6. Mixing tank with accessories
1 pc. Pressure mixing tank approx. 49 lvolume up to 4,000 kWapprox. 99 lvolume from 4,001 - 20,000 kW
(with quick-closing valve)
7. Circulating pumps, vertical installation
2 pcs. Screw pumps with mechanical seal
8. Final preheater
2 pcs. Shell and tube heat exchangers each 100 % (saturated 7 bar or thermal oil 180 °C)each 100 % electrical
m
30 M 25 C Generator Set
9. a) Heating medium control valve (steam/thermaloil)b) Control cabinet (electrical)
1 pc. control valve with built-on positioning drive 1 pc. control cabinet for electr. preheater
10. Viscosity control system
1 pc. automatic viscosity measure and control system VAF
Module controlled automatically with alarms and startersPressure pump starters with stand-by automaticCirculating pump starters with stand-by automaticPI-controller for viscosity controllingStarter for the viscosimeterAnalog output signal 4 - 20 mA for viscosity
AlarmsPressure pump stand-by startLow level in the mixing tankCirculating pump stand-by startSelf cleaning fine filter pollutionViscosity alarm high/lowThe alarms with potential free contacts
Alarm cabinet with alarms to engine control room and connection possibility for remote start/stop andindicating lamp of fuel pressure and circulating pumps
Performance and materials:The whole module is tubed and cabled up to the terminal strips in the electric switch boxes which areinstalled on the module. All necessary components like valves, pressure switches, thermometers,gauges etc. are included. The fuel oil pipes are equipped with trace heating (steam, thermaloil orelectrical) where necessary.The module will be tested hydrostatical and functional in the workshop without heating.
11. Fuel oil systemHeavy fuel operation
Steam Thermal oil
Electric Steam Thermal oil
Electric Steam Thermal oil
Steam Thermal oil
For power in kW up to (50/60 Hz) 4000/4800 4000/4800 8000/9600 8000/9600 12000/14400 20000/24000 Length in mm 2200 2700 3200 3500 3500 3500 Width in mm 1200 1200 1200 1200 1350 1500 Height in mm 2000 2000 2000 2000 2000 2000 Weight (approx.) in kg 2300 2400 2500 2700 3100 3600
m
31M 25 C Generator Set
12. Lubricating oil system
Lube oil quality
The viscosity class SAE 40 is required.
Wear and tear and thus the service life of the engine depend on the lube oil quality. Therefore highrequirements are made for lubricants:
Constant uniform distribution of the additives at all operating conditions. Perfect cleaning (detergenteffect) and dispersing power, prevention of deposits from the combustion process in the engine. Suffi-cient alkalinity in order to neutralize acid combustion residues. The TBN (total base number) must bebetween 30 and 40 KOH/g at HFO operation. For MDO operation the TBN is 12 - 20 depending on sulphurcontent.
I Approved in operationII Permitted for controlled use
When these lube oils are used, Caterpillar Motoren must be informed because at the moment there is insufficient experience availablefor MaK-engines. Otherwise the warranty is invalid.
1) Synthetic oil with a high viscosity index (SAE 15 W/40). Only permitted if the oil inlet temperatures can be decreased by 5 - 10 °C.
Manufacturer Diesel oil/Marine-diesel oil operation
I II HFO operation I II
AGIP DIESEL SIGMA S CLADIUM 120
X X
CLADIUM 300 S CLADIUM 400 S
XX
BP ENERGOL DS 3-154 VANELLUS C 3
XX
ENERGOL IC-HFX 304 ENERGOL IC-HFX 404
XX
CALTEX DELO 1000 MARINE DELO 2000 MARINE
XX
DELO 3000 MARINE DELO 3400 MARINE
XX
CASTROL MARINE MLC MXD 154 TLX PLUS 204
X
XX
TLX PLUS 304 TLX PLUS 404
XX
CEPSA KORAL 1540 X CHEVRON DELO 1000 MARINE OIL
DELO 2000 MARINE OIL XX
DELO 3000 MARINE OIL DELO 3400 MARINE OIL
XX
TOTAL LUBMARINE DISOLA M 4015 AURELIA 4030
XX
AURELIA XL 4030 AURELIA XT 4040
XX
ESSO EXXMAR 12 TP EXXMAR CM+ ESSOLUBE X 301
XXX
EXXMAR 30 TP EXXMAR 40 TP EXXMAR 30 TP PLUS EXXMAR 40 TP PLUS
X
XX
X
MOBIL MOBILGARD 412 MOBILGARD ADL MOBILGARD M 430 MOBILGARD 1-SHC 1)
XXX
X
MOBILGARD M 430 MOBILGARD M 440
XX
SHELL GADINIA GADINIA AL ARGINA S ARGINA T
XXXX
ARGINA T ARGINA X
XX
TEXACO TARO 16 XD TARO 12 XD TARO 20 DP
XXX
TARO 30 DP TARO 40 XL
XX
m
32 M 25 C Generator Set
12. Lubricating oil system
Lube oil quantities/- change intervals: Circulating quantity: approx. 0,9 l/kW output
The change intervals depend on:- the quantity- fuel quality- quality of lube oil treatment (filter, separator)- engine load
By continuous checks of lube oil samples (decisive arethe limit values as per "MaK Operating Media") an opti-mum condition can be reached.
Force pump (fitted) LP 1: Gear type pump
Suction strainer (fitted) LF 4
Selfcleaning filter (fitted) LF 2: Mesh size 30 μm passing mesh. Without by-pass filter.Without flushing oil treatment. Differential pressure in-dication and alarm contact fitted.
Cooler (separate) LH 1: Plate type (plates made of stainless steel)Option on request: fitted on genset
m
33M 25 C Generator Set
12. Lubricating oil system
Dimensions [mm] Weight
DN D F G H [kg]
6 M 25 C 80 200 171 267 151 27
8/9 M 25 C 100 220 217 403 167 47
Temperature controller (separate) LR 1: P-controller with manual emergency adjustmentOption on request:fitted on genset (in combination with the cooler)
Prelubrication pump (fitted) LP 5: Delivery head 5 barContinuous lubrication is carried out with stopped genset.Starter to be supplied by the yard.
Circulating tank LT 1: Located in the base frame, equipped with low level switchand level control stick.
Hz Capacity [m3/h] Electr. motor [kW]
50 6.6 3.0 6 M 25 C
60 8.0 3.6
50 10.4 5.5 8/9 M 25 C
60 12.7 6.6
m
34 M 25 C Generator Set
12. Lubricating oil system
Crankcase ventilation: The location of the ventilation is on top of the engine blocknear to the turbocharger (see system connections C 91).
The vent pipe DN 80 must be equipped with a condensatetrap and drain. It has to be enlarged to DN 100 approx. 1 mafter the connection point and to be arranged separately foreach genset. Crankcase pressure max. 150 Pa (15 mm WC).
Treatment at MGO/MDO operation
The service life of the lube oil will be extended by by-passtreatment.
Centrifuge (Option) LS 2: For MGO/MDO operation onlyMinimum requirement
Separator LS 1: Design:- Separating temperature 85 - 95 °C- Quantity to be cleaned three times/day- Self cleaning type
Separation capacity
Veff [l/h] = 0.18 · Peng [kW]
For auxiliary gensets: Strongly recommended1 separator for max. 3 engines
For diesel-electric drive: Required1 separator for max. 3 engines with automatically switchover in intervalls of 1.5 hours. See treatment at heavy fueloperation.
m
35M 25 C Generator Set
12. Lubricating oil systemMGO/MDO operation
Accessories and fittings:LF2 Self cleaning filterLF4 Suction strainerLH1 CoolerLH2 PreheaterLP1 Force pumpLP5 Prelubrication pumpLP9 Transfer pump (separator)LR1 Temperature control valveLR2 Pressure regulating valveLS1 SeparatorLS2 CentrifugeLT1 Sump tank
General notes:For location, dimensions and de-sign (e. g. flexible connection) ofthe connecting points see engineinstallation drawing.
Notes:f Drain* Optionh Please refer to the measuring
point list regarding design ofthe monitoring devices
o See "crankcase ventilation in-stallation instructions"
p Free outlet required
Connecting points:C58 Force pump, delivery sideC59 Luboil inlet, luboil coolerC60 Separator connection, suction
side or drain or filling pipeC61 Separator connection, delivery
side or from by-pass filterC65 Luboil fillingC91 Crankcase ventilation to stackNC Normally closed
LI Level indicatorLSL Level switch lowPDI Diff. pressure indicatorPDSH Diff. pressure switch highPI Pressure indicatorPSL Pressure switch lowPSLL Pressure switch lowPT Pressure transmitterTI Temperature indicatorTSHH Temperature switch highTT Temperature transmitter (PT 100)
m
36 M 25 C Generator Set
12. Lubricating oil systemTreatment at heavy fuel operation
Separator LS 1: Required with the following design:- Separating temperature 95 °C- Quantity to be cleaned five times/day- Self cleaning type
Separation capacity
Veff [l/h] = 0.29 . Peng. [Total kW]
For auxiliary gensets: 1 separator per genset recommended1 separator for maximum 3 gensets required
The following is to be observed: 1. The separator is switched over successively and auto-matically controlled in intervals of 1.5 hours to the re-spective sump tank of the diesel genset.
2. The change over valves are to be provided with mutualmechanical or electric interlocks in order to avoid faultsin switching over.
3. All diesel gensets (operation, stand-by, stopped) are tobe included in these change over intervals.
4. If a diesel genset is not available (servicing, maintenanceetc.), it must be taken out of the interval control. For this acontact of a higher ranking start/stop automatic (inte-grated in the power management system) must be pro-vided for the interval control.
5. The separator must always be running or restarted aftera failure/black-out.
Change over valves and the automatic switch over controlsystem have to be supplied by the yard.
For diesel-electric drive: 1 Separator per genset required
m
37M 25 C Generator Set
12. Lubricating oil systemHeavy fuel operation
Accessories and fittings:LF2 Self cleaning filterLF4 Suction strainerLH1 CoolerLH2 PreheaterLP1 Force pumpLP5 Prelubrication pumpLP9 Transfer pump (separator)LR1 Temperature control valveLR2 Pressure regulating valveLS1 SeparatorLT1 Sump tank
General notes:For location, dimensions and de-sign (e. g. flexible connection) ofthe connecting points see engineinstallation drawing.
Notes:f Drainh Please refer to the measuring
point list regarding design ofthe monitoring devices
o See "crankcase ventilation in-stallation instructions"
p Free outlet required
Connecting points:C58 Force pump, delivery sideC59 Luboil inlet, luboil coolerC60 Separator connection, suction
side or drain or filling pipeC61 Separator connection, delivery
side or from by-pass filterC65 Luboil fillingC91 Crankcase ventilation to stackNC Normally closed
LI Level indicatorLSL Level switch lowPDI Diff. pressure indicatorPDSH Diff. pressure switch highPI Pressure indicatorPSL Pressure switch lowPSLL Pressure switch lowPT Pressure transmitterTI Temperature indicatorTSHH Temperature switch highTT Temperature transmitter (PT 100)
m
38 M 25 C Generator Set
13. Cooling water system
The heat generated by the engine (cylinder, turbocharger, charge air and lube oil) is to be eliminated bymeans of treated freshwater acc. to the MaK coolant regulations.
The inlet temperature in the LT-circuit is max. 38 °C.
Two-circuit cooling: with two-stage charge air cooler.
HT-cooling water pump (fitted) FP 1
HT-temperature controller (fitted) FR 1: P-controller with manual emergency adjustment.
LT-temperature controller (separate) FR 2: P-controller with manual emergency adjustment(basis). Option: PI-controller with electric drive.Not required with the combination of the main en-gine LT-system.
* Minimum, depending on total cooling water flow
Dimensions [mm] Weight
DN D F G H [kg]
6/8/9 M 25 C HT 80 200 171 267 151 27
3 x 6 M 25 C LT 125* 250 241 489 200 67
3 x 8/9 M 25 C LT 150* 285 254 489 200 80
m
39M 25 C Generator Set
ρ · H · VP = [kW]
367 · η
.
P - Power [kW]PM - Power of electr. motor [kW]V - Flow rate [m3/h]H - Delivery head [m]ρ - Density [kg/dm3]η - Pump efficiency
0.70 for centrifugal pumps
< 1.5 kW1.5 - 4 kW4 - 7.5 kW
> 7.5 - 40 kW> 40 kW
PM = 1.5 · PPM = 1.25 · PPM = 1.2 · PPM = 1.15 · PPM = 1.1 · P
.
Preheater with pump Consisting of circulating pump (5 m3/h), electric heater(fitted on base frame) FH 5/FP 7: FH 5/FP 7: FH 5/FP 7: FH 5/FP 7: FH 5/FP 7: (18 kW) and switch cabinet (separate: W x H x D = 450 x
300 x 150 mm). Voltage 380 - 460, frequency 50/60 Hz.
HT-cooler (separate) FH 1: Plate type (plates made of titanium), size depending on thetotal heat to be dissipated.
For auxiliary genset normally integrated in the main enginecooling system.
LT-cooler (separate) FH 2: Plate type (plates made of titanium), size depending on thetotal heat to be dissipated.
For auxiliary genset normally integrated in the main enginecooling system.
Header tank FT 1/FT 2: For auxiliary genset normally integrated in the main enginesystem.
- Arrangement: min. 4 m above crankshaft centre line.- Size acc. to technical engine data, in case of several en-
gines + 25 % volume per engine.- All continuous vents from engine are to be connected.
Drain tank with filling pump: Is recommended to collect the treated water when carryingout maintenance work (to be installed by the yard).
Electric motor driven pumps: Option for fresh and seawater , vertical design.Rough calculation of power demand for the electric bal-ance.
13. Cooling water system
m
40 M 25 C Generator Set
13. Cooling water system
Heat balance 6 M 25 C
m
41M 25 C Generator Set
13. Cooling water system
Heat balance 8 M 25 C
m
42 M 25 C Generator Set
13. Cooling water system
Heat balance 9 M 25 C
m
43M 25 C Generator Set
13. Cooling water systemIntegrated in the main engine LT-cooling water system
XH1 Generator coolerLI Level indicatorLSL Level switch lowPI Pressure indicatorPT Pressure transmitterTI Temperature indicatorTSHH Temperature switch highTT Temperature transmitter (PT 100)
General notes:For location, dimensions and design(e. g. flexible connection) of the con-necting points see engine installa-tion drawing.
Notes:h Please refer to the measuring
point list regarding design of themonitoring devices
Connecting points:C12 Generator cooler, inletC13 Generator cooler, outletC14 Charge air cooler LT, inletC15 Charge air cooler LT, outletC17 Charge air cooler HT, outletC21 Freshwater pump HT, inletC37 Vent
Accessories and fittings:CH1 Charge air cooler HTCH2 Charge air cooler LTDH3 Fuel oil cooler from MDO operationFH5 Freshwater preheaterFP1 Freshwater pump (fitted on engine) HTFP7 Preheating pumpFR1 Temperature control valve HTLH1 Luboil cooler
to central coolingsystem LT
from central coolingsystem LT
m
44 M 25 C Generator Set
13. Cooling water systemHT- and LT circuit
LH1 Luboil coolerSF1 Seawater filterSP1 Seawater pumpSP2 Seawater stand-by pumpST1 Sea chestXH1 Generator coolerLI Level indicatorLSL Level switch lowPI Pressure indicatorPSLL Pressure switch lowPT Pressure transmitterTI Temperature indicatorTSHH Temperature switch highTT Temperature transmitter (PT 100)
General notes:For location, dimensionsand design (e. g. flexibleconnection) of the connect-ing points see engine instal-lation drawing.With skin cooler not re-quired:- Seawater system (SP1,
SP2, SF1, ST1)Measurement 2103 only forDE-drive
Accessories and fittings:CH1 Charge air cooler HTCH2 Charge air cooler LTDH3 Fuel oil cooler from MDO operationFH1 Freshwater cooler HTFH2 Freshwater cooler LTFH5 Freshwater preheaterFP1 Freshwater pump (fitted on engine) HTFP4 Freshwater pump (separate) LTFP6 Freshwater stand-by pump LTFP7 Preheating pumpFR1 Temperature control valve HTFR2 Temperature control valve LTFR6 Sensor for temperatur control valveFT1 Compensation tank HTFT2 Compensation tank LT
Notes:h Please refer to the measuring
point list regarding design of themonitoring devices
Connecting points:C12 Generator cooler, inletC13 Generator cooler, outletC14 Charge air cooler LT, inletC15 Charge air cooler LT, outletC17 Charge air cooler HT, outletC21 Freshwater pump HT, inletC37 Vent
m
45M 25 C Generator Set
14. Flow velocities in pipes
Example: di = 100 mm, V = 60 m3/hVelocity in the pipe 2.1 m/s
m
46 M 25 C Generator Set
15. Starting air system
Required pressure 30 bar
Min. starting air pressure and air consumption see technical data.
General notes:For location, dimensions and design (e. g. flexible connection) ofthe connecting points see engine installation drawing.
Clean and dry starting air is required.
Notes:a Control aird Water drain (to be mounted at the lowest point)e To other gensetsh Please refer to the measuring point list regarding design of
the monitoring devices* Automatic drain required
Connecting points:C86 Connection, starting air
Accessories and fittings:AC1 CompressorAC2 Stand-by compressorAR1 Starting valveAR4 Pressure reducing valveAR5 Oil and water separatorAT1 Starting air receiverAT2 Starting air receiverPI Pressure indicatorPSL Pressure switch low, only for main enginePT Pressure transmitter
AT1/AT2 Option:- Typhon valve- Relief valve with pipe connection
m
47M 25 C Generator Set
16. Combustion air system
General: To obtain good working conditions in the engine room and toensure trouble free operation of all equipment attentionshall be paid to the engine room ventilation and the supply ofcombustion air.
The combustion air required and the heat radiation of allconsumers/heat producers must be taken into account.
Air intake from engine room (standard): - Fans are to be designed for a slight overpressure in theengine room.
- On system side the penetration of water, sand, dust, andexhaust gas must be avoided.
- When operating under tropical conditions the air flowmust be conveyed directly to the turbocharger.
- The temperature at turbocharger filter should not fall be-low + 10 °C.
- In cold areas warming up of the air in the engine roommust be ensured.
Air intake from outside: - The intake air duct is to be provided with a filter. Penetra-tion of water, sand, dust and exhaust gas must beavoided.
- Connection to the turbocharger is to be established via anexpansion joint (to be supplied by the yard). For this pur-pose the turbocharger will be equipped with a connectionsocket.
- At temperatures below + 10 °C the Caterpillar Motoren/Application Engineering must be consulted.
- The max pressure loss (incl. silencer and exhaust gasboiler) of 30 mbar is applicable as value for the total flowresistance of plants with separate intake air filter!
Radiated heat: see technical dataTo dissipate the radiated heat a slight and evenly distributedair current is to be led along the engine exhaust gas mani-fold starting from the turbocharger.
m
48 M 25 C Generator Set
17. Exhaust system
Position of exhaust gas nozzle: A nozzle position of 0, 30, 45, 60 and 90° is possible.The exhaust outlet of the turbocharger has a fixed positionof 45°.Transition pieces for outlets of 0, 30, 60 and 90° areavailable.
Exhaust compensator:
Design of the pipe cross-section: The pressure loss is to be minimized in order to optimize fuelconsumption and thermal load of the engine.
Max. flow velocity: 40 m/s (guide value).
Max pressure loss (incl. silencer and exhaust gas boiler):30 mbar(lower values will reduce thermal load of the engine).
The aforesaid value is also applicable as value for the totalflow resistance of plants with separate intake air filter!
Notes regarding installation: - Arrangement of the first expansion joint directly on theexhaust gas nozzle
- Arrangement of the first fixed point in the conduit directlyafter the expansion joint
- Drain opening to be provided (protection of turbochargerand engine against water)
- Each engine requires an exhaust gas pipe (one commonpipe for several engines is not permissible).
If it should be impossible to use the standard transitionpiece supplied by Caterpillar Motoren, the weight of thetransition piece manufactured by the shipyard must not ex-ceed the weight of the standard transition piece. A drawingincluding the weight will then have to be submitted ap-proval.
Diameter DN Length [mm] Weight [kg]
6 M 25 C 500 360 42
8/9 M 25 C 600 450 76
m
49M 25 C Generator Set
17. Exhaust system
t = Exhaust gas temperature (°C)G = Exhaust gas massflow (kg/h)Δp = Resistance/m pipe length (mm WC/m)d = Inner pipe diameter (mm)w = Gas velocity (m/s)l = Straight pipe length (m)L' = Spare pipe length of 90° bent pipe (m)L = Effective substitute pipe length (m)ΔPg = Total resistance (mm WC)
Example (based on diagram data A to E):t = 335 °C, G = 25000 kg/hl = 15 m straight pipelength, d = 700 mm3 off 90° bend R/d = 1.51 off 45° bend R/d = 1.5ΔPg = ?
Δp = 0.83 mm WC/mL' = 3 · 11 m + 5.5 mL = l + L' = 15 m + 38.5 m = 53.5 mΔPg = Δp · L = 0.83 mm WC/m · 53.5 m = 44.4 mm WC
Resistance in exhaust gas piping
m
50 M 25 C Generator Set
17. Exhaust system
0.031 0.063 0.125 0.25 0.5 1 2 4 8 f [kHz]
160
150
140
130
120
110
100
140 140 139135
133 132 131126
123
0.031 0.063 0.125 0.25 0.5 1 2 4 8 f [kHz]
160
150
140
130
120
110
100
140 139 139134
133 132 130125
122
Exhaust sound power level Lw not attenuated [1 x 1 m from open pipe]The noise measurements are made with a probe inside the exhaust pipe.
Tolerance + 2 dB
LwOct [dB](reference 10-12 W)
LwOct [dB](reference 10-12 W)
LwOct [dB](reference 10-12 W)
6 M 25 C (1900 kW/720 min-1, 1980 kW/750 rpm)
9 M 25 C (2850 kW/720 min-1, 2970 kW/750 rpm)
8 M 25 C (2540 kW/720 min-1, 2640 kW/750 rpm)
0.031 0.063 0.125 0.25 0.5 1 2 4 8 f [kHz]
160
150
140
130
120
110
100
139137 138
132 132 130 129
122 119
m
51M 25 C Generator Set
17. Exhaust system
Silencer: Design according to the absorbtion principle with wide-band attenuation over a great frequency range and lowpressure loss due to straight direction of flow. Sound ab-sorbing filling consisting of resistant mineral wool.
Sound level reduction 25 dB(A), alternatively 35 dB(A).Max. permissible flow velocity 40 m/s.
Silencer with spark arrester: Soot separation by means of a swirl device (particles arespun towards the outside and separated in the collectingchamber). Sound level reduction 25 dB(A) or 35 dB(A). Max.permissible flow velocity 40 m/s.
Silencers are to be insulated by the yard. Foundation brack-ets are provided as an option.
m
52 M 25 C Generator Set
17. Exhaust system
Silencer/Spark arrestor and silencer: Installation: vertical/horizontalFlange according to DIN 86044Counterflanges, screws and gaskets are included, withoutsupports and insulation
Silencer
Spark arrestor and silencer
Attenuation 25 dB (A) 35 dB (A)
DN D B L kg L kg
6 M 25 C 500 950 588 3185 710 3940 750
8/9 M 25 C 600 1100 659 3760 1100 4760 1300
Exhaust gas boiler: Each engine should have a separate exhaust gas boiler. Al-ternatively, a common boiler with separate gas sections foreach engine is acceptable.
Particularly when exhaust gas boilers are installed attentionmust be paid not to exceed the maximum recommendedback pressure.
m
53M 25 C Generator Set
17. Exhaust system
Cleaning the turbocharger compressor: The components for cleaning (dosing vessel, pipes, shut-offvalve) are engine mounted.
Water is fed before compressor wheel via injection pipesduring full load operation every 24 to 48 hours.
Cleaning the turbine blade andnozzle ring: At heavy fuel operation only.
The cleaning is carried out with clean fresh water "wetcleaning" during low load operation at regular intervals, de-pending on the fuel quality, 250 to 500 hours.
Duration of the cleaning period is approx. 20 minutes. Freshwater of 1.5 bar is required.
During cleaning the water drain should be checked. There-fore the shipyard has to install a funnel after connectionpoint C36.
Water flow[l/min]
Injection time[min]
6 - 18 15 - 20
C36 Drain, DN 25
C42 Fresh water supply,DN 16,with quick coupling device
Dirty water tank
m
54 M 25 C Generator Set
18. Air borne sound power level
The airborne noise of the engines is measured as a sound power level according to EN ISO 9614-2/Accuracy class 3.
Tolerance + 2 dB
LwOct [dB](reference 10-12 W)
LwOct [dB](reference 10-12 W)
LwOct [dB](reference 10-12 W)
6 M 25C (1900 kW/720 rpm, 1980 kW/750 rpm)
9 M 25 C (2850 kW/720 rpm, 2970 kW/750 rpm)
8 M 25 C (2540 kW/720 rpm, 2640 kW/750 rpm)
111
105108
111112
117
111
95
100
105
110
115
120
125
0.063 0.125 0.25 0.5 1 2 4 [kHz]
115 110112
113113
117
116
95
100
105
110
115
120
125
0.063 0.125 0.25 0.5 1 2 4 [kHz]
116 111113
114
113
118120
95
100
105
110
115
120
125
0.063 0.125 0.25 0.5 1 2 4 [kHz]
m
55M 25 C Generator Set
Gensets have to be resiliently mounted.
This provides an activ insulation against forces generated by the engine as well as protection againstvibration from rigidly mounted main engines.
The ship's foundation does not require machining. Unevenness is to be compensated by weldingplates and shims (to be provided by the shipyard).
Major components:- Bonded rubber rails for active insulation of dynamic engine forces- Flexible pipe connection for all media- Side stoppers, see foundation plan- Axial stoppers, see foundation plan- Shims and welding plates, see foundation plan
Details are shown on binding installation drawings. No. of major components:
19. FoundationResilient mounting
Bondedrubber rails*
Side stoppers
Axial stoppers
6 M 25 C 16 4 4
8 M 25 C 20 4 4
9 M 25 C 22 4 4
* Dimension [mm]L x W x H = 440 x 150 x 80Weight 16 kg
Structure borne sound level Lv, expected (measured in the test cell)
Lv Oct [dB](reference5*10-8 m/s)
46
707378
81858687
94
90
51
4647
51
60596664
20
30
40
50
60
70
80
90
100
110
0.031 0.063 0.125 0.25 0.5 1 2 4 8Frequency [kHz]
above
below
m
56 M 25 C Generator Set
19. FoundationFoundation plan
1) To be supplied by the yard
The genset will sag approx. 3.5 mm once thejacks have been removed.Recommendations for erection/adjustment ac-cording to binding installation drawings.
m
57M 25 C Generator Set
20. Control and monitoring system
Engine control panel
m
58 M 25 C Generator Set
20. Control and monitoring system
Genset control
m
59M 25 C Generator Set
20. Control and monitoring system
Engine monitoring
m
60 M 25 C Generator Set
20. Control and monitoring system
Monitoring: M 25 C aux. genset / DE-drive
SensorMeasur.-point
Monitoring point Abbrev. Action
Fitted Separate
Remarks
1105 Luboil pressure PAL OA A
1106 Luboil pressure PALL OAMS
B
1112 Luboil differential pressure selfcleaning filter
PDAH OA B
1142 Luboil pressure prelubrication PL B Starting interlock
1202 Luboil temperature engine inlet
TAH OA A
1251 Smoke concentration crankcase
QAH OA B above 2200 kW 1 device f. 1251+1253
1253 Smoke concentration crankcase
QAHOAMS
Babove 2200 kW 1 device f. 1251+1253
1311 Luboil level sump tank LAL OA B
2102 FW pressure high temp. circuit engine inlet
PAL OA A
2103 FW pressure high temp. circuit engine inlet
PALL OAMS
B For DE-drive only
2112 FW pressure low temp. circuit charge air cooler inlet
PAL OA A
2211 FW temp. high temp. circuit engine outlet
TAH OA A
2212 FW temp. high temp. circuit engine outlet
TAHH OAMS
B
2229 Fresh water temp. low temp. circuit
TI A
2321 Oil ingress in fresh water cooler outlet
QAH OA B1 Option For DE-drive only
5102 Fuel oil pressure engine inlet
PAL OA A
5105 Fuel oil pressure pressure pump
PAL OA B* Starting stand-by pump from pump control
5111 Fuel oil differential pressure before and after filter
PDAH OA B
5112 Fuel oil differential pressure before and after autom. filter
PDAH OA B*
5115 Fuel oil differential pressure circulating pump
PDAL OA B* Starting stand-by pump from pump control
* located in the fuel pressure system
m
61M 25 C Generator Set
20. Control and monitoring system
SensorMeasur.-point
Monitoring point Abbrev. Action
Fitted Separate
Remarks
5116 Fuel oil differential pressure before and after circulating pump
PDAL OA B*
5201 Fuel oil temperature engine inlet
TAL OA A 1 Sensor f. 5201+5202
5202 Fuel oil temperature engine inlet
TAH OA A 1 Sensor f. 5201+5202
5251 Fuel oil viscosity engine inlet
VAH OA A* 1 Sensor f. 5251, 5252 + (5253 DICARE if available)
5252 Fuel oil viscosity engine inlet
VAL OA A* 1 Sensor f. 5251, 5252 + (5253 DICARE if available)
5301 Level of leak fuel LAH OA B
5333 Fuel level mixing tank LAL OA B*
6101 Starting air pressure engine inlet
PAL OA A
6105 Shut down air pressure on engine
PAL OA B
7201 Charge air temperature engine inlet
TAH OA A
7301 Water in charge air manifold QAH OA B
8211 8221
Exhaust gas temp. per cyl./ and after turbocharger
T OA A Only thermocouples Option for aux. genset
8221 Exhaust temperature after turbocharger
TAH OA A
8231 Exhaust temperature before turbocharger
TAHTAHH
OAMS
A Option for aux. genset
9404 Engine overspeed S OAMS
B
9405 Engine speed stop starting air
S B
9409 Working hour meter/engine S B
9419 Engine speed NI A
9503 Stop lever in pos. operation S B Genset ready for operation
9561 Barring gear engaged S B Start interlock
9601 Electronic units/terminal point X1/voltage failure
S OA B
9611 RPM switch/voltage failure/ wire break
S OA B
Monitoring: M 25 C aux. genset / DE-drive
* located in the fuel pressure system
m
62 M 25 C Generator Set
20. Control and monitoring system
Abbreviations
B = Binary sensor OA = Visual and audible alarmA = Analogue sensor AD = Autom. speed/load reduction
MS = Autom. engine stopLAH = Level alarm high QA = Measurement alarmLAL = Level alarm low QAH = Measurement alarm highNI = Speed indication S = SpeedP = Pressure TAH = Temperature alarm highPAL = Pressure alarm low TAHH = Temperature alarm high highPALL = Pressure alarm low low TAL = Temperature alarm lowPDAH = Pressure difference alarm high VAH = Viscosity alarm highPDAL = Pressure difference alarm low VAL = Viscosity alarm low
Sensors for DICARE see item 21
SensorMeasur.-point
Monitoring point Abbrev. Action
Fitted Separate
Remarks
9615 Failure electronic governor S OA B With electronic governor only
9616 Failure electronic governor S OAMS
B With electronic governor only
9622 Exhaust gas temp. average equipment, voltage failure
S OA B Option for aux. Genset
9631 Crankcase oil mist detector voltage, lens/lamp
QA OA B If provided
9751 Temperature controller voltage failure
OA B Dependent from system
9761 Viscosity control, voltage failure
OA B Dependent from system
9771 Freshwater preheater, voltage failure
OA B Dependent from system
9775 Fuel oil preheater, voltage failure
OA B Dependent from system
Monitoring: M 25 C aux. genset / DE-drive
Option for DE-drive only: Modbus RTU connection to alarm system
m
63M 25 C Generator Set
20. Control and monitoring system
Local and remote indicatorsRemote indication interfacing
* no
t Cat
erpi
llar M
otor
en s
uppl
y
mA
VΩ
mV
mA
V
Sens
or S
igna
ls fr
om th
een
gine
RPM
sw
itch
unit
Anal
og-m
onito
ring
equi
pmen
t *
Disp
lay
(mA)
Rem
ote
indi
cato
rop
tion
Turb
ocha
rger
spee
dop
tion
Rem
ote
indi
cato
ren
gine
spe
edop
tion
Mon
itor
*
Sign
al ty
pe4-
20 m
A
0 - 10 V
0 - 10 V
Indi
cato
rs
At t
he e
ngin
e Re
mot
e 96
x 9
6Fu
el te
mpe
ratu
re a
t eng
ine
inle
t ⊗
Diffe
rent
ial p
ress
ure
fuel
filte
r
Mea
n in
ject
ion
pum
p ra
ck p
ositi
on
⊗
Lubo
il te
mpe
ratu
re a
t eng
ine
inle
t
Diffe
rent
ial p
ress
ure
lubo
il fil
ter
Fr
eshw
ater
tem
pera
ture
at e
ngin
e in
let H
T
Fres
hwat
er te
mpe
ratu
re a
t eng
ine
outle
t HT
⊗
Fres
hwat
er te
mpe
ratu
re L
T ⊗
Fr
eshw
ater
tem
pera
ture
bef
ore
inte
rcoo
ler
Fr
eshw
ater
tem
pera
ture
afte
r int
erco
oler
Char
ge a
ir te
mpe
ratu
re b
efor
e in
terc
oole
r 3)
Char
ge a
ir te
mpe
ratu
re b
efor
e en
gine
⊗
Ex
haus
t gas
tem
pera
ture
afte
r cyl
inde
r 3)
Exha
ust g
as te
mpe
ratu
re b
efor
e/af
ter t
urbo
char
ger 3)
G
auge
boa
rd (f
itted
on
engi
ne)
Fuel
pre
ssur
e ⊗
Lubo
il pr
essu
re
⊗
Fres
hwat
er p
ress
ure
HT
⊗
Fres
hwat
er p
ress
ure
LT
⊗
Star
t air
pres
sure
⊗
Ch
arge
air
pres
sure
afte
r int
erco
oler
⊗
Sh
ut d
own
air p
ress
ure
En
gine
spe
ed
⊗1)
Char
ge a
ir te
mpe
ratu
re b
efor
e in
terc
oole
r 4)
Exha
ust g
as te
mpe
ratu
re a
fter c
ylin
der 4)
Exha
ust g
as te
mpe
ratu
re b
efor
e/af
ter t
urbo
char
ger 4)
⊗2)
1) A
ltern
ativ
ely
144
x 14
4 2) O
nly
288
x 14
4, n
ot w
ith D
ICAR
E ON
-LIN
E av
aila
ble
3) O
nly
if ex
haus
t gas
tem
pera
ture
mon
itorin
g is
not
prov
ided
4) O
nly
if ex
haus
t gas
tem
pera
ture
mon
itorin
g is
pr
ovid
ed
⊗ O
ptio
n
m
64 M 25 C Generator Set
20. Control and monitoring system
Protection system Operating voltage: 24 V DCType of protection: IP 55
Protection against false polarity and transient protection provided.
Designed for: 3 starting interlock inputs6 automatic stop inputs1 manual stop input
The input and output devices are monitored for wire break.
Rpm switch unit system Designed for:3 rpm switching pointsAnalogue outputs for speed:1 x 0-10 V, 1 x 4-20 mA, 1 x frequency
only Genset only DE
m
65M 25 C Generator Set
20. Control and monitoring systemProtection system
Rpm switch unit
m
66 M 25 C Generator Set
20. Control and monitoring system
Start/stop logic
m
67M 25 C Generator Set
21. Diagnostic system DICARE
DICARE is an efficient expert system which collects permanently the actual operating data of the en-gine, scales them to ISO condition, compares them with the nominal values and evaluates all detecteddeviations from these nominal values. Out of this comparison a printable diagnosis results which easecondition based maintenace considerably.
The sensor equipment of the engine laid out for the "on-line operation" with analogue transmitters viaa data converter feeds the PC with measured data on-line for evaluation and storing. Due to the auto-matically established history files trends can be made visible.
Benefits of DICARE:
• Early detection of wear.• Optimum operating condition due to clearly laid out display of deviating engines parameters.• Reduction of maintenance cost due to recognition of trends.• Longer service life of components due to display of comparison of actual vs. desired values.• Information about the engine condition by means of remote access possibilities.• Allows personnel and material planning by early, condition-based recognition of contamination or
wear.
Option: Installed in junction box
m
68 M 25 C Generator Set
21. Diagnostic system DICARE
Transmitter for DICARE ON-LINE M 25 C
= Transmitter from engine monitoring
LocationL = SeparateM = EngineDS = RPM switch system
Designation Transmitter Signal Meas. point no. CM
Location
Fuel viscosity 4 - 20 mA 5253 L
Fuel temperature after viscomat PT 100 5206 L
Fuel temperature at engine inlet PT 100 5201 M
Injection pump rack position 4 - 20 mA 9509 DS
Lube oil pressure 4 - 20 mA 1105 M
Lube oil temperature at engine inlet PT 100 1202 M
Freshwater pressure HT 4 - 20 mA 2102 M
Freshwater temperature at engine inlet HT PT 100 2201 M
Freshwater temperature at engine outlet HT PT 100 2211 M
Differential pressure charge air cooler 4 - 20 mA 7307 M
Intake air pressure 4 - 20 mA 6181 M
Intake air temperature before turbocharger PT 100 7206 M
Charge air pressure after intercooler 4 - 20 mA 7109 M
Charge air temperature before intercooler NiCrNi mV 7309 M
Charge air temperature at engine inlet PT 100 7201 M
Exhaust gas temperature for each cylinder and after turbocharger
NiCrNi mV 8211/8221 M
Exhaust gas temperature before turbocharger NiCrNi mV 8231 M
Engine speed 4 - 20 mA 9419 DS
Turbocharger speed 4 - 20 mA 9429 M
Service hour counter (manual input) Counter binary 9409 DS
m
69M 25 C Generator Set
22. Diesel engine management system DIMOS
DIMOS is a computer aided maintenance and spare part management system for Caterpillar Motorendiesel engines. The DIMOS-system will include a data base which is filled with information derivedfrom the operating instructions and the spares catalogue of your respective engine type. This systemenables to administration and check the following four major subjects:1. Maintenance2. Material management3. Statistics4. Budget control.
These four major subjects are provided with many internal connections, so that no double inputs arerequired. All you need for running the DIMOS-system is commercial PC hardware.
The advantages are evident:• Precise follow-up regarding the maintenance intervals as specified by Caterpillar Motoren. No
scheduled date will be forgotten and no history file will be missed.• Immediate access to maintenance and component information.• Quick and simple modification of data is possible at any time.• Extensive and permanently up-to-date decision documents for maintenance with precise updating
of terms.• A lot of paper work can be omitted, and this means a considerable saving of time.• This can be taken from the DIMOS databank as well as from the CD-Rom and the standard docu-
mentation.From various single information to an integrated system
DIMOS
Engine operatinginstructions
Engine spare partscatalogues
Maintenanceschedule
Maintenancejob cards
Maintenanceplanning
Work ordercreation
History andstatistics
Inventory andpurchase
O U T P U T
I N P U TDIMOS
Engine operatinginstructions
Engine spare partscatalogues
Maintenanceschedule
Maintenancejob cards
Maintenanceplanning
Work ordercreation
History andstatistics
Inventory andpurchase
O U T P U T
I N P U T
m
70 M 25 C Generator Set
23. Standard acceptance test run
In addition to that the following functional tests will be carried out:
- governor test- overspeed test- emergency shut-down via minimum oil pressure- start/stop via central engine control- starting trials up to a minimum air pressure of 10 bar- measurement of crank web deflection (cold/warm condition)
After the acceptance main running gear, camshaft drive and timing gear train will be inspectedthrough the opened covers. Individual inspection of special engine components such as piston orbearings is not intended, because such inspections are carried out by the classification societies atintervals on series engines.
Engine movement due to vibration referred to the global vibration characteristics of the engine:
The basis for assessing vibration severity are the guidelines ISO 10816-6.
According to these guidline the MaK engine will be assigned to vibration severity grade 28, class 5. Onthe engine block the following values will not be exceeded:
Displacement Seff < 0.448 mm f > 2 Hz < 10 HzVibration velocity Veff < 28.2 mm/s f > 10 Hz < 250 HzVibration acceleration aeff < 44.2 m/s2 f > 250 Hz < 1000 Hz
The acceptance test run of the complete genset is carried out on the testbed with customary equip-ment and auxiliaries using exclusively MDO and under the respective ambient conditions of thetestbed. During this test run the fuel rack will be blocked at the contractual output value. In case ofdeviations from the contractual ambient conditions the fuel consumption will be converted to standardreference conditions.
The engine will be run at the following load stages acc. to the rules of the classification societies. Afterreaching steady state condition of pressures and temperatures these will be recorded and registeredacc. to the form sheet of the acceptance test certificate:
Load [%] Duration [min] 25 30 50 30 85 30 100 60 110 30
- with puric ohmic load (cos ϕ = 1)- load application acc. to ISO 3046- without parallel operation
m
71M 25 C Generator Set
24. Engine International Air Pollution Prevention Certificate
The MARPOL Diplomatic Conference has agreed about a limitation of NOx emissions, referred to asAnnex VI to Marpol 73/78.
When testing the engine for NOx emissions, the reference fuel is Marine Diesel Oil (Distillate) and thetest is performed according to ISO 8178 test cycles:
D2: Auxiliary genset at 100 % speedE2: Diesel electric propulsion at 100 % speed
Subsequently, the NOx value has to be calculated using different weighting factors for different loadsthat have been corrected to ISO 8178 conditions.
An EIAPP (Engine International Air Pollution Prevention) certificate will be issued for each engineshowing that the engine complies with the regulation. At the time of writing, only an interim certificatecan be issued due to the regulation not yet in force.
According to the IMO regulations, a Technical File shall be made for each engine. This Technical Filecontains information about the components affecting NOx emissions, and each critical component ismarked with a special IMO number. Such critical components are injection nozzle, injection pump,camshaft, cylinder head, piston, connecting rod, charge air cooler and turbocharger. The allowablesetting values and parameters for running the engine are also specified in the Technical File.
The marked components can later, on-board the ship, be easily identified by the surveyor and thus anIAPP (International Air Pollution Prevention) certificate for the ship can be issued on basis of theEIAPP and the on-board inspection.
Output [%] 100 75 50 25 10
D2 weighting factor 0,20 0,50 0,15 0,15 -
E2 weighting factor 0,05 0,25 0,30 0,30 0,10
m
72 M 25 C Generator Set
25. Painting/Preservation
Inside preservation
N 576-3.3Up to 1 year, engine protected from moisture.- Main running gear and internal mechanics
Outside preservation
N 576-3.1 - Tectyl lightEuropeStorage in the open, protected from moisture, up to 1 year
Appearance of the engine:- Castings with red oxide antirust paint- Pipes and machined surfaces left as bare metal- Attached components with colours of the makers
N 576-3.2 - Tectyl heavy-dutyOverseasStorage in the open, protected from moisture, up to 1 year
Appearance of the engine:- Castings with red oxide antirust paint- Pipes and machined surfaces left as bare metal- Attached components with colours of the makers
N 576-4.1 - Clear VarnishClear varnish painting is applicable within Europe for land transportation with protection frommoisture. It is furthermore applicable for storage in a dry and tempered atmosphere.
Clear varnish painting is not permissible for:- Sea transportation of engines- Storage of engines in the open, even if they are covered with tarpaulin
VCI packaging as per N 576-5.2 is always required!Durability and effectiveness are dependent on proper packing, transportation, and storage, i.e. theengine must be protected from moisture, the VCI foil must not be torn or destroyed.Checks are to be carried out at regular intervals.If the above requirements are not met, all warranty claims in connection with corrosion damages shallbe excluded.
m
73M 25 C Generator Set
25. Painting/Preservation
Appearance of the engine:- Castings with red oxide antirust paint- Pipes and machined surfaces left as bare metal- Attached components with colours of the makers- Surfaces sealed with clear varnish- Bare metal surfaces with light preservation
N 576-4.3 - Painting- No VCI packaging:
Short-term storage in the open, protected from moisture, max. 4 weeks- With VCI packaging:
Storage in the open, protected from moisture, up to 1 year
Appearance of the engine:- Surfaces mostly painted with varnish- Bare metal surfaces provided with light or heavy-duty preservation
N 576-5.2 - VCI packagingStorage in the open, protected from moisture, up to 1 year.Applies for engines with painting as per application groups N 576-4.1 to -4.4Does not apply for engines with Tectyl outside preservation as per application groups N 576-3.1 and -3.2.
Description:- Engine completely wrapped in VCI air cushion foil, with inserted VCI-impregnated flexible
PU-foam mats.
N 576-5.2 Suppl. 1 - Information panel for VCI preservation and inspectionApplies for all engines with VCI packaging as per application group N 576-5.2
Description:- This panel provides information on the kind of initial preservation and instructions for inspection.- Arranged on the transport frame on each side so as to be easily visible.
N 576-6.1 - Corrosion Protection Period, Check, and RepreservationApplies to all engines with inside and outside storage
Description:- Definitions of corrosion protection period, check, and represervation
m
74 M 25 C Generator Set
26. Lifting of gensets
For the purpose of transport the genset is equipped with a lifting device which shall remain the prop-erty of Caterpillar Motoren. It has to be returned in a useable condition free of charge.
m
75M 25 C Generator Set
27. Engine parts
Cylinder head, Weight 240 kg
Connecting rod, Weight 79 kg Piston, Weight 46 kg
Cylinder liner, Weight 162 kg
© 2008 Caterpillar All Rights Reserved. CAT, CATERPILLAR, their respective logos,„Caterpillar Yellow“ and the POWER EDGE trade dress, as well as corporate identityused herein, are trademarks of Caterpillar and may not be used without permission
Europe, Africa, Middle East
Caterpillar MarinePower SystemsNeumühlen 922763 Hamburg/Germany
Phone: +49 40 2380-3000Telefax: +49 40 2380-3535
Caterpillar Marine Asia Pacific Pte Ltd14 Tractor RoadSingapore 627973/SingaporePhone: +65 68287-600Telefax: +65 68287-624
Caterpillar Marine Trading(Shanghai) Co., Ltd.25/F, Caterpillar Marine Center1319, Yan’an West Road200050 Shanghai/P. R.ChinaPhone: +86 21 6226 2200Telefax: +86 21 6226 4500
Asia PacificHeadquarters
Caterpillar MarinePower SystemsNeumühlen 922763 Hamburg/Germany
Phone: +49 40 2380-3000Telefax: +49 40 2380-3535
For more information please visit our website:www.cat-marine.com or www.mak-global.com
Caterpillar Marine Power SystemsAmericas
MaK Americas Inc.
3450 Executive WayMiramar Park of CommerceMiramar, FL. 33025/USAPhone: +1 954 447 71 00Telefax: +1 954 447 71 15
Subject to change without notice.Leaflet No. 225 · 07.08 · e · L+S · VM3