MTU 20 V 4000 M93 User manual

Operating Instructions
Diesel Engine
20 V 4000 M93 x
MS150048/04E

Engine model kW/cyl. Application group
20V4000M93 195 kW/cyl. 1 DS, continuous operation, variable, low load
factors
20V4000M93L 215 kW/cyl. 1 DS, continuous operation, variable, low load
factors
Table 1: Applicability
Printed in Germany
© 2013 Copyright MTU Friedrichshafen GmbH
This Publication is protected by copyright and may not be used in any way whether in whole or in part without the prior
written permission of MTU Friedrichshafen GmbH. This restriction also applies to copyright, distribution, translation, mi-
crofilming and storage or processing on electronic systems including data bases and online services.
This handbook is provided for use by maintenance and operating personnel in order to avoid malfunctions or damage
during operation.
Subject to alterations and amendments.

Table of Contents
1 Safety
1.1 Important provisions for all products 5
1.2 Personnel and organizational requirements 6
1.3 Safety regulations for startup and operation 7
1.4 Safety regulations for maintenance and
repair work 8
1.5 Fire prevention and environmental
protection, fluids and lubricants, auxiliary
materials 11
1.6 Standards for safety notices in the text 13
1.7 Transport 14
1.8 Crankshaft transport locking device 15
2 General Information
2.1 Engine side and cylinder designations 18
2.2 Product description 19
2.3 Engine overview 29
2.4 Sensors and actuators – Overview 30
2.5 Engine wiring harness – Overview 35
3 Technical Data
3.1 20V 4000 M93 engine data: IMO, engine-
mounted heat exchanger, intercooler made
of copper-based alloy 41
3.2 20V 4000 M93 engine data: EPA 2, engine-
mounted heat exchanger 44
3.3 20V 4000 M93L engine data: IMO, engine-
mounted heat exchanger, intercooler made
of copper-based alloy 47
3.4 20V 4000 M93L engine data: EPA 2, engine-
mounted heat exchanger 50
3.5 Engine – Main dimensions 53
3.6 Firing order 54
4 Operation
4.1 Controls 55
4.2 Putting the engine into operation after
extended out-of-service periods (>3 months) 56
4.3 Putting the engine into operation after
scheduled out-of-service-period 57
4.4 Starting the engine 58
4.5 Operational checks 59
4.6 Tasks after extended out-of-service periods
(>3 weeks) 60
4.7 Checks prior to start-up 61
4.8 Fuel treatment system – Putting into
operation 62
4.9 Fuel treatment system – Switching on 65
4.10 Engine emergency stop at BlueLine
automation system (control stand) 66
4.11 Coupling – Engaging from LOP 67
4.12 Coupling – Disengaging from LOP 68
4.13 Waterjet – Flushing from LOP (optional) 69
4.14 Stopping the engine from LOP 70
4.15 Stopping the engine at the BlueLine
automation system (control stand) 71
4.16 Emergency stop from LOP 72
4.17 After stopping the engine 73
4.18 Fuel treatment system – Shutdown 74
4.19 Plant – Cleaning 75
5 Maintenance
5.1 Maintenance schedule task reference table
[QL1] 76
6 Troubleshooting
6.1 Fuel treatment system – Troubleshooting 78
6.2 Troubleshooting 79
6.3 ADEC (ECU 7) fault codes for Series 4000
engines, marine application 82
6.4 ADEC engine governor – Fault codes 83
7 Task Description
7.1 Engine 109
7.1.1 Engine – Barring manually 109
7.1.2 Engine – Barring with starting system 110
7.2 Cylinder Liner 111
7.2.1 Cylinder liner – Endoscopic examination 111
7.2.2 Instructions and comments on endoscopic and
visual examination of cylinder liners 113
7.3 Valve Drive 115
7.3.1 Valve gear – Lubrication 115
7.3.2 Valve clearance – Check and adjustment 116
7.3.3 Cylinder head cover – Removal and
installation 120
7.4 Injection Pump / HP Pump 121
7.4.1 HP pump – Filling with engine oil 121
7.4.2 HP pump – Relief bore check 122
7.5 Injection Valve / Injector 123
7.5.1 Injector – Replacement 123
7.5.2 Injector – Removal and installation 124
7.6 Fuel Filter 129
7.6.1 Fuel filter – Replacement 129
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7.6.2 Fuel prefilter – Differential pressure gauge
check and adjustment 131
7.6.3 Fuel prefilter – Draining 132
7.6.4 Fuel prefilter – Flushing 133
7.6.5 Fuel prefilter – Filter element replacement 135
7.7 Exhaust Turbocharger 137
7.7.1 Compressor wheel – Cleaning 137
7.8 Charge-Air Cooling 139
7.8.1 Intercooler – Check water drain for coolant
discharge and obstruction 139
7.9 Air Filter 140
7.9.1 Air filter – Replacement 140
7.9.2 Air filter – Removal and installation 141
7.10 Air Intake 142
7.10.1 Service indicator – Signal ring position check
(optional) 142
7.11 Starting Equipment 143
7.11.1 Starter – Condition check 143
7.12 Lube Oil System, Lube Oil Circuit 144
7.12.1 Engine oil – Level check 144
7.12.2 Engine oil – Change 145
7.12.3 Engine oil – Sample extraction and analysis 147
7.13 Oil Filtration / Cooling 148
7.13.1 Automatic oil filter – Oil filter candles
replacement 148
7.13.2 Oil indicator filter – Cleaning and check 151
7.13.3 Centrifugal oil filter – Cleaning and filter-
sleeve replacement 153
7.14 Coolant Circuit, General, High-Temperature
Circuit 155
7.14.1 Ventilation points 155
7.14.2 Engine coolant – Level check 156
7.14.3 Engine coolant – Change 157
7.14.4 Engine coolant draining 158
7.14.5 Engine coolant – Filling 159
7.14.6 Engine coolant pump – Relief bore check 163
7.14.7 Engine coolant – Sample extraction and
analysis 164
7.15 Raw Water Pump with Connections 165
7.15.1 Raw water pump – Relief bore check 165
7.16 Battery-Charging Generator 166
7.16.1 Battery-charging generator drive – Coupling
condition check 166
7.17 Engine Mounting / Support 167
7.17.1 Engine mounting – Check 167
7.18 Fuel Supply System 168
7.18.1 Water drain valve – Check 168
7.18.2 Differential pressure gauge – Check 169
7.18.3 Water level probe (3-in-1 rod electrode) –
Check 170
7.18.4 Pump capacity – Check 171
7.18.5 Coalescer filter element – Replacement 172
7.19 Wiring (General) for Engine/Gearbox/Unit 174
7.19.1 Engine wiring – Check 174
7.20 Accessories for (Electronic) Engine
Governor / Control System 175
7.20.1 CDC parameters – Reset with DiaSys® 175
7.20.2 EMU and connectors – Cleaning 176
7.20.3 Limit switch for start interlock ‒ Check 177
7.20.4 Engine governor and connectors – Cleaning 178
7.20.5 Engine Monitoring Unit EMU 8 – Plug
connections check 179
7.20.6 Interface module plug connections – Check 180
7.20.7 Engine governor plug connections – Check 181
7.20.8 ECU 7 engine governor – Removal and
installation 182
7.20.9 EMU 8 – Removal and installation 183
7.20.10 Engine Interface Module EIM – Removal and
installation 184
7.20.11 Diagnostic features of EIM 185
7.21 Emergency Instrumentation (Local
Operating Panel) 188
7.21.1 LOP and connectors – Cleaning 188
8 Appendix A
8.1 Abbreviations 189
8.2 MTU contact persons/service partners 191
9 Appendix B
9.1 Special Tools 192
9.2 Index 198
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1 Safety
1.1 Important provisions for all products
Nameplate
The product is identified by nameplate, model designation or serial number and must match with the
information on the title page of this manual.
Nameplate, model designation or serial number can be found on the product.
General information
This product may pose a risk of injury or damage in the following cases:
• Incorrect use
• Operation, maintenance and repair by unqualified personnel
• Modifications or conversions
• Noncompliance with the safety instructions and warning notices
Correct use
The product is intended exclusively for the application specified in the contract or defined at the time of
delivery.
This means that the equipment must be operated:
• Within the permissible operating parameters in accordance with the (→ product data)
• With fluids and lubricants approved by the manufacturer in accordance with the (→ Fluids and Lubri-
cants Specifications of the manufacturer)
• With spare parts approved by the manufacturer in accordance with the (→ applicable Spare Parts
Catalog)
• In the original as-delivered configuration or in a configuration approved by the manufacturer in writ-
ing (including engine control/parameters)
• In compliance with all safety instructions and in adherence to all warning notices in this manual
• In accordance with the maintenance requirements over the entire service life of the product (→ Main-
tenance Schedule)
• In compliance with the maintenance and repair instructions contained in this manual, in particular
with regard to the specified tightening torques
• With the exclusive use of technical personnel trained in commissioning, operation, maintenance and
repair
• By contracting only workshops authorized by the manufacturer to carry out repair and overhaul
Any other use is considered improper use and increases the risk of personnel injury or material damage
in product operation.The manufacturer will accept no liability for such damage.
Modifications or conversions
Unauthorized modifications to the product compromise safety.
The manufacturer will accept no liability or warranty claims for any damage caused by unauthorized
modifications or conversions.
Spare parts
Only genuine spare parts must be used to replace components or assemblies.
The manufacturer will accept no liability or warranty claims for any damage caused by the use of other
spare parts.
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1.2 Personnel and organizational requirements
Organizational measures of the operator
This manual must be issued to all personnel involved in operation, maintenance, repair or transporta-
tion.
Keep this manual handy in the vicinity of the product such that it is accessible to operating, mainte-
nance, repair and transport personnel at all times.
Use this manual as a basis for instructing personnel on product operation and repair, whereby the safe-
ty-relevant instructions, in particular, must be read and understood.
This is particularly important in the case of personnel who only occasionally perform work on or around
the product. This personnel must be instructed repeatedly.
Personnel requirements
All work on the product shall be carried out by trained and qualified personnel only.
•Training at the Training Center of the manufacturer
• Qualified personnel specialized in mechanical and plant engineering
The operator must define the responsibilities of the personnel involved in operation, maintenance, re-
pair and transport.
Working clothes and personal protective equipment
Wear proper protective clothing for all work.
When working, always wear the necessary personal protective equipment (e.g. ear protectors, protec-
tive gloves, goggles, breathing protection). Observe the information on personal protective equipment
in the respective activity description.
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1.3 Safety regulations for startup and operation
Safety regulations for startup
Install the product correctly and carry out acceptance in accordance the manufacturer's specifications
before putting the product into service.
Before the product is put into operation for the first time, all official authorizations must be available
and commissioning preconditions met.
When putting the product into operation, always ensure
•that all maintenance and repair work has been completed;
• that all loose parts have been removed from rotating machine components;
• that no-one is present in the danger zone of rotating machine components.
Immediately after putting the product into operation, make sure that all control and display instruments
as well as the signaling and alarm systems work properly.
Safety regulations for equipment operation
The operator must be familiar with the control and display elements.
The operator must be familiar with the consequences of any operations performed.
During operation, the display instruments and monitoring units must be permanently observed with re-
gard to present operating status, violation of limit values and warning or alarm messages.
Malfunctions and emergency stop
The procedures for cases of emergency, in particular, emergency stop, must be practiced regularly.
The following steps must be taken if a malfunction of the system is recognized or reported by the sys-
tem:
• Inform supervisor(s) in charge,
• Analyze the message,
• If required, carry out emergency operations e.g. emergency stop.
Operation
The following conditions must be fulfilled before starting the product:
• Wear ear protection.
• Ensure that the engine room is well ventilated.
• Do not inhale the exhaust gases of the product.
• Ensure that the exhaust system is free of leaks and that the gases are discharged to atmosphere.
• Mop up any leaked or spilt fluids and lubricants immediately or soak up with a suitable binding agent.
• Protect battery terminals, generator terminals or cables against accidental contact.
Operation of electrical equipment
When electrical equipment is in operation, certain components of these appliances are electrically live.
Observe the safety instructions for these devices.
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1.4 Safety regulations for maintenance and repair work
Safety regulations prior to maintenance and repair work
Have maintenance or repair work carried out by qualified and authorized personnel only.
Allow the product to cool down to less than 50°C before starting maintenance work (risk of explosion
of oil vapors, fluids and lubricants, risk of burning).
Before starting work, relieve pressure in systems and compressed-air lines which are to be opened. Use
suitable containers of adequate capacity to catch fluids and lubricants.
When changing the oil or working on the fuel system, ensure that the engine room is adequately venti-
lated.
Never carry out maintenance and repair work with the product in operation.
Carry out function checks on a product in operation only if expressly permitted to do so.
Secure the product against unintentional starting, e.g. with start interlock.
Attach "Do not operate" sign in the operating area or to control equipment.
Disconnect the battery. Lock circuit breakers.
Close the main valve on the compressed-air system and vent the compressed-air line when pneumatic
starters are fitted.
Disconnect the control equipment from the product.
The following additional instructions apply to starters with beryllium copper pinion:
•Breathing protection of filter class P2 must be applied during maintenance work to avoid health haz-
ards caused by the beryllium-containing pinion. Do not blow out the interior of the flywheel housing
or the starter with compressed air. Clean the flywheel housing inside with a class H dust extraction
device as an additional measure.
Safety regulations during maintenance and repair work
Take special care when removing ventilation or plug screws from the product. Cover the screw or plug
with a rag to prevent fluids escaping under pressure.
Take care when draining hot fluids and lubricants (risk of burning).
Use only proper and calibrated tools. Observe the specified tightening torques during assembly or dis-
assembly.
Carry out work only on assemblies or plants which are properly secured.
Never use lines for climbing.
Keep fuel injection lines and connections clean.
Always seal connections with caps or covers if a line is removed or opened.
Take care not to damage lines, in particular fuel lines, during maintenance and repair work.
Ensure that all retainers and dampers are installed correctly.
Ensure that all fuel injection and pressurized oil lines are installed with enough clearance to prevent
contact with other components. Do not place fuel or oil lines near hot components.
Do not touch elastomeric seals if they have carbonized or resinous appearance unless hands are prop-
erly protected.
Note cooling time for components which are heated for installation or removal (risk of burning).
When working high on the equipment, always use suitable ladders and work platforms. Make sure com-
ponents or assemblies are placed on stable surfaces.
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Ensure particular cleanness during maintenance and repair work on the product. After completion of
maintenance and repair work, make sure that no loose objects are in/on the product (e.g. cloths and
cable ties)
Safety regulations after completion of maintenance and repair work
Before barring, make sure that nobody is standing in the danger zone of the product.
Check that all guards have been reinstalled and that all tools and loose parts have been removed after
working on the product (in particular, the barring tool).
Welding work
Welding operations on the product or mounted units are not permitted. Cover the product when weld-
ing in its vicinity.
Before starting welding work:
•Switch off the power supply master switch.
• Disconnect the battery.
• Separate the electrical ground of electronic equipment from the ground of the unit.
No other maintenance or repair work must be carried out in the vicinity of the product while welding is
going on. Risk of explosion or fire due to oil vapors and highly flammable fluids and lubricants.
Do not use product as ground terminal.
Never position the welding power supply cable adjacent to, or crossing wiring harnesses of the product.
The welding current may otherwise induce an interference voltage in the wiring harnesses which could
conceivably damage the electrical system.
Remove parts (e.g. exhaust pipes) which are to be welded from the product beforehand.
Hydraulic installation and removal
Check the function and safe operating condition of tools and fixtures to be used. Use only the specified
devices for hydraulic removal/installation procedures.
Observe the max. permissible push-on pressure specified for the equipment.
Do not attempt to bend or apply force to lines.
Before starting work, pay attention to the following:
• Vent the hydraulic installation/removal tool, the pumps and the lines at the relevant points for the
equipment to be used (e.g. open vent plugs, pump until bubble-free air emerges, close vent plugs).
• For hydraulic installation, screw on the tool with the piston retracted.
• For hydraulic removal, screw on the tool with the piston extended.
For a hydraulic installation/removal tool with central expansion pressure supply, screw spindle into
shaft end until correct sealing is established.
During hydraulic installation and removal, ensure that nobody is standing in the immediate vicinity of
the component to be installed/removed.
Working with batteries
Observe the safety instructions of the battery manufacturer when working with batteries.
Gases emanating from the battery are explosive. Avoid sparks and naked flames.
Do not allow electrolyte to come in contact with skin or clothing.
Wear protective clothing and protective gloves.
Never place tools on the battery.
Before connecting the cable to the battery, check the battery polarity.Battery pole reversal may lead to
injury through the sudden discharge of acid or bursting of the battery body.
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Working on electrical and electronic assemblies
Always obtain the permission of the person in charge before commencing maintenance and repair work
or switching off any part of the electronic system required to do so.
De-energize the appropriate areas prior to working on assemblies.
Do not damage cabling during removal work. When reinstalling ensure that wiring is not damaged dur-
ing operation by contact with sharp objects, by rubbing against other components or by a hot surface.
Do not secure cables on lines carrying fluids.
Do not use cable binders to secure cables.
Always use connector pliers to tighten union nuts on connectors.
Subject the device as well as the product to a function check on completion of all repair work. In partic-
ular, check the function of the engine emergency stop feature.
Store spare parts properly prior to replacement, i.e. protect them against moisture in particular. Pack
defective electronic components and assemblies in a suitable manner when dispatched for repair, i.e.
protected, in particular, against moisture and impact and wrapped in antistatic foil if necessary.
Working with laser equipment
When working with laser equipment, always wear special laser-protection goggles (hazard due to heavi-
ly focused radiation).
Laser equipment must be fitted with the protective devices necessary for safe operation according to
type and application.
For conducting light-beam procedures and measurement work, only the following laser devices must be
used:
•Laser devices of classes 1, 2 or 3A.
• Laser devices of class 3B, which have maximum output in the visible wavelength range (400 to 700
nm), a maximum output of 5 mW, and in which the beam axis and surface are designed to prevent
any risk to the eyes.
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1.5 Fire prevention and environmental protection, fluids and
lubricants, auxiliary materials
Fire prevention
Rectify any fuel or oil leaks immediately. Oil or fuel on hot components can cause fires – therefore al-
ways keep the product in a clean condition. Do not leave cloths saturated with fluids and lubricants on
the product. Do not store combustible materials near the product.
Do not carry out welding work on pipes and components carrying oil or fuel. Before welding, clean with
a nonflammable fluid.
When starting the engine with an external power source, connect the ground lead last and remove it
first. To avoid sparks in the vicinity of the battery, connect the ground lead from the external power
source to the ground lead of the engine or to the ground terminal of the starter.
Always keep suitable firefighting equipment (fire extinguishers) at hand and familiarize yourself with
their use.
Noise
Noise can lead to an increased risk of accidents if it makes it more difficult to hear audible signals,
warning calls or noises indicating danger.
Wear ear defenders in work areas with a sound pressure level in excess of 85dB (A).
Environmental protection and disposal
Modification or removal of any mechanical/electronic components or the installation of additional com-
ponents including the execution of calibration processes that might affect the emission characteristics
of the product are prohibited by emission regulations. Emission control units/systems may only be
maintained, exchanged or repaired if the components used for this purpose are approved by the manu-
facturer. Noncompliance with these guidelines will invalidate the design type approval issued by the
emissions regulation authorities. The manufacturer does not accept any liability for violations of the
emission regulations. The maintenance schedules of the manufacturer must be observed over the entire
life cycle of the product.
Dispose of used consumables and filters in accordance with local regulations.
Within the EU, batteries can be returned free of charge to the manufacturer where they will be properly
recycled.
Auxiliary materials, fluids and lubricants
The Fluids and Lubricants Specifications will be amended or supplemented as necessary. Prior to opera-
tion, make sure that the latest version is used. The latest version can be found on the website on the
"Technical Info" tab at http://www.mtu-online.com.
Consumable fluids and materials may also be hazardous or toxic. When using fluids, lubricants, consum-
ables and other chemical substances, follow the safety instructions that apply to the product. Take spe-
cial care when using hot, chilled or caustic substances. When using flammable materials, prevent them
coming into contact with ignition sources and do not smoke.
Used oil
Used oil contains combustion residues that are harmful to health.
Rub barrier cream into hands.
Wash hands after contact with used oil.
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Lead
•Adopt suitable measures to avoid the formation of lead dust.
• Switch on extraction system.
• When working with lead or pastes that contain lead, avoid direct contact with the skin. Do not inhale
lead vapors.
• Wash hands after contact with lead or lead-containing substances.
Compressed air
Observe special safety precautions when working with compressed air:
• Unauthorized use of compressed air, e.g. forcing flammable liquids (hazard class AI, AII and B) out of
containers, risks causing an explosion.
• Wear goggles when blowing dirt off components or blowing away swarf.
• Blowing compressed air into thin-walled containers (e.g. containers made of sheet metal, plastic or
glass) for drying purposes or to check for leaks risks bursting them.
• Pay special attention to the pressure in the compressed air system or pressure vessel.
• Assemblies or products to be connected must either be designed for that pressure, or, if the permis-
sible pressure is lower than the system pressure, a pressure reducing valve and safety valve (set to
the permissible pressure) must be connected between the assemblies/products and the system.
• Hose couplings and connections must be securely attached.
• Provide the snout of the air nozzle with a protective disk (e.g. rubber disk).
• First shut off compressed air lines before compressed air device is disconnected from the supply
line, or before device or tool is to be replaced.
• Carry out leak test in accordance with the specifications.
Paints and varnishes
• Observe the relevant safety data sheet for all materials.
• When painting in areas other than spray booths equipped with extractors, ensure good ventilation.
Make sure that neighboring work areas are not adversely affected.
• There must be no naked flames in the vicinity.
• No smoking.
• Observe fire prevention regulations.
• Always wear a mask providing protection against paint and solvent vapors.
Liquid nitrogen
• Observe the relevant safety data sheet for all materials.
• Store liquid nitrogen only in small quantities and always in regulation containers (without gas-tight
caps).
• Avoid body contact (eyes, hands).
• Wear protective clothing, protective gloves, closed shoes and safety goggles.
• Make sure that working area is well ventilated.
• Avoid knocking or jolting the containers, fixtures or workpieces in any way.
Acids/alkalis/urea solution (AdBlue, DEF)
• Observe the relevant safety data sheet for all materials.
• When working with acids and alkaline solutions, wear goggles or face mask, gloves and protective
clothing.
• Do not inhale vapors.
• If urea solution is swallowed, rinse out mouth and drink plenty of water.
• If spilled onto clothing, remove the affected clothing immediately.
• After contact with skin, rinse affected parts of the body with plenty of water.
• Rinse eyes immediately with eyedrops or clean tap water. Seek medical attention as soon as possi-
ble.
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1.6 Standards for safety notices in the text
DANGER In the event of immediate danger.
Consequences: Death, serious or permanent injury!
•Remedial action.
WARNING In the event of a situation involving potential danger.
Consequences: Death, serious or permanent injury!
•Remedial action.
CAUTION In the event of a situation involving potential danger.
Consequences: Minor or moderate injuries!
•Remedial action.
NOTICE In the event of a situation involving potentially adverse effects on the product.
Consequences: Material damage.
•Remedial action
• Additional product information
Safety notices
uThis manual with all safety instructions and safety notices must be issued to all personnel involved in
operation, maintenance, repair or transportation.
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1.7 Transport
Transport
Only use the lifting eyes provided to lift the engine.
The lifting eyes are designed for the transport of engine only, not for the transport of drive units (engine
and transmission).
Only use transport and lifting devices approved by MTU.
The engine must only be transported in installation position, max. permissible diagonal pull 10°.
Take the engine's center of gravity into account.
In the case of special packaging with aluminum foil, suspend the engine on the lifting eyes of the trans-
port pallet or transport with equipment for heavy loads (forklift truck).
Install the crankshaft locking device and the locking screws for the engine mounts prior to engine trans-
portation.
Secure the engine against tilting during transport. The engine must be especially secured against slip-
ping or tilting when going up or down inclines and ramps.
Setting the engine down after transport
Only set down engine on a firm, level surface.
Make sure that the consistency and load-bearing capacity of the ground or support surface is adequate.
Never place an engine on the oil pan, unless expressively authorized by MTU on a case-to-case basis to
do so.
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1.8 Crankshaft transport locking device
Special tools, Material, Spare parts
Designation / Use Part No. Qty.
Torque wrench, 10-60 Nm F30510423 1
Torque wrench, 60-320 Nm F30047446 1
Engine oil
Transport locking device
Note: The locking device protects the crankshaft bearings from shocks and vibration damage during engine
transport.
For installation and removal of the transport locking device, follow the in-
structions below:
1. The transport locking device must remain installed as long as possible during engine installation in or-
der to avoid damage.
2. Prior to every engine transport, the transport locking device must be reinstalled on both sides accord-
ing to the instructions.
3. If the engine is to be moved together with the generator, the transport locking device for the generator
must also be installed.
4. Always use the screws supplied with or installed in the transport locking device to secure it on the en-
gine.
5. Starting or barring the engine is allowed only with the transport locking device removed. If the genera-
tor is already mounted on the engine, ensure that the transport locking device of the generator is also
removed.
Removing guard plates and en-
gine mounting brackets (if appli-
cable) on driving end (KS)
1. Remove screws (4) on both sides and take
off with washers (3), guard plates (1) and
engine supports (2).
2. Store the removed parts of the transport
locking device carefully for possible reuse.
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Fitting the transport locking de-
vice on driving end (KS)
Note: Attach plate (6) only to the upper part of the openings.
1. Secure the plates (6) with screws (4) and washers (5) at the bores on both sides of the flywheel housing
and tighten to the specified tightening torque.
Name Size Type Lubricant Value/Standard
Screw M16 Tightening torque (Engine oil) 250 Nm +25 Nm
2. Screw locknut (2) onto screw (1) up to the end of the thread.
3. The long end of the holder (3) must face downwards. Insert holder (3) through the openings in the
plate (6).
Note: The holder (3) must lock the flywheel only, not the ring gear.
4. Turn screw (1) in bores of holder (3) until holder (3) is secured.
Note: The screw (1) must be tightened alternately on both sides of the flywheel housing.
5. Tighten screw (1) to specified tightening torque.
Name Size Type Lubricant Value/Standard
Screw M10 Tightening torque (Engine oil) 30 Nm +3 Nm
6. Place locknut (2) of screw (1) in position on plate (6) and lock it.
Removing the transport locking
device from driving end (KS)
1. Release the locknuts (2) on both sides of
the flywheel housing, remove screw (1) and
take off holder (3).
2. Unscrew screws (4) and remove together
with washers (5) and plates (6).
3. Store the removed parts of the transport
locking device together with this documen-
tation carefully for possible reuse.
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Installing guard plates and en-
gine mounting brackets (if appli-
cable) on driving end (KS)
Note: Always use the screws supplied with the or
removed from the guard plates and engine
mounting brackets to secure them on the
engine.
1. Install engine mounting brackets (2) on
both sides with guard plates (1) wash-
ers (3), and screws (4).
2. Tighten screws (4).
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2 General Information
2.1 Engine side and cylinder designations
Engine sides are always designated as viewed from the driving end (KS) (4).
For designation of the cylinders (to DIN ISO 1204) the letter "A" (1) is used to refer to the cylinders on
the left-hand side of the engine and the letter "B" (3) to refer to the cylinders on the right-hand side. The
cylinders of each bank are numbered consecutively, starting with No. 1 at the driving end.
The numbering of other engine components also starts with no. 1 at the driving end.
1 Left-hand side of engine
2Free end 3 Right-hand side of engine
4 Driving end
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2.2 Product description
Description of the engine
Engine
The engine is a liquid-cooled four-stroke diesel engine, rotating counterclockwise (seen from driving
end), with direct injection, sequential turbocharging and charge air cooling.
The engine is monitored by an engine control and monitoring system (ADEC).
Monitoring in the engine room is carried out by the engine control and monitoring unit (LOP).
Fuel system
Electronically controlled common-rail-injection system with HP pump, pressure accumulator (rail) and
single injectors with integrated individual store.
The electronic control unit controls
•Injection start
• Injection quantity
• Injection pressure
Exhaust system
The exhaust system is equipped with triple-walled, water-cooled exhaust lines.
The triple-walled design permits
• low surface temperature,
• reduced amount of heat to be dissipated by the coolant,
• absolute gas-tightness.
Turbocharging
Sequential turbocharging with internal, engine-coolant-controlled charge air cooling. The right-hand ex-
haust turbocharger is cut-in and cut-out on 12V and 16V engines with electronically-controlled, hydraul-
ically-actuated flaps. ETC B1 A2 and B2 on 20V engines.
Cooling system
Engine cooling as split-circuit cooling system with plate-core heat exchanger.
Heating of the charge air in idle and low-load operation prevents white smoke formation.
Seawater only flows through engine coolant and fuel heat exchanger as well as the raw water pump.
Service block
The service components are mounted at the auxiliary PTO end.
The layout permits easy access for maintenance.
Service components:
• Raw water pump, coolant pump
• Fuel duplex filter, switchable
• Automatic oil filter
• Centrifugal lube oil filter
• Coolant expansion tank (20V 4000 M03 only, not installed on engine).
Electronic system
Electronic control and monitoring system with integrated security and test system with interfaces to
remote control system (RCS) and to monitoring system (MCS).
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Connection box EIM (Engine Interface Module)
The Engine Interface Module (EIM) is the central connection box on the engine. It covers the entire mini-
mum scope of a marine engine series. Has no controls or parts requiring maintenance.
Functions:
•Starter control (start repetition, tooth alignment, starter protection)
• Generator monitoring
• Open bus interface to the plant (SAE J1939)
• Emergency stop function with line break monitoring
• Redundant power supply
• Optional control of emergency air-shutoff flaps
• Key switch logic
• Interface to ECU and EMU
• MCS5 dialog interface
• Control of an MTU lube-oil priming pump (power components in separate MTU PPC Box)
• Connection facility for an MTU Local Operating Station (LOS)
• Serial RS422 interface for diagnosis
The engine interface is divided into two parts. The first part is integrated via a Tyco connector X52, 62-
pin, in the engine wiring harness. The second part comprises the signals at which a higher current
flows. This signals are guided out via M-threaded pins and are also integrated in the engine wiring har-
ness.
Functions
• ECU supply
• EMU supply
• Plant signals (ECU7 connector X1)
• Bus interface (2x MCS5 CAN)
• CAN dialog output (1xMCS5 CAN)
• Emergency stop ECU and EMU
• Electric starter
• Terminal 45 starter A/B (engaged)
• Pneumatic starter
• Start air pressure valve
• Start air pressure sensor
• Barring device (barring gear 1 and 1 2)
• Battery-charging generator (with excitation control)
• Emergency-air shutoff flaps option
• Control signals to SDAF 1+2
• Feedback signals from SDAF 1+2
Electronic engine control unit (ECU)
Functions:
• Engine speed control with fuel and speed limitation dependent on engine status and operating condi-
tions;
• Control of sequential turbocharging, cylinder bank cut-out and air recirculation function.
• Data processing logistics for analog and binary signals;
• Interface for data transfer to CAN field bus for remote control and ship-side monitoring;
• RS 232 interface for connection of MTU dialog unit.
Electronic Engine Monitoring Unit (EMU), optional
Functions:
• Data processing logistics for analog and binary signals;
• Interface for data transfer to CAN field bus for remote control and ship-side monitoring;
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