Volvo TAD941GE User manual

Users guide and and maintenance
manual
V
VO OL LV VO O
G
Ge en ne er ra at ti in ng g s se et t a an nd d
i
in nd du us st tr ri ia al l e en ng gi in ne es s
9
9 l li it te er r ( (E EM MS S
2 2) )
T
TA AD D9 94 41 1G GE E
7745269 (11-2005)
33522062701_1_1

Generating set and industrial engines
9 liter (EMS 2)
OPERATOR’S MANUAL

Safety information ................................................. 2
Safety rules for operation and maintenance ......... 3
Introduction ........................................................... 6
Environmental responsibility ................................ 6
Running in ............................................................ 6
Fuel and oils ........................................................ 6
Maintenance and spare parts ............................... 6
Certified engines .................................................. 7
Warranty ............................................................... 7
Introduction ........................................................... 8
Technical description ........................................... 8
Identification numbers .......................................... 9
EMS 2 ............................................................... 10
Instrument, EMS 2 ............................................. 11
DCU (Display Control Unit) .................................. 12
Starting the engine.............................................. 18
Before starting ................................................... 18
Starting method EMS 2 ...................................... 19
Volvo Penta starter switch .................................. 20
Starting in extreme cold ..................................... 21
Never use start spray ......................................... 22
Starting with auxiliary batteries .......................... 22
Operation ............................................................. 23
Checking instruments ........................................ 23
Fault indication................................................... 23
Operation at low load ......................................... 23
Stopping the engine ........................................... 24
Before stopping .................................................. 24
Stop ................................................................... 24
After stopping .................................................... 24
Extra stop ........................................................... 24
Maintenance schedule ........................................ 25
Maintenance ........................................................ 27
Engine, general .................................................. 27
Lubrication system .............................................. 30
Cooling system .................................................. 33
Fuel system ....................................................... 39
Electrical system ............................................... 42
Component location ............................................ 45
Laying up............................................................. 46
Conservation ...................................................... 46
Removing conservation preparations .................. 47
Fault tracing ........................................................ 48
Symptoms and possible causes ........................ 48
Diagnostic function ............................................. 49
Fault messages ................................................. 49
Effect on engine ................................................. 49
Operation ........................................................... 50
Fault codes .......................................................... 51
Technical data ..................................................... 64
General .............................................................. 64
Lubrication system ............................................. 66
Fuel system ....................................................... 67
Cooling system .................................................. 68
Electrical system ............................................... 68
Table of contents

Safety information
Incorrect operation can lead to personal injury and damage to products or property. So read the
instruction book through very carefully before you start the engine or do any maintenance or
servicework. If there is still something which is unclear or if you feel unsure about it, please con-
tact your Volvo Penta dealer for assistance.
This symbol is used in the instruction book and on the product, to call your attention
to the fact that this is safety information. Always read such information very carefully.
Safety texts in the instruction book have the following order of priority:
WARNING! Warns for the risk of personal injury, major damage to product or property, or
serious malfunctions if the instruction is ignored.
IMPORTANT! Is used to call attention to things which could cause damage or malfunctions
to product or property.
NOTE! Is used to call attention to important information, to facilitate work operations or handling.
This symbol is used on our products in some cases and refers to important information in
the instruction book. Make sure that warning and information symbols on the engine are clearly
visible and legible. Replace symbols which have been damaged or painted over.
Read this chapter very carefully. It has to do with your safety. This describes how safety information is presented
in the instruction book and on the product. It also gives you an introduction to the basic safety rules for using and
looking after the engine.
Check that you have received the correct instruction book before you read on. If not, please contact your
Volvo Penta dealer.

Safety information
3
Safety rules for operation and maintenance
Daily checks
Make it a habit to always give the engine and engine
bay a visual check before operation (before the en-
gine is started) and after driving (when the engine
has been stopped). This helps you to quickly discov-
er whether any leakage of fuel, coolant, oil or any oth-
er abnormal event has happened, or is about to hap-
pen.
Fuel filling
There is always a risk of fire and explosion during fuel
filling. Smoking is not permissible, and the engine
should be stopped.
Never over-fill the tank. Shut the tank cap securely.
Only use the fuel recommended in the instruction
book. The wrong grade of fuel can cause malfunctions
or stop the engine. In a diesel engine, it can also
cause the injection pump to bind and the engine will
over-rev, entailing a strong risk of personal injury and
machinery damage.
Carbon monoxide poisoning
Only start the engine in a well- ventilated area. When
operated in a confined space, exhaust fumes and
crankcase gases must be ventilated.
Operation
The engine must not be operated in environments
which contain explosive media since none of the elec-
trical and mechanical components are explosion
proof.
Going close to a running engine is a safety risk. Hair,
fingers, loose clothes, or dropped tools can catch on
rotating components and cause severe injury.
When engines are supplied without touch guards, all
rotating components and hot surfaces must be pro-
tected after installation in their application, if neces-
sary for personal safety.
Ignition lock
If the instrument panel does not have a key switch,
the engine room must be lockable, to prevent unau-
thorized persons from starting the engine. Alternative-
ly, a lockable main switch can be used.
Care and maintenance
Knowledge
The instruction book contains instructions for doing
the most common service and maintenance tasks in a
safe and correct manner. Read them carefully before
starting work.
Literature for more major tasks is available from your
Volvo Penta dealer.
Never do a job if you are not entirely sure about how
to do it. Please contact your Volvo Penta dealer and
ask for assistance instead.
Stop the engine
Stop the engine before opening or removing the en-
gine hatch/hood. Care and maintenance work should
be done with the engine stopped unless otherwise
specified.
Prevent the engine from being started by pulling out
the starter key and cutting the current with the battery
isolator. Lock them in the “Off” position. Fix a notice
by the operator’s seat to say that work is in progress.
Working with, or going close to a running engine is a
safety risk. Hair, fingers, loose clothes, or dropped
tools can catch on rotating components and cause se-
vere injury. Volvo Penta recommends that all service
work which requires the engine to be running should
be done by an authorized Volvo Penta workshop.

Safety information
4
Lifting the engine
The existing lugs on the engine should be used for lift-
ing. Always check that the lifting devices are in good
condition and that they have the correct capacity for
the lift (engine weight together with auxiliaries, if fit-
ted). For safety at work, the engine should be lifted
with an adjustable lifting boom. All chains or cables
should be parallel to each other and should be as
square as possible to the top of the engine. Please
note that auxiliary equipment installed on the engine
could change its center of gravity. Special lifting de-
vices may then be needed to obtain the correct bal-
ance and safe handling. Never carry out work on an
engine that is only suspended in a lifting device.
Before starting
Re-install all guards which have been removed during
service work, before re-starting the engine. Make sure
that there are no tools or other objects left behind on
the engine.
Never start a turbocharged engine without the air filter
in place. The rotating compressor turbine in the turbo-
charger can cause severe injury. There is also a risk
that foreign bodies could be sucked in and cause ma-
chinery damage.
Fire and explosion
Fuel and lubrication oil
All fuel, most lubricants and many chemicals are
flammable. Always read and observe the advice on
the packages.
Work on the fuel system must be done with the en-
gine cold. Fuel leakage and spills on hot surfaces or
electrical components can cause fires.
Store oil and fuel soaked rags and other flammable
material in a fire-proof manner. In certain circumstanc-
es, oil soaked rags can self-ignite.
Never smoke when filling fuel, lubrication oil or when
close to fuel filling stations or the engine bay.
Non-original spare parts
Components in fuel systems and electrical systems
on Volvo Penta engines are designed and manufac-
tured to minimize the risk of explosions and fire, in ac-
cordance with applicable legal requirements.
The use of non-original spare parts can cause an ex-
plosion or fire.
Batteries
Batteries contain and give off an explosive gas, espe-
cially when charged. This gas is very flammable and
highly explosive.
Smoking, open flames or sparks must never occur in
or near to batteries or the battery locker.
Incorrect connection of a battery cable or start cable
can cause a spark which can be sufficient, in its turn,
to make the battery explode.
Start spray
Never use start spray or similar preparations to help in
starting an engine with air pre-heating (glow plugs /
starting heater). They may cause an explosion in the
inlet manifold. Danger of personal injury.
Hot surfaces and fluids
A hot engine always offers the risk of burns. Be on
your guard against hot surfaces: the exhaust mani-
fold, turbocharger, oil pan, charge air pipe, starting
heater, hot coolant and hot lubricating oil in pipes,
hoses etc.
Safety rules for operation and maintenance (contd.)

Safety information
5
Chemicals
Most chemicals, such as glycol, rust preventer, con-
servation oils, degreasers etc. are hazardous. Always
read and observe the advice on the packages.
Some chemicals, such as conservation oils, are flam-
mable and alsodangerous to breathe. Ensure good
ventilation and use a protective mask for spraying. Al-
ways read and observe the advice on the packages.
Store chemicals and other hazardous material out of
the reach of children. Hand in surplus or used chemi-
cals to a recycling station for destruction.
Lubrication system
Hot oil can cause burns. Avoid skin contact with hot
oil. Make sure that the oil system is de-pressurized
before starting work. Never start or run the engine with
the oil filler cap removed, because of the risk of oil
spillage.
Cooling system
Avoid opening the coolant filling cap when the engine
is hot. Steam or hot coolant can spray out at the
same time as the pressure built up is lost.
If the filler cap, coolant hose etc., still has to be
opened or removed when the engine is hot, undo the
filler cap slowly and carefully, to let the pressure out
before removing the filler cap completely and starting
work. Note that the coolant can still be hot and cause
scalding.
Fuel system
Always protect your hands when searching for leaks.
Fluids which leak under pressure can force their way
into body tissue and cause severe injury. There is a
risk of blood poisoning (septicemia).
Always cover the alternator if it is located beneath the
fuel filters. Fuel spillage can damage the alternator.
Electrical system
Cut the current
Before any work is done on the electrical system, the
engine must be stopped and the current cut by switch-
ing off the main switch(es). External current supply for
engine heaters, battery chargers or other auxiliary
equipment connected to the engine must be discon-
nected.
Batteries
Batteries contain a highly corrosive electrolyte. Pro-
tect your eyes, skin and clothes during charging and
other handling of batteries. Always use protective gog-
gles and gloves.
If acid comes into contact with your skin, wash at
once with soap and a lot of water. If you get battery
acid in your eyes, flush at once with a lot of cold wa-
ter, and get medical assistance at once.
Electric welding
Remove the positive and negative cables from the
batteries. Then disconnect all cables connected to the
alternator.
Disconnect both connectors from the engine control
module.
Always connect the welder earth clamp to the compo-
nent to be welded, and as close as possible to the
weld site. The clamp must never be connected to the
engine or in such a way that current can pass through
a bearing.
When welding is completed: Always connect the al-
ternator cables to the alternator and connectors to
the engine control module before the battery cables
are put back.

Introduction
This instruction book has been prepared to give you the greatest possible benefit from your Volvo Penta industrial
engine. It contains the information you need to be able to operate and maintain the engine safely and correctly.
Please read the instruction book carefully and learn to handle the engine, controls and other equipment in a safe
manner before you start the engine.
Environmental responsibility
All of us want to live in a clean, healthy environment,
where we can breathe clean air, see healthy trees,
have clean water in lakes and seas, and be able to
enjoy the sunlight without fearing for our health. Unfor-
tunately, this is not a matter of course these days, it
is something all of us must work for.
As an engine manufacturer, Volvo Penta has particu-
lar responsibility and for this reason, environmental
care is an obvious foundation of our product develop-
ment. Volvo Penta has a wide engine program these
days, where considerable progress has been made in
reducing exhaust fumes, fuel consumption, engine
noise etc.
We hope that you will want to preserve these values.
Always observe the advice in the instruction book
about fuel grades, operation and maintenance, to
avoid unnecessary environmental impact. Please con-
tact your Volvo Penta dealer if you notice any chang-
es such as increased fuel consumption or increased
exhaust smoke.
Please remember to always hand in hazardous waste
such as drained oil, coolant, old batteries etc. for de-
struction at an approved recycling facility.
If we all pull together, we can make a valuable contri-
bution to the environment together.
Running in
The engine must be “run in” during its first 10
hours, as follows:
Use the engine in normal operation. Full load should
only be applied for short periods. Never run the engine
for a long period of time at constant speed during this
period.
Higher oil consumption is normal during the first 100-200
hours of operation. For this reason, check the oil level
more frequently than normally recommended.
When an opening clutch is installed, this should be
checked more carefully during the first days. Adjust-
ment may need to be done to compensate bedding in
of the friction plates.
Fuel and oils
Only use the grades of fuels and oils recommended in
the instruction book (please refer to the “Maintenance”
chapter under the fuel and lubrication system head-
ings). Other grades of fuel and oils can cause mal-
functions, increased fuel consumption and eventually
even shorten the life of the engine.
Always change the oil, oil filter and fuel filter at the
specified intervals.
Maintenance and spare parts
Volvo Penta engines are designed for maximum reli-
ability and long life. They are built to withstand a de-
manding environment, but also to have the smallest
possible environmental impact. These qualities are re-
tained through regular service and use of Volvo Penta
original spare parts.
Volvo Penta has a world-wide network of authorized
dealers. They are Volvo Penta product specialists,
and have the accessories, original spares, test equip-
ment and special tools needed for high quality service
and repair work.
Always observe the maintenance intervals in the
instruction book, and remember to note the en-
gine/transmission identification number when you
order service and spare parts.
IMPORTANT! This instruction book describes the engine and equipment sold by Volvo Penta. Variations in
appearance and function of the controls and instruments may occur in certain variants. In these cases,
please refer to the instruction book for the relevant application.

Certified engines
If you own an emission certified engine, which is
used in an area where exhaust emissions are regu-
lated by law, it is important to be aware of the fol-
lowing:
Certification means that an engine type has been
checked and approved by the relevant authority. The
engine manufacturer guarantees that all engines made
of the same type are equivalent to the certified en-
gine.
This makes special demands on the care and
maintenance you give your engine, as follows:
•Maintenance and service intervals recommended
by Volvo Penta must be complied with.
•Only Volvo Penta original spares may be used.
•Service to injection pumps, pump settings and in-
jectors must always be done by an authorized
Volvo Penta workshop.
•The engine must not be converted or modified, ex-
cept for the accessories and service kits which
Volvo Penta has developed for the engine.
•No installation changes to the exhaust pipe and
engine air inlet ducts may be done.
•No seals on the engine may be broken by unau-
thorized persons.
The general advice in the instruction book about oper-
ation, care and maintenance applies.
IMPORTANT! Neglected or poor care/service,
and use of non-original spareparts means that
AB Volvo Penta can no longer be responsible for
guaranteeing that the engine complies with the
certified version.
Damage, injury and/or costs which arise from
this will not be compensated by Volvo Penta.
Warranty
Your new Volvo Penta industrial engine is covered by a limited warranty, under the conditions and instruc-
tions compiled in the Warranty and Service book.
Please note that AB Volvo Penta’s liability is limited to the specification in the Warranty and Service
book. Read it carefully, as soon as possible after delivery. This contains important information such as
the warranty card,
service intervals, maintenance, which it is the responsibility of the owner to know, check and carry out. If
this is not done, AB Volvo Penta may fully or partly refuse to honor its warranty undertakings.
Please contact your Volvo Penta dealer if you have not received a Warranty and Service book, or a
customer copy of the warranty card.
Introduction

Introduction
TAD940GE, TAD941GE, TAD940VE, TAD941VE, TAD942VE, TAD943VE, TAD950VE, TAD951VE and
TAD952VE are in-line, direct injected, 6-cylinder industrial diesel engines. TAD950VE, TAD951VE have
TAD952VE have internal EGR (Exhaust Gas Recirculation).
All engines are equipped with electronically controlled fuel management (EMS 2), turbocharger, intercooler, ther-
mostatically controlled cooling systems and electronic speed control.
Technical description
Engine and engine block
– The engine block and cylinder head are manufac-
tured of alloyed cast iron
– Seven bearing induction hardened crankshaft
– Replaceable wet cylinder liners
– Cast aluminum pistons with oil cooling
– Three piston rings, with a “keystone” type top ring
– Induction hardened, overhead, seven bearing
camshaft with .
– Four valves per cylinder
– Replaceable valve seats and valve guides
Fuel system
– Microprocessor based fuel supply control unit
(EMS 2)
– Gear driven fuel supply pump
– Centrally located unit injectors with electromag-
netically controlled fuel valves
– Spin-on secondary fuel filter and water trap
– IEGR (Internal Exhaust Gas Recirculation)
TAD950VE, TAD951VE, TAD952VE
Lubrication system
– Water cooled oil cooler
– Gear driven oil pump
– Two full flow filters and a spin-on bypass filter
Turbocharging system
– Turbocharger
Cooling system
– Radiator with expansion tank
– Air cooled intercooler
– Belt-driven water pump
– Piston thermostat
Electrical system
– 24V electrical system
– Alternator with charge sensor
80 A (110 A and 140 A optional)
– Engine mounted extra stop (AUX STOP)

Introduction
9
Identification numbers
Explanation of engine designation:
E.g. TAD940GE/TAD940VE
T – Turbo
A – Air to air intercooler
D – Diesel engine
9 – Cylinder volume, liter
4 – Generation
0 – Version
G – Generator unit engine
V – Stationary and mobile operation
E – Emission control
Location of engine signs
The sign above shows examples of:
- Engine designation
- Serial number
- Specification number
The sign above shows examples of:
- Engine designation
- Engine power, net, (without fan)
- Max. engine speed
- Main software
- Data set 1
- Data set 2
- Product number

Introduction
10
EMS 2
EMS 2 (Engine Management System) is an electronic system with CAN communication (Controller Area Network)
for diesel engine control. The system has been developed by Volvo Penta and includes fuel control and diagnostic
function.
Fuel control
The engine fuel requirement is analyzed up to 100
times per second. The amount of fuel injected into the
engine and the injection advance are fully electronical-
ly controlled, via fuel valves and the unit injectors.
This means that the engine always receives the cor-
rect volume of fuel in all operating conditions, which
offers lower fuel consumption, minimal exhaust emis-
sions etc.
Diagnostic function
The task of the diagnostic function is to discover and
localize any malfunctions in the EMS 2 system, to
protect the engine and to ensure operation in the
event of serious malfunction.
If a malfunction is discovered, this is announced by
warning lamps, a flashing diagnostic lamp or in plain
language on the instrument panel, depending on the
equipment used. If a fault code is obtained as a flash-
ing code or in plain language, this is used for guidance
in any fault tracing. Fault codes can also be read by
Volvo’s VODIA tool at authorized Volvo Penta work-
shops.
If there is a serious malfunction, the engine will be
shut down altogether, or the control unit will reduce
the power delivered (depending on application). Once
again, a fault code is set for guidance in any fault
tracing.
Summary
The system includes sensors, control unit and unit in-
jectors. The sensors send input signals to the control
unit, which controls the unit injectors in its turn.
Input signals
The control unit receives input signals about engine
operating conditions etc. from the following compo-
nents:
– coolant temperature sensor
– charge pressure / charge temperature sensor
– crankcase pressure sensor
– position sensor, camshaft
– speed sensor, flywheel
– coolant level sensor
– oil level and temperature sensor
– oil pressure sensor
– fuel pressure sensor
– water in fuel indicator
Output signals
The control module uses the input signals to control
the following components:
– unit injectors
– starter motor
– main relay
– pre-heating relay
Information from the sensors provides exact informa-
tion about current operation conditions and allows the
processor in the control unit to calculate the correct
fuel injection volume and timing, check engine status
etc.

Introduction
11
Instrument, EMS 2
NOTE! All instruments are accessories.
CIU - Control Interface Unit
The CIU is the “translator” between the EMS 2 control
unit and the customer’s own control panel. The CIU
has two serial communication links, a fast one and a
slow one.
The fast one is a so-called CAN link. All data related
to instruments, indication lamps, connectors and po-
tentiometers is controlled by this link.
The slow link manages diagnostic information for
flashing codes etc.
DU - Display Unit
The DU is an instrument panel which shows engine
working values graphically on an LCD screen. It con-
sists of an computerised unit for permanent installa-
tion in a control panel.
The DU is connected between the engine control unit
and the CIU or DCU.
Easy Link instrument
(only together with a CIU)
The following “Easy Link” instruments are available:
– Engine speed / hours counter (fault codes are also
displayed on the tachometer display when the di-
agnostic button is pressed)
– Coolant temperature
– Oil pressure
– Oil temperature
– Battery voltage
– Alarm panel
– Turbo pressure

Introduction
12
DCU (Display Control Unit)
The DCU (Diesel Control System) control panel is available as an optional accessory for the EMS (Engine Man-
agement System) electronic control system. The DCU is a digital instrument panel which communicates with the
engine control unit. DCU has several functions, such as: engine control, monitoring, diagnostics and parameter
setting.
The menus in the DCU system can be used to check, and in some cases to set a number of different functions in
the EMS system.
NOTE! The menus and illustrations shown here are the English version. The language can be changed, however.
Please refer to the “Setup” menu.
1. LED display
2. START. Starts the engine
3. SPEED -. Reduces engine speed
4. SPEED +. Increases engine speed
5. STOP. Stops the engine
6. ON/OFF. Starts and stops the system
7. Scroll downwards in menus
8. SEL. Selects in menus
9. Scroll upwards in menus
10. ESC. Return to previous menu selection
Start
When the DCU panel is started up, the “Engine Data” menu is displayed. Press “ESC” to come to the main menu.
12345
7
8910
6

Introduction
13
Menus
There are several sub-menus under each main menu.
There is not space for all the menu choices on the
display. To scroll through the menus, use the “7” and
“9” buttons on the display. Press the “SEL” button, no.
“8” to make a selection. Please refer to the illustration
on the previous page.
NOTE! The “Setup” menu can be used to select the
language that you want to use on the display.
Main menu
nEngine data, relevant engine data.
nPreheat, manual activation of pre-heating
nGovernor mode, activation of droop.
nDiagnostics, shows fault codes in plain language.
nTrip reset, resets trip data
nSetup, parameter setting
nInformation, shows the data for the applicable
hardware, software, data set and engine identifica-
tion of the engine and DCU
Engine data
shows relevant engine data.
• Engine speed, can be controlled with the “SPEED +”
and “SPEED –” buttons (rpm)
• Charge pressure (kPa)
• Coolant temperature (°C)
• Charge air temperature (°C)
• Oil pressure (kPa)
• Oil temperature (°C)
• Engine hours (h)
• Battery voltage (V)
• Fuel consumption (l/h)
• Instantaneous fuel consumption (trip fuel) (l)

Introduction
14
Preheat
manual activation of pre-heating. When it is activated,
the EMS system senses when started if pre-heating is
needed. For automatic pre-heating, please refer to the
“Setup” / “Pre-heat on ignition” menu.
The pre-heating time is adjusted to suit the engine
temperature, and can last for up to 50 seconds both
before and after starting. Also refer to “Starting proce-
dure, EMS 2”.
• Press “SEL”, the text “Preheat requested” is dis-
played.
• The display automatically returns to the “Engine
Data” menu.
Governor mode
activates/shuts off droop. To set the droop level,
please refer to the “Setup” / “Governor gradient” or
“Governor droop” menus.
• Select “Isochronous mode” or “Droop mode” with
the SEL button.
Diagnostics
shows the error list containing the 10 latest active and
inactive faults. The fault code are shown as text on
the display.
• Scroll through the error list with the arrow keys.
Trip reset
resets trip data, such as fuel consumption.
• Press the SEL button to reset trip data.

Introduction
15
Setup
parameter setting in the engine’s control systems. Dif-
ferent menus appear under “Customer parameter”, de-
pending on whether you select “Versatile” or “Genset”
from “Set application”.
The parameters that can be set / selected (choice is
made with the SEL button) are:
•Set application, setting of “Versatile” or “Genset”.
Different menus appear under “Customer param-
eter”, depending on what is chosen here.
•Unit, selection of units of measurement (metric or
US units)
•Language, selection of the language shown in the
display. You can choose between English,
French, German and Spanish.
•Stop energized to, setting for the external stop
input. Activated at “Stop” or “Run”.
“Stop”: The stop input must be connected to
voltage to stop the engine.
“Run”: The stop input must be connected to volt-
age to run the engine.
•Customer parameter, alarm limit setting. Please
refer to “Customer parameter / Versatile” and
“Customer parameter / Genset”.
•Throttle input setting, setting of speed control
and voltage limits. See “Throttle input setting”.
•Display setting, display setting. See “Display set-
ting”.
Customer parameter / Versatile
• Idle engine speed - setting idling speed
• Preheat on ignition - activation of automatic pre-
heating. The engine control system senses if pre-
heating is needed and activates it directly when
switched on.
• Governor gradient (Nm/rpm) - setting the droop
level, when this has been activated. Please refer
to “Governor droop” in the main menu for activa-
tion.
• Oil temp warning limit (°C) - setting the alarm
limit for the oil temperature.
• Coolant temp warning limit (°C) - setting the
alarm limit for the coolant temperature.

Introduction
16
Customer parameter / Genset
• Primary engine speed - selection of engine
speed, 1500 or 1800 rpm.
• Preheat on ignition - activation of automatic pre-
heating. The engine control system senses if pre-
heating is needed and activates it directly when
switched on.
• Governor droop (%) - setting the droop level,
when this has been activated. Please refer to
“Governor droop” in the main menu for activation.
• Overspeed limit (%) - setting the speed for the
excess speed alarm, % of set engine speed.
• Overspeed shutdown - activation of engine shut
down when the excess speed alarm is activated.
Please refer to “Overspeed limit” to activate the
alarm limit for the excess speed alarm.
• Oil temp warning limit (°C) - setting the alarm
limit for the oil temperature.
• Coolant temp limit (°C) - setting the alarm limit
for the coolant temperature.
Throttle input setting
speed control setting (throttle operation).
• Set throttle mode -
“OFF” - engine speed is controlled via the DCU
panel.
“ext throttle input” - engine speed is controlled with
a potentiometer (accelerator).
“ext voltage input” - engine speed is controlled by
an external unit.
• Set idle voltage (V) - setting the voltage level at
idle.
• Set max voltage (V) - setting the voltage level at
maximum speed.
0
100
Idling Max Voltage (V)
Potentiometer
value (%)
0
100
Max Idling Voltage (V)
Potentiometer
value (%)

Introduction
17
Display setting
settings for the display. Adjustment is done with the
“7” and “9” buttons, please refer to the DCU panel in
the illustration.
• Set contrast (%) - display contrast adjustment.
• Set backlight time (sec) - sets the time (in sec-
onds) for background illumination in the display.
The light is then switched off if the panel is not
used.
• Set backlight brightness - adjustment of illumi-
nation strength in the display.
Information
shows the data for the engine and DCU.
•Engine hardware ID - part number of the engine
control module
•Engine software ID - part number of the software
in the engine control module
•Engine dataset1 ID - part number of engine data
set 1.
•Engine dataset2 ID - part number of engine data
set 2.
•Vehicle ID - chassis number
•DCU hardware ID - part number of the DCU.
•DCU software ID - part number of the software in
the DCU.
•DCU dataset1 ID - part number of DCU data set 1.
•DCU dataset2 ID - part number of DCU data set 2.

18
Starting the engine
Make it a habit to give the engine and engine bay a visual check before starting. This will help you to discover
quickly if anything abnormal has happened, or is about to happen. Also check that instruments and warning dis-
plays show normal values after you have started the engine.
WARNING! Never use start spray or similar products as a starting aid. Explosion risk!
Before starting
• Check that the oil level is between the MAX and
MIN marks. Please refer to the “Maintenance, lu-
brication system” chapter:
• Open the fuel taps.
• Check that no leakage of oil, fuel or coolant
occurs.
• Check the air filter pressure drop indicator. Please
refer to the “Maintenance, Engine, general” chap-
ter:
• Check the coolant level and that the radiator is not
blocked externally. Please refer to the “Mainte-
nance, cooling system” chapter:
WARNING! Do not open the filler cap (1) when
the engine is hot. Steam or hot fluid could spray
out.
NOTE! Only open filler cap (1). Do not open filler cap
(2).
• Turn the main switch(es) on.
IMPORTANT! Never disconnect the current with
the main switch(es) when the engine is running.
This can damage the alternator.
• Move the engine speed control to idle, and release
the opening clutch/gearbox if installed.