Nanni N6.285 CR2 User manual

NANNI MARINE ENGINE
OPERATOR MANUAL
DGBXXT09015
ENGINE
N6.285 CR2
N6.325 CR2
N6.360 CR2
N6.405 CR2

3
Q00 TRACKED CHANGES
TRACKED CHANGES
CODE INDEX DATE INITIALS NATURE OF TRANSLATIONS PAGES
DGBXXT09015 - 06/2019 MC Create -
Please note all changes and pages associated.
For further clarity, please add a line in front of each change.

5
S00 SUMMARY
Q00 TRACKED CHANGES 3
TRACKED CHANGES 3
S00 SUMMARY 5
S01 INTRODUCTION 7
INTRODUCTION 7
ABOUT THIS MANUAL 8
CONTENT & UPDATES 8
S02 SAFETY 9
SUMMARY 9
SAFETY SIGNALS 10
SAFETY INFORMATION 10
REPLACEMENT OF MISSING OR DAMAGED SAFETY
SIGNS 10
READ SAFETY INSTRUCTIONS 10
ENGINE-GENSET SAFETY ICONS 11
SAFETY PRECAUTIONS 12
HOT EXHAUST PRECAUTIONS 12
WORK IN VENTILATED AREA 12
WASTE DISPOSAL 12
UNWANTED ENGINE START 12
SAFE MAINTENANCE PRACTICE 12
WORK IN CLEAN AREA 12
PROTECTIVE CLOTHING 12
SERVICE ENGINES SAFELY 13
PROPER USE OF TOOLS 13
SUPPORT ENGINES PROPERLY 13
SAFE ILLUMINATED WORK AREA 13
PROPER LIFTING EQUIPMENT 13
NOISE PROTECTION 13
GENSET OUTPUT GENERATED POWER 13
GUARDS REQUIREMENTS 13
STAYING CLEAR OF ROTATING DRIVE LINES 14
PAINT REMOVAL BEFORE HEATING 14
HIGH PRESSURE FUEL SYSTEM OPENING RISK 14
AVOID HIGH PRESSURE FLUIDS 14
SAFE COOLING SYSTEM SERVICE 14
AVOID HEAT NEAR PRESSURIZED FLUID LINES 14
WELDING NEAR ELECTRONIC CONTROL UNIT (ECU)
15
STATIC ELECTRICITY RISK 15
HANDLE FUEL SAFELY - AVOID FIRE 15
BE PREPARED FOR EMERGENCY 15
HANDLE STARTING FLUID SAFELY (ETHER) 15
HANDLING BATTERIES SAFELY 15
PREVENT BATTERY EXPLOSIONS 16
FROST PROTECTION - WINTERIZATION 16
LIVE WITH SAFETY 16
PREVENT ACCIDENTS 16
S03 FLUIDS 17
SUMMARY 17
FUELS 18
DIESEL FUEL 18
SULPHUR CONTENT 18
WINTER DIESEL 18
WATER IN FUEL 18
MICRO-ORGANISMS IN FUEL 18
INERT IMPURITIES IN FUEL 19
DIESEL LUBRICANTS 19
PRECAUTIONS TO UNDERTAKE 19
OILS RECOMMENDED OR AUTHORIZED 19
GENERALITIES 19
OILS VISCOSITY 20
DIESEL SULPHUR CONTENT 20
COOLANTS 21
COOLANT DRAIN INTERVALS 21
WATER PROPERTIES 21
WATER PROPERTIES TO MIX WITH COOLANT CON-
CENTRATE 21
OTHER COOLANTS 22
FREEZE PROTECTION 22
REQUIRED QUANTITY OF COOLANT VS COOLING
SYSTEM CAPACITY 22
OPERATING ENGINE IN WARM TEMPERATURE CLI-
MATES 22
DISPOSING OF WASTE FLUIDS 23
ANNEX 24
ANNEX 1. VOLUME OF GLYCOL 24
S04 ENGINE WARRANTY 25
ENGINE IDENTIFICATION 25
ENGINE HOMOLOGATION 25
ENGINE RESPONSABILITY 26
WARRANTY 26
PROPOSITION 65 STATE OF CALIFORNIA 26
EPA WARRANTY 27
S05 INSTRUMENTS 28
SUMMARY 28
GENERALITIES 29
PANELS WITH KEY 29
PANELS WITHOUT KEY 29
C4 PANEL 30
C4 REAR PANEL CONNECTIONS 30
C4 SEPARATE INSTRUMENTS 30
STARTER SWITCH 30
COOLANT TEMPERATURE 30
BATTERY CHARGE 30
PREHEATING 31
ENGINE OIL PRESSURE 31
WATER IN THE FUEL FILTER 31
C4 PRO PANEL 31
C5 PANEL 32
C5 STANDARD SEPARATE INSTRUMENTS 32
C5 OPTIONAL SEPARATE INSTRUMENTS 32
C5 TACHOMETER & LCD DISPLAY 32
ALTERNATOR CHARGE INDICATOR 32
STARTER SWITCH 32
OIL PRESSURE INDICATOR 33
COOLANT TEMPERATURE INDICATOR 33
FUEL LEVEL INDICATOR 33
WATER LEVEL INDICATOR 33

6
S00 SUMMARY
TRIM INDICATOR 33
RUDDER INDICATOR 34
ELECTRONIC INSTRUMENTS 34
NANNI CONTROL PANELS 35
SUMMARY 37
S06 COMPONENTS 38
ENGINE MAIN COMPONENTS 38
ENGINE VIEWS N6.CR2 SERIES 39
S07 STARTING & RUNNING 41
SUMMARY 41
BEFORE STARTING 42
ENGINE INSTALLATION 42
FUEL SYSTEM 42
RAW WATER SYSTEM 42
ELECTRICAL SYSTEM 42
CHECK BEFORE STARTING 43
STARTING THE ENGINE 43
COLD WEATHER OPERATION 43
ENGINE START 44
ENGINE STARTED 46
STARTING WITH BOOSTER BATTERIES 46
ENGINE RELUCTANT TO START 46
IDLING ENGINE 46
NORMAL ENGINE OPERATION 47
BREAK IN 47
POWER TAKE OFF 47
REMOTE CONTROL 48
RUNNING 48
BEHAVIOUR OF THE BOAT 48
DURING OPERATION 48
CRUISING SPEED 49
MANOEUVRING 49
TROLLING VALVE 50
AFTER RUNNING 50
STOPPING THE ENGINE 50
AFTER STOPPING THE ENGINE 51
ANCHORING 51
COLD WEATHER PRECAUTIONS 51
S08 MAINTENANCE 53
SUMMARY 53
ABOUT 54
GENERALITIES 54
CONTROL CABLES 54
MAINTENANCE INTERVALS 55
TURBOCHARGER 56
EXHAUST SYSTEM 57
ENGINE MOUNTS CHECK 57
AIR INTAKE 58
CHECK THE AIR FILTER 58
CLEANING THE AIR FILTER 58
VENT CRANKCASE FILTER 59
REPLACING CRANKCASE VENT FILTER 59
FUEL SYSTEM 60
DRAIN WATER IN FUEL PREFILTER 60
REMOVING FUEL FILTER COVER 60
REPLACING THE FUEL FILTERS 61
DRAINING WATER FROM FUEL FILTERS 61
LUBRICATION SYSTEM 62
OIL LEVEL - ADDING ENGINE OIL 62
DRAINING THE ENGINE OIL 63
CHANGING THE OIL FILTER 63
COOLING SYSTEM 64
OVERVIEW 64
COOLANT 65
COOLANT LEVEL 65
DRAINING THE COOLANT CIRCUIT 66
COOLANT - FILLING 66
REMOVING AND INSTALLING THERMOSTATS 67
TESTING THERMOSTATS 67
RAW WATER SYSTEM 69
CHECKING SACRIFICIAL ANODES 69
SIPHON BREAKER 69
EXTRACT THE RAW WATER PUMP IMPELLER 70
CLEANING THE RAW WATER FILTER 71
RAW WATER SYSTEM - DRAINING 71
RAW WATER SYSTEM - CLEANING 72
72
RISK OF ICING CONDITIONS. PROTECTION AGAINST
FROST: 72
ELECTRICAL SYSTEM 73
WIRES AND CONNECTORS 73
ENGINE ELECTRIC PANEL 73
ELECTRICAL HARNESS 74
BATTERY 75
DISCONNECT THE STARTER CABLES 75
CONNECT THE CABLES 75
BATTERY ELECTROLYTE LEVEL 75
ELECTROLYTE LEVEL CHECK 76
ALTERNATOR BELT 76
MISCELLANEOUS 77
CAMSHAFT TIMING 77
S09 STORAGE 80
LONG TERM STORAGE 81
LONG TERM STORAGE PROCEDURE 81
RESTARTING THE ENGINE 82
BATTERY 82
S10 TROUBLESHOOTING 83
SPECIFICATIONS 85

7
INTRODUCTION
Before operating the engine, make sure that this Manual is applicable to the engine type. Refer to the identication
plate if you are not sure about the engine model designation. If you don’t have the correct manual, please contact your
Nanni authorized dealer.
All the information and specications in this manual are based on the technical data available at time of publication.
Changes and updates may be made by Nanni without notice.
Illustrations are intended as a general guide and may vary from the equipment tted in the engine in some details.
If there are any equipment details that are not shown or described in this Manual, or if you have any question regarding
the operation of any equipment, your authorized Nanni dealer will be glad to inform you of correct care and operating
procedures. Contact a NANNI INDUSTRIES S.A.S. authorized dealer for the servicing of your engine. A list of dealers is
available on our website :
www.nannienergy.com
Read this Manual carefully to learn how to operate and service your engine correctly. Failure to do so could result
in personal injury or equipment damage. This Manual should be considered as a permanent part of the engine and
should remain with it, even when sold.
Right-hand and left-hand sides are determined by standing at the drive or flywheel end (rear) of the engine and facing
toward the front of the engine.
Write engine serial numbers and option codes (if any). Your Nanni Agent will need these numbers when you order
parts. File the identication numbers in a secure place. Some engine accessories such as air cleaner, and instruments
are optional. These accessories may be provided by a third party. This Manual applies only to the engine and those
options available through the Nanni distribution network.
S01 INTRODUCTION

8
S01 INTRODUCTION
ABOUT THIS MANUAL
This Manual contains important information, tips, sug-
gestions and warnings. We urge you to read it carefully
and familiarize yourself with the engine before
starting.
For your own safety and longer service life of the engine,
follow the instructions and warnings contained in this
manual and in all documentation provided with the boat.
Ignoring them could result in damage to the engine or
personal injury to you or others.
Please ensure that this Manual is always kept in the
boat. It should always be available to anyone else using
the engine, i.e. anyone renting, borrowing or buying the
engine from you.
CONTENT & UPDATES
All the informations and specications in this Manual
are based on the technical data applicable at the time of
its publication. Changes and updates may be made by
Nanni without notice.
Illustrations are intended as a general guide, and may
vary from the equipment tted in the engine in some de-
tails. Some sections of the Manual do not apply to all
engines. If this is the case, a text indicates which en-
gines it applies to.
If there are any equipment details that are not shown or
described in this Operator’s Manual, or if you have any
questions about the operation of any equipment, your
authorized Nanni Dealer will be glad to inform you of
correct care and operating procedures.

9
S02 SAFETY
SUMMARY
S02 SAFETY 9
SUMMARY 9
SAFETY SIGNALS 10
SAFETY INFORMATION 10
REPLACEMENT OF MISSING OR DAMAGED SAFETY SIGNS 10
READ SAFETY INSTRUCTIONS 10
ENGINE-GENSET SAFETY ICONS 11
SAFETY PRECAUTIONS 12
HOT EXHAUST PRECAUTIONS 12
WORK IN VENTILATED AREA 12
WASTE DISPOSAL 12
UNWANTED ENGINE START 12
SAFE MAINTENANCE PRACTICE 12
WORK IN CLEAN AREA 12
PROTECTIVE CLOTHING 12
SERVICE ENGINES SAFELY 13
PROPER USE OF TOOLS 13
SUPPORT ENGINES PROPERLY 13
SAFE ILLUMINATED WORK AREA 13
PROPER LIFTING EQUIPMENT 13
NOISE PROTECTION 13
GENSET OUTPUT GENERATED POWER 13
GUARDS REQUIREMENTS 13
STAYING CLEAR OF ROTATING DRIVE LINES 14
PAINT REMOVAL BEFORE HEATING 14
HIGH PRESSURE FUEL SYSTEM OPENING RISK 14
AVOID HIGH PRESSURE FLUIDS 14
SAFE COOLING SYSTEM SERVICE 14
Avoid heat near pressurized fluid lines 14
WELDING NEAR ELECTRONIC CONTROL UNIT (ECU) 15
STATIC ELECTRICITY RISK 15
HANDLE FUEL SAFELY - AVOID FIRE 15
BE PREPARED FOR EMERGENCY 15
HANDLE STARTING FLUID SAFELY (ETHER) 15
HANDLING BATTERIES SAFELY 15
Prevent battery explosions 16
FROST PROTECTION - WINTERIZATION 16
LIVE WITH SAFETY 16
PREVENT ACCIDENTS 16

10
S02 SAFETY
SAFETY SIGNALS
A signal word—DANGER, WARNING, or CAUTION—is
used in conjunction with the safety-alert symbol.
DANGER identies the most serious hazard with lethal
possible consequences.
WARNING identies serious hazard with possible large
injury consequences.
CAUTION identies precautions to undertake which if
not followed could lead to the above mentioned safety
warnings. Damage to equipement could happen.
NOTICE is used for specic attention to sensitive actions
on equipment. Other signals still applying.
IMPORTANT is a signal with a meaning of care to apply
to equipment.
SAFETY INFORMATION
This symbol on the engine or in this manual is an alert to
the potential for personal injury. Follow recommended
precautions and safe operating practices.
REPLACEMENT OF MISSING OR DAMAGED
SAFETY SIGNS
Replace missing or damaged safety signs. There can
be additional safety information contained on parts
and components sourced from suppliers that is not
reproduced in this Operator Manual.
READ SAFETY INSTRUCTIONS
Carefully read all safety messages in this manual and on
your genset safety signs.
Keep safety signs in good condition. Be sure new
equipment components and repair parts include the
current safety signs.
Replacement safety signs are available from your dealer.
There can be additional safety information contained on
parts and components sourced from suppliers that is
not reproduced in this Operator Manual.
Keep your equipment in proper working condition.
DANGER !
WARNING !
CAUTION !
NOTE !
IMPORTANT !
Please keep in mind that above safety labels have no
degree of danger. Any irresponsible action could lead to
a real danger situation.
Learn how to operate the equipment and how to use
controls properly. Do not let anyone operate it without
instruction.
Unauthorized modications to the equipment may
impair the function and/or safety and affect its life span.
If you do not understand any part
of this document and need
assistance, contact your Nanni
representative.

11
ENGINE-GENSET SAFETY ICONS
Some stickers are xed directly on the engine. They are
intended to help you to quickly identify the location of
certain components and avoid possible hazards when
working on the engine.
Ensure that these stickers are always visible and replace
them if torn or washed up.
Refers to important informations
and instructions to follow before
handling the engine.
Indicates possible electrical hazards.
Indicates hot parts entailing substantial
risks of burns.
Indicates an area containing pressurised
fluids.
Indicates hazardous rotating parts.
Stipulates that no flames or sparks should
be created in the vicinity.
Indicates where to check the coolant
level.
Indicates where to check the engine oil
level.
Indicates the coolant drain orice.
Indicates the oil drain orice.
S02 SAFETY

12
SAFETY PRECAUTIONS
HOT EXHAUST PRECAUTIONS
Servicing machine or attachments with
engine running can result in serious
personal injury. Avoid exposure and skin
contact with hot exhaust gases and
components.
Exhaust parts and streams become very hot during
operation. Exhaust gases and components reach
temperatures hot enough to burn people, ignite, or melt
common materials.
WORK IN VENTILATED AREA
Engine exhaust fumes can cause sickness
or death. If it is necessary to run an engine
in an enclosed area, remove the exhaust
fumes from the area with an exhaust pipe
extension.
If you do not have an exhaust pipe extension, open the
doors and get outside air into the area.
WASTE DISPOSAL
Improperly disposing of waste can threat-
en the environment and ecology. Poten-
tially harmful waste used in engines in-
clude such items as oil, fuel, coolant, fluids
lters and batteries.
Use leakproof containers when draining fluids ; Do not
pour waste into the sea, ground, down a drain, or into
any other water source.
Contact your local environmental or recycling center, or
your dealer for information on the proper way to recycle
or dispose of waste.
UNWANTED ENGINE START
Avoid possible injury or death from engine
runaway. Do not start engine by shorting
across the starter motor solenoid
terminals posts. Engine will start if normal
circuitry is bypassed. Start engine from
operator’s seat.
SAFE MAINTENANCE PRACTICE
Understand service procedures before
doing work. Keep work area clean and dry.
Never lubricate, service, or adjust engine
while it is running. Keep hands, feet, hair
and clothing away from moving parts.
Fix damage immediately. Replace worn or broken parts.
Remove any build up of grease, oil, or debris. On self-
propelled equipment, disconnect battery ground (-)
before making adjustments on electrical systems or
welding.
WORK IN CLEAN AREA
Clean work area and machine before
starting a job. Make sure you have all
necessary tools to do your job. Have the
right parts on hand. Read all instructions
thoroughly ; do not attempt shortcuts.
PROTECTIVE CLOTHING
Wear close tting clothing and safety equipment
appropriate to the job. Operating equipment safely
requires the full attention of the operator. Do not wear
radio or music headphones while operating the engine.
S02 SAFETY

13
SERVICE ENGINES SAFELY
Tie long hair behind your head. Do not
wear a necktie, scarf, loose clothing, or
necklace when you work near moving
parts. If these items were to get caught,
severe injury could result. Remove rings
and other jewelry to prevent electrical
shorts and entanglement in moving parts.
PROPER USE OF TOOLS
Use tools appropriate to the work.
Makeshift tools and unfollowed
procedures can create safety hazards. Do
not use U.S mechanical tools on metric
fasteners (i.e. a 1/2 inch wrench on a 13
mm nut).
Use power tools only to loosen threaded parts and
fasteners. For loosening and tightening hardware,
use the correct size tools. Avoid bodily injury caused
by slipping wrenches. Use only service parts meeting
manufacturer specications.
SUPPORT ENGINES PROPERLY
Always lower the attachment or implement
to the base before you work on an engine.
If the work requires that the engine be
lifted, provide secure system. If left in a
raised position, hydraulically supported
device can settle or leak down. Do not
support engines on any kind of props that may crumble.
Do not work under an engine that is solely supported by
a jack. Follow recommended procedures in this manual.
SAFE ILLUMINATED WORK AREA
Illuminate your work area adequately and safely. Use a
portable safety light for working inside the engine room.
Make sure the bulb is enclosed by a wire cage. The hot
lament of an accidentally broken bulb can ignite spilled
fuel or oil.
PROPER LIFTING EQUIPMENT
Lifting heavy components incorrectly can cause severe
injury or equipment damage. Use expertise of staff
holding relevant(s) legal capacity to operate heavy
lifting equipment, with the know-how of using slings
and chains.
NOISE PROTECTION
Prolonged exposure to loud noise can
cause impairment or loss of hearing. Wear
a suitable hearing protective device such
as earmuffs or earplugs to protect against
objectionnable or uncomfortable loud
noises.
GENSET OUTPUT GENERATED POWER
Genset will deliver a sizeable amount of electrical power
which can be lethal if not handled properly. Thus, any
service, connection or repair on the alternator can only
done by a certied marine electrician.
GUARDS REQUIREMENTS
Rotating cooling system fans, belts,
pulleys, and drives can cause serious
injury. Keep all guards in place at all times
during the engine operation. Wear close-
tting clothes. Stop the engine and be sure that fans,
belts, pulleys, and drives are stopped before making
adjustments, connections, or cleaning near fans and
their drive components.
S02 SAFETY

14
STAYING CLEAR OF ROTATING DRIVE
LINES
Entanglement in rotating driveline can
cause serious injury or death. Keep all
shields in place at all times. Make sure
rotating shields turn freely.
Wear close-tting clothing. Stop the engine and be sure
that all rotating parts and drivelines are stopped before
making adjustments, connections, or performing any
type of service on engine or driven equipment.
PAINT REMOVAL BEFORE HEATING
Avoid potentially toxic fumes and dust.
Hazardous fumes can be generated when
paint is heated by welding, soldering, or in
using a torch.
Paint removal :
• Remove paint a minimum of 100 mm (4 in.) from area
to be affected by heating. If paint cannot be removed,
wear an approved respirator mask before heating or
welding.
• If you sand or grind paint, avoid breathing the dust.
Wear an approved respirator.
• If you use solvent or paint stripper, remove stripper
with soap and water before welding. Remove solvent
or paint stripper containers and other flammable
material from area.
• Allow fumes to disperse at least 15 minutes before
welding or heating.
• Do not use a chlorinated solvent in areas where
welding will take place.
• Do all work in an area that is well ventilated to carry
toxic fumes and dust away.
• Dispose of paint and solvents properly.
HIGH PRESSURE FUEL SYSTEM OPENING
RISK
High-pressure fluid remaining in fuel lines
can cause serious injury. Do not
disconnect or attempt repair of fuel lines,
sensors, or any other components
between the high-pressure fuel pump and
nozzles on engines with High Pressure
Common Rail (HPCR) fuel system. Only technicians
familiar with this type of system can perform repairs.
Consult your engine representative.
AVOID HIGH PRESSURE FLUIDS
Inspect hydraulic hoses periodically – at
least once per year – for leakage, kinking,
cuts, cracks, abrasion, blisters, corrosion,
exposed wire braid or any other signs of
wear or damage. Replace worn or damaged
hose assemblies immediately with approved
replacement parts. Escaping fluid under pressure can
penetrate the skin causing serious injury.
Avoid the hazard by relieving pressure before
disconnecting hydraulic or other lines. Tighten all
connections before applying pressure. Search for leaks
with a piece of cardboard.
SAFE COOLING SYSTEM SERVICE
Explosive release of fluids from pressurized
cooling system can cause serious burns.
Shut off engine. Only remove ller cap
when cool enough to touch with bare
hands. Slowly loosen cap to rst stop to
relieve pressure before removing completely.
AVOID HEAT NEAR PRESSURIZED FLUID LINES
Flammable spray can be generated by heating near
pressurized fluid lines, resulting in severeburns to
yourself and bystanders. Do not heat by welding,
soldering, or using a torch near pressurized fluid lines or
other flammable materials.
Pressurized lines can accidentally burst when heat goes
beyond the immediate flame area.
Any fluid injected into the skin must be surgically
removed within a few hours or gangrene may result.
Doctors unfamiliar with this type of injury should
reference a knowledgeable medical source.
S02 SAFETY

15
WELDING NEAR ELECTRONIC CONTROL
UNIT (ECU)
If welding is required around the engine, or
in the engine room, ask rst for a
permission from the person in charge. Do
not jump-start engine with arc welding
equipment. Currents and voltages
delivered are too high and may cause permanent
damage. Direct welding onto the engine is forbidden.
1. Disconnect the negative (-) battery cable(s).
2. Disconnect the positive (+) battery cable(s).
3. Connect the positive and negative cables together.
Do not attach to engine support frame.
4. Clear or move any wiring harness sections away
from welding area.
5. Connect welder ground close to welding point and
away from control units.
6. After welding, reverse Steps 1-5.
STATIC ELECTRICITY RISK
The removal of sulfur and other compounds in Ultra-Low
Sulfur Diesel (ULSD) fuel decreases its conductivity and
increases its ability to store a static charge. Reneries
may have treated the fuel with a static dissipating
additive.
However, there are many factors reducing the
effectiveness of the additive over time. Static charges
can build up in ULSD fuel while it is flowing through fuel
delivery systems. Static electricity discharge in presence
combustible vapors could result in a re or explosion.
Therefore, it is important to ensure that the entire system
used to refuel your engine (fuel supply tank, transfer
pump, transfer hose, nozzle, and others) is properly
grounded and bonded.
Consult your fuel or fuel system supplier to ensure
that the delivery system is in compliance with fueling
standards for proper grounding and bonding practices.
HANDLE FUEL SAFELY - AVOID FIRE
Handle fuel with care: it is highly flammable. Do not
refuel the engine while smoking or when near open flame
or sparks.Always stop engine before refueling. Prevent
res by keeping engine room clean of accumulated
trash, grease, and debris. Always clean up spilled fuel.
Use only an approved fuel container for transporting
flammable liquids. Do not store fuel container where
there is an open flame, spark, or pilot light such as within
a water heater or other appliance.
BE PREPARED FOR EMERGENCY
Be prepared if a re starts. Keep a rst aid kit and
re extinguisher handy. Keep emergency numbers
for doctors, ambulance service, hospital, and re
department near your telephone.
HANDLE STARTING FLUID SAFELY (ETHER)
Starting fluid is highly flammable. Keep all
sparks and flame away if using it. Keep
starting fluid away from batteries and
cables.
To prevent accidental discharge when storing the
pressurized can, keep the cap on the container, and
store in a cool, protected location. Do not incinerate or
puncture a starting fluid container. Do not use starting
fluid on an engine equipped with glow plugs or an air
intake heater.
HANDLING BATTERIES SAFELY
If not handled properly, batteries are a
potential source of hazards. Excess of
gases in batteries may explode. Keep
sparks and flames away from batteries.
Never use a cigarette lighter to observe
electrolyte level. Use a flashlight to do it. Never check
battery charge in shorting posts with a metal part. Use a
voltmeter or hydrometer.
S02 SAFETY

16
Always remove grounded (-) battery clamp rst and
replace grounded clamp last. Sulfuric acid in battery
electrolyte is poisonous and strong enough to burn skin,
eat holes in clothing, and cause blindness if splashed
into eyes.
Avoid hazards and acid burns in :
• Filling batteries in a well-ventilated area
• Wearing eye protection and rubber gloves
• Avoiding use of air pressure to clean batteries
• Avoiding breathing fumes when electrolyte is
• Avoiding spilling or dripping electrolyte
• Using correct battery booster or charger procedure.
If acid is spilled on skin or in eyes:
• Flush skin with water
• Apply baking soda or lime to help neutralize the acid
• Flush eyes with water for 15-30 minutes.
• Get medical attention immediately.
If acid is swallowed:
• Do not induce vomiting
• Drink large amounts of water or milk, but do not
exceed 2 L (2 qt.)
• Get medical attention immediately.
PREVENT BATTERY EXPLOSIONS
Keep sparks, lighted matches, and open
flame away from the top of battery. Battery
gas can explode. Never check battery
charge by placing a metal object across
the posts. Use a volt-meter or hydrometer.
Do not charge a frozen battery: it may
explode. Warm up battery to 16°C (60°F) before doing it.
S02 SAFETY
WARNING !
Battery posts, terminals, and related accessories contain
lead and lead compounds. Rinse hands after handling
batteries.
FROST PROTECTION - WINTERIZATION
See Maintenance Section 08 - Raw Water System - Risk
of icing conditions / Protection against frost.
WARNING !
When the engine has been set for winterization, place
“DO NOT OPERATE” labels onto taps, valves, parts of
equipment which have been turned off. Place a large and
visible reminder on the wheelhouse dashboard.
LIVE WITH SAFETY
Before returning engine to customer, make sure engine
is functioning properly, especially the safety systems.
Make sure that all guards and shields are in place.
PREVENT ACCIDENTS
IMPORTANT !
When engine is OFF, always set the transmission lever to
neutral position.

17
S03 FLUIDS
SUMMARY
Table des matières
S03 FLUIDS 17
SUMMARY 17
FUELS 18
DIESEL FUEL 18
SULPHUR CONTENT 18
WINTER DIESEL 18
WATER IN FUEL 18
MICROORGANISMS IN FUEL 18
INERT IMPURITIES IN FUEL 19
DIESEL LUBRICANTS 19
PRECAUTIONS TO UNDERTAKE 19
OILS RECOMMENDED OR AUTHORIZED 19
GENERALITIES 19
OILS VISCOSITY 20
CORRESPONDENCE BETWEEN API AND ACEA OILS 20
COOLANTS 21
COOLANT DRAIN INTERVALS 21
WATER PROPERTIES 21
WATER PROPERTIES TO MIX WITH COOLANT CONCENTRATE 21
OTHER COOLANTS 22
FREEZE PROTECTION 22
REQUIRED QUANTITY OF COOLANT VS COOLING SYSTEM CAPACITY 22
OPERATING ENGINE IN WARM TEMPERATURE CLIMATES 22
DISPOSING OF WASTE FLUIDS 23
ANNEX 24
ANNEX 1. VOLUME OF GLYCOL 24

18
S03 FLUIDS
FUELS
DANGER !
Fuels and some fluids on board ships are easily flamma-
ble. Handle fuels with care and respect all safety rules.
Do not refuel the tank while the engine is running. Do
not smoke during the lling process or in the engine
compartment. Ventilate the engine compartment be-
fore starting. Wear protective gloves and eye protective
glasses. Avoid synthetic clothing which can melt when
ignited. Always keep a re extinguisher nearby.
DIESEL FUEL
Diesel approved by Nanni Industries on the engines of
the rm are as follows :
• EN 590 (Europe),
• ASTM D975 (U.S.A and territorial waters assimilated,
particularly in the Caribbean and Pacic areas),
• BS 2869 Part 1 Class A1 (G.B),
• JIS KS2204 Fuel N°02 (Japan).
These regulations are in compliance with ISO 8217 DMX.
SULPHUR CONTENT
European Union :
Low-sulphur diesel (<50 mg/kg sulphur) [EN590], or
sulphur-free (<50 mg/kg sulphur [DIN EN590], [ULSD].
Non-European Union :
Sulphur contained in diesel fuel not in accordance with
EN 590 regulation signicantly reduces the performance
of the engine lubricant. More frequent oil changes
are mandatory and also induce much shorter fuel
lter replacement intervals. Request a certicate of
specications from the fuel distributor and forward it
to the nearest Nanni local representative for advice and
action.
Fuels not intended for the operation of marine engines
or with very high sulphur content can cause irreparable
damage to the engine and are not covered by any
warranty from Nanni Industries.
WINTER DIESEL
Without specic mention, these distributed fuels satisfy
the climates in which they are geographically available.
Generally speaking, summer diesel fuel complying with
EN 590 is usable down to a temperature of 0°C [32°F],
and the winter formulated fuel, down to a temperature
of -20 °C [-4°F] (type No. 01-D in U.S.A). In any case,
consult your local distributor to ensure compatibility of
the fuel.
NOTE !
Additions of petroleum distillates, petrol, solvents, un-
approved additives to improve the fluidity of diesel fuel
at very low temperatures can cause irreparable engine
damage and will void all contractual warranties and re-
sponsibilities from Nanni Industries.
WATER IN FUEL
Water is a non-flammable and incompressible liquid.
For this reason, its presence is particularly harmful
to the operation of the engine and to the entire fuel
injection system. Water easily enters the tank by simple
condensation and especially when it is left or partially
empty. Fill up the fuel tank before storage/winter storage.
Check the water-diesel separator regularly and clean it
as required. Anticipate the replacement of the fuel lter.
If a large quantity of water is present in the tank, drain it
and flush the entire fuel and injection system with clean
diesel fuel. Water in the diesel fuel can cause irreparable
damages to the engine and are not covered by any
warranty from Nanni Industries.
MICRO-ORGANISMS IN FUEL
The presence of water in the tank automatically leads
microorganisms and bacteria to grow and will mix with
the fuel. These microorganisms grow rapidly with a
favorable temperature. Depending on their size, they can
pass through lters and penetrate in the fuel injection
system and cause a total engine failure which is not
covered by Nanni Industries warranty. In the event of
fuel contamination, contact the nearest Nanni agent
who may, if necessary, use an approved disinfectant.

19
INERT IMPURITIES IN FUEL
Others impurities than microorganisms and bacteria do
exist : they are rust debris falling out from the internal
walls of the metal tanks. Some types of berglass tanks
are also subject to osmosis over time and tiny particles
may come off internal walls and circulate in the diesel
fuel. These impurities can pass through the lters and
creep into the injection system and cause a total failure
of the engine which is not covered by Nanni Industries
warranty.
DIESEL LUBRICANTS
PRECAUTIONS TO UNDERTAKE
Engine oils must be handled with care, both for reasons of
safety and the risk of pollution for the environment.
Due to their inertia, hot oils retain a higher temperature
than expected. A hot oil can cause severe burns on the skin
and leave after effects. This phenomenon is emphasized
when draining used oil. Wear protective gloves and eye
protective glasses. Avoid synthetic clothing.
To avoid introducion of impurities into the engine
during lling or topping up, be sure to thoroughly clean
the ller inlet hole rst and use a container free of any
contamination.
OILS RECOMMENDED OR AUTHORIZED
It is necessary to differentiate the breaking-in oils from the
lubricating oils after running-in. All engine manufacturers
do not have the same recommendations. User manuals
provide information about proper oils to use for running-
in (if recommended) and at which running hours and of
time lapse of run.
GENERALITIES
The oil used in the engine must have a viscosity in
accordance with the ambient temperatures at which the
engine is operated, according to API (American Petroleum
Institute) and SAE (Society of Automotive Engineers)
classications.
Following the entry into force of strict antipollution
regulations, engine oils have been developed for use with
low sulphur fuels (LSD or ULSD). The oils classied “CF”
being now obsolete, use oils “CJ-4, CI-4, CH-4”.
The oils “CH-4” do come in replacement of the “CD, CJ,
CF-4 and CG- 4“. In all cases, the use of high sulphur
fuel signicantly reduces the span between oil changes
whichever oil is used.
S03 FLUIDS

20
OILS VISCOSITY
Viscosity is a characteristic of oil flow or fluidity, dened
by two numbers: cold and hot. Example :
15W-40: cold viscosity index followed by the letter W
signifying winter. A low value indicates good fluidity at
low temperatures.
15W-40: hot viscosity index (100 °C - summer). A high
value indicates a better lubrication at hot temperatures.
Normative instances :
• Society of Automotive Engineers (SAE),
• American Petroleum Institute (API),
• Association des Constructeurs Européens
d’Automobiles (ACEA),
• Japanese Automobile Manufacturer Association
(JAMA).
IMPORTANT !
On manufacturers side, oils are subject to constant im-
provements, particularly concerning the additives al-
lowing a better resistance towards oxydation and fuel
economy. Refer to the expertise of the local Nanni rep-
resentative regarding the oil that best suits your engine.
CORRESPONDENCE BETWEEN API AND
ACEA OILS
API ACEA - JAMA
CG-4 ACEA E1
CF-4 ACEA E2 ; ACEA E3
CH-4 ACEA E5 ; JAMA DH 5
CI-4 ACEA E7
CJ-4 ACEA E9 ; JAMA DH 2
DIESEL SULPHUR CONTENT
NOTE
Diesel sulphur content affects engine oil and lter service
intervals.
Use of diesel fuel with sulphur content less than 2000
mg/kg (2000 ppm) is RECOMMENDED.
Use of diesel fuel with sulphur content of 2000-5000 mg/
kg (2000-5000 ppm) REDUCES by 50% the oil and lter
change interval.
Do not use diesel fuel with sulfur content greater than
5000 mg/kg (5000 ppm).
IMPORTANT !
To avoid engine damage:
Reduce oil and lter service intervals by 50% when using
BioDiesel blends greater than B20. Oil analysis may allow
longer service intervals.
Use only approved oil types.
S03 FLUIDS