Nanni QMF 6M Instruction Manual
MARINE GENERATING SET
INSTRUCTION MANUAL
MU_QMF6M_970315608_ENG
QMF 6M
Contents
Safety precautions ...................................................................................................................3
Presentation ..............................................................................................................................6
Fuel supply ............................................................................................................................................6
Environmental responsibility ..................................................................................................................6
Certifi ed engines ...................................................................................................................................6
Spare parts ............................................................................................................................................6
Identifi cation numbers ...........................................................................................................................7
Checks before commissioning ..............................................................................................................7
Principal parts of the generator set .......................................................................................................8
Instrument panel ....................................................................................................................................9
Operation of the generator set................................................................................................10
Before starting ......................................................................................................................................10
Starting the generator set ......................................................................................................................10
During operation ...................................................................................................................................11
Engine safety shutdown switches ......................................................................................................11
Circuit Protection ................................................................................................................................11
Stopping the generator set ...................................................................................................................11
Maintenance ..............................................................................................................................12
Service Schedule ..................................................................................................................................13
Fuel system ...........................................................................................................................................14
Bleeding the fuel system ....................................................................................................................14
Replacing the fuel filter .......................................................................................................................14
Replacing the fuel prefilter .................................................................................................................14
Draining the water from the fuel prefilter ...........................................................................................14
Lubrication system ................................................................................................................................15
Checking the oil level ........................................................................................................................15
Drain the engine oil ............................................................................................................................15
Replacing the oil filter .........................................................................................................................15
Cooling system - Coolant ......................................................................................................................16
Draining the coolant ...........................................................................................................................16
Cleaning the heat exchanger .............................................................................................................16
Coolant filling ......................................................................................................................................16
Cooling system - Seawater system .......................................................................................................17
Cleaning the seawater filter ...............................................................................................................17
Seawater pump and impeller ..............................................................................................................17
Siphon break ......................................................................................................................................17
Anti corrosion Zinc anode ...................................................................................................................17
Intake and exhaust system ....................................................................................................................18
Air filter ...............................................................................................................................................18
Exhaust system ..................................................................................................................................18
Engine electrical system ........................................................................................................................18
Battery ................................................................................................................................................18
Wires and connectors .........................................................................................................................18
Alternator Excitation ...........................................................................................................................18
Generator set storage procedure ..........................................................................................................19
Preservation procedure ......................................................................................................................19
Restarting the generator set ...............................................................................................................19
Troubleshooting ............................................................................................................... ........20
Technical specifi cations ..........................................................................................................22
Installation recommendations.................................................................................................23
3
Safety precautions
Read this chapter carefully as it concerns the safety.
Most accidents are caused by failing to follow basic
safety rules. Be aware of the possible risks involved in
handling the generator set and make sure you take the
necessary precautions to protect theself, those around
you and the equipment.
This manual contains important safety indications and
information.
They are as follows:
I Warning! : This symbol indicates the risk of acci-
dents and serious personal injury, substantial property
damage or serious mechanical faults if the instructions
are not followed.
I Caution! : Indicates a risk of personal injury and/or
property damage when handling a component.
Notice: Indicates that important information must be
known in order to facilitate handling or in particular cases.
Using and handling a generator set entails risks that
could prove to be extremely dangerous. Some work
requires specifi c knowledge and equipment. This work
should be carried out by Nanni Diesel authorized personnel or by a professional. If you have to work on the
generator set, carefully follow the safety instructions set
down in this manual.
High voltage transferred to the load during testing may
cause personal injury and equipment damage. Do not
use the safeguard circuit breaker in place of the line
circuit breaker. The safeguard circuit breaker does not
disconnect the generator set from the load.
Short circuits. Hazardous voltage/current can cause
severe injury or death. Short circuits can cause bodily
injury and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove all jewelry before servicing the equipment.
Handling the capacitor. Hazardous voltage can cause
severe injury or death. Electrical shock results from
touching the charged capacitor terminals. Discharge
the capacitor by shorting the terminals together.
Electrical backfeed to the utility . Hazardous backfeed
voltage can cause severe injury or death.
Connect the generator set to the building/marina electrical system only through an approved device and after
the building/marina main switch is opened. Backfeed
connections can cause severe injury or death to utility personnel working on power lines and/or personnel
near the work area. Some states and localities prohibit
unauthorized connection to the utility electrical system.
Install a ship-to-shore transfer switch to prevent interconnection of the generator set power and shore power.
I Hazardous Voltage/ Electrical Shock
starting
Hazardous voltage and moving rotor can cause severe
injury or death. Operate the generator set only when all
guards and electrical enclosures are in place.
Hazardous voltage can cause severe injury or death.
Electrocution is possible whenever electricity is present.
Open the main circuit breakers of all power sources before servicing the equipment. Confi gure the installation
to electrically ground the generator set, transfer switch,
and related equipment and electrical circuits to comply
with applicable codes and standards. Never contact
electrical leads or appliances when standing in water or
on wet ground because these conditions increase the
risk of electrocution.
Disconnecting the electrical load. Hazardous voltage
can cause severe injury or death. Disconnect the generator set from the load by opening the line circuit breaker
or by disconnecting the generator set output leads from
the transfer switch and heavily taping the ends of the
leads.
Testing live electrical circuits. Hazardous voltage or
current can cause severe injury or death. Have trained
and qualifi ed personnel take diagnostic measurements
of live circuits. Use adequately rated test equipment
with electrically insulated probes and follow the instructions of the test equipment manufacturer when performing voltage tests. Observe the following precautions
when performing voltage tests:
• Remove all jewelry.
• Stand on a dry, approved electrically insulated mat.
• Do not touch the enclosure or components inside the
enclosure.
• Be prepared for the system to operate automatically.
4
Safety precautions
I Exhaust gas
Exhaust gases contain carbon monoxide. This colourless and odourless gas is extremely harmful and could
lead to poisoning which could result in loss of consciousness or death. The fi rst symptoms of carbon monoxide
intoxication are as follows:
• Dizziness
• Nausea
• Headache
• Throbbing temples
• Vomiting
• Fatigue and falling asleep
• Tense muscles
If you or anyone else in the vicinity of the generator set
experiences any of these symptoms, leave the area of
operation of the generator set and fi nd fresh air. If the
symptoms persist, consult a doctor and have the generator set checked.
I Risk of burns
Never touch the hot parts of the generator set or the
exhaust circuit.
An operational generator set gets very hot: the exhaust
elbow and pipe, turbocompressor, starter, oil sump, oil,
coolant in the hoses and pipes are hot and can burn.
Fluids ejected under pressure can cause serious injury.
Release all the pressure in the circuits before removing
the caps.
Never open the oil circuit caps when the generator set
is operational and/or hot.
Never start or run the generator set when the oil fi ll cap
is not screwed on as hot oil could spray out.
If you come into contact with any of these fl uids, consult
a doctor immediately.
If the generator set gets too hot, switch it off and discon-
nect it and wait for it to cool down before handling.
I Risk of fi re
Do not smoke near the generator set and keep it away
from sources of ignition (fl ames or sparks) or any other
potential fl ammable vapour or liquid sources.
Do not run the generator set without an air fi lter.
Do not run the generator set in an area in which fl am-
mable or explosive materials are stored or where gas is
present. Ensure there are no fl ammable liquids in the
engine compartment.
Immediately clean up any liquids spilled over theself or
the fl oor and keep the engine compartment clean and
accessible so as to minimise the risk of fi re. Be careful
as fuel can burn.
I Risk of explosion
Explosions caused by fuel vapour can cause serious
injury! Carefully follow the safety rules when fi lling the
fuel.
Open and ventilate the storage area of the generator
set after fi lling. Check that there are no fuel vapours or
leaks before starting the fan (if fi tted). Switch the fan on
for 5 minutes before starting the generator set.
All fuel vapours are fl ammable and explosive. Be care-
ful when handling and storing fuel. Store the fuel in a
ventilated area away from sources of ignition (sparks or
fl ames) and out of the reach of children.
Stop the generator set before fi lling with fuel or lubri-
cant. Do not smoke near the generator set and keep it
away from sources of ignition (fl ames) when fi lling with
fuel and/or lubricant. Wear gloves when investigating
possible leaks.
Do not alter or damage the fuel circuit. Close the fuel
circuit whenever you work on it.
Ensure you always have an appropriate working extinguisher to hand.
I Accidental starting
Accidental starting can cause serious injury and even
death!
Disconnect the battery before working on the generator
set.
Ensure no one is alongside the generator set or working
on the set before starting it.
Ensure all the protection mechanisms are in place before starting the generator set.
I Risk of battery explosion
A battery explosion can cause serious injury and even
death!
Do not smoke near the batteries and keep them away
from sources of ignition (fl ames or sparks). They pro-
duce hydrogen which could ignite or explode on contact
with an electrical arc or a fl ame. Switch off all electrical
appliances in the vicinity when you are working on the
batteries. Ensure the battery storage compartment is
corrected ventilated.
Avoid touching the battery terminals with metal tools so
that no sparks are created which could cause an explosion. Remove the rings, bracelets and necklaces before
handing the batteries.
5
Safety precautions
I Battery acid
The acid in batteries can cause serious injury and even
death!
When servicing the batteries, wear protective gloves
and goggles. Batteries contain sulphuric acid which is
highly corrosive.
Acid can spurt from batteries when they are handled.
If the acid comes into contact with the skin, rinse thoroughly in fresh water and consult a doctor.
I Exhaust gas
Ensure the exhaust circuit correctly expels the gas produced by the generator set.
Regularly check that the exhaust circuit is free of leaks
and that the exhaust elbow is correctly affi xed.
Operate the generator set in a well aerated and ventilated area away from other people. Run the fan when
the generator set is operational.
I Rotating parts
Rotating parts can be extremely dangerous and cause
serious injury and even death!
Do not work on the generator set when it is operational.
If work on the engine when running is absolutely necessary, do not touch any hot or rotating parts.
Baggy clothing, hair or objects could be pulled in and/or
caught and cause serious injury or substantial property
damage.
Do not wear bracelets, necklaces or rings when working
on a generator set.
Check that the bolts and screws are properly tightened
and that the protection mechanisms are in place.
Do not check the fl uid levels or tension of the alternator
belt when the generator set is operational.
I Maintenance and spare parts
Nanni Diesel engines are designed to meet the different
emission standards while delivering maximum service
life and reliability.
Regularly servicing and replacing parts with original
Nanni Diesel parts will ensure the generator set continues to function optimally.
These parts can be ordered from all Nanni Diesel dealers throughout the world.
I Chemical products
The different fl uids used to run the generator set are a
health hazard.
Carefully read the instructions on the packaging of
these products and always check that the ventilation in
the hold space is adequate.
I
Boats with metal hulls
Generator sets installed on vessels whose hull is made
of metal must be bipolar. If the hull is made of metal alloy and the generator is not bipolar, stop the generator
and contact an authorized dealer.
I Lifting the generator set
To lift the generator set, use the hoisting eyes on the
appliance.
Always check the robustness and overall condition of
the lifting equipment. Use suitable gear (cables, beams,
machines, etc.) to lift the generator set. Check that the
gear is capable of lifting the set.
Lifting cables and chains must be able to move parallel
to each other.
Do not forget that any additional equipment mounted on
the generator set could alter its centre of gravity. When
lifting the set, it should remain as parallel as possible to
the ground.
6
Presentation
Thank you for choosing a Nanni Diesel generator
set!
Contact a Nanni Diesel authorized dealer for the servicing of the equipment. A list of dealers can be found on
our web site:
www.nannidiesel.com
Nanni Diesel generator sets are the product of many
years of experience in the development of marine engines and equipment designed for use in open seas.
Before using, ensure you have the correct manual for
the set. We will explain how to identify the equipment
and its principal specifi cations in the chapters to follow.
If you don’t have the correct manual, please contact a
Nanni Diesel authorized dealer.
Carefully read all of this generator set instruction manual before starting the engine. Pay particular attention
to the information on personal safety . This manual must
always be to hand where the generator set is used.
Check the overall condition of the generator set before
and after using it each time so that you familiarise with
the different components and can more easily detect
any fuel, oil or coolant leaks or abnormal wearing of the
principal parts.
All the information and specifi 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 Diesel without notice.
Certain images, diagrams or equipment described in
this manual may not exactly represent (or be part of)
the generator set order.
Fuel supply
Ensure that the fuel contains no residues. If it does, use
special fi lters. A void using fuel mixed with water or other
substances as you may damage the engine.
When draining the oil and changing the oil or fuel fi l-
ter, dispose of the waste in the appropriate container.
These fl uids cause major damage to fl ora and fauna if
discharged into nature.
The different fl uids used to run the engine are a health
hazard. Carefully read the instructions on the packaging
of these products and always check that the ventilation
in the storage compartment is adequate.
Certified engines
The engine type can be exhaust emission certifi ed. It
means that Nanni Diesel guarantees that all engines of
the same type that are manufactured are approved and
certifi ed by the authorities.
However, special requirements for maintenance and
service are to be followed:
• Only Nanni Diesel replacement parts must be used.
• Maintenance intervals must be observed.
• The engine must not be modifi ed in any way.
• Service of the fuel system must always be carried
out by an authorized Nanni Diesel workshop.
• No modifi cations to the air intake and exhaust sys-
tem may be undertaken.
• Seals may only be broken by authorized personnel.
Nanni Diesel’s responsibility for the engine specifi cation
being in accordance with the certifi cation will be invali-
date if one or several of this conditions are not followed.
Spare parts
You can order the emergency parts below from any
Nanni Diesel authorized dealer. Keep a copy of the list
of parts with the generator set.
These emergency parts could allow you to repair the
engine in the event of a fault.
The engine performances are infl uenced by the fuel
temperature, the temperature and relative humidity of
the exhaust air and by the altitude.
Environmental responsibility
Nanni Diesel designs its engines to have minimum environmental impact and a maximum service life. This
objective, however, can only be achieved with the full cooperation of the user. Our operating and maintenance instructions are to help you to protect the generator set and
adopt responsible behaviour vis-to-vis the environment.
Ensure you only use the fuels and oils recommended
in this manual. Using another type of fuel or oil could
cause major generator malfunctions: higher consumption, reduced engine service life, greater discharge of
exhaust gases.
• V-belt
• Seawater pump impeller kit
• Engine oil fi lter
• Fuel fi lter (fi ltering part)
• Injection tube
• Glow plug
• Air fi lter
• Nanni Diesel blue paint
Certain items may vary depending on the order. Contact
a authorized dealer for more information.
7
Presentation
This instruction manual is for the Nanni Diesel generator set QMF6M.
This set is based on a 2 cylinders Diesel engine. Refer
to the “Technical specifi cations” section for the specifi -
cations of your generating set.
Identification numbers
The generator set has 2 identifi cation plates: one for the
generator set in its whole and one for the engine.
Keep these plates accessible and in good condition.
Record and keep the engine and generator serial
number, designation and code. These numbers will be
useful when working on the generator set, for ordering
parts or warranty claim.
The plate shown below is on the generator. It contains
all the information identifying the generator in accordance with ISO 8528 Standard and CE mark.
Marine Generating Set
CODE
Model: Year: RPM:
FRVij3.5 kW* )1
230V $ 50Hz
Protection device
Neutral state
Rating according to ISO 8528
SN
SNEngine
SNAlternator
Checks before commissioning
I Caution! : The generator set must be installed by a
shipyard or authorized representative following the on-
board assembly instructions.
The electrical c onnections must also be c arried out by
qualifi ed personnel. The electrical installation must be
equipped with all the mechanisms for protecting people
and property in ac cordance with the applic able standards.
Preparations before starting
When the set has been installed on board and before
removing the protective elements covering the different
orifi ces, clean the exterior surface of the generator set.
For transportation reaso ns, so me of our generator sets
are delivered without their operating fl uids. In all cases,
you must:
• Check the levels and fi ll the engine oil if necessary.
• Prime the seawater system.
• Fill the cooling system with coolant and vent if necessary.
• Check the tightness of the different connections
and drain caps (coolant and oil).
• Check the tightness of the alternator electrical lugs
(check the cabling by referring to the corresponding
documentation), battery terminals, circuit breaker,
connection of extension sec tions, battery electrolyte level.
• Make a fi nal check of the fi xing elements and a vis-
ual check of the generator set as a whole.
Some of these operations are explained in more detail
later in this manual.
I Caution! : The modern fuel engine is precision
equipment that requires the use of a high- quality fuel
and lubricant.
8
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