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Service schedule

NOTICE:

 An operation requiring service every day requires service after 

100 hours or every year, and so on. Some components may not be part of 
the engine ordered. 

Operations marked with 

 should be done in a Nanni workshop. 

* Operations to perform after 20 operating hours or 45 days after commis-
sioning.

BEFORE OPERATING THE ENGINE 

 

Check the engine & transmission oil level. Top up if necessary *. 

 

Check the coolant condition and coolant level. Top up if necessary *. 

 

Check the raw water filter and clean as necessary *. 

 

Drain water from the fuel prefilter *. 

 

Check the condition of the battery *. 

 

Check the warning lamps of the instrument panel *. 

 

Control and adjust general water tightness *. 

 

Check the stuffing box condition *. 

EVERY 100 OPERATING HOURS / AT LEAST EVERY YEAR 

 

Clean the air filter. Change if needed. 

 

Change the fuel filter *. 

 

Check the condition and the tension of the belts. Change if needed*. 

 

Check the anodes. Change if needed*. 

 

Check and tighten the electrical connections & cables, the clamps and 

screws *. 

 

Remove the sediment from the fuel tank and drain the fuel tank. 

 

Check the control unit, the condition of the cables, grease the cables *. 

31

Summary of Contents for N4.115

Page 1: ...Nanni marine engine Operator s manual Engines N4 115 N4 140...

Page 2: ...manuel en Fran ais sur notre site Web l adresse www nannidiesel com Italiano Scarica una copia del manuale in lingua Italiano sul nannidiesel com Deutsch Sie k nnen eine Kopie dieses Handbuchs in Deu...

Page 3: ...ne main components 15 Instruments panel 17 Standard panel 17 Instrumentation 18 Operation 23 Before starting 23 Starting the engine 24 During operation 26 Stopping the engine 28 Maintenance 30 Service...

Page 4: ...th precise specifications and strict production methods Before operating the engine make sure that this manual is applicable to the engine Refer to the Identification plate if you are not sure about t...

Page 5: ...ment the following symbols are used to ease the reading Indicates that the text is conti nued on the following page Indicates the end of a section Content and updates All the informations and specific...

Page 6: ...an order an emergency kit from any Nanni authorized dealer The engine emergency kit contains several components to carry out simple repair in the event of a fault Always have an complete emer gency ki...

Page 7: ...to follow before handling the engine Indicates possible electrical hazards This icon indicates a risk of fire Indicates hot parts entailing substantial risks of burns Indicates an area containing pres...

Page 8: ...gets very hot the exhaust system tur bocompressor if equipped starter oil sump oil coolant in the hoses and pipes are hot and can burn Fluids ejected under pressure can cause serious injury Release al...

Page 9: ...nsure you always have an appropriate working fire extinguisher to hand Hazardous Voltage Electrical Shock Electrocution is possible whenever electricity is present Hazardous voltage can cause severe i...

Page 10: ...which could ignite or explode on contact with an electrical arc or a flame Switch off all electrical appliances in the vicinity when you are working on the batteries Ventilate correctly storage batte...

Page 11: ...g for possible leaks Water ingress The engine should be protected against from water ingress by any means Water ingress leads to complete engine failure This is not cover under any warranty terms Wate...

Page 12: ...0 hours of operation Do not race the engine while it is cold Do not operate it at full load except for short periods Never run the engine at constant engine speed for long periods during the break in...

Page 13: ...operation of the remote control Power Take Off Some engines can be fit with a Power Take Off system This sys tem allows to power accessories like bilge pump watermaker etc NOTICE Any mechanical power...

Page 14: ...has a lower BTU heat content rating Check the grade of fuel being used before troubleshooting for low power com plaints in cold weather operation In all cases fuel quality and fuel sulfur content mus...

Page 15: ...structions stated in the relevant manuals should be follow by the user Nanni s responsibility for the engine specification being in accordance with the certification will be invali date if one or seve...

Page 16: ...tional equipment etc ARE FORBIDDEN WITH OUT WRITTEN AUTHORIZATION FROM NANNI INDUSTRIES S A S Any modification will void the War ranty Damage caused by failure to follow operation instructions or inco...

Page 17: ...stribution passengers equip ments etc inside the boat has an impact on the behaviour of the boat when cruising Depending the position of the load the behaviour of the boat may change particularly in t...

Page 18: ...lternator 2 Alternator belt 3 Starter 4 Fuses box 5 Air filter 6 Fuel filter 7 Fuel feed pump 8 Fuel injection pump 9 Heat exchanger 10 Coolant filler plug 11 Coolant pump 12 Recovery tank 13 Heat exc...

Page 19: ...N4 115 N4 140 16 1 2 3 13 15 7 9 4 6 19 14 16 5 8 10 11 17 18...

Page 20: ...sure about their function Depending the boat the instruments can be installed directly on a dashboard without the panel shown here On some boats a panel without key is used as an additional instrument...

Page 21: ...ges RPM x 100 Hourmeter Voltmeter The display at the bottom of the dial shows the operating time of the engine in hours When the system voltage is con nected the display indicates the voltage at the b...

Page 22: ...If the oil pressure in the lubrication circuit is too low the acoustic alarm sounds and the corresponding warning lamp comes on Coolant temperature indicator Indicates the coolant temperature in Celsi...

Page 23: ...high can lead to severe engine damage Do not operate the engine if the problem persists and contact a Nanni workshop as soon as possible BATTERY CHARGE This warning lamp comes on when the system volta...

Page 24: ...cies and check the engine oil level and the oil filter condi tion Operate the engine when the oil pressure is too low can lead to severe engine damage Do not operate the engine if the pro blem persist...

Page 25: ...Note 22...

Page 26: ...ter system if neces sary 2 Start the compartment fan if fitted for at least five minutes Otherwise open the hold 3 Check that there is sufficient fuel 4 Move the control lever to the neutral position...

Page 27: ...NOTICE When starting the engine for the first time let it run at idle for several minutes and check for leaks or malfunction Starting using booster batteries I CAUTION Make sure to use batteries with...

Page 28: ...ust outlet at the hull If the water does not flow stop the engine and check the raw water system Panel without key 1 Switch the key of the main panel to ignition if equipped 2 Move the control lever t...

Page 29: ...l consumption Deposits may also form in the injec tion system if the engine do not reach its nominal operating temper ature regularly Run the engine at full throttle regularly in order to burn off any...

Page 30: ...and create hydrodynamic resistance Put the lever in neutral the propeller rotate and create lower hydrodynamic resistance than in astern I CAUTION Sailing with the engine stopped and the lever in neu...

Page 31: ...The engine stops Turn the key of the main panel counter clockwise All indicators turn off I CAUTION Even after the engine has stopped some components and fluids remain hot and pressuri sed for severa...

Page 32: ...int the anodes Furthermore when the boat is at anchor or in port for extended period water can fill the exhaust system via the exhaust outlet It is necessary to drain regularly the wa terlock when the...

Page 33: ...ever some regular checks particularly those made each time the engine is used can only be carried out by the user Few other operations are explained further on so that you can work on the engine in an...

Page 34: ...ry Check the raw water filter and clean as necessary Drain water from the fuel prefilter Check the condition of the battery Check the warning lamps of the instrument panel Control and adjust general w...

Page 35: ...OURS AT LEAST EVERY 2 YEARS Change the thermostat of the heat exchanger Change the heat exchanger filler plug Drain and change the coolant Clean the coolant system Check and clean the heat exchanger t...

Page 36: ...tension of the cable if necessary If any defect appears rust crack etc the control cable must be changed Stuffing box I DANGER A stuffing box lubricated with raw water taken from the engine cooling sy...

Page 37: ...ese operations when the engine is stopped and cold Make sure that no dust or dirt enter the intake manifold The air filter reduces the level of noise made by the air intake and prevent particles from...

Page 38: ...fuel feed pump and is injected into the combustion chamber by the injection pump A fuel filter is placed between the feed pump and the injection pump The injection pump delivers a larger amount of fu...

Page 39: ...the fuel injection system If the boat is not used for an ex tended period fill the tank to the maximum level Fuel prefilter The fuel prefilter is an optional ex tra not in the scope of supply of the...

Page 40: ...ir in the fuel system Air bleeding Bleeding the air in the fuel system is necessary After a maintenance operation on the fuel system If the fuel tank has been emp tied The engine has not been started...

Page 41: ...e venting screw 3 Start the engine for 5 to 10 sec onds to let the electric fuel feed pump bring fuel to the injection pump 4 Pump the fuel using the lever until fuel free of air bubbles flows from th...

Page 42: ...climatic conditions Oil level Adding engine oil Check the engine and transmission oil level before starting the engine Always make sure that the level is in the safe range The oil level should be with...

Page 43: ...e the oil filter with a filter wrench Turn the filter counter clockwise Remove the gasket 2 Clean the mating surface in order to prevent impurities from entering the engine 3 Apply a film of oil on th...

Page 44: ...oled by heat exchange with raw water taken from a sea cock A Keel Cooling system can also be used to cool the coolant instead A thermostat maintains the coolant at a proper and constant operating temp...

Page 45: ...ended period Poor quality antifreeze has poor content of corrosion preventive The content further becomes less potent with the dilution of water Choose additive that will not have any adverse effects...

Page 46: ...filler cap 6 Check the coolant level in the recovery tank if fitted It should lie between the Min and Max mark of the recovery tank Add clean water if necessary NOTICE The Min and Max level indicated...

Page 47: ...r into the coolant system Refer to the chapter TECHNICAL DATA to know the coolant capac ity of the heat exchanger For Keel Cooling system or when using a water boiler the coolant capacity must be adap...

Page 48: ...ant heat is dissipated by pass ing through tubes incorporated to the hull NOTICE If there s any risk of frost raw water system should be drained Siphon breaker I DANGER Close the sea cock before any o...

Page 49: ...correct position in case of rein stallation 5 Carefully remove the impeller using an extractor 6 Inspect the impeller Check for damaged cracked broken miss ing or flattened vanes Change the impeller...

Page 50: ...l the components and open the sea cock Start the engine and check for leaks NOTICE When the boat is out of water check that the through hull is not obstructed by mud or algae Raw water system Draining...

Page 51: ...n the vicinity of the engine the propel ler and the exhaust outlet Put the lever in neutral and start the engine 5 Let the engine run few minutes at idle Add fresh water in the container if necessary...

Page 52: ...pears Tighten the cable terminals and lubricate them with appropriate grease Fuses The engine electrical system is protected from electrical overload damage by fuses If the electrical system does not...

Page 53: ...ectrolyte level is not adjustable maintenance free battery type do not use or charge the battery if the fluid level stands below the lower limit level When adding electrolyte unscrew the vent plugs bu...

Page 54: ...and the alternator Visually check the belt for exces sive wear frayed cords etc If any defect has been found change the belt Check that it fits properly in the pulley Also check its tension The defle...

Page 55: ...ature 25 C When cruising at high speed or when there s a strong current Important relation difference between the cathode and anodic surfaces Anodes in magnesium or zinc are generally used to protect...

Page 56: ...or damp They must be clamped and free from any mechanical constraints If the boat is connected to shore power the protector ground must never be in the boat Shore pow er should always have a ground fa...

Page 57: ...the engine is stopped and cold 1 Remove the key from the panel 2 Close the sea cock 3 Drain the raw water system 4 Remove the set formed by a cap a seal and the anode 5 Remove the deposits from the s...

Page 58: ...all water in the seawater circuit Long term storage procedure Complete the nearest periodic maintenance inspections and op erations before performing the long term storage procedure 1 Drain and chang...

Page 59: ...al cleaning of the engine and control its condition 2 Drain and change the engine and transmission oil 3 Change oil filters 4 Drain the coolant from the sea water system 5 Check the condition of the r...

Page 60: ...otor turns but the engine does not start 1 2 3 4 5 6 7 The engine does not reach its rated speed at wide open throttle 2 3 4 5 6 7 12 14 15 16 17 26 28 The engine operate unevenly 1 2 3 4 5 6 7 14 15...

Page 61: ...in neutral Stop control pulled out 14 Too much load on board 15 Fouling on underwater hull drive or propeller 16 Defective incorrect propeller 17 Faulty operation of control lever control cables 18 Lo...

Page 62: ...Turbo Intercooler Compression ratio 19 1 Idle speed clutch disengaged rpm 825 Rated engine speed Max power rpm 2600 Max RPM at wide open throttle rpm 2820 Recommended cruising speed rpm 2080 2340 Weig...

Page 63: ...g kWh at wide open throttle 245 Fuel requirements EN 590 ASTM D975 No 2 D Never use fuels that have sulfur content greater than 1 0 LUBRICATION SYSTEM Oil quality API CF mini Oil viscosity temperate...

Page 64: ...61 Note...

Page 65: ......

Page 66: ...NANNI INDUSTRIES SAS 11 Avenue Mariotte Zone Industrielle 33260 La Teste France Tel 33 0 5 56 22 30 60 Fax 33 0 5 56 22 30 79 Email contact nannidiesel com www nannidiesel com P N 970316091A 112015...

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