Nanni H4.115 Скачать руководство пользователя страница 23 | Manualshive

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Nanni H4.115 Скачать руководство пользователя страница 23

Maintenance

Cooling circuit - seawater

Replacing the seawater pump rotor

The seawater pump rotor is an essential component. It
must be replaced regularly along with the seal. A worn rotor
could crack and damage the cooling system. Always have a
replacement rotor on board the craft.

• Close the seawater intake valve.

• Remove the seawater pump cap

A

and the seal

B

, then

remove the rotor

C

without damaging it.

• Check the condition of the rotor: replace it if even the

most minor defect is noted.

• Clean the elements retained.

• Fit a new rotor by turning it clockwise.

• Lubricate the pump casing and the inside of the lid with

waterproof grease for rubber.

• Refi t the water pump cap using a new seal.

• Open the seawater intake valve and then start the en-

gine to check that the circuit is leak-tight.

23

B

A

C

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Содержание H4.115

Страница 1: ...Instruction manual Marine Diesel engines H4 115 H4 130 H4 150 H4 170 970315364 01032011 F...

Страница 2: ...system 16 Bleeding the fuel circuit 16 Replacing the fuel filter 16 Replacing the fuel prefilter 17 Draining the water from the fuel prefilter 17 Lubrication circuit 18 Checking the oil level 18 Repl...

Страница 3: ...your equipment This manual contains important safety indications and information They are as follows I Danger This symbol indicates the risk of accidents and serious personal injury substantial prope...

Страница 4: ...e coolant and oil circuit caps when the engine is operational and or hot Never start or run the engine when the oil fill cap is not screwed on as hot oil could spray out If you come into contact with...

Страница 5: ...onal I Rotating parts Rotating parts can be extremely dangerous and cause serious injury and even death Do not work on the engine when it is operational If work on the engine when running is absolutel...

Страница 6: ...ormation on personal safety This manual must always be to hand where the engine is used We recommend that you visually check the overall condition of your engine before and after using it each time so...

Страница 7: ...to the water The different fluids 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 com...

Страница 8: ...show the engine oil level This indicator shows the oil pressure The pilot lamp inside the dial is lit and an audible alarm sounds if the oil pressure in the lubrication circuit falls At idle the pres...

Страница 9: ...h pressure turbo This alert indicator indicates that the air pressure in the turbocharger is too high If one or more of these lights come on when the engine is running stop the engine except in emerge...

Страница 10: ...Oil drain orifice 11 Oil gauge 12 Oil filter 13 Heat exchanger 14 Coolant fill orifice 15 Seawater pump 16 Heat exchanger drain plug 17 Electronic control unit 18 Supports 19 Turbocompressor 20 Hoisti...

Страница 11: ...utlet 5 Anti siphon valve Mandatory on boats whose engine is below the waterline The anti siphon valve must be installed at the end of the seawater system before injection in the exhaust elbow and mus...

Страница 12: ...for several minutes If the engine is not used regularly turn the ignition and let the engine run at idle until it reaches operating tempera ture Do this at least one time per month when not in use Car...

Страница 13: ...rting the engine without giving the engine the time to warm up by idling for several minutes and only run at full speed for short periods of time Stopping the engine Let the engine run at idle in the...

Страница 14: ...preserve the mechanical qualities of the engine and prolong its service life we recommend you follow the instructions below Use a coolant made of 50 water and 50 antifreeze Use tap water for the mix...

Страница 15: ...is required I Attention Do not let oil fuel or grease deposits build up around the engine as they may increase the risk of fire in the engine compartment Check the operation of the different lamps an...

Страница 16: ...screw and lock the hand pump B I Attention Avoid draining all the fuel in the filter when bleeding If you have remove the filter and replenish with fuel before replacing it and repeat the bleeding Rep...

Страница 17: ...uel prefilter Remove the filter tank A Drain and clean the filter tank Replace the cartridge B and re install the tank Open the fuel valve Drain the feed system then start the engine to check the leak...

Страница 18: ...more oil until reaching the specified level Fill the oil via the fill orifice situated on the top of the engine Add the oil slowly and wait several minutes before checking the level again This allows...

Страница 19: ...fice A Connect the drain pump to the orifice A Use a pail to collect the extracted oil Pump until the oil has been completely extracted Refill with the new oil the amount of oil to add is indicated in...

Страница 20: ...receptacle and ensure the fluids are well mixed Coolant filling I Attention Do not check the coolant level when the engine is hot Pressurised coolant can spurt and cause serious burns Carry out this...

Страница 21: ...ace a pail under the drain cap A and untighten it Let the coolant run out until the exchanger is empty Clean the inside of the heat exchanger by following the instructions below before closing the cap...

Страница 22: ...seawater filter The seawater filter is an optional component These instructions are given as an example only Check the condition of the seawater filter with the engine stopped If deposits have formed...

Страница 23: ...ter intake valve Remove the seawater pump cap A and the seal B then remove the rotor C without damaging it Check the condition of the rotor replace it if even the most minor defect is noted Clean the...

Страница 24: ...level of noise made by the engine and purifies the air injected into the combustion chamber If the filter is too clogged replace it If it is not Remove the hose retaining ring and remove the filter Fi...

Страница 25: ...remature discharging notably in wet weather The battery terminals and the cables must be cleaned with a brass brush in order to remove any oxidation Tighten the cable terminals and lubricate them with...

Страница 26: ...In order to protect the engine and the seawater cooling system from corrosion the engine is fitted with two sacrificial anodes located on the end cover of the exchanger To remove the anode Let the en...

Страница 27: ...the engine cool down to avoid the risk of burns 13 Block all the openings admission exhaust fuel line air valve 14 Loosen belts 15 Remove and store the impeller of the sea water pump in a hermetic op...

Страница 28: ...ters clogged or water present Clean or replace the fuel filters or drain the water from the prefilter then drain the circuit Fuel contaminated or too old Drain the tank if contaminated and fill with c...

Страница 29: ...or faulty Re tighten or replace the belt Coolant pump is faulty Replace the pumpe and the belt Seawater pump rotor is faulty Replace the rotor Insufficient coolant Fill with coolant and check that the...

Страница 30: ...000 50 tr min Idle rpm speed rpm 700 50 tr min 700 50 tr min No load rpm speed rpm 3120 50 tr min 4120 50 tr min Theoric fuel consumption l h 21 8 3000 tr min 29 5 4000 tr min 34 1 4000 tr min 37 4 40...

Страница 31: ...31...

Страница 32: ...6 22 30 60 Fax 33 0 5 56 22 30 79 E mail contact nannidiesel com 2009 Nanni Industries S A S The images text and information contained in this document are based on the product specifications at the t...

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