Iveco N67 MNA M15

INSTALLATION DIRECTIVE
12
MAY 2006
N45 MNA M10
N67 MNA M15
5. GENERAL INSTALLATION CRITERIA
Accessibility
The engine must be located in such a way as to allow filling
and draining engine liquids when doing servicing operations.
Access to relay box shall be allowed even during navigation,
Anchoring
If anchoring is accomplished by interposing shock mounts,
they must be able to support the engine’s mass and the
longitudinal thrust exerted by the propeller shaft in motion.
If rigid mounting is adopted, particular care must be given to
support alignment and co-planarity.
Information on dimensions and fastening values are provided
in the “Installation Diagram”.
Combustion and ventilation air
Compliance with prescriptions on the quantity of air
required for combustion and ventilation assures a regular
operation of the engine even in adverse conditions and it
enables to deliver its maximum design power.
Sea water line
It must be provided with an intake capable of preventing
the entry of foreign bodies into the suction pipes. Between
the intake and the pump, it is best to interpose a gate to be
closed in emergencies or for extended idle periods and a
filter to stop the smaller impurities; it is also recommended
to install a suitably dimensioned and easily replaced zinc
anode.
The engine sea water line was provided by the manufacturer
with protection anodes to be replaced periodically.
The rubber hoses positioned along the pipeline shall be suffi-
ciently rigid not to create choked areas caused by crushing.
Engine pre-heating
If the engine usage profile requires immediate delivery of
power at the highest rpm’s, it is recommended to install an
auxiliary pre-heater on the closed cooling loop.
Exhaust gas discharge
The exhaust gas discharge conduit shall be compliant with
the guidelines contained in the IVECO MOTORS publication
“Guide to the installation of marine engines”; it also provides
indications to compute the dimensions of the exhaust pipe-
lines, which is the Yard’s responsibility.
Electric - electronic equipment
Provide a proper positioning of the relay box and of any
optional electronic unit. Refer to size and position of wiring
and relevant connectors.
Secure units in order to dampen vibrations and stress the
hull is subject during navigation and/or created by the rotat-
ing engine.