Owner`s manual

Antares 44i Owner’s Manual Revised March 26, 2012
Page 17 of 35
PROPULSION ENGINES AND GENERATOR 3
Engines 3-1
Auxiliary power is provided by two diesel engines, located amidships under the floors, with
direct shaft drive to folding propellers. Please read the manufacturer’s manuals before
running the engines and prior to carrying out any maintenance.
The diesel engines have a closed circuit cooling system. Sea water cools the internal tubes
of a heat exchanger, inside which is the liquid that actually cools the engine. Sea water
never comes in direct contact with the engine. For the system to work properly, sea water
must flow to the heat exchanger, and engine coolant must circulate through the engine.
• While running, make sure that the exhaust flow includes a continuous flow of sea
water. Monitor the engine temperature gauges, shut down an overheating engine
immediately;
• Check the coolant level periodically and replace it annually with a product
recommended by the engine manufacturer. Also, check the cooling water seacocks.
They should operate freely and be free of fouling.
• Check oil levels in the gear cases and the engine sump.
Make sure that the engine oil level dip-stick is inserted correctly, as described in the engine
manual, to ensure an accurate reading.
NOTE: Incorrect operation or failure to perform required maintenance might
jeopardize the manufacturer’s warranty.
CAUTION: The switches that shut off the buzzers warning of overheating or low oil
pressure should be kept in the ‘set’ position. Whether you do the work yourself, or
have it done (by a qualified mechanic), follow the maintenance recommendations in
the manual. Pay particular attention to break-in requirements, especially the service
required by new engines.
WARNING: Avoid contact with moving machinery.
Vibrations in the propulsion system may indicate problems of engine and shaft alignment,
bent propeller shaft, damaged propeller, or fouling, and should be investigated at the first
opportunity. If heavy vibration is experienced, minimize use of engine until rectified to avoid
equipment damage.
Please refer to Mechanical Propulsion Diagnostic Chart (ME-04-16) for further information
on troubleshooting. Refer to Shaft Line Components (ME-04-10) for description of
components.