Operation and surveillance learning objectives the main objectives of this
section are to make the operators able to describe components and systems which
should be operating during startup describe components and systems which
should be in standby mode during startup recognize the components to operate
during startup describe what actually happens within the system during startup
describe the critical parameters and know where to find the measuring
instruments rectifying actions in case of deviation
before starting the engine after a period of standstill shorter than 24
hours the following routine should be performed to ensure a safe startup of
the engine if the fuel system has been disconnected it will be necessary to
expel trapped air in the system disconnect the high-pressure pipe
between some of the fuel injection pumps and fuel injection valves wait until all
the oil comes out of the pipe before reconnecting check the cooling water
system check jacket cooling water start on marine diesel oil check that the
jacket cooling water temperature is above 50 degrees Celsius for a warm
standby starting this makes the engine ready for instant loading to a hundred
percent between zero degrees and 50 degrees Celsius the engine can be cold
started on marine diesel oil the engine has to be loaded gradually and in a
minimum jacket water temperature of 50 degrees Celsius is reached if the jacket
water temperature is below zero degree Celsius the only starting attempts
should be emergency starts requirement for start on heavy fuel oil check that
the jacket water cooling water temperature is at least 50 degrees
Celsius if it's not run the heater until it reaches that temperature for start
and heavy fuel oil check fuel oil and nozzle oil temperatures in addition to
the jacket cooling water temperature the following temperature demands have to be
met to start on heavy fuel oil the temperature of the heavy fuel oil has to
be as required for the fuel oil injection viscosity the nozzle oil
temperature has to be 85 plus -5 degrees Celsius check control air pressure
ensure that the control air pressure is between 5 and 7 bar
check the lubricating oil systems check for cooling water leakage clean rocker
arm lubricating oil filter check the starting air pressure check start
interlocks when starting the engine after a period of standstill longer than
24 hours the following routine should be performed to ensure a safe startup of
the engine if the fuel system has been disconnected it would be necessary to
expel trapped air in the system disconnect the high-pressure pipe
between some of the fuel injection pumps and fuel injection valves wait until all
the oil comes out of the pipe before reconnecting check the cooling water
system open the lower temperature and the high temperature cooling water
valves check the high temperature cooling water level in the expansion
tank if the engine has been drained the high temperature system must be vented
start a marine diesel oil check that the jacket cooling water temperature is
above 50 degrees Celsius for a warm standby starting this makes the engine
ready for instant loading to a hundred percent between zero degrees and 50
degrees Celsius the engine can be cold started on marine diesel oil the engine
has to be loaded gradually and in a minimum jacket water temperature of 50
degrees Celsius is reached if the jacket water temperature is below zero degrees
Celsius the only starting attempts should be emergency starts requirement
for start on heavy fuel oil check that the jacket cooling water temperature is
at least 50 degrees Celsius if it's not run the heater until it reaches that
temperature for start and heavy fuel oil check fuel
oil and nozzle oil temperatures in addition to the jacket cooling water
temperature the following temperature demands have to be met to start on heavy
fuel oil the temperature of the heavy fuel oil has to be as required for the
fuel oil injection viscosity the nozzle oil temperature has to be 85 plus -5
degrees Celsius check the control air system check the control air module
ensure that the control air pressure is between 5 and 7 bar open the control air
quickly to avoid that the solenoid valves are placed in the center position
drain the control air module check the lubricating oil systems check for
cooling water leakage clean rocker arm lubricating oil filter check control
shaft check the starting air pressure check start interlocks start the engine
check all manometers check the start air piping before manual control stop run
engine for 5 minutes on no load to avoid boiling of cooling water you are
performing a daily check of the engine then you discover that exhaust
temperature one of the cylinders is too high compared to the others even though
it is not triggered an alarm it is important to find out why the exhaust
temperatures too high what would you do specify the procedure by dragging the
actions so they are listed in a suitable order on the sheet at EDD specify the
procedure by dragging the actions so they are listed in a suitable order on
the sheet at any time you can get more detailed information on any of the
actions by double clicking on it you are performing a daily check of the
engine then you discover that the exhaust temperature for one of the
cylinders is too low compared to the others even though it is not triggered
an alarm it is important to find out why the exhaust temperatures too low what
would you do