Operation
0320−1/A1
Winterthur Gas & Diesel Ltd.
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Procedures after Engine Stop
1. Procedures for Short Service Breaks (some days to
some weeks)
1.1 Engine is Maneuverable
If the engine must still be maneuvered after it has stopped, see the conditions that
follow:
D The engine control system (ECS) must stay set to on.
D All the pumps for coolant water, lubricating oil and fuel must operate.
D Control air must be available and the starting air bottles must be full.
D The cylinder cooling water must be kept at the correct temperature.
D The temperature of the lubricating oil must not decrease.
D The fuel must be kept at the applicable temperature in accordance with 0710−1,
Fig. 1 Viscosity-Temperature Diagram.
1.2 Engine is Not Maneuverable
If the engine is not maneuverable, see the conditions that follow:
D After the engine has stopped, the coolant water and lubricating oil pumps must
operate for a minimum of 20 minutes to let the temperatures become stable. The
temperatures of these media must not decrease below their usual inlet
temperatures. Thus, the sea-water pump can usually be stopped immediately.
D If the engine was shut down during operation with HFO, then the supply must
flow through the fuel pumps and the fuel rail. The fuel system must continue to
operate.
D The fuel pipe heating system of the engine must be set to on. If this is not
necessary, change the engine operation to diesel oil before shut-down (see
0270−1 Change-over from heavy fuel oil to diesel oil and 0620−1 Procedures
before Putting Out of Service for a Long Period).
D The low pressure supply pump and booster pump can be stopped if the engine
was shut down during operation with diesel oil (see 0720−1, paragraph 4
Configuration of the Fuel System).
D After the engine has stopped, the starting air supply must be closed.
1) Close the shut-off valves on the starting air bottles.
2) Turn the handwheel of the starting air shut-off valve 30-4325_E0_1 to the
position CLOSED.
3) Open the ball valves 30-8605_E0_6 and 30-8605_E0_7 to release the pressure
(see 4003−2 Control Diagram and 4003−9 Air Systems).
4) Open the indicator valves in the cylinder covers.
5) Engage the the turning gear.
Note: Make sure that you know the safety precautions before you do repair
work or overhauls (see the Maintenance Manual 0011−1 and 0012−1).
6) If necessary, release the pressure from the fuel system.
2014
Engine Shutdown
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