Operation0220−1/A1
Winterthur Gas & Diesel Ltd.
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3.1 Conditions
Note: The numbers e.g. 30-4325_E_01 refer to items in 4003−2 Control Diagram.
1) Before you start the SLOW TURNING operation, do the steps that follow:
a) Make sure that the turning gear is disengaged.
b) Make sure that the ECS is set on.
c) Make sure that the oil pumps operate (bearing oil and crosshead oil).
d) Make sure that the related control stand has control.
e) Make sure that the indicator valves are closed.
f) Make sure that the handwheel on the starting air shut-off valve 30-4325_E_01 is
in the position AUTOMAT..
g) Make sure that the shut-off valves on the starting air bottles are open.
h) Make sure that the air pressure for the air spring is correctly set (see 0250−1
Operating Data Sheet)
i) Make sure that the cylinder lubrication is set to on.
Note: If there is a pressure decrease during this procedure, see 8019−1
paragraph 4.4.
3.2 Function
The function below is almost the same as the engine start function:
D The 2/2-way valve 35-4325_E0_5 opens the starting air shut-off valve
30-4325_E_01 and starting air flows to the starting air valves 30-2728_CX_1 in
the cylinder covers.
D The CCM−20 control the 3/2-way solenoid valves upstream of the starting valves.
The starting valves open and close for short intervals only.
D You can use the remote control to change the timing of the starting valves (open /
close) to get the best slow turning speed.
2015-03
Slow Turning
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