Operation0320−1/A1
Winterthur Gas & Diesel Ltd.
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Do the steps that follow:
1) Open the indicator valves in the cylinder covers.
2) Engage the turning gear.
3) Set the WECS−9520 to on.
4) At frequent intervals and with the indicator valves open, use the turning gear to
turn the engine as necessary (possibly done daily in damp climates). Do this
procedure while the lubricating oil pump and servo oil service pump operate and
set to on the cylinder lubrication at the same time. After this procedure is
completed, make sure that the piston stops in a different position each time.
5) Close the shut-off valve on the control air supply (supply of air from the board
system).
Note: Make sure that the lubricating oil pump is set to off before you bleed the
air spring system.
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). If
necessary, release the pressure from the fuel oil system.
6) Repair all the defects found in service (leaks, etc).
1.2.1 Starting Air Manifold Venting / Stop the Starting Air System
Because of low air pressure after engine stop, the venting of the starting air
manifold (6, Fig. 1) cannot be done correctly. Thus, dirt and grease stay in the starting
air manifold and can cause the piston rings of the starting air valve (7) to stick.
Use high-pressure air at regular periods, to make sure that all dirt and grease is
removed from the starting air manifold.
Do the steps that follow:
1) Engage the turning gear.
2) Open the drain and test valve (3) momentarily. If you can hear the starting air
flow into the shut-off valve (1), close the drain and test valve (3). The starting air
manifold (6) is pressurized with high-pressure starting air.
3) Close the shut-off valves of the starting air bottles.
Note: You can usually find the venting valve (5) installed at the free end of the
starting air manifold. But on some engines the venting valve is installed
at the driving end. It is possible that two venting valves are installed on
different engine types.
4) Open the venting valve (5). The high-pressure air is released. Dirt and grease in
the starting air manifold are removed.
5) Lift the lever then turn the handwheel (2) to position CLOSED.
6) Open the venting valve (4) to drain the shut-off valve (1).
2014
Procedures after Engine Stop
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