•
D.) Cylinder cut out while the piston and crosshead are suspended and the connecting rod
is out
•
E.) Cylinder cut out while the piston, piston rod, crosshead and connecting rod are all totally
out
NOTE:
If the crosshead and crankpin bearings are operative, the oil inlet to the crosshead must
remain free.
NOTE:
For procedures B, D and E, always contact WinGD for a case specific calculation of
allowable ouput and possible barred speed range.
A.) Cylinder cut out while the piston and exhaust valve are still working and the compression is
still on:
1
On the LDU, access the “Fuel Injection Adjust Page”.
2
On the page, turn off the fuel injection for the corresponding cylinder
3
Disconnect the electrical plugs for the fuel injectors of the corresponding cylinder
4
Check if the exhaust valve remains in operation
The cylinder is now cut out and the engine performs under special running conditions.
NOTE:
A malfunctional or out of operation exhaust valve may cause the turbochargers to surge.
B.) Cylinder cut out while the piston and exhaust valve are still working and the compression is off
1
On the LDU, access the “Fuel Injection Adjust Page”.
2
On the page, turn off the fuel injection for the corresponding cylinder
3
Disconnect the electrical plugs for the fuel injectors of the corresponding cylinder
4
Shut off the air supply to the exhaust valve and stop the lube oil pumps
5
Put the exhaust valve out of operation and lock it in open position.
6
Dismantle the block and the actuator oil pipe
7
Restart the lube oil pumps
8
Close the cooling water inlet and outlet valves for the cylinder. If necessary, drain the cooling
water spaces completely
9
Dismantle the starting air pipe and blank off the main pipe and the control air pipe for the
corresponding cylinder
10
After 15 minutes of running, open the crankcase and check:
•
The bearings
•
The temporarily secured parts
•
The oil flow through bearings
•
The tightness of blanked-off openings
11
After 60 minutes of running, open the crankcase and check:
•
The bearings
•
The temporarily secured parts
•
The oil flow through bearings
•
The tightness of blanked-off openings
X72-B
AA00-0000-00AAA-100A-A
Operation Manual
Special running condition: Cylinder cut out
Winterthur Gas & Diesel Ltd.
- 477 -
Issue 003 2021-12
