Case A : Combustion to be stopped
Reasons : Blow-by at piston rings or exhaust valve action. Reduction of load on bearings. Faulty injection equipment.
Component Status :
- Fuel pump with roller guide : Lifted
- Exhaust valve : Working
- Air for air spring : open
- Exhaust valve actuator with roller guide : Working
- Oil inlet for actuator : open
- Starting valve : Working
- Piston with rod : Moving
- Crosshead : Moving
- Connecting rod : Moving
- Crankpin bearing : Moving
- Oil inlet to crosshead : Open
- Cooling oil outlet from crosshead : Open
- Cylinder lubricator : Working
Case B : Compression and Combustion to be stopped
Reasons : Leaking cylinder cover or liner
Component Status :
- Fuel pump with roller guide : Lifted
- Exhaust valve : Held open
- Air for air spring : Closed
- Exhaust valve actuator with roller guide : Out or lifted
- Oil inlet for actuator : Pipe dismantled and blocked
- Starting valve : Blanked
- Piston with rod : Moving
- Crosshead : Moving
- Connecting rod : Moving
- Crankpin bearing : Moving
- Oil inlet to crosshead : Open
- Cooling oil outlet from crosshead : Open
- Cylinder lubricator : Working
Case C : Combustion to be stopped(Due to faulty exhaust Valve)
Reasons : Exhaust valve, or exhaust valve actuating gear malfunction.
Component Status :
- Fuel pump with roller guide : Lifted
- Exhaust valve : Closed
- Air for air spring : Open
- Exhaust valve actuator with roller guide : Out or lifted
- Oil inlet for actuator : Open
- Starting valve : Working
- Piston with rod : Moving
- Crosshead : Moving
- Connecting rod : Moving
- Crankpin bearing : Moving
- Oil inlet to crosshead : Open
- Cooling oil outlet from crosshead : Open
- Cylinder lubricator : Working
Case D : All reciprocating parts suspended or out
Reasons : Quickest and safest measure in the event of faults in large moving parts, or cylinder cover or cylinder liner.
Component Status :
- Fuel pump with roller guide : Lifted
- Exhaust valve : Closed
- Air for air spring : Open
- Exhaust valve actuator with roller guide : Out or lifted
- Oil inlet for actuator : Open
- Starting valve : Blanked
- Piston with rod : Suspended
- Crosshead : Suspended
- Connecting rod : Out
- Crankpin bearing : Out
- Oil inlet to crosshead : Blanked
- Cooling oil outlet from crosshead : NA
- Cylinder lubricator : Zero Delivery
Case E : All reciprocating parts out
Reasons : Only of interest if spare parts are not available
Component Status :
- Fuel pump with roller guide : Lifted
- Exhaust valve : Closed
- Air for air spring : Open
- Exhaust valve actuator with roller guide : Out or lifted
- Oil inlet for actuator : Open
- Starting valve : Blanked
- Piston with rod : Out
- Crosshead : Out
- Connecting rod : Out
- Crankpin bearing : Out
- Oil inlet to crosshead : Blanked
- Cooling oil outlet from crosshead : NA
- Cylinder lubricator : Zero Delivery
SCAVENGE AIR DRAIN PIPES
CUTTING TURBOCHARGERS OUT OF ACTION
TURBOCHARGER SURGING
SCAVENGE AIR SPACES, FIRE EXTINGUISHING SYSTEMS
