WÄRTSILÄ Vasa R22, Instruction Manual

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Identified hazard,hazardous situation or
event
Chapter of engine manual
3 4 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Explosion or fire if flammable gas/vapour is leak-
ing into the insulation box.
4)
x x
Touching of moving parts x x x x x x x x x x x x x x x
1)
Warning light when turning device engaged.
2)
Suction air to be taken from gas free space.
3)
Require proper ventilation of engine room/plant.
4)
Require proper ventilation and/or gas detector in the engine.
00A.1.1 General identified hazards, hazardous situ-
ations or events
00A.1.1.1
Hazards that may be due to moving parts
••••
Running engine without covers, coming in contact with moving
parts,
••••
Touching pump parts during unintentional start of el. driven
pump motor,
••••
Charger starts to rotate due to draft if not locked during mainte-
nance,
•••• Somebody sticks his hand into the compressor housing when the
silencer is removed and engine running,
•••• Unexpected movement of valve or fuel rack(s) due to broken wire
or soft / hardware failure in the control system,
•••• Unexpected movement of components,
••••
Turning device engaged during maintenance work,
••••
Turning device not engaged e.g. Turning device removed for
overhaul, during maintenance work could cause rotating crank-
shaft,
••••
Mechanical breakage (of e.g. speed sensor) due to erratic actuator
assembly to engine or electrical connections.
00A.1.1.2
Hazards that may be due to incorrect operating con-
ditions
•••• Overspeed or explosion due to air-gas mixture in the charge air,
••••
Overspeeding due to air-oil mist mixture in the charge air,
••••
Malfunction of crankcase ventilation,
•••• Oil mist detector will trip if water is present in lubricating oil,
••••
Crankcase explosion if oil mist is mixed with “fresh” air during
inspection after an oil mist shut down,
••••
Crankcase safety explosion valves will open if there is a crankcase
explosion.
Appendix A Risk Reduction 200145
00A - 2