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Trouble
Location
Engine
Exhaust gas
Power
temperature too
turbine
high, engine
performance and
speed unaltered
Engine
Turbine power too
Power
low, engine
tubine
performance and
speed unaltered;
air intake normal
Cause
- faults in injection system
- turbine contaminated
- Exhaust gas back pressure too high
- turbine blade damaged or eroded
- cover ring eroded
- leak in the air receiver
- leak in the gas duct between engine
and turbine
- injection incorrectly adjusted
- dirt in the turbine
- labyrinth seal damaged
- turbine blades damaged
- nozzle ring damaged
- cover ring eroded
- exhaust gas back pressure too high
Remedy
- repair or consult engine
manufacturer
- clean
- clean or repair boiler
- replace the turbine
- replace
- repair
- repair
- adjust correctly
- clean
- consult service station for
replacement
- replace the turbine
- replace
- replace
- clean boiler or exhaust gas
silencer
see
chap. 3
chap. 5
chap. 5
chap. 3
chap. 8
chap. 5
chap. 5
chap. 5
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