ABB HT842648, Operation Manual

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ABB Turbocharger VTC..4 Seite / Page 5
Beheben von Störungen Kap. / Chap. 4Troubleshooting
ABB Turbo Systems Ltd
10103
- A -
1
Troubles
causes, remedies
Trouble Location Cause Remedy see
Exhaust gas
temperature too
high, engine
performance and
speed unaltered
Engine
- faults in injection system - repair or consult engine
manufacturer
Turbo-
charger - lack of air, e.g. filter blocked
by dirt
- compressor / turbine contaminated
- Exhaust gas back pressure too high
- turbine blade damaged
or eroded
- cover ring eroded
- clean
- clean
- clean or repair boiler
- replace the rotor
- replace
chap. 3
chap. 3
chap. 5
chap. 5
Charge-air
cooler - dirt in the cooler
- insufficient cooling water
- cooling water inlet temperatur
too high
- insufficient ventilation
- clean
- top up
- check / clean cooling system
- improve ventilation
Turbine power too
low, engine
performance and
speed unaltered;
air intake normal
Engine - leak in the air receiver
- leak in the gas duct between engine
and turbine
- injection incorrectly adjusted
- repair
- repair
- adjust correctly
Turbo-
charger - manometer indication defective
- leaks in the line to the manometer
- dirt in the air filter causing,
exessive pressure los
- dirt in the compressor / turbine
- labyrinth seal damaged
- turbine / compressor blades damaged
- nozzle ring damaged
- cover ring eroded
- exhaust gas back pressure too high
- replace manometer
- repair leak
- clean
- clean
- consult service station for
replacement
- replace the rotor
- replace
- replace
- clean boiler or exhaust gas
silencer
chap. 3
chap. 3
chap. 8
chap. 5
chap. 5
chap. 5