ABB VTC254-14 HT842641 Bedienungsanleitung Seite 96

Trouble Location
Engine
Turbo-
charger
Exhaust gas
temperature too
high, engine
performance and
speed unaltered
Charge-air
cooler
Engine
Turbo-
charger
Turbine power too
low, engine
performance and
speed unaltered;
air intake normal
Cause
- faults in injection system
- 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
- dirt in the cooler
- insufficient cooling water
- cooling water inlet temperatur
too high
- insufficient ventilation
- leak in the air receiver
- leak in the gas duct between engine
and turbine
- injection incorrectly adjusted
- 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
Remedy
- repair or consult engine
manufacturer
- clean
- clean
- clean or repair boiler
- replace the rotor
- replace
- clean
- top up
- check / clean cooling system
- improve ventilation
- repair
- repair
- adjust correctly
- replace manometer
- repair leak
- clean
- clean
- consult service station for
replacement
- replace the rotor
- replace
- replace
- clean boiler or exhaust gas
silencer
see
chap. 3
chap. 3
chap. 5
chap. 5
chap. 3
chap. 3
chap. 8
chap. 5
chap. 5
chap. 5