Operation Manual / 4 Product description / A100-M axial
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Exhaust gas temperature too high
Engine performance and engine speed unchanged
Engine Malfunction in the injection system Repair or contact manufacturer
Turbocharger Insufficient air, for example, when
filter silencer is blocked by dirt
Clean (Periodic maintenance [➙ 37])
Compressor/turbine contaminated
Exhaust gas back pressure too high Clean or repair boiler or exhaust gas silenc-
er
Turbine damaged or eroded Contact ABB Turbocharging Service Station
Charge air cooler Cooler contaminated Clean
Cooling water volume too low Fill
Inlet temperature of cooling water
too high
Check/clean cooling system
Insufficient ventilation Improve ventilation
Table 20: Malfunctions during operation – Exhaust gas temperature too high
Charge air pressure too low
Engine performance and engine speed unchanged, suction condition normal
Gas pipe between engine and tur-
bine not sealed
Valve control misadjusted
Manometer display not correct
Supply pipe to manometer not
sealed
Repair leak
Filter silencer contaminated, there-
fore pressure drop too high
Clean (Periodic maintenance [➙ 37])
Compressor end and/or turbine end
contaminated
Compressor/turbine damaged
Contact ABB Turbocharging Service Station
Exhaust gas back pressure too high Clean or repair boiler or exhaust gas silencer
Pipes downstream to the compres-
sor outlet not sealed.
Table 21: Malfunctions during operation – Charge air pressure too low
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