ABB A170-M Series - Table 21: Malfunctions During Operation - Exhaust Gas Temperature too High; Table 22: Malfunctions During Operation - Charge Air Pressure too Low

Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting / 7.2 Malfunctions during operation
© Copyright 2019 ABB. All rights reserved. HZTL4033_DE Revision C February 2019
Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes Remedy
Turbocharger Insufficient air, for example, when fil-
ter silencer is blocked by dirt
Clean (Periodic maintenance →33)
Compressor/turbine contaminated
Exhaust gas back pressure too high Clean or repair boiler or exhaust gas si-
lencer
Turbine damaged or eroded Contact ABB Turbocharging Service Sta-
tion
Engine Malfunction in the injection system Repair or contact manufacturer
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21: Malfunctions during operation – Exhaust gas temperature too high
Charge air pressure too low
Engine performance and engine speed unchanged, suction condition normal
Possible causes Remedy
Turbocharger Manometer display not correct Replace manometer
Supply pipe to manometer not sealed Repair leak
Filter silencer contaminated, therefore
pressure drop too high
Clean (Periodic maintenance →33)
Compressor end and/or turbine end con-
taminated
Compressor/turbine damaged Contact ABB Turbocharging Service Sta-
tion
Exhaust gas back pressure too high Clean or repair boiler or exhaust gas si-
lencer
Engine Air receiver not sealed Repair
Gas pipe between engine and turbine not
sealed
Injection mistimed Set correctly
Valve control misadjusted
Pipes Pipes downstream to the compressor
outlet not sealed.
Repair.
Table22: Malfunctions during operation – Charge air pressure too low
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