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Operation Manual / A130-H.. - A140-H..
8 Eliminating malfunctions / 8.2 Malfunctions during operation
© Copyright 2021 ABB. All rights reserved.
HZTL4030_EN
Rev.G
July 2021
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 contamina-
tion
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
Station
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
Turbochar-
ger
Manometer display not correct
Replace manometer
Supply pipe to manometer not sealed
Repair leak
Filter silencer contaminated, therefore
pressure drop too high
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 si-
lencer
Engine
Air receiver not sealed
Repair
Gas piping between engine and turbine
leaking
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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Summary of Contents for HT608827
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