Table 21 Malfunctions During Operation - Charge Air Pressure Too Low - ABB A170-M66 Operation Manual

Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting
Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes
Engine Malfunction in the injection system
Turbocharger Insufficient air, for example, when
filter silencer is blocked by dirt
Compressor/turbine contaminated
Exhaust gas back pressure too high
Turbine damaged or eroded
Charge air cooler Cooler contaminated
Cooling water volume too low
Inlet temperature of cooling water
too high
Insufficient 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
Possible causes
Engine Air receiver not sealed
Gas pipe between engine and tur-
bine not sealed
Injection mistimed
Valve control misadjusted
Turbocharger Manometer display not correct
Supply pipe to manometer not
sealed
Filter silencer contaminated, there-
fore pressure drop too high
Compressor end and/or turbine end
contaminated
Compressor/turbine damaged
Exhaust gas back pressure too high
Pipes Pipes downstream to the compres-
sor outlet not sealed.
Table 21: Malfunctions during operation – Charge air pressure too low
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Remedy
Repair or contact manufacturer
Clean (Periodic maintenance [➙ 37])
Clean or repair boiler or exhaust gas silenc-
er
Contact ABB Turbocharging Service Station
Clean
Fill
Check/clean cooling system
Improve ventilation
Remedy
Repair
Set correctly
Replace manometer
Repair leak
Clean (Periodic maintenance [➙ 37])
Contact ABB Turbocharging Service Station
Clean or repair boiler or exhaust gas silencer
Repair.
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Revision A July 2016