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Operation Manual / 4 Product description / A200-L
7 Troubleshooting / 7.2 Malfunctions during operation
Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes
Turbocharger
Insufficient air, for example, when fil-
ter silencer is blocked by dirt
Compressor/turbine contaminated
Exhaust gas back pressure too high
Turbine damaged or eroded
Engine
Malfunction in the injection system
Charge air
Cooler contaminated
cooler
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
Turbocharger Manometer display not correct
Supply pipe to manometer not sealed
Filter silencer contaminated, therefore
pressure drop too high
Compressor end and/or turbine end con-
taminated
Compressor/turbine damaged
Exhaust gas back pressure too high
Engine
Air receiver not sealed
Gas pipe between engine and turbine not
sealed
Injection mistimed
Valve control misadjusted
Pipes
Pipes downstream to the compressor
outlet not sealed.
Table 21: Malfunctions during operation – Charge air pressure too low
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Remedy
Clean
(Periodic maintenance
Clean or repair boiler or exhaust gas si-
lencer
Contact ABB Turbocharging Service Sta-
tion
Repair or contact manufacturer
Clean
Fill
Check/clean cooling system
Improve ventilation
Remedy
Replace manometer
Repair leak
Clean
(Periodic maintenance
Contact ABB Turbocharging Service Sta-
tion
Clean or repair boiler or exhaust gas si-
lencer
Repair
Set correctly
Repair.
HZTL4036_EN
→30)
→30)
Revision N
November 2018
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