Operation Manual / 4 Product description / A150-M.. - A155-M..
7
Eliminating malfunctions
Page 61 / 120
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HZTL4032_EN
Revision F
January 2017
Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes
Remedy
Engine
Malfunction in the injection system
Repair or contact manufacturer
Turbocharger
Insufficient air, for example, when filter
silencer is blocked by contamination
Clean (see chapter Periodic maintenance
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
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 22: 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
Engine
Air receiver not sealed
Repair
Gas piping between engine and turbine
not sealed
Injection mistimed
Set correctly
Valve control misadjusted
Turbocharger Manometer display not correct
Replace manometer
Supply pipe to manometer not sealed
Repair leak
Filter silencer contaminated, therefore
pressure drop too high
Clean (see chapter Periodic maintenance
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
Pipes
Pipes downstream to the compressor out-
let not sealed.
Repair.
Table 23: Malfunctions during operation – Charge air pressure too low