Operation Manual / Power2 340-H / Low-pressure stage
8 Troubleshooting / 8.2 Malfunctions during operation
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HZTL4053_EN
Rev.F
March 2022
Contamination of the compressor
Reduced compressor performance/efficiency and therefore engine performance losses
Possible causes
Remedy
Low-pressure
or
high-pressure
stage
Heavy contamination of the com-
pressor components due to the in-
flux of ventilation gases
Clean the compressor
Optimize oil separation
Increased vibration, compressor
blade damage due to the influx of
ventilation gases
Correct the influx of ventilation gases in
accordance with the enginebuilder's in-
structions.
Table 30: Malfunctions during operation – Compressor 1 contamination
Reduced fatigue strength of the compressor wheel, compressor blade breakage.
Possible causes
Remedy
Low-pressure
or
high-pressure
stage
Material of the compressor wheel
corroded due to the influx of ventila-
tion gases containing corrosive com-
ponents
Correct the influx of ventilation gases in
accordance with the enginebuilder's in-
structions.
Material of the compressor wheel
corroded due to intake air containing
exhaust gases or salt
Prevent exhaust gas leakages in the en-
gine space
Clean the compressor
Table 31: Malfunctions during operation – Compressor 2 contamination
Blow-by too high
Possible causes
Remedy
Low-pressure
or
high-pressure
stage
Damage to the sealing system (dam-
aged piston ring at compressor or
turbine end) at the low or high-pres-
sure stage
A measurement system is available for
the pressure in the bearing casing to
identify the triggering stage.
Contact a Turbo Systems service sta-
tion
Table 32: Malfunctions during operation – Blow-by too high
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Summary of Contents for PT003924
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