Operation Manual / Power2 800-M / 4 Product description
7
Troubleshooting
Page 41 / 59
© Copyright 2016 ABB. All rights reserved.
HZTL4061_EN
Revision A
September 2016
Increase in low-pressure stage speed
Possible causes
Remedy
Low-pressure
stage
Heavy contamination of the nozzle
ring
Contact ABB Turbocharging Service Sta-
tion
Table 22: Malfunctions during operation – Power2 LP speed increases
Increase in high-pressure stage speed
Possible causes
Remedy
High-pressure
stage
Heavy contamination of the nozzle ring Contact ABB Turbocharging Service Sta-
tion
Low-pressure stage defective
Contact ABB Turbocharging Service Sta-
tion
Pipes
Leak in exhaust gas pipe before the
low-pressure stage
Repair
Table 23: Malfunctions during operation – Power2 HP speed increases
Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes
Remedy
Engine
Malfunction in the injection system
Repair or contact manufacturer
Low-pressure or
high-pressure
stage
Insufficient air, for example, because
filter silencer is blocked by contamina-
tion
Clean
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 cool-
er/intercooler
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 24: Malfunctions during operation – Exhaust gas temperature too high
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