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Operation Manual / TPS48-D/E.. - TPS61-D/E..
6 Troubleshooting / 6.3 Malfunctions during operation
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Exhaust gas temperature too high
Engine performance and engine speed unchanged
Possible causes
Engine
Malfunctioning injection
system
Turbocharger Air starvation, for example
filter silencer clogged with
dirt
Compressor / turbine con-
taminated
Exhaust counterpressure
too high
Enlarged flow cross-section
of the nozzle ring due to de-
formed blade trailing edges
Damaged or eroded turbine
Charge air
Cooler contaminated
cooler
Cooling water volume too
low
Entry temperature of cool-
ing water too high
Inadequate ventilation
Charge air pressure too low
Engine performance and engine speed unchanged, air intake condition
normal
Possible causes
Engine
Air receiver leaking
Gas piping between the engine
and the turbine leaking
Poorly adjusted injection sys-
tem
Poorly adjusted valve control
Turbochar-
Manometer display wrong
ger
Line to manometer leaking
Contaminated filter silencer
causing excessive loss of pres-
sure
Compressor / turbine contam-
inated
Damaged compressor / tur-
bine
Exhaust counterpressure too
high
HZTL2410_EN
Elimination
Repair it or contact the manu-
facturer
Clean it
Clean or repair the boiler or ex-
haust silencer
Contact an ABB Turbocharging
Service Station
Clean it
Top up the water
Inspect / clean the cooling sys-
tem
Improve the ventilation
Elimination
Make repairs
Correct it
Replace the manometer
Repair the leak
Clean it
Contact an ABB Turbocharging
Service Station
Clean or repair the boiler or ex-
haust silencer
Rev.F
March 2020
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