Operation Manual / TPL65VA32 / VA33
6 Troubleshooting / 6.4 Malfunctions when stopping
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HZTL2464_EN
Rev.E
March 2020
Charge air pressure too low
Engine performance and engine speed unchanged, air intake condition
normal
Possible causes
Elimination
Engine
Air receiver leaking
Make repairs
Gas piping between the engine
and the turbine leaking
Poorly adjusted injection sys-
tem
Correct it
Poorly adjusted valve control
Turbochar-
ger
Manometer display wrong
Replace the manometer
Line to manometer leaking
Repair the leak
Contaminated filter silencer
causing excessive loss of pres-
sure
Clean it
Compressor / turbine contam-
inated
Damaged compressor / tur-
bine
Contact an ABB Turbocharging
Service Station
Exhaust counterpressure too
high
Clean or repair the boiler or ex-
haust silencer
Charge air pressure too high
Engine performance and engine speed unchanged, air intake condition
normal
Possible causes
Elimination
Engine
Malfunctioning injection sys-
tem
Repair it or contact the manu-
facturer
Poorly adjusted injection sys-
tem
Correct it
Engine performance higher
than expected
Check engine performance
Turbochar-
ger
Manometer display wrong
Replace the manometer
6.4 Malfunctions when stopping
Noises during run-down
Possible causes
Elimination
Turbochar-
ger
Turbocharger contaminated
Clean it
Damaged bearing
Contact an ABB Turbocharging
Service Station
Rubbing rotor
Foreign object in turbocharger
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