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Operation Manual / TPL76-C
6 Troubleshooting / 6.3 Malfunctions during operation
6.3 Malfunctions during operation
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Lubricating oil pressure too low
Possible causes
Engine
Oil filter heavily contaminated Clean it
Defective oil pump in lubricat-
ing system
Manometer display wrong
Turbochar-
Rotor axial clearance too large Contact an ABB Turbocharging
ger
Reduction in speed
Possible causes
Engine
Defects of connected cylinders
when pulse charging
Turbochar-
Heavy contamination of the
ger
turbine
Damaged rotor components or
bearing
Pipes
Defects such as leaks in the ex-
haust gas pipes or charge air
ducts
Increase in speed
Possible causes
Turbochar-
Heavily contaminated nozzle
ger
ring (with 4-stroke application)
HZTL2485_EN
Elimination
Check / replace it
Replace the manometer
Service Station
Elimination
Contact the enginebuilder
Clean it
Contact an ABB Turbocharging
Service Station
Make repairs
Elimination
Contact an ABB Turbocharging
Service Station
Rev.G
March 2020
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