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Operation Manual / 4 Product description / A130-H.. - A140-H
7 Eliminating malfunctions / 7.2 Malfunctions during operation
7.2
Malfunctions during operation
Lubricating oil pressure too low
WARNING
Danger of fire and explosion due to lubricating oil leaks
Leaking oil may ignite on hot surfaces. This can result in serious injuries to
personnel or fatal accidents.
Cordon off danger area.
u
Raise the alarm and, depending on the situation, stop the engine.
u
Seal the oil leak.
u
Soak up oil and dispose of in an environmentally compatible manner.
u
Wear safety gloves to protect against thermal hazards.
Possible causes
Turbocharger Axial clearance of the rotor excessive
Engine
Oil filter heavily contaminated
Oil pump in lubricating system defective Check/replace
Manometer displays incorrectly
Table 16: Malfunctions during operation – Lubricating oil pressure too low
Speed reduces
Possible causes
Turbocharger Turbine and/or nozzle ring severely con-
taminated
Rotor components or bearing damaged Contact ABB Turbocharging Service Sta-
Engine
Defects on the connected cylinders in
pulse charging
Pipes
Defects, such as leaks, in the exhaust gas
pipes or charge air ducts
Table 17: Malfunctions during operation – Speed reduces
Speed increases
Possible causes
Turbocharger Light to medium contamination of the
turbine and/or nozzle ring (with 4-stroke
application)
Table 18: Malfunctions during operation – Speed increases
© Copyright 2018 ABB. All rights reserved.
Remedy
Contact an ABB Turbocharging
Service Station
Clean
Replace manometer
Remedy
Clean (see chapter
work
→40)
tion
Contact enginebuilder
Repair
Remedy
Clean (see chapter
work
→40) or contact an ABB Turbochar-
ging Service Station
HZTL4030_EN
Periodic maintenance
Periodic maintenance
Revision E
September 2018
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