ABB HT569038, Operation Manual

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Operation Manual / 4 Product description / A130-H.. - A140-H
7 Eliminating malfunctions / 7.2 Malfunctions during operation
© Copyright 2017 ABB. All rights reserved. HZTL4030_EN Revision D May 2017
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.
u
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.
Wear safety gloves to protect against thermal hazards.
Possible causes Remedy
Turbochar-
ger Axial clearance of the rotor excessive Contact ABB Turbocharging Service
Station
Engine Oil filter heavily contaminated Clean
Oil pump in lubricating system defect-
ive Check/replace
Manometer displays incorrectly Replace manometer
Table 15: Malfunctions during operation – Lubricating oil pressure too low
Speed reduces
Possible causes Remedy
Turbochar-
ger Turbine and/or nozzle ring severely
contaminated Clean (see chapter Periodic mainten-
ance work → 39 )
Rotor components or bearing dam-
aged Contact ABB Turbocharging Service
Station
Engine Defects on the connected cylinders in
pulse charging Contact enginebuilder
Pipes Defects, such as leaks, in the exhaust
gas pipes or charge air ducts Repair
Table 16: Malfunctions during operation – Speed reduces
Speed increases
Possible causes Remedy
Turbochar-
ger Light to medium contamination of the
turbine and/or nozzle ring (with 4-
stroke application) Clean (see chapter Periodic mainten-
ance work → 39 ) or contact an ABB Tur-
bocharging Service Station
Table 17: Malfunctions during operation – Speed increases
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