ABB HT575362, Operation Manual

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Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting / 7.2 Malfunctions during operation
© Copyright 2017 ABB. All rights reserved. HZTL4033_DE Revision B December 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
Turbocharger Axial clearance of the rotor excessive Contact an ABB Turbocharging
Service Station
Engine Oil filter heavily contaminated Clean
Oil pump in lubricating system defective Check/replace
Manometer displays incorrectly
Replace manometer
Table 17: Malfunctions during operation – Lubricating oil pressure too low
Drop in speed
Possible causes Remedy
Turbocharger Heavy contamination of the turbine and/
or nozzle ring
Clean (see chapter Periodic maintenance
→ 33 )
Damaged rotor components or bearing Contact ABB Turbocharging Service Sta-
tion
Engine Defect 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 18: Malfunctions during operation – Drop in speed
Increase in speed
Possible causes Remedy
Turbocharger Light to medium contamination of the
turbine and/or nozzle ring (with 4-stroke
application)
Clean (see chapter Periodic maintenance
→
33 ) or contact an ABB Turbocharging
Service Station
Table 19: Malfunctions during operation – Speed increases
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