Malfunctions During Operation; Table 17 Malfunctions During Operation - Lubricating Oil Pressure Too Low; Table 18 Malfunctions During Operation - Speed Reductions; Table 19 Malfunctions During Operation - Speed Increases - ABB A175-M66 Operation Manual

Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting
7.2

Malfunctions during operation

Lubricating oil pressure too low
Danger of fire and explosion due to lubricating oil leaks
Leaking oil may ignite on hot surfaces. This can cause severe personal inju-
ry or fatal accidents can result.
WARNING
Cordon off danger area.

Sound an alarm and depending on the situation, stop the engine.

Seal oil leaks.

Soak up oil and dispose of in an environmentally compatible manner.

Wear safety gloves to protect against thermal hazards.
Possible causes
Engine Oil filter heavily contaminated
Oil pump in lubricating system defective
Manometer displays incorrectly
Turbocharger Axial clearance of the rotor excessive
Table 17: Malfunctions during operation – Lubricating oil pressure too low
Drop in speed
Possible causes
Engine Defects on the connected cylinders in
pulse charging
Turbocharger Heavy contamination of the turbine
and/or nozzle ring
Damaged rotor components or bearing
Pipes Defects, such as leaks, in the exhaust
gas pipes or charge air ducts
Table 18: Malfunctions during operation – Speed reductions
Increase in speed
Possible causes
Turbocharger Light to medium contamination of the
turbine and/or nozzle ring (with 4-stroke
application)
Table 19: Malfunctions during operation – Speed increases
© Copyright 2016 ABB. All rights reserved.
Remedy
Clean
Check/replace
Replace manometer
Contact ABB Turbocharging Service Station
Remedy
Contact enginebuilder
Clean (see chapter Periodic maintenance
[➙ 37])
Contact ABB Turbocharging Service Station
Repair
Remedy
Clean (see chapter Periodic maintenance
[➙ 37]) or contact an ABB Turbocharging
Service Station
HZTL4033_EN
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Revision A July 2016