ABB Power2 340-H44 - Malfunctions During Operation; Table 22: Malfunctions During Operation - Lubricating Oil Pressure too Low; Table 23: Malfunctions During Operation - Power2 LP Speed Reductions; Table 24: Malfunctions During Operation - Power2 HP Speed Reductions

Operation Manual / Power2 340-H / Low-pressure stage
8 Troubleshooting / 8.2 Malfunctions during operation
© Copyright 2022 ABB. All rights reserved. HZTL4053_EN Rev.F March 2022
8.2 Malfunctions during operation
Lubricating oil pressure too low
Possible causes Remedy
Engine Oil filter heavily contaminated Clean
Oil pump in lubricating system de-
fective
Check/replace
Manometer displays incorrectly Replace manometer
Low-pressure
or
high-pressure
stage
Axial clearance of the rotor excessive Contact a Turbo Systems service sta-
tion
Table22: Malfunctions during operation – Lubricating oil pressure too low
Drop in low-pressure stage speed
Possible causes Remedy
Engine Defects on the connected cylinders Contact enginebuilder
Low-pressure
stage
Heavy contamination of the tur-
bine
Clean
Damaged rotor components or
bearing
Contact a Turbo Systems service sta-
tion
Change of operating state of high-
pressure stage
Check the operating point of the high-
pressure stage.
Pipes Defects, such as leaks, in the ex-
haust gas pipes or charge air ducts
Repair
Table23: Malfunctions during operation – Power2 LP speed reductions
Drop in high-pressure stage speed
Possible causes Remedy
Engine Defects on the connected cylinders Contact enginebuilder
High-pressure
stage
Heavy contamination of the turbine Clean
Damaged rotor components or bear-
ing
Contact a Turbo Systems service sta-
tion
Change of operating state of low-
pressure stage
Check the operating point of the low-
pressure stage.
Pipes Defects, such as leaks, in the exhaust
gas pipes or charge air ducts
Repair
Table24: Malfunctions during operation – Power2 HP speed reductions
Increase in low-pressure stage speed
Possible causes Remedy
Low-pressure
stage
Heavy contamination of the nozzle
ring
Contact a Turbo Systems service sta-
tion
Table25: Malfunctions during operation – Power2 LP speed increases
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