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 - ABB PT003888 Operation Manual

Operation Manual / Power2 340-H / Low-pressure stage
8 Troubleshooting / 8.2 Malfunctions during operation
8.2

Malfunctions during operation

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