Operation Manual / Power2 340-H / Low-pressure stage
8 Troubleshooting / 8.2 Malfunctions during operation
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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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Summary of Contents for PT003924
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