ABB Power2 550-M44 Operation Manual page 55

Operation Manual / Power2 550-M / High-pressure stage
6 Operation and service / 6.2 Service work
6.2.4 Service work every 12000 ... 15000 operating hours
The rotor and bearing parts must be checked and assessed by a Turbo Systems service sta-
tion.
Remove low-pressure and high-pressure stage from the engine and dismantle according
u
to chapter Disassembly and assembly. Measure clearances.
Clean nozzle ring and casing and check for cracks and erosion/corrosion.
u
Additional measures in conjunction with the high-pressure stage:
Replace gaskets every time after disassembly.
u
Check bellows between air-inlet casing and compressor casing for cracks and clean (see
u
also chapter Cleaning the high-pressure stage bellows (if present)
6.2.5 Service work according to specifications on the rating
plate
The following work must be carried out by a Turbo Systems service station:
¡
Replacement of the bearing parts
¡ Replacement of the turbine and the compressor.
6.2.6 Entries in the engine logbook
The monitoring of the engine enables conclusions to be drawn on the behaviour of the low-
pressure and high-pressure stage.
The following operating data and measured values must be entered regularly in the engine
logbook of the enginebuilder:
¡
Performance and speed of the engine
¡
Air intake temperature
¡
Pressure of the charge air
¡
Pressure loss in the charge air cooler and intercooler
¡
Lubricating oil pressure and lubricating oil temperature
If present:
¡
Speed of low-pressure and high-pressure stage
¡ Air temperature before and after the compressor and after the charge air cooler
¡
Exhaust gas temperature before and after the turbine
¡
Atmospheric humidity of the suction air (before the low-pressure stage)
© Copyright 2022 ABB. All rights reserved. HZTL4058_EN
→60).
Rev.F March 2022