Periodic Maintenance; Foreword To Maintenance; Table 15: Maintenance Intervals - ABB PT004165 Operation Manual

Operation Manual / Power2 850-M / High-pressure stage
7 Periodic maintenance / 7.1 Foreword to maintenance
7

Periodic maintenance

7.1

Foreword to maintenance

Maintenance work includes regular visual controls and cleaning operations which are inten-
ded to ensure the trouble-free functioning of the low-pressure and high-pressure stage.
In this process, the exterior condition and the degree of contamination of the components
on which maintenance work is to be performed are determined.
Component to be main-
tained
LP compressor
HP compressor
HP turbine stage
LP turbine stage
2)
LP filter silencer
Table 15: Maintenance intervals
1) If the recommended cleaning intervals are incompatible with operation of the engine, con-
tact Turbo Systems.
2) If present.
Compressor cleaning
We recommend cleaning the HP compressor after the LP compressor.
On V-engines with several low-pressure and/or high-pressure stages per engine, Turbo Sys-
tems recommends the parallel cleaning of the LP compressors as well as the parallel clean-
ing of the HP compressors.
This cleaning process is faster and reduces the risk of surging of the low-pressure and high-
pressure stages.
Turbine stages cleaning
We recommend cleaning the LP turbine stage after the HP turbine stage.
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Recommended cleaning interval
25 ... 100 h
80 ... 200 h
500 h
HZTL4063_EN
1)
Operating state
Engine load: 50 ... 100 %
Engine load: 25%
Engine stopped
Rev.F March 2022