ABB Power2 850-M16 - Page 57

Operation Manual / Power2 800-M / 4 Product description
6
Periodic maintenance
Page 25 /
59
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HZTL4061_EN
Revision A
September 2016
6 Periodic maintenance
6.1 Foreword to maintenance
Maintenance work includes regular visual controls and cleaning operations which are intended
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 maintained
Recommended cleaning interval
1)
Operating state
LP compressor 25 … 100 h Engine load: 50 … 100 %
HP compressor
HP turbine stage 80 … 200 h Engine load: 25%
LP turbine stage
LP filter silencer
2)
500 h Engine stopped
Table 7: Maintenance intervals
1) If the recommended cleaning intervals are incompatible with operation of the engine, con-
tact ABB 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, ABB Turbo
Systems recommends the parallel cleaning of the LP compressors as well as the parallel
cleaning 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.