Operation Manual / A150-M56/66/57/67 - A155-M..
7 Periodic maintenance work / 7.4 Cleaning components mechanically
© Copyright 2021 ABB. All rights reserved. HZTL4032_EN Rev.Q January 2021
7.4.7 Cleaning the cartridge group on turbine end
Soaking the contamination
Baked layers of contamination from heavy fuel oil or coked oil occur at the turbine end. The
contamination can be removed by soaking and brushing. The procedure for soaking the lay-
ers of contamination as well as for cleaning the turbine are described in the following.
Fig.34: Soaking the turbine end
Product A [mm] B [mm] C [mm]
A150 200 35 382
A155 240 40 454
Table17: Value table for soaking
To soak the layers of contamination on the turbine, the cartridge group can be immersed
vertically in a container (02) with fluid.
u Place the container (02) inside a larger container (03) so that the overflowing fluid can be
collected.
CAUTION
Selection of the cleaning agent
Cleaning agents which contain chlorine attack metals.
u Use only pH-neutral cleaning agents which do not attack metals.
u Observe safety data sheet.
u Fill the container (02) with soaking fluid. To shorten the soaking time, the fluid can be
heated up to a maximum of 60 ºC.
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