Operation Manual / 4 Product description / TPS44-H.. - TPS52-H..
7 Periodic maintenance work / 7.2 Cleaning components mechanically
© Copyright 2017 ABB. All rights reserved. HZTL4037_EN Revision E July 2017
u Dispose of contaminated water and cleaning agents in accordance with the information
in the material safety data sheet.
7.2.5 Cartridge group, general
CAUTION
Corrosion
If the cartridge group is not put back into operation immediately after clean-
ing, parts may corrode.
u Immediately after cleaning, install the cartridge group and put it back
into operation.
Compressor wheels can be heavily contaminated due to poorly filtered suction air; turbines
can be heavily contaminated due to coked oil. Contamination such as this must be removed
during the standard service intervals (see service work chapter).
u Remove turbocharger from engine (see chapter Removing and Installing →7).
u Remove cartridge group (see chapter Dismantling and fitting →46).
First clean the compressor end and then the turbine end according to the following descrip-
tion.
7.2.6 Cleaning the cartridge group on compressor end
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.
CAUTION
Water and contamination in the cartridge group
If water or contamination penetrates the cartridge group, this can impair
the function of the turbocharger and damage parts inside the cartridge
group.
u Make sure that no water or contamination can enter into the cartridge
group.
u Clean the compressor wheel with a rag or soft brush which has been soaked in water with
a household cleaning agent. Do not use wire brushes!
u Dry the compressor wheel and the gap between the compressor and the bearing casing
with low-pressure pressurized air.
u Lightly spray the compressor wheel and the gap between the compressor and the bearing
casing with penetrating oil.
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