ABB HT596419 Operation Manual page 58

Operation Manual / TPL65VA32 / VA33
5 Maintenance / 5.5 Cleaning components mechanically
5.5.2 Cartridge group – General
© Copyright 2020 . All rights reserved.
CAUTION
Choosing cleaning tools
Turbocharger components are sensitive to mechanical damage. The
use of needle guns or other impact tools, for example, damages the
components. Depending on the specification, nozzle rings have pro-
tective coatings, which can also be damaged.
Only use soft tools such as scouring cloths, brushes or wire brushes.
u
In the event of heavy contamination, the cleaning methods de-
u
scribed in this chapter such as soaking can be repeated until a satis-
factory result has been achieved.
The disassembly and assembly of the components is described in
chapter Fitting and dismantling.
Dispose of contaminated water and cleaning agents in an environ-
u
mentally compatible manner, professionally and in accordance with
valid local regulations.
CAUTION
Risk of damage during mechanical cleaning
If mechanical cleaning is carried out too often, this can lead to damage
and corrosion on the components.
Perform mechanical cleaning, especially of the cartridge group, only
u
once within the service interval.
CAUTION
Corrosion
If the cartridge group is not put into operation again immediately after
cleaning, parts may corrode.
Re-install and use the cartridge group immediately after cleaning.
u
Remove turbocharger from the engine (see chapter Removal and in-
u
stallation).
Remove cartridge group (see chapter Disassembly and assembly).
u
First clean the compressor end and then the turbine end in accordance
with the following description.
HZTL2464_EN Rev.E March 2020