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Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30

5 Maintenance / 5.5 Cleaning components mechanically

5.5 Cleaning components mechanically

5.5.1 Introduction

Compressor wheels can be heavily contaminated by badly filtered intake

air, as can turbines by heavy fuel oil operation or coked oil. Such contam-

ination may possibly no longer be removed through cleaning during op-

eration and must be cleaned mechanically during the standard service in-

tervals (see chapter entitled Service work).

Professional overhauling of the components by an ABB Turbocharging

Service Station is required, preferably using the cleaning method de-

scribed in the following.

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.

u Only use soft tools such as scouring cloths, brushes or wire brushes.

u In the event of heavy contamination, the cleaning methods de-

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.

u Dispose of contaminated water and cleaning agents in an environ-

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.

u Perform mechanical cleaning, especially of the cartridge group, only

once within the service interval.

Page 62 / 136

ABB TPL69-A30 User Manual

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