ABB A155-M57 Operation Manual page 85

Operation Manual / 4 Product description / A150-M.. - A155-M..
6 Periodic maintenance work
6.4.3 Turbine-end, non-rotating parts
Handling operating materials and supplies
Swallowing or inhaling vapours of operating materials and supplies or con-
tact with them may be harmful to health.
WARNING
Do not breathe in these substances and avoid contact with the skin.

Ensure proper ventilation.

Observe the information in the material safety data sheet for the operating

materials and supplies.
Wear personal protective equipment (PPE) according to the material safe-

ty data sheet.
Comply with local legislation.

Wear safety goggles.
Wear safety gloves to protect against chemical hazards.
Wear a respiratory mask to protect against gases.
Baked layers of contamination, for example, from heavy fuel oil or coked oil occur at the tur-
bine end. The following parts, which are relevant in terms of performance, can be cleaned in
accordance with the description below.
Figure 24: Turbine end, non-rotating parts
51000 Turbine casing
57002 Gas outlet flange
Dismantle the lamellar sealing ring (56005) in the nozzle ring.

Place contaminated parts in hot water or in a liquid such as carbon remover to soften the

contamination.
Brush away the contamination or remove with a steam cleaner.

If necessary, repeat soaking and brushing.

Use clean water to completely clean parts of any solvents.

Dry components completely.

© Copyright 2017 ABB. All rights reserved.
56001 Nozzle ring
56005 Lamellar sealing ring
HZTL4032_EN
Page 53 / 120
Revision F January 2017