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.R
August 2021
7.4.4
Turbine-end, non-rotating parts
WARNING
Handling operating materials and supplies
Swallowing or inhaling vapours of operating materials and supplies or con-
tact with them may be harmful to health.
u
Do not breathe in these substances and avoid contact with the skin.
u
Ensure proper ventilation.
u
Observe the information in the material safety data sheet for the operat-
ing materials and supplies.
u
Wear personal protective equipment (PPE) according to the material
safety data sheet.
u
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 from heavy fuel oil or coked oil, for example, 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.
Fig. 35: Turbine end, non-rotating parts
51000 Turbine casing
51301
Cleaning nozzle (optional)
57002 Gas outlet flange
01
Water pipe (provided by the customer)
56001 Nozzle ring
02
Screw connection (provided by the cus-
tomer)
56005 Lamellar sealing ring
u
Dismantle the lamellar sealing ring (56005) in the nozzle ring.
u
Place contaminated parts in hot water or in a liquid such as brake cleaner to soften the
contamination.
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Brush away the contamination or remove with a steam cleaner.
u
Repeat the soaking and brushing process if necessary.
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