Fig. 35: Turbine End, Non-Rotating Parts - ABB HT612300 Operation Manual

Operation Manual / A150-M56/66/57/67 - A155-M..
7 Periodic maintenance work / 7.4 Cleaning components mechanically
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.
Do not breathe in these substances and avoid contact with the skin.
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Ensure proper ventilation.
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Observe the information in the material safety data sheet for the operat-
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ing materials and supplies.
Wear personal protective equipment (PPE) according to the material
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safety data sheet.
Comply with local legislation.
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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
57002 Gas outlet flange
56001 Nozzle ring
56005 Lamellar sealing ring
Dismantle the lamellar sealing ring (56005) in the nozzle ring.
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Place contaminated parts in hot water or in a liquid such as brake cleaner to soften the
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contamination.
Brush away the contamination or remove with a steam cleaner.
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Repeat the soaking and brushing process if necessary.
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51301 Cleaning nozzle (optional)
01 Water pipe (provided by the customer)
02 Screw connection (provided by the cus-
tomer)
HZTL4032_EN Rev.S February 2022