Mothballing The Low-Pressure Stage; Taking The Engine Out Of Operation For Up To 12 Months - ABB PT003888 Operation Manual

Operation Manual / Power2 340-H / Low-pressure stage
11 Mothballing the low-pressure stage / 11.1 Taking the engine out of
operation for up to 12 months
11

Mothballing the low-pressure stage

11.1 Taking the engine out of operation for up to
12 months
State of the engine lubricating oil
The low-pressure and high-pressure stage normally remain attached to the engine. The
measures to be taken for mothballing of the low-pressure and high-pressure stage depend
on the state of the lubricating oil. No measures are required under the following conditions:
¡
Acid number (TAN) < 2 mg KOH/g
¡ The engine lubricating oil is replaced by a preservative oil and circulated with the pre-lub-
rication pump before the engine is taken out of operation. Residues of old engine oil are
flushed away in this way and the bearing parts are largely protected against corrosion.
Preparations for mothballing
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.
If the acid number (TAN) is greater than 2 mg KOH/g, the following mothballing measures
are necessary after the engine is taken out of operation:
Dismantle low-pressure and high-pressure stage.
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The rotor and bearing parts must be dismantled and subsequently refitted by a Turbo
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Systems service station.
Clean all parts.
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Coat plain surfaces of steel and cast parts with anticorrosive oil.
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© Copyright 2022 ABB. All rights reserved. HZTL4053_EN Rev.F March 2022