Operation Manual / Power2 340-H / Low-pressure stage
11 Mothballing the low-pressure stage / 11.2 Taking the engine out of
operation for more than 12 months
© Copyright 2022 ABB. All rights reserved.
HZTL4053_EN
Rev.F
March 2022
u
Completely fit low-pressure and high-pressure stage.
Rotor turning in stack draught
If the rotor turns as a result of the stack draught:
u
Install a blind flange between the outlet flange of the compressor casing and the charge
air duct.
11.2
Taking the engine out of operation for more than
12 months
If the engine is taken out of operation, the following variants are possible with regard to the
low-pressure and high-pressure stage:
¡
Low-pressure and high-pressure stage remain attached to the engine.
¡
The casings of the low-pressure and high-pressure stage remain attached to the engine,
while the rotor and bearing parts are dismantled by a Turbo Systems service station and
stored separately.
¡
Low-pressure and high-pressure stage are completely removed, either as whole units or
in single parts.
For the measures always necessary for preparing the low-pressure and high-pressure stage
for mothballing, see section Taking the engine out of operation for up to 12 months, subsec-
tion Preparations for mothballing.
If the low-pressure and the high-pressure stage remain attached to the engine, see section
Taking the engine out of operation for up to 12 months, subsection Rotor turning in stack
draught.
If the complete low-pressure and high-pressure stage are removed or if the low-pressure
and high-pressure stage are reassembled from their individual components:
u
Seal all openings of the low-pressure and high-pressure stage with paraffin paper and
wooden lids.
Only dry rooms with 40 … 70 % atmospheric humidity, in which no water condensation can
form, are suitable as storage locations.
State of the mothballed low-pressure and high-pressure stage
u
Check the low-pressure and high-pressure stage parts annually for corrosion
u
If there are signs of rust: Thoroughly clean parts and renew corrosion protection.
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Summary of Contents for PT003888
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