Operation Manual / 4 Product description / A150-M56/66/57/67 -
A155-M..
15 Mothballing the turbocharger / 15.2 Taking the engine out of opera-
tion for more than 12months
© Copyright 2020 ABB. All rights reserved. HZTL4032_EN Rev.P March 2020
u Coat plain surfaces of steel and cast parts with anticorrosive oil.
u Fit turbocharger completely.
Rotation of the rotor in the 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.
15.2 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
turbocharger:
¡ Turbocharger remains attached to the engine
¡ The casings of the turbocharger remain attached to the engine, the rotor and bearing
parts are dismantled by an ABB Turbocharging Service Station and stored separately
¡ The turbocharger is completely removed, either as a whole unit or in individual parts
For the measures always necessary for preparing the turbocharger parts for mothballing,
see section Taking the engine out of operation for up to 12months, subsection Preparations
for mothballing.
If the turbocharger remains attached to the engine, see section Taking the engine out of op-
eration for up to 12months →155, subsection Rotor turning in stack draught.
If the complete turbocharger is removed or the turbocharger is assembled again from the
individual parts:
u Seal all openings of the turbocharger 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 turbocharger
u Check the turbocharger parts annually for corrosion.
u If there are signs of rust: Thoroughly clean parts and renew corrosion protection.
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