Operation Manual / A170-M.. - A175-M..
10 Taking a turbocharger out of operation / 10.1 Possible emergency
repairs
© Copyright 2022 ABB. All rights reserved. HZTL4033_EN Rev.K January 2022
10 Taking a turbocharger out of operation
10.1 Possible emergency repairs
CAUTION
Machine damage in emergency operation
The assembly of the locking device on the turbocharger is only permissible
in emergencies. It is not permitted to lock the rotor for an engine test. Seri-
ous damage to engine or property can be caused by non-compliance with
the regulations in the event of an emergency.
u The permissible turbocharger speed for the unlocked turbocharger may
not exceed n
Bmax
. Take note of the rating plate.
u After locking the turbocharger, contact an ABB Turbocharging Service
Station and find the nearest port.
u Observe the safety regulations.
u Follow the directives of the enginebuilder.
WARNING
Danger of fire and explosion due to lubricating oil leaks
Leaking oil may ignite on hot surfaces. This can result in serious injuries to
personnel or fatal accidents.
u Cordon off danger area.
u Raise the alarm and, depending on the situation, stop the engine.
u Seal the oil leak.
u Soak up oil and dispose of in an environmentally compatible manner.
Wear safety gloves to protect against thermal hazards.
If damage has occurred to the turbocharger and the engine has to be brought back into op-
eration again as quickly as possible, the following emergency repair options are available:
¡ Lock the rotor
¡ Attach a cover plate
¡ Blank off the inlet and outlet flanges of casings
¡ Bypass the turbocharger
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