Operation Manual / TPS44-H.. - TPS52-H..
10 Dismantling and fitting / 10.7 Removing the cartridge group
© Copyright 2021 ABB. All rights reserved. HZTL4037_EN Rev.F May 2021
10.7 Removing the cartridge group
Do not remove oil orifice (if present)
Fig.30
42001 Bearing casing
42156 Oil orifice in the oil inlet
To limit the oil flow rate through the bearing casing during operation (engine under load) to
the admissible values, an oil orifice is mandatory at the oil inlet of the bearing casing if the
oil inlet pressure is >3bar (overpressure).
If an oil orifice is fitted in the oil inlet of the bearing casing, it must not be removed.
Do not loosen screw plugs
CAUTION
Oil leaks
These screw plugs must not be removed for maintenance work. If a screw
plug is loosened, the gasket can be damaged. This can result in an oil leak.
u Do not loosen screw plugs.
u If any screw plugs have been loosened accidentally, have these properly
fitted by an ABB Turbocharging Service Station.
Fig.31: Do not loosen screw plugs
Removing the turbine-end fastening strips
u Mark the casing position for assembly.
Page 77 / 111
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