ABB A155-M Series - Fig. 18: Oil Orifice

Operation Manual / 4 Product description / A150-M56/66/57/67 -
A155-M..
3 Commissioning / 3.1 Oil supply
© Copyright 2020 ABB. All rights reserved. HZTL4032_EN Rev.P March 2020
3.1.5 Oil orifice in the bearing casing
Fig.18: Oil orifice
01 Bearing casing
02 Oil orifice
03 Circlip
With an oil inlet pressure of more than 3 bar of overpressure (with engine under load) up-
stream of the turbocharger, the bearing casings are equipped with an orifice at the oil inlet
as standard.
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