Fig. 24: Oil Orifice - ABB HT613221 Operation Manual

Operation Manual / A150-M58/68
4 Commissioning / 4.1 Oil supply
4.1.5 Oil orifice in the bearing casing
Fig. 24: Oil orifice
01 Bearing casing
02 Screw plug (left or right)
03 Screw plug with orifice hole (left or right) (see also Inserting gaskets)
With an oil inlet pressure of more than 3 bar of overpressure (with engine under load) up-
stream of the turbocharger, an oil orifice must be installed to reduce the oil pressure.
© Copyright 2022 ABB. All rights reserved. HZTL4041_EN Rev.F February 2022