ABB XAC19590 - Fig. 63: Ensuring Clamping of the Cover Ring; Table 48: Required Washers (01); Table 49: Tightening Torque (57005)

Operation Manual / 4 Product description / A200-L
9 Taking a turbocharger out of operation / 9.3 Procedure with one in-
stalled turbocharger
© Copyright 2018 ABB. All rights reserved. HZTL4036_EN Revision M August 2018
9.3.2 Engines with bypass around the turbocharger
The chapter only applies for engines with one turbocharger and for systems on which the
connections for a bypass have been prepared and the necessary pipe connections have been
provided.
u Close the lubricating oil supply to the turbocharger.
u Open the bypass around the turbocharger.
u Observe specifications from enginebuilder.
9.3.3 Engines without bypass around the turbocharger
If the nozzle ring is removed (not mandatory), higher engine performance can be achieved.
(More information about dismantling the nozzle ring)
Securing the cover ring
If the nozzle ring is removed for emergency operation, the clamping of the cover ring (57001)
to the gas outlet casing must be ensured. In this case, additional washers(01) must be
provided in accordance with the following table. These washers(01) are not supplied by ABB.
Fig.63: Ensuring clamping of the cover ring
Product h [mm] d1 [mm] d2 [mm]
A265-L 3.5 … 4.0 13 20
A270-L 3.5 … 4.0 13 20
A275-L 4.0 … 5.0 17 28
A280-L 4.0 … 5.0 21 34
Table48: Required washers (01)
Part number A265-L A270-L A275-L A280-L
57005 M12
50Nm
M12
50Nm
M16
80Nm
M20
160Nm
Table49: Tightening torque (57005)
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