Fig. 63: Ensuring Clamping Of The Cover Ring; Table 48: Required Washers (01); Table 49: Tightening Torque (57005) - ABB A270-L59 Operation Manual

Operation Manual / 4 Product description / A200-L
9 Taking a turbocharger out of operation / 9.3 Procedure with one in-
stalled turbocharger
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.
Close the lubricating oil supply to the turbocharger.
u
Open the bypass around the turbocharger.
u
Observe specifications from enginebuilder.
u
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
A265-L
A270-L
A275-L
A280-L
Table 48: Required washers (01)
Part number
57005
Table 49: Tightening torque (57005)
© Copyright 2018 ABB. All rights reserved.
h [mm]
3.5 ... 4.0
3.5 ... 4.0
4.0 ... 5.0
4.0 ... 5.0
A265-L A270-L
M12 M12
50 Nm 50 Nm
HZTL4036_EN
d1 [mm]
13
13
17
21
A275-L
M16
80 Nm
Revision M
d2 [mm]
20
20
28
34
A280-L
M20
160 Nm
August 2018