ABB A200-L, Operation Manual

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Operation Manual / A200-L
10 Taking a turbocharger out of operation / 10.2 Taking defective tur-
bochargers out of operation
© Copyright 2021 ABB. All rights reserved. HZTL4036_EN Rev.T December 2021
10.2.5 Engines without bypass around the turbocharger
To obtain a higher engine performance, the nozzle ring can be removed if required (see
chapter
Disassembly and assembly → 70 ).
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. 67: Ensuring clamping of the cover ring
Product h [mm] d1 [mm] d2 [mm]
A255-L 3.5 … 4.0 10 16
A260-L 3.5 … 4.0 10 16
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 49: Required washers (01)
Part number A255-L A260-L A265-L A270-L A275-L A280-L
57005 M8
20 Nm
M8
20 Nm
M12
50 Nm
M12
50 Nm
M16
80 Nm
M20
160 Nm
Table 50: Tightening torque (57005)
1. Remove screws (57005).
2. Fit and tighten screws (57005) with high-temperature grease and washers (01) in accord-
ance with the table.
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