Fig. 64: Ensuring Clamping Of The Cover Ring; Table 48: Required Washers (01); Table 49: Tightening Torque (57005) - ABB A255-L35 Original Operation Manual

Operation Manual / 4 Product description / A200-L
9 Taking a turbocharger out of operation / 9.2 Taking defective tur-
bochargers out of operation
9.2.5 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
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. 64: Ensuring clamping of the cover ring
Product
A255-L
A260-L
A265-L
A270-L
A275-L
A280-L
Table 48: Required washers (01)
Part number A255-L
57005 M8
20 Nm
Table 49: 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.
© Copyright 2020 ABB. All rights reserved.
→53).
h [mm]
3.5 ... 4.0
3.5 ... 4.0
3.5 ... 4.0
3.5 ... 4.0
4.0 ... 5.0
4.0 ... 5.0
A260-L A265-L
M8 M12
20 Nm 50 Nm
HZTL4036_EN
d1 [mm]
10
10
13
13
17
21
A270-L A275-L
M12 M16
50 Nm 80 Nm
Rev.R
d2 [mm]
16
16
20
20
28
34
A280-L
M20
160 Nm
October 2020