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Assembly Instructions / Power2 850-M
5 Installing the high-pressure stage /
5
Installing the high-pressure stage
Fixing elements and installation force
The fixing screws and sleeves for fastening the high-pressure stage are not included in the
ABB Turbo Systems scope of delivery and must be designed by the enginebuilder in accord-
ance with the following details.
Bearing casing
Fig. 6: Fixing elements
Subject
Fixing elements
Washers under the screw head
or nut
Sleeves
Table 10: Fixing elements
The required installation pre-tension force for the fixing elements of the turbocharger are
defined in table
(see Table 11: Fixing element requirements
ing method must be chosen for assembly. For the case of the torque-controlled tightening
method, an appropriate tightening torque is defined in table
requirements →14)
in accordance with VDI2230.
Power2
Subject
850 HP
Thread size
Quantity
High-pressure stage clamping length a
Minimum screw-in depth E
Bracket clearance depth D
Bracket clearance diameter G
Installation pre-tensioning force F
Sleeve outside diameter d
Sleeve inside diameter d
Sleeve length l
Tightening torque M
(in accordance with VDI 2230, M20, 10.9,
μ
=0.12)
G
Table 11: Fixing element requirements
© Copyright 2019 ABB. All rights reserved.
Requirements
Plug bolt or screw with washer
Use hardened washers,
thickness ≥ 15% of the nominal thread diameter
Strength class 10.9 (DIN EN ISO 898-1)
min
M
a,H
i,H
H
A
HZTL455311P0010_EN
Support
→14). An appropriate tighten-
(see Table 11: Fixing element
Requirements
Bearing casing
M20
2
50 mm
30 mm
20 mm
30 +0.02 -0 mm
190 kN
30 +0.021 +0.008 mm
Chamfering 0.5x45°
22 mm
35 mm
600 Nm
Revision A
Requirements
Support profile
M20
3
30 mm
30 mm
40 mm
22 mm
190 kN
--
--
--
600 Nm
March 2019
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