ABB Power2 800-M, Assembly Instructions Manual, Page: 16 / 24

Assembly Instructions / Power2 850-M
5 Installing the high-pressure stage / ​
© Copyright 2019 ABB. All rights reserved. HZTL455311P0010_EN Revision A March 2019
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 Support
Fig. 6: Fixing elements
Subject Requirements
Fixing elements Plug bolt or screw with washer
Washers under the screw head
or nut Use hardened washers,
thickness
≥ 15% of the nominal thread diameter
Sleeves Strength class 10.9 (DIN EN ISO 898-1)
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 → 14) . An appropriate tighten-
ing method must be chosen for assembly. For the case of the torque-controlled tightening
method, an appropriate tightening torque is defined in table
(see Table 11: Fixing element
requirements → 14) in accordance with VDI2230.
Power2 Subject Requirements
Bearing casing
Requirements
Support profile
850 HP Thread size M20 M20
Quantity 2 3
High-pressure stage clamping length a 50 mm 30 mm
Minimum screw-in depth E
min
30 mm 30 mm
Bracket clearance depth D 20 mm 40 mm
Bracket clearance diameter G 30 +0.02 -0 mm 22 mm
Installation pre-tensioning force F
M
190 kN 190 kN
Sleeve outside diameter d
a,H
30 +0.021 +0.008 mm
Chamfering 0.5x45°
--
Sleeve inside diameter d
i,H
22 mm --
Sleeve length l
H
35 mm --
Tightening torque M
A
(in accordance with VDI 2230, M20, 10.9,
μ
G
=0.12)
600 Nm 600 Nm
Table 11: Fixing element requirements
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