Assembly Instructions / TPL85-B14/B15/B16, TPL91-B
4 Installing the turbocharger / 4.1 Steps for fastening the turbochar-
ger
© Copyright 2020 ABB. All rights reserved. HZTL455311P0020_EN Rev.A July 2020
4.1 Steps for fastening the turbocharger
General information
Subject Requirement / Information
Turbocharger fixing elements ISO strength class ≥ 8.8
Washers Hardened, thickness ≥15% nominal thread
diameter
Dimension a (compressor end) a = height of turbocharger foot a
Dimension a (turbine end) a = height of turbocharger foot F + spacer
sleeve D
Dimension b Hole in bracket
Dimension c Thread length ≥1.5 times the nominal thread
diameter
Coefficient of friction 0.12 (lightly oiled)
Table5
NOTICE
Strength classes of screws
In order to install the turbocharger, screws with a higher strength class than
8.8 can also be used.
The tightening torques and tightening angles remain the same as with
strength class 8.8.
Compressor-end foot
Turbine-end foot
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