Fig. 8: Loosening The Clamping Nut - ABB HT575751 Operation Manual

Operation Manual / 4 Product description / A100-M axial
2 Removal and installation / 2.2 Removing the turbocharger
2.2.1 Loosening the clamping nut
CAUTION
Incorrect procedure can make loosening impossible
Never relieve individual pressure screws completely. If this procedure is not
complied with, the pressure screws can get compressed, thus making it im-
possible to loosen them.
Comply with the following steps for loosening the pressure screws.
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Fig. 8: Loosening the clamping nut
1. Working in a circle, break loose all pressure screws of the clamping nut.
2. Working in a circle, loosen each of the pressure screws by about ¼ of a turn (90°).
3. Repeat the previous step until all pressure screws are relieved of pressure.
Unscrew and remove the clamping nut by hand.
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CAUTION
Do not clean pressure screws
The pressure screws are equipped with a permanent sliding layer that must
not be removed.
Do neither clean nor lubricate the pressure screws. In case of non-compli-
ance, it cannot be ensured that the necessary tension force is reached.
Do not clean pressure screws.
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Do not lubricate pressure screws.
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© Copyright 2017 ABB. All rights reserved. HZTL4033_DE Revision B December 2017