Fig. 7: Loosening The Clamping Nuts - ABB HT591186 Operation Manual

Operation Manual / 4 Product description / A130-H.. - A140-H
2 Removing and Installing / 2.2 Removing the turbocharger
2.2.2 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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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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Fig. 7: Loosening the clamping nuts
Break loose each of the pressure screws and rotate them back immediately.
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Working in a circle, repeat the previous step until all of the screws have been relieved.
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Loosen clamping nut by hand.
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© Copyright 2018 ABB. All rights reserved. HZTL4030_EN Revision E September 2018