Fig. 13: Removing The Turbocharger - ABB HT611075 Operation Manual

Operation Manual / A150-M56/66/57/67 - A155-M..
3 Removing and Installing / 3.2 Removing the turbocharger
Fig. 13: Removing the turbocharger
Secure the lifting gear to the turbocharger (see illustration).
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If present: Loosen and remove the compressor wheel cooling connection.
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Seal the compressor wheel cooling connection (01).
If present: Disconnect the plug to the speed sensor (86505) and secure the rolled-up
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cable on the turbocharger. This protects the plug from being crushed.
If present: Detach the support (61301) from the engine support.
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3.2.1 Loosening the clamping nut
CAUTION
Incorrect procedure can make loosening impossible
If individual pressure screws are fully relieved, the pressure screws can be-
come compressed, making it impossible 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. In case of non-compliance, 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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If a screw jams, the previously loosened screw must be tightened again a little.
© Copyright 2022 ABB. All rights reserved. HZTL4032_EN Rev.S February 2022