ABB HT563462 Operation Manual page 50

Operation Manual / 4 Product description / A130-M.. - A145-M..
2 Removing and Installing
2.3.5 Fastening the turbocharger with a clamping nut
Preparations for tightening the clamping nut
Do not clean pressure screws (04)
The pressure screws are equipped with a permanent sliding layer that must
not be removed.
CAUTION
Do neither clean nor lubricate the pressure screws. In case of non-
compliance, it cannot be ensured that the necessary tension force is
reached.
Do not clean pressure screws.

Do not lubricate pressure screws.

Pressure screws (04) must not protrude from the clamping nut (03) in the di-
rection of the thrust washer (02)
NOTICE In order to correctly fit the clamping nut, the pressure screws must not pro-
trude in the direction of the thrust washer.
Figure 13: Preparing the clamping nut for the tightening procedure
1. Clean the thread of the bolt (01) and the contact surface.
2. Lightly oil the bolt thread.
3. Position the thrust washer (02) in place.
4. Tighten clamping nut (03) by hand.
5. Unscrew clamping nut (03) by ¼ of a turn (90°).
The distance between the thrust washer and the clamping nut is now about 1 mm.
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Revision D June 2016