ABB A170-M Series - Fig. 16: Tightening the Clamping Nut (2); Table 4: Clamping Screw Tightening Torques

Operation Manual / 4 Product description / A100-M axial
2 Removal and installation / 2.3 Installing the turbocharger
© Copyright 2019 ABB. All rights reserved. HZTL4033_DE Revision C February 2019
Fig.16: Tightening the clamping nut (2)
Torque-controlled tightening
Product Fixing screw
[mm]
Tightening torques of pressure screws
[Nm]
A170-M M30 45
A175-M M36 85
Table4: Clamping screw tightening torques
1. Screw in pressure screws crosswise by hand until reaching the stop.
2. Tighten pressure screws crosswise to 50% of the tightening torque specified in the
table.
3. Tighten pressure screws crosswise to 100% of the tightening torque specified in the
table.
4. Work in a circle to tighten all pressure screws to 100% of the tightening torque specified
in the table.
5. Tighten pressure screws to 100% in 5…7 rounds until the required residual tightening
angle of <20° is achieved.
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