ABB A135-M55 - Fig. 15: Tightening Pressure Screws; Table 5: Torque-Controlled Tightening of the Pressure Screws

Operation Manual / 4 Product description / A130-M.. - A145-M..
2 Removing and Installing / 2.3 Installing the turbocharger
© Copyright 2020 ABB. All rights reserved. HZTL4031_EN Rev.L July 2020
Tightening pressure screws
Fig.15: Tightening pressure screws
Product Fixing screw [mm] Tightening torques [Nm]
A140 M24 35
A145 M30 45
Table5: Torque-controlled tightening of the pressure screws
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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