Fig. 22: Tightening Procedure; Table 9: Torque-Controlled Tightening Of The Pressure Screws - ABB HT612026 Operation Manual

Operation Manual / A170-M.. - A175-M..
3 Removal and installation / 3.3 Installing the turbocharger
Tightening procedure
Fig. 22: Tightening procedure
Product
A170-M
A175-M
Table 9: 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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Fixing screw [mm]
M30
M36
HZTL4033_EN
Tightening torques [Nm]
45
85
Rev.K January 2022