ABB Turbocharger A135-M

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Assembly Instructions / A130-M.. - A145-M

4 Installing the turbocharger / 4.5 Fastening the turbocharger with a

clamping nut

HZTL455311P0005_EN

Rev.B July 2020

Tightening pressure screws

Fig.9: Tightening pressure screws

Product Fixing screw [mm] Tightening torques [Nm]

A140 M24 35

A145 M30 45

Table7: 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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