Note: Replace screws that are tightened to the specified angle.
Tighten the bolts in sequence -1...5- in 3 stages as follows.

1. Tighten the screws by hand.
2. Tighten the screws to a torque of 20 Nm.
3. 90° (turn ¼ turn further.).
Note: Replace screws that are tightened to the specified angle.
