MAINTENANCE AFTER THE FIRST 50 OPERATING HOURS CHECKING AND TIGHTENING THE WHEEL NUTS Loose wheel nuts may cause severe accidents! Regularly check and tighten the wheel nuts. Retight loose nuts. Tightening torque: 45.89 kgm to 50.989 kgm (450 - 500 Nm) If a threaded bolt breaks, replace all threaded bolts of the respective wheel. 75_159 7-36