12 Faults and remedies 12.9 Grain delivery 67088 83154 12.9.2 Installing the grain tank unloading shear bolt Observe the general warnings at the beginning of the "Trouble and remedy" chapter. The shear bolt (1) in the sprocket protects the grain tank unloading drives against damage. 1 Eliminate cause of the problem. If required install new shear bolt. Tightening torque = 24.5 Nm 2 19661 00 0293 210 2 - BA DOMINATOR 150/140/130 - 12/09 257 Shear bolt (1) 1 Hex. bolt ISO 4014 M8 x 35 -8.8 Self-locking nut ISO 7042 VM 8 -8