Adjust the shoes by operating on the cams and the eccentrics together, so as to obtain a clearance between the arm «A» and the shoes of: - 0,15mm at points M and Ml and - 0,25mm at points M2 and M3 Measure this clearance with feelers. Tighten the nuts (1) and knock over the lock washer Fit the drum (2) and tighten the screws (3) 15. Fit the wheel and the wing. 16. Lower the vehicle to the ground.