13 Maintenance 13.15 Cleaning unit 67089 Suspend the stepped preparation floors at (A) and pull them out to the rear. Clean the stepped preparation floors. Clean the guides and push in the stepped prepa- ration floors towards the front. Suspend bracket and bolt on with nuts. Lock nuts. A A 19633 149 82787 13.15.5 Cleaning the sieves Observe the general warnings at the beginning of the "Maintenance" chapter. Clean the sieves. 19638 150 362 00 0293 210 2 - BA DOMINATOR 150/140/130 - 12/09