Basic settings and service procedures BR/BD 100/250 R BP / RIPage 108 / 171 Service Manual 08.20075.4.4 Brush head - maintenance workCheck brush rollers for foreign matter andremoveIf the foreign matter is stick on the brush roller,this can impair the cleaning result.– Remove foreign matter from the brush roller.Check/adjust splash guard stripsThe side splash guard (2) must lie on the floorwhen the brush head is lowered (1), so that nowater can escape from the side.– Check/replace.1 Brush head (BR version)2 Splash guard3 Brush pattern of the rear brush roller4 Brush pattern of the front brush roller5 Adjusting screws (2x) (BR version)Adjust the parallel brush patternCheck brush pattern (BR/BD)BR version:– Coat a flat area with chalk and drive over it withthe machine.– Lower the brush head (1) in tester mode (seeChapter 5.1) and let the brushes run forapprox 3 seconds.– Raise the brush head (1) and reverse with themachine.– Check the brush pattern (3, 4).– The brush pattern of both brush rollers mustbe parallel and symetrical.Brush pattern2431Note:In the BD version it must only be noted thatin the lowered position the brush head lieshorizontally on the floor surface.Adjust brush pattern (BR/BD)– Secure the machine against rolling away.– Set program switch (S9) to position 6 (poli-shing - vacuuming) and completely lower thebrush head (brush head must lie on theground).Adjusting screws5