ADJUSTMENTS PRIOR TO MACHINE START ADJUSTING THE HEATING AND VENTILATION SYSTEM ADJUSTING THE VENTILATION SYSTEM When the ventilation system is operated, air is blown into the driver's cab. If the cabin is closed, a light overpressure is built up, preventing dust from outside to settle down in the cab. To in- crease the volume of filtered fresh air, you can open the ventila- tion grid a little. 75_153 The air is distributed via the air ventilation nozzles (1 and 2) on the left-hand and right-hand side of the steering column. You may open or close the nozzles individually. The exhaust direc- tion can be varied using the diffusing disks.
You can direct the air ventilation nozzles (1) onto the front windshield and the air venti- lation nozzles (2) onto the side windows. 1 2 75_293 5-8