Maintenance 5 Heater/air conditioning – cleaning/replacing filter fleece Clean filter fleece of heater unit NOTE If the filter fleece is too dirty it must be replaced. 1. Remove screws on the front cover (1) on the driver's cab (4 screws). 2. Withdraw filter (2) from the heater unit (3). 3. Clean the filter in warm water (30 - 40°C) which has had a little household cleaning solvent added to it. Caution: Neither rub the filter fleece nor wring it out. 4. Allow the filter fleece to dry. 5. Insert dried filter fleece (2) back into the heater unit (3). 1 2 3 6. Open all air circulation nozzles and air outlet nozzles (see arrows). 7.
Switch on the blower and check the air flow at the air-outlet nozzles to the right and left of the steering column. Caution: The right and left circulating air jets (arrow) must be open. 8. If the air flow is still too weak the filter fleece must be replaced. 9. Screw front cover (1) back on. WA90-5 – VEAM270100 5-57