MAINTENANCE PLAN To change the safety cartridge (6), after removing the primary el- ement (3), proceed as follows: 1 - Remove the safety cartridge (6) and replace it with a new one. 2 - Once the safety cartridge (6) has been installed inside the fil- ter case (4), make sure that it is perfectly housed in its seat. 3 - Reassemble the whole as described above, making sure that all the filter components are perfectly locked. 4 - Push the safety lock (1) towards the inside. 167 4.7.1.b CHECKING AND CLEANING THE CAB AIR FILTERS DANGER • Always wear safety goggles during the cleaning opera- tions. DANGER • Always wear safety goggles during the cleaning opera- tions.
The air suction for the ventilation of the cab is protected by a fil- ter positioned on the right side of the cab. This filter blocks all the impurities contained in the air and must be cleaned whenever a decrease in air circulation is observed. The filter can be reached from the outside of the cab. To clean the filtering element, proceed as follows: 1 - Remove the screws (1), remove the external protection (2) and extract the filtering element (3). 2 - Hit the element slightly on the palm of your hand to eliminate the dust and blow compressed air on its surfaces, keeping the jet at a distance of about 15 cm and making sure that the pressure does not exceed 4÷5 bars.
3 - Carefully clean the filter casing, taking care to prevent any foreign body from entering the suction duct, and reassemble the unit. If the machine is provided with air conditioning system, besides the external filter (3) there is also an additional internal filter (6) for the internal air recirculation. This is a filter that holds the im- purities present in the air and it must be cleaned whenever a de- crease in the air circulation is observed. The filter can be reached from the inside of the cab and to clean the filtering ele- ment it is necessary to proceed as follows: 1 - Remove the screws (4), remove the outer guard (5) and ex- tract the filtering element (6).
2 - Hit the element slightly on the palm of your hand to eliminate the dust and blow compressed air on its surfaces, keeping the jet at a distance of about 15 cm and making sure that the pressure does not exceed 4÷5 bars. 3 - Carefully clean the filter casing, taking care to prevent any foreign body from entering the suction duct, and reassemble the unit.