OM ET18/20/24 us 1.3 * et18_20_24w710.fm 7-4777.14 Heating, ventilation and air conditioning systemChecking/replacing the fresh-air filterThe fresh-air filter is located under the seat. Check it every 50 servicehours if it is used in a dusty environment and clean it with compressed airor a mild soap solution if necessary.Replace the fresh-air filter if it shows signs of cracks or damage, or if nomore air flows through it (clogging).CAUTIONInjury hazard due to penetration of compressed air!Can cause injuries.► Wear protective gloves and eye protection.► Do not aim the compressed air at the skin or at other people.► Do not use compressed air for cleaning your clothing.NoticeThe filter can be damaged by incorrect handling.► Do not use a damaged filter.► Ensure cleanliness when replacing the filter.► Do not brush the filter.► Only clean the filter with oil-free compressed air with a max. 2bar (29 psi).1. Stop and park the machine. Stop the engine. See “Preparinglubrication”.2. Remove screws A with a suitable tool and remove cover B.3. Check the filter.➥ If the filter is damaged or clogged: replace the filter.➥ If the filter is dirty: clean the filter.Fig. 265: Checking the fresh-air filterAB
