FILTER OVERVIEW WITH SERVICE INTERVALS 9020 Series Tractors ENGINE SECONDARY AIR FILTER (9100-9200) ­ RE63932 Replace annually and as required. CAB RECIRCULATION AIR FILTER (9120-9620) ­ RE187966 Clean every 250 hours and replace annually. ENGINE PRIMARY AIR FILTER (9100-9200) ­ RE63931 Replace annually and as required. CAB ACTIVATED CARBON RECIRCULATION AIR FILTER (9120-9520) ­ RE199682 Do NOT clean. Change annually, after 500 hours, or as required. ENGINE OIL FILTER (9120) ­ RE509672 OIL FILTER (9220-9620) ­ RE58935 Replace after 100 hours and then every 250 hours. Initial oil and filter change is 100 hours maximum of operation. Scheduled interval can be extended to 375 hours if PLUS-50TM oil and a John Deere filter are used. CAB OIL, HIGH FLOW (Scraper Tractor, 9320-9520) ­ T175002 Replace every 750 hours. CAB FRESH AIR FILTER, HEAVY DUTY (9120-9620) ­ RE67829 AIR FILTER, STANDARD (9120-9620) ­ RE24619 TRANSMISSION OIL FILTER (9120-9620) ­ RE174130 Replace after 100 and 750 hours, and then every 750 hours. Clean every 250 hours and replace annually. CAB ACTIVATED CARBON AIR FILTER (9120-9520) ­ RE199681 Do NOT clean. Change annually, after 500 hours, or as required. ENGINE ­ 9220-9620 Single filter system ­ use with 6125HRW13/6125HRW15 FUEL FILTER ­ RE507284 Replace after 100 hours, then every 500 hours Two filter system ­ use with 6125HRW16/6125HRW17/6125HRW18 PRIMARY FUEL FILTER ­ RE515345 SECONDARY FUEL FILTER ­ RE506428 Replace every 250 hours. ENGINE ­ 9120 Single filter system, up to engine serial no. 232462 FUEL FILTER ­ RE522372 FUEL PRE FILTER ­ R502778 Replace after 100 hours, then every 500 hours Two filter system, from engine serial no. 232463 PRIMARY FUEL FILTER ­ RE522687 SECONDARY FUEL FILTER ­ RE522688 Replace every 250 hours. HYDRAULICS AIR, HYDRAULIC RESERVOIR (9120-9620) ­ AT101565 Replace every 750 hours. HYDRAULICS HYDRAULIC OIL FILTER (9120-9620) ­ RE174130 Replace after 100 and 750 hours, and then every 750 hours. March 2009. Subject to change without notice. ...