MAINTENANCE 24. SERVICE PROCEDURE 24.1 INITIAL 250 HOURS SERVICE Perform these maintenance after the first 250 hours of operation. REPLACE FUEL FILTER CARTRIDGE REPLACE TRANSMISSION OIL FILTER ELEMENT REPLACE HYDRAULIC TANK FILTER ELEMENT For details of the method of replacing or maintaining, see the sections on 500 HOURS and 2000 HOURS SERVICE. 3-29 WA420-3MC