MAINTENANCE 24. SERVICE PROCEDURE 24.1 INITIAL 250 HOURS SERVICE Carry out the following maintenance only after the first 250 hours. 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. 3-30 WA320-3MC