. MAINTENANCE SERVICE PROCEDURE SERVICE PROCEDURE EVERY 500 HOURS, EVERY 1000 HOURS, EVERY 4 - 20 INITIAL 250 HOURS SERVICE (ONLY AFTER THE FIRST 250 HOURS) Perform th e following m aintenance onl y after the first 250 hours.
Change oil i n engine oil pan , replace engine oi l filte r cartridge Replace fue l prefilter cartrid Replace fue l main filte r cartridge Replace transmission filter e lement (valve side , brake cooling side) Change oil i n transmission c ase Change oil i n brake oi l tank, replace brake oil f ilter element Change oil i n final dri ve cas Change oil i n differen tial cas Replace hydraulic filte r element Change oil i n hydrauli c tank For he metho maintaining 2000 HOURS SERVICE and E VERY 4 000 HOURS S