CONTENTS WEAR PARTS LIST ............................................................................................................................................. 4-9 WEAR PARTS LIST.................................................................................................................................... 4-9 USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE ..................... 4-10 PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS ......................................................... 4-10 STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS .....................................................................
4-14 TORQUE LIST.......................................................................................................................................... 4-14 PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS .......................................................................... 4-15 SAFETY CRITICAL PARTS...................................................................................................................... 4-15 MAINTENANCE SCHEDULE CHART ...............................................................................................................
4-17 MAINTENANCE SCHEDULE CHART...................................................................................................... 4-17 WHEN REQUIRED.......................................................................................................................... 4-17 CHECK BEFORE STARTING ......................................................................................................... 4-17 EVERY 50 HOURS SERVICE......................................................................................................... 4-17 EVERY 250 HOURS SERVICE.......................................................................................................
4-17 EVERY 500 HOURS SERVICE....................................................................................................... 4-17 EVERY 1000 HOURS SERVICE..................................................................................................... 4-18 EVERY 2000 HOURS SERVICE..................................................................................................... 4-18 EVERY 4000 HOURS SERVICE..................................................................................................... 4-18 SERVICE PROCEDURE ....................................................................................................................................
4-19 WHEN REQUIRED ................................................................................................................................... 4-19 CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT......................................................... 4-19 CLEAN INSIDE OF COOLING SYSTEM ........................................................................................ 4-23 CHECK TRACK SHOE TENSION, ADJUST................................................................................... 4-26 CHECK AND TIGHTEN TRACK SHOE BOLTS..............................................................................
4-28 CHECK ELECTRICAL INTAKE AIR HEATER ................................................................................ 4-28 REVERSE AND REPLACE END BITS AND CUTTING EDGES..................................................... 4-29 CLEAN, CHECK RADIATOR FINS ................................................................................................. 4-31 CHECK, ADJUST AIR CONDITIONER ........................................................................................... 4-33 GREASE DOOR HINGE..................................................................................................................
4-34 CHECK DOOR LOCK STRIKER ..................................................................................................... 4-34 REPLACE DOOR DAMPER............................................................................................................ 4-34 CHECK DOOR LATCH.................................................................................................................... 4-35 CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID .............................................................. 4-35 REPLACE WIPER BLADE ..............................................................................................................
4-36 CHECK IDLER OIL LEVEL, ADD OIL ............................................................................................. 4-37 ADJUST IDLER CLEARANCE ........................................................................................................ 4-38 CHECK LINK PITCH ....................................................................................................................... 4-38 CHECK OUTSIDE DIAMETER OF TRACK ROLLER ..................................................................... 4-39 CHECK HEIGHT OF GROUSER ....................................................................................................
4-39 ADJUST PLAY IN CENTER BALL .................................................................................................. 4-40 LUBRICATING UNIVERSAL JOINT................................................................................................ 4-41 PROCEDURE FOR BLEEDING AIR IN HYDRAULIC SYSTEM..................................................... 4-42 CHECK BEFORE STARTING .................................................................................................................. 4-43 PROCEDURE FOR RELEASING INTERNAL PRESSURE OF HYDRAULIC SYSTEM................. 4-42 1-1 4