CONTENTS FOREWORD TROUBLESHOOTING ........................................................................................................................................ 3-83 AFTER RUNNING OUT OF FUEL............................................................................................................ 3-83 TOWING THE MACHINE ......................................................................................................................... 3-83 LIGHT-WEIGHT TOWING HOOK ............................................................................................................
3-83 IF BATTERY IS DISCHARGED................................................................................................................ 3-84 OTHER TROUBLE ................................................................................................................................... 3-88 MAINTENANCE GUIDE TO MAINTENANCE ................................................................................................................................. 4-2 OUTLINE OF SERVICE ........................................................................................................................................
4-5 HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC...................................................... 4-5 RELATING TO ELECTRIC SYSTEM ......................................................................................................... 4-9 HANDLING HYDRAULIC SYSTEM............................................................................................................ 4-9 WEAR PARTS ....................................................................................................................................................
4-10 WEAR PARTS LIST.................................................................................................................................. 4-10 RECOMMENDED FUEL, COOLANT, AND LUBRICANT ................................................................................. 4-11 RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL........................................................................................................................................... 4-13 STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS .....................................................................
4-14 TORQUE LIST.......................................................................................................................................... 4-14 PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS .......................................................................... 4-15 SAFETY CRITICAL PARTS...................................................................................................................... 4-16 MAINTENANCE SCHEDURE CHART ...............................................................................................................
4-17 MAINTENANCE SCHEDURE CHART ..................................................................................................... 4-17 SERVICE PROCEDURE .................................................................................................................................... 4-19 INITIAL 250 HOURS SERVICE ................................................................................................................ 4-19 WHEN REQUIRED ...................................................................................................................................
4-20 CHECK BEFORE STARTING .................................................................................................................. 4-30 EVERY 100 HOURS SERVICE ................................................................................................................ 4-31 EVERY 250 HOURS SERVICE ................................................................................................................ 4-34 EVERY 500 HOURS SERVICE ................................................................................................................
4-40 EVERY 1000 HOURS SERVICE .............................................................................................................. 4-45 EVERY 2000 HOURS SERVICE .............................................................................................................. 4-46 EVERY 4000 HOURS SERVICE .............................................................................................................. 4-49 SPECIFICATIONS SPECIFICATIONS ................................................................................................................................................ 5-2 1-12