Komatsu — CONTENTS

CONTENTS FOREWORD CHECK VIBRATION DAMPER................................................................................................................. 4-55 CHECK BRAKE DISC WEAR................................................................................................................... 4-56 EVERY 4000 HOURS SERVICE ................................................................................................................... 4-57 LUBRICATING..........................................................................................................................................

4-57 CHECK WATER PUMP ............................................................................................................................ 4-57 CHECK AIR CONDITIONER COMPRESSOR, ADJUST ......................................................................... 4-58 REPLACE INJECTOR NOZZLE TIP ........................................................................................................ 4-58 CHECKING FOR LOOSENESS OF HIGH-PRESSURE CLAMP, HARDENING OF RUBBER ............... 4-58 CHECKING FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER.................

4-58 EVERY 8000 HOURS SERVICE ................................................................................................................... 4-59 REPLACE HIGH-PRESSURE PIPING CLAMP........................................................................................ 4-59 REPLACE FUEL SPRAY PREVENTION CAP ......................................................................................... 4-59 SPECIFICATIONS SPECIFICATIONS ................................................................................................................................................

5-2 ATTACHMENTS, OPTIONS SELECTING BUCKET AND TIRES ..................................................................................................................... 6-2 HANDLING LOAD METER .................................................................................................................................. 6-3 GENERAL LOCATIONS .................................................................................................................................. 6-3 MACHINE MONITOR WITH LOAD METER...............................................................................................

6-3 SWITCHES ................................................................................................................................................. 6-4 LOAD METER FUNCTIONS............................................................................................................................ 6-5 HANDLING LOAD METER DISPLAY.............................................................................................................. 6-8 SETTING ADDITION MODE ......................................................................................................................

6-8 SETTING REMAIN MODE........................................................................................................................ 6-10 TOTAL LOAD DATA DISPLAY................................................................................................................. 6-12 STOPPING CALCULATION ..................................................................................................................... 6-14 CARRYING OUT CALIBRATION (ADJUSTING 0 POINT) WHEN EMPTY ............................................. 6-15 CARRYING OUT CALIBRATION (ADJUSTING 0 POINT) WHEN LOADED...........................................

6-17 SUBTRACTION FUNCTION..................................................................................................................... 6-20 METHOD OF SETTING TIME ON CLOCK.................................................................................................... 6-22 PRINTER OUTPUT........................................................................................................................................ 6-24 PRINTOUT MODE....................................................................................................................................

6-24 METHOD OF SELECTING PRINTOUT MODE........................................................................................ 6-25 HANDLING TORQUE CONVERTER LOCK-UP ................................................................................................ 6-27 GENERAL LOCATIONS ................................................................................................................................ 6-27 METHOD OF OPERATION ........................................................................................................................... 6-28 WARNING/LIMIT FUNCTIONS FOR TRAVEL SPEED.................................................................................

6-29 HANDLING AUTOMATIC AIR-CONDITIONER ................................................................................................. 6-30 GENERAL LOCATIONS AND FUNCTIONS OF CONTROL PANEL ............................................................ 6-30 METHOD OF OPERATION ........................................................................................................................... 6-34 PRECAUTIONS WHEN USING..................................................................................................................... 6-36 INSPECTION AND MAINTENANCE .............................................................................................................

6-36 CENTRAL LUBRICATION ................................................................................................................................. 6-37 OPERATION.................................................................................................................................................. 6-37 JOYSTICK STEERING SYSTEM ....................................................................................................................... 6-38 COMPONENTS .............................................................................................................................................

6-38 SHIFT UP, SHIFT DOWN SWITCHES..................................................................................................... 6-38 F-N-R SWITCH ......................................................................................................................................... 6-39 JOYSTICK STEERING LEVER ................................................................................................................ 6-39 JOYSTICK ON/OFF SWITCH...................................................................................................................

6-39 HI/LOW SELECTOR SWITCH.................................................................................................................. 6-39 1-12