Contents - Komatsu WA320-5H Operation & Maintenance Manual

FOREWORD
CENTRAL WARNING LAMP .................................................................................................................... 3-7
CHARACTER DISPLAY PORTION .......................................................................................................... 3-8
EMERGENCY STOP ITEM .................................................................................................................... 3-14
CAUTION ITEMS.................................................................................................................................... 3-16
WARNING/LIMIT FUNCTIONS FOR TRAVEL SPEED.......................................................................... 3-18
INSPECTION AND MAINTENANCE ITEM............................................................................................. 3-19
PILOT DISPLAY PORTION .................................................................................................................... 3-22
METER DISPLAY PORTION.................................................................................................................. 3-25
OTHER FUNCTIONS OF MACHINE MONITOR.................................................................................... 3-27
SWITCHES .................................................................................................................................................. 3-30
CONTROL LEVERS, PEDALS .................................................................................................................... 3-39
STEERING TILT LOCK LEVER................................................................................................................... 3-43
CAP AND COVER WITH LOCK .................................................................................................................. 3-43
SAFETY BAR............................................................................................................................................... 3-44
TOWING PIN ............................................................................................................................................... 3-45
GREASE PUMP........................................................................................................................................... 3-45
CAB DOOR INNER LOCK........................................................................................................................... 3-45
CAB DOOR OPEN LOCK............................................................................................................................ 3-46
CAB WINDOW OPEN LOCK CANCEL KNOB ............................................................................................ 3-46
FUSE ........................................................................................................................................................... 3-46
FUSE CAPACITY AND NAME OF CIRCUIT.......................................................................................... 3-47
SLOW BLOW FUSE .................................................................................................................................... 3-48
POWER OUTLET ........................................................................................................................................ 3-48
STORAGE BOX........................................................................................................................................... 3-48
AIR CONDITIONER..................................................................................................................................... 3-49
GENERAL LOCATIONS AND FUNCTION OF CONTROL PANEL ....................................................... 3-49
METHOD OF OPERATION .................................................................................................................... 3-52
PRECAUTIONS WHEN USING.............................................................................................................. 3-53
HANDLING CAB WIPER ............................................................................................................................. 3-53
PREVENTING DAMAGE TO WIPER ARM BRACKET .......................................................................... 3-53
OPERATION..................................................................................................................................................... 3-54
CHECK BEFORE STARTING ENGINE, ADJUST....................................................................................... 3-54
WALK-AROUND CHECK ....................................................................................................................... 3-54
CHECK BEFORE STARTING ................................................................................................................ 3-57
ADJUSTMENT........................................................................................................................................ 3-63
OPERATIONS AND CHECKS BEFORE STARTING ENGINE .............................................................. 3-68
STARTING ENGINE .................................................................................................................................... 3-70
NORMAL STARTING ............................................................................................................................. 3-70
STARTING IN COLD WEATHER ........................................................................................................... 3-72
OPERATIONS AND CHECKS AFTER STARTING ENGINE ...................................................................... 3-74
BREAKING-IN THE MACHINE............................................................................................................... 3-74
NORMAL OPERATION .......................................................................................................................... 3-75
STOPPING ENGINE.................................................................................................................................... 3-76
MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE .................................... 3-77
MOVING THE MACHINE........................................................................................................................ 3-77
CHANGING DIRECTION........................................................................................................................ 3-79
STOPPING THE MACHINE.................................................................................................................... 3-81
TURNING..................................................................................................................................................... 3-82
EMERGENCY STEERING ..................................................................................................................... 3-83
OPERATION OF WORK EQUIPMENT ....................................................................................................... 3-84
WORK POSSIBLE USING WHEEL LOADER ............................................................................................. 3-86
DIGGING OPERATIONS........................................................................................................................ 3-86
LEVELING OPERATIONS...................................................................................................................... 3-89
PUSHING OPERATION ......................................................................................................................... 3-89
LOAD AND CARRY OPERATIONS ....................................................................................................... 3-89
LOADING OPERATIONS ....................................................................................................................... 3-90
PRECAUTIONS FOR OPERATION ............................................................................................................ 3-92
PERMISSIBLE WATER DEPTH............................................................................................................. 3-92
IF WHEEL BRAKE DOES NOT WORK.................................................................................................. 3-92

CONTENTS

1-11