Komatsu WA270-3H Operation & Maintenance Manual Download

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Contents

ADJUSTING THE STEERING COLUMN .................................................................................... 2-39

SWITCHING THE ENGINE ON AND OFF ....................................................................................... 2-40

BEFORE STARTING THE ENGINE ............................................................................................. 2-40
STARTING THE ENGINE ............................................................................................................ 2-41
AFTER STARTING THE ENGINE ............................................................................................... 2-42
SWITCHING OFF THE ENGINE ................................................................................................. 2-43

AFTER MACHINE OPERATION ....................................................................................................... 2-43
DRIVING .......................................................................................................................................... 2-44

START-UP ................................................................................................................................... 2-44
STARTING UP ON HILLS AND SLOPES .................................................................................... 2-45

GEAR SHIFTING ............................................................................................................................. 2-46

GEAR SELECTION ..................................................................................................................... 2-46
AUTOMATIC GEAR-SHIFT ......................................................................................................... 2-46
KICK-DOWN FUNCTION ............................................................................................................ 2-46

CHANGING THE DRIVING DIRECTION ......................................................................................... 2-48
STEERING AND TURNING .............................................................................................................. 2-48
STOPPING ....................................................................................................................................... 2-49

PARKING THE MACHINE ON SLOPES ..................................................................................... 2-49

CONTROL LEVERS FOR THE WORK HYDRAULIC SYSTEM ....................................................... 2-50

CONTROL LEVER FOR THE WORK UNIT ................................................................................ 2-50

MULTIFUNCTIONAL LEVER FOR THE WORK HYDRAULIC SYSTEM .......................................... 2-51

CONTROL LEVER FOR SPECIAL EQUIPMENT ....................................................................... 2-51

WORKING WITH THE MACHINE .................................................................................................... 2-52

EXCAVATING ............................................................................................................................... 2-52
LEVELLING ................................................................................................................................. 2-54
DOZING ...................................................................................................................................... 2-54
LOADING AND TRANSPORTING ............................................................................................... 2-54
LOADING .................................................................................................................................... 2-55
LOADING IN DIAGONAL DIRECTION ....................................................................................... 2-55
V-SHAPED LOADING ................................................................................................................. 2-55

ADJUSTING THE WORK UNIT ....................................................................................................... 2-56

LIFT LIMIT SWITCH ................................................................................................................... 2-56
BUCKET RETURN MECHANISM ............................................................................................... 2-57
BUCKET LEVEL INDICATOR ...................................................................................................... 2-57

PRECAUTIONS FOR SPECIAL OPERATIONS ............................................................................... 2-58

WORKING IN WATER ................................................................................................................. 2-58
IF THE WHEEL BRAKE BREAKS DOWN .................................................................................. 2-58
TURNING ON SLOPES, DAMS OR HILLS ................................................................................. 2-58
BRAKING ON SLOPES .............................................................................................................. 2-58
IF THE ENGINE BREAKS DOWN .............................................................................................. 2-58

TYRES ............................................................................................................................................. 2-59

HOW TO HANDLE TYRES ......................................................................................................... 2-59
TYRE AIR PRESSURE ................................................................................................................ 2-59
VISUAL INSPECTION ................................................................................................................. 2-59
DRIVING LONGER DISTANCES ................................................................................................ 2-60

TYRES AND TYRE PRESSURES .................................................................................................... 2-60
WINTER OPERATION ..................................................................................................................... 2-62

BEFORE THE COLD SEASON ................................................................................................... 2-62
AFTER OPERATION ................................................................................................................... 2-63
AFTER THE COLD SEASON ...................................................................................................... 2-63

LONG-TERM SHUTDOWN ............................................................................................................. 2-64

PRIOR TO SHUTDOWN ............................................................................................................. 2-64
DURING SHUTDOWN ................................................................................................................ 2-64
AFTER THE SHUTDOWN .......................................................................................................... 2-64