Komatsu H70051 Series Operation & Maintenance Manual page 21

FOREWORD
WELDING INSTRUCTIONS............................................................................................................... 4-2
DO NOT DROP THINGS INSIDE MACHINE ..................................................................................... 4-2
PRECAUTIONS FOR KDPF .............................................................................................................. 4-2
PRECAUTIONS FOR SCR ASSEMBLY ............................................................................................ 4-3
DUSTY JOBSITES............................................................................................................................. 4-3
AVOID MIXING OIL............................................................................................................................ 4-3
LOCK INSPECTION COVERS .......................................................................................................... 4-3
BLEED AIR FROM HYDRAULIC CIRCUIT ........................................................................................ 4-3
PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES ............................................................. 4-3
CHECKS AFTER INSPECTION AND MAINTENANCE...................................................................... 4-3
FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE........................................... 4-4
CLOSE ENGINE SIDE COVER SECURELY...................................................................................... 4-4
OUTLINE OF MAINTENANCE.................................................................................................................. 4-5
HANDLE OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC .................................................. 4-5
HANDLE ELECTRICAL COMPONENTS ........................................................................................... 4-9
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS .............................................................. 4-10
MAINTENANCE SCHEDULE.................................................................................................................. 4-12
MAINTENANCE SCHEDULE TABLE............................................................................................... 4-12
MAINTENANCE INTERVAL WHEN DIESEL FUEL MIXED WITH BIO-FUEL IS USED ................... 4-13
MAINTENANCE PROCEDURE .............................................................................................................. 4-15
INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 100 HOURS) .................................. 4-15
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) ............................ 4-15
WHEN REQUIRED .......................................................................................................................... 4-15
CHECKS BEFORE STARTING........................................................................................................ 4-44
EVERY 50 HOURS MAINTENANCE ............................................................................................... 4-46
EVERY 100 HOURS MAINTENANCE ............................................................................................. 4-46
EVERY 250 HOURS MAINTENANCE ............................................................................................. 4-47
EVERY 500 HOURS MAINTENANCE ............................................................................................. 4-53
EVERY 1000 HOURS MAINTENANCE ........................................................................................... 4-57
EVERY 2000 HOURS MAINTENANCE ........................................................................................... 4-63
EVERY 4000 HOURS MAINTENANCE ........................................................................................... 4-80
EVERY 4500 HOURS MAINTENANCE ........................................................................................... 4-83
EVERY 8000 HOURS MAINTENANCE ........................................................................................... 4-83
EVERY 9000 HOURS MAINTENANCE ........................................................................................... 4-84
SPECIFICATIONS ........................................................................................................................................... 5-1
SPECIFICATIONS .................................................................................................................................... 5-2
SPECIFICATIONS: WA320-8............................................................................................................. 5-2
ATTACHMENTS AND OPTIONS ..................................................................................................................... 6-1
BUCKET AND TIRE SELECTION............................................................................................................. 6-2
HANDLE JOYSTICK STEERING SYSTEM .............................................................................................. 6-3
EXPLANATION OF COMPONENTS IN JOYSTICK STEERING SYSTEM......................................... 6-3
FUNCTION AND STRUCTURE OF JOYSTICK STEERING SYSTEM............................................... 6-8
PRECAUTIONS FOR HANDLING JOYSTICK STEERING SYSTEM................................................. 6-8
METHOD FOR HANDLING JOYSTICK STEERING SYSTEM........................................................... 6-9
SELECTION OF OPERATION WITH JOYSTICK STEERING LEVER AND STEERING WHEEL .....6-11
METHOD FOR GETTING ON OR OFF TO OPERATOR'S CAB .......................................................6-11
METHOD FOR ADJUSTING JOYSTICK CONSOLE ....................................................................... 6-12
HANDLE HYDRAULIC TYPE QUICK COUPLER ................................................................................... 6-14
EXPLANATION OF COMPONENTS ON MACHINES WITH QUICK COUPLER .............................. 6-14
METHOD FOR REMOVING ATTACHMENT .................................................................................... 6-15
METHOD FOR REMOVING ATTACHMENT .................................................................................... 6-17
METHOD FOR INSTALLING ATTACHMENT ................................................................................... 6-18
METHOD FOR INSTALLING ATTACHMENT ................................................................................... 6-20
PRECAUTIONS FOR USING HYDRAULIC TYPE QUICK COUPLER............................................. 6-23
HANDLE FORK ...................................................................................................................................... 6-24
EXPLANATION OF COMPONENTS ON MACHINES WITH FORK ................................................. 6-24
MACHINE OPERATIONS AND CONTROLS ................................................................................... 6-25
PCS (PROPORTIONAL CONTROL SWITCH)........................................................................................ 6-31
TABLE OF CONTENTS
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