Komatsu WA250-6 Wheel Loader Index:

CONTENTS
FOREWORD 1- 1
READ THIS MANUAL 1- 2
SAFETY INFORMATION 1- 4
SAFETY LABELS 1- 5
SAFETY LABELS USING PICTOGRAMS 1- 5
NOISE 1- 6
VIBRATION LEVELS 1- 7
VIBRATION – OPERATING CONDITION 1- 7
GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE 1- 7
INTRODUCTION 1- 8
USE OF MACHINE 1- 8
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE 1- 8
VISIBILITY FROM OPERATOR’S SEAT 1- 9
NECESSARY INFORMATION 1- 11
PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE 1- 11
ENGINE SERIAL NO. PLATE 1- 11
FLUORINATED GREENHOUSE GASES 1- 12
POSITION OF SERVICE METER 1- 12
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 1- 12
SERIAL PLATE 1- 13
DECLARATION OF CONFORMITY 1- 13
SAFETY 2- 1
SAFETY 2- 2
SAFETY LABELS 2- 5
LOCATION OF SAFETY LABELS 2- 5
SAFETY LABELS 2- 6
LOCATION OF SAFETY LABELS FOR TECHNICIAN 2- 13
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE 2- 14
PRECAUTIONS BEFORE STARTING OPERATION 2- 14
PREPARATIONS FOR SAFE OPERATION 2- 14
FIRE PREVENTION 2- 16
PRECAUTIONS WHEN GETTING ON OR OFF MACHINE 2- 17
DO NOT GET CAUGHT IN ARTICULATING PORTION 2- 20
PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES 2- 20
UNAUTHORIZED MODIFICATION 2- 20
PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS 2- 20
PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING 2- 21
PRECAUTIONS FOR OPERATION 2- 22
PRECAUTIONS FOR JOBSITE 2- 22
STARTING ENGINE 2- 25
OPERATION 2- 27
TRANSPORTATION 2- 34
TOWING 2- 35
PRECAUTIONS FOR MAINTENANCE 2- 36
PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE 2- 36
PRECAUTIONS FOR INSPECTION AND MAINTENANCE 2- 41
TIRES 2- 47
OPERATION 3- 1
GENERAL VIEW 3- 2

GENERAL VIEW OF MACHINE 3- 2
GENERAL VIEW OF CONTROLS AND GAUGES 3- 3
EXPLANATION OF COMPONENTS 3- 5
MACHINE MONITOR 3- 5
SWITCHES 3- 40
CONTROL LEVERS, PEDALS 3- 57
STEERING TILT LOCK LEVER 3- 62
CAP AND COVER WITH LOCK 3- 62
FRAME LOCK BAR 3- 63
TOWING PIN 3- 64
GREASE PUMP 3- 64
OPENING, CLOSING CAB DOORS, WINDOWS 3- 65
FUSE 3- 69
SLOW BLOW FUSE 3- 72
POWER OUTLET 3- 73
STORAGE BOX 3- 73
HANDLING REARVIEW MONITOR 3- 74
AM/FM RADIO-CASSETTE STEREO 3- 75
AM/FM RADIO 3- 92
AIR CONDITIONER 3-104
HANDLING CAB WIPER 3-111
OPERATION 3-112
CHECK BEFORE STARTING ENGINE, ADJUST 3-112
STARTING ENGINE 3-137
CHECKS AFTER STARTING ENGINE 3-141
OPERATIONS AND CHECKS AFTER STARTING ENGINE 3-142
STOPPING ENGINE 3-145
MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE 3-146
TURNING 3-150
OPERATION OF WORK EQUIPMENT 3-152
WORK POSSIBLE USING WHEEL LOADER 3-154
PRECAUTIONS FOR OPERATION 3-159
ADJUSTING WORK EQUIPMENT POSTURE 3-161
PARKING MACHINE 3-163
CHECKS AFTER COMPLETION OF OPERATION 3-165
LOCKING 3-165
HANDLING THE TIRES 3-166
TRANSPORTATION 3-168
TRANSPORTATION PROCEDURE 3-168
LOADING, UNLOADING WORK WITH TRAILERS 3-168
LIFTING MACHINE 3-172
COLD WEATHER OPERATION 3-174
PRECAUTIONS FOR LOW TEMPERATURE 3-174
PRECAUTIONS AFTER COMPLETION OF WORK 3-175
AFTER COLD WEATHER 3-175
LONG-TERM STORAGE 3-176
BEFORE STORAGE 3-176
DURING STORAGE 3-176
AFTER STORAGE 3-177
TROUBLESHOOTING 3-178

WHEN MACHINE RUNS OUT OF FUEL 3-178
METHOD OF TOWING MACHINE 3-178
IF BATTERY IS DISCHARGED 3-181
OTHER TROUBLE 3-184
MAINTENANCE 4- 1
GUIDES TO MAINTENANCE 4- 2
OUTLINES OF SERVICE 4- 4
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC 4- 4
OUTLINE OF ELECTRIC SYSTEM 4- 8
WEAR PARTS 4- 9
WEAR PARTS LIST 4- 9
RECOMMENDED FUEL, COOLANT, AND LUBRICANT 4- 11
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE 4- 12
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
DEFINED LIFE PARTS 4- 15
DEFINED LIFE PARTS LIST 4- 15
MAINTENANCE SCHEDULE CHART 4- 17
MAINTENANCE SCHEDULE CHART 4- 17
MAINTENANCE INTERVAL WHEN DIESEL FUEL MIXED WITH BIO-FUEL IS USED 4- 19
SERVICE PROCEDURE 4- 20
EVERY 10 HOURS SERVICE (ONLY FOR FIRST 50 HOURS) 4- 20
INITIAL 250 HOURS SERVICE 4- 20
INITIAL 1000 HOURS SERVICE 4- 20
WHEN REQUIRED 4- 21
CHECK BEFORE STARTING 4- 50
EVERY 50 HOURS SERVICE 4- 51
EVERY 100 HOURS SERVICE 4- 52
EVERY 250 HOURS SERVICE 4- 55
EVERY 500 HOURS SERVICE 4- 61
EVERY 1000 HOURS SERVICE 4- 69
EVERY 2000 HOURS SERVICE 4- 77
EVERY 4000 HOURS SERVICE 4- 84
EVERY 8000 HOURS SERVICE 4- 86
SPECIFICATIONS 5- 1
SPECIFICATIONS 5- 2
ATTACHMENTS, OPTIONS 6- 1
SELECTING BUCKET AND TIRES 6- 2
HANDLING HYDRAULIC QUICK COUPLER 6- 3
REMOVING ATTACHMENT 6- 3
INSTALLING ATTACHMENT 6- 5
METHOD OF USING 2 LEVERS 6- 7
EXPLANATION OF COMPONENTS 6- 7
HANDLING BATTERY DISCONNECT SWITCH 6- 9
EXPLANATION OF COMPONENTS 6- 9
HANDLING 6- 10
KOMTRAX 6- 11
POWER SUPPLY FOR KOMTRAX 6- 11