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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 PROCEDURE .............................................................................................................. 4-14

INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 100 HOURS) .................................. 4-14
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) 
............................ 4-14
INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS) 
........................ 4-14
WHEN REQUIRED 
.......................................................................................................................... 4-14
CHECKS BEFORE STARTING
........................................................................................................ 4-40
EVERY 50 HOURS MAINTENANCE 
............................................................................................... 4-41
EVERY 100 HOURS MAINTENANCE 
............................................................................................. 4-41
EVERY 250 HOURS MAINTENANCE 
............................................................................................. 4-45
EVERY 500 HOURS MAINTENANCE 
............................................................................................. 4-52
EVERY 1000 HOURS MAINTENANCE 
........................................................................................... 4-56
EVERY 2000 HOURS MAINTENANCE 
........................................................................................... 4-61
EVERY 4000 HOURS MAINTENANCE 
........................................................................................... 4-77
EVERY 4500 HOURS MAINTENANCE 
........................................................................................... 4-80
EVERY 8000 HOURS MAINTENANCE 
........................................................................................... 4-80
EVERY 9000 HOURS MAINTENANCE 
........................................................................................... 4-80

SPECIFICATIONS ........................................................................................................................................... 5-1

SPECIFICATIONS .................................................................................................................................... 5-2

SPECIFICATIONS:WA270-8.............................................................................................................. 5-2

ATTACHMENTS AND OPTIONS ..................................................................................................................... 6-1

BUCKET AND TIRE SELECTION............................................................................................................. 6-2
HANDLE HYDRAULIC TYPE QUICK COUPLER 
..................................................................................... 6-3

EXPLANATION OF COMPONENTS ON MACHINES WITH QUICK COUPLER................................ 6-3
METHOD FOR REMOVING ATTACHMENT 
...................................................................................... 6-4
METHOD FOR INSTALLING ATTACHMENT 
..................................................................................... 6-5

HANDLE FORK ........................................................................................................................................ 6-8

EXPLANATION OF COMPONENTS ON MACHINES WITH FORK ................................................... 6-8
MACHINE OPERATIONS AND CONTROLS 
..................................................................................... 6-9

PCS(PROPORTIONAL CONTROL SWITCH)......................................................................................... 6-15

LCD UNIT ........................................................................................................................................ 6-15
METHOD FOR SETTING PCS 
........................................................................................................ 6-17

REPLACEMENT PARTS.................................................................................................................................. 7-1

PERIODIC REPLACEMENT OF DEFINED LIFE PARTS.......................................................................... 7-2

DEFINED LIFE PARTS LIST.............................................................................................................. 7-2

CONSUMABLE PARTS ............................................................................................................................ 7-3

CONSUMABLE PARTS LIST ............................................................................................................. 7-3

RECOMMENDED FUEL, COOLANT, AND LUBRICANT .......................................................................... 7-4

LUBRICATION CHART ...................................................................................................................... 7-5
METHOD FOR USING FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERA-

TURE ............................................................................................................................................. 7-7

RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS .............. 7-8

INDEX.............................................................................................................................................................. 8-1

TABLE OF CONTENTS

FOREWORD

1-10

Summary of Contents for WA270-8

Page 1: ...ompany It is our policy to improve our products whenever it is possible and practical to do so We reserve the right to make changes or improvements at any time without incurring any obligation to inst...

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Page 5: ...ncer birth defects and other reproductive harm CALIFORNIA Proposition 65 Warning Battery posts terminals and related accessories contain lead and lead compounds chemicals known to the State of Califor...

Page 6: ...and Maintenance Manual 1 on the left side of the operator s seat If this manual is lost or damaged contact Komatsu or your Komatsu distributor and tell them about the machine model name and the seria...

Page 7: ...s signal word indicates an imminently hazardous situation which if not avoided will result in death or serious injury This signal word indicates a potentially hazardous situation which if not avoided...

Page 8: ...e determined according to the view from the operator s seat in the direction of travel front of the machine VISIBILITY FROM OPERATOR S SEAT This machine complies with the visibility standard ISO5006 T...

Page 9: ...ammonia generated from the urea solution and decomposes the nitrogen oxides into nitrogen and water About Diesel Exhaust Fluid DEF Diesel Exhaust Fluid is the aqueous urea solution for the SCR system...

Page 10: ...R PIN MACHINE SERI AL NO PLATE This is located at the center of the front frame on the right side of the machine The design of the nameplate differs according to the district LOCATION OF ENGINE NUMBER...

Page 11: ...center bottom of the machine monitor YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR Machine serial No Engine serial No Product identification number PIN Distributor name Address Phone Fax Service personn...

Page 12: ...2 21 UNAUTHORIZED MODIFICATION 2 21 PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS 2 21 PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING 2 21 PRECAUTIONS FOR OPERATION 2 22 PRECAUTIONS FOR JOBSITE 2 22...

Page 13: ...LD WEATHER OPERATION INFORMATION 3 229 PRECAUTIONS AFTER DAILY WORK COMPLETION 3 230 PRECAUTIONS IN COLD WEATHER 3 230 AFTER COLD WEATHER SEASON 3 230 PRECAUTIONS FOR LONG TERM STORAGE 3 231 PREPARATI...

Page 14: ...E 4 61 EVERY 4000 HOURS MAINTENANCE 4 77 EVERY 4500 HOURS MAINTENANCE 4 80 EVERY 8000 HOURS MAINTENANCE 4 80 EVERY 9000 HOURS MAINTENANCE 4 80 SPECIFICATIONS 5 1 SPECIFICATIONS 5 2 SPECIFICATIONS WA27...

Page 15: ...se read and make sure that you fully understand the precautions descri bed in this manual and the safety labels on the machine When operating or servicing the machine always follow these precautions s...

Page 16: ...FOR CLEANING CAB GLASS 2 20 DO NOT GET CAUGHT 2 20 PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES 2 21 UNAUTHORIZED MODIFICATION 2 21 PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS 2 21 PRECAUTIONS WHEN...

Page 17: ...TOOLS 2 36 PRECAUTIONS FOR CHECK AND MAINTENANCE 2 36 TURN BATTERY DISCONNECT SWITCH TO OFF POSITION 2 36 PRECAUTIONS FOR WELDING 2 37 HANDLE BATTERY 2 37 PRECAUTIONS WHEN USING HAMMER 2 38 PRECAUTIO...

Page 18: ...ly When cleaning the safety labels do not use organic solvents or gasoline These may cause the labels to peel off If the safety labels are damaged lost or cannot be read properly replace them with new...

Page 19: ...LOCATION OF SAFETY LABELS SAFETY SAFETY LABELS 2 5...

Page 20: ...ngth fender 13 Caution while engine is running 14 Caution for nearing machine 15 Prohibition of entering beneath work equipment 16 Caution for modification of ROPS FOPS 17 Prohibition of start by shor...

Page 21: ...CONTENTS OF SAFETY LABELS Caution before operating 09651 03001 Caution when leaving the operator s seat 09654 83001 SAFETY SAFETY LABELS 2 7...

Page 22: ...Caution when traveling in reverse 09802 33000 Caution for electric cables 09801 13002 Prohibition of trespassing 09162 23000 SAFETY LABELS SAFETY 2 8...

Page 23: ...cable 09808 03001 Caution for explosion 09659 53000 Improper use of jumper cables and battery cables can cause an explosion resulting in serious injuly or death Follow instructions in manual when usin...

Page 24: ...ohibition of getting on or off fender Machines equipped with rear full length fender 09805 03000 Caution while engine is running 09667 03001 Caution for nearing machine 09812 13001 Stay clear 09812 13...

Page 25: ...cation of ROPS FOPS 09620 A2001 09620 A2171 Prohibition of start by short circuiting 09842 A0481 Caution for cleaning cooler core 418 93 43341 Sign indicates a crush hazard from falling off of working...

Page 26: ...Emergency escape 425 93 51110 Caution when closing emergency escape right window 421 926 4990 Caution for high temperature turbocharger 09817 A0753 SAFETY LABELS SAFETY 2 12...

Page 27: ...nd use in well ventilated area Extremely flammable gas hydrogen Explosion Fire Blast or Projectile hazard Do not handle or charge until all safely precautions instructions have been read and understoo...

Page 28: ...Caution when traveling in reverse Machine with rearview camera 09833 33000 Caution for handling DEF 09632 31800 SAFETY LABELS SAFETY 2 14...

Page 29: ...TION PRECAUTIONS FOR SAFETY RELATED EQUIPMENT Be sure that all guards covers cameras and mirrors are in their proper position Repair them immediately if they are damaged Understand the using method of...

Page 30: ...ay cause fire Do not use a cellular phone when driving or operating the machine This may lead to mistakes in operation and may cause serious personal injury or death Never bring any dangerous objects...

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