Komatsu WB140PSN WB150PSN WB140PS-2N WB150PS-2N Backhoe Loader Workshop Repair Service Manual PDF - MKMTSWB140PSNWB150PSN.zip

A full factory-grade service and repair guide, complete with Electrical Wiring Diagrams, covering the Komatsu Backhoe Loaders WB140PS-2N and WB150PS-2N — packed with every technical detail needed to service, troubleshoot, fix, and overhaul these machines just like expert technicians.

Inside the Komatsu WB140PS-2N and WB150PS-2N backhoe loader workshop service repair manual, you'll find:

* Numbered table of contents easy to use so that you can find the information you need fast.

* Detailed sub-steps expand on repair procedure information

* Numbered instructions guide you through every repair procedure step by step.

* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.

* Notes, cautions and warnings throughout each chapter pinpoint critical information.

* Bold figure number help you quickly match illustrations with instructions.

* Detailed illustrations, drawings and photos guide you through every procedure.

* Enlarged inset helps you identify and examine parts in detail.

CEAM009402 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf

CEAM010800 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf

CEAM012502 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf

CEAM012602 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf

CEBM011100 - Backhoe Loader WB140PS-2N, WB150PS-2N Shop Manual.pdf

CEBM012801 - Backhoe Loader WB140PS-2N, WB150PS-2N Shop Manual

PRODUCT DETAILS:

Total Pages: 1,512 pages

File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)

Language: English

TABLE OF CONTENTS

CEAM009402 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual....1

COVER....1

INTRODUCTION....5

FOREWORD....6

SAFETY INFORMATION....7

APPROVED AND NON-APPROVED USES....8

APPROVED....8

NON-APPROVED....8

PRODUCT INFORMATION....9

MAIN FEATURES....9

BREAK-IN PERIOD....9

SYNTHETIC BIODEGRADABLE OIL TYPES....9

PRODUCT IDENTIFICATION....10

MACHINE SERIAL NUMBER....10

MACHINE IDENTIFICATION PLATE....10

ENGINE SERIAL NUMBER AND EMISSION LABEL....11

FRONT AXLE SERIAL NUMBER....11

REAR AXLE SERIAL NUMBER....11

TRANSMISSION SERIAL NUMBER....12

CAB SERIAL NUMBER....12

CANOPY SERIAL NUMBER....12

SERIAL NUMBERS AND DEALER INFORMATION....13

MODEL: WB140-2N / WB150-2N....13

CONTENTS....14

SAFETY....23

GENERAL SAFETY RULES AND PRECAUTIONS....24

GENERAL SAFETY RULES....24

SAFETY FEATURES....25

PERSONAL PROTECTIVE EQUIPMENT....25

UNAUTHORIZED MODIFICATIONS....25

LEAVING OPERATOR’S COMPARTMENT....26

MOUNTING AND DISMOUNTING....27

FIRE PREVENTION FOR FUEL AND OIL....27

DUST HAZARD PRECAUTIONS....28

CRUSH OR PINCH POINT DANGERS....28

FIRE EXTINGUISHER AND FIRST AID KIT....28

INSIDE OPERATOR’S COMPARTMENT....29

PRECAUTIONS WHEN USING ROPS....29

PRECAUTIONS FOR ATTACHMENTS....29

PRECAUTIONS BEFORE STARTING WORK OPERATIONS....30

PRE-OPERATIONAL CHECKS....30

PERFORM A WALK AROUND CHECK OF YOUR MACHINE....30

UNDER THE HOOD....30

IN THE OPERATOR’S CAB....31

START-UP CHECKS....31

STARTING YOUR WORK OPERATIONS....31

WORK SITE HAZARDS....32

WORKING CLEARANCES....32

RULES FOR ROAD TRAVEL....33

RULES FOR TRAVELING IN REVERSE....34

TRAVELING ON ICY OR SNOW-COVERED SURFACES....34

WORKING ON LOOSE OR UNSTABLE GROUND....34

PRECAUTIONS DURING MAINTENANCE OPERATIONS....35

WARNING TAGS....35

EQUIPMENT STORAGE....35

WORKING UNDER THE MACHINE....36

USING DROP LAMPS....36

KEEPING THE MACHINE CLEAN....36

RUNNING THE MACHINE DURING MAINTENANCE....37

RULES FOR REFUELING THE MACHINE....37

COOLING SYSTEM PRECAUTIONS....37

BATTERY PRECAUTIONS....38

STARTING THE MACHINE....38

HIGH PRESSURE HOSES....39

HIGH TEMPERATURES AREAS....39

ROTATING PARTS....39

DISPOSAL OF WASTE MATERIALS....40

INFLATING TIRES....40

CRITICAL PARTS....40

VIBRATIONS TO WHICH THE OPERATOR IS EXPOSED....40

SAFETY AND WARNING DECALS....41

LOCATION OF THE SAFETY DECALS....41

LOCATION OF THE PICTOGRAM DECALS....55

OPERATION....57

GENERAL VIEW OF MACHINE....58

FRONT VIEW OF MACHINE....58

REAR VIEW OF MACHINE....59

PICTOGRAMS....60

WORK AREA DANGERS....60

MOVING OR ROTATING ENGINE COMPONENTS....60

FILLING THE HYDRAULIC SYSTEM....60

ENGINE OIL FILTER....60

BRAKE FLUID....60

FUEL FILTER....61

ENGINE COOLANT....61

AIR FILTER....61

ENGINE COOLANT PRESSURE WARNING....61

HYDRAULIC OIL LEVEL....61

HYDRAULIC OIL FILTER....61

TRANSMISSION OIL LEVEL....62

TRANSMISSION FLUID FILTER....62

ANCHORAGE POINT....62

EMERGENCY EXIT....62

BOOM LOCK....62

SWING LOCK....62

DESCRIPTION OF MACHINE OPERATION CONTROLS....63

INSIDE THE CAB....63

FRONT INSTRUMENT BEZEL AND CONTROLS....64

TRANSMISSION OIL TEMPERATURE ALERT....64

ENGINE COOLANT TEMPERATURE ALERT....64

FOUR-WHEEL DRIVE (IN/OUT) INDICATOR....64

LOW FUEL ALERT....64

DIRECTIONAL SIGNAL INDICATOR....65

HIGH BEAM INDICATOR....65

PARKING BRAKE AND BRAKE FLUID ALERT....65

DIFFERENTIAL (LOCK/UNLOCK) INDICATOR....65

MULTIFUNCTIONAL DIRECTIONAL SWITCH....65

FOUR-WHEEL DRIVE SWITCH....66

WINDSHIELD WIPER/WASHER SWITCH....66

FRONT WORK LAMPS SWITCH....66

EMERGENCY (HAZARD) SWITCH....66

OPTIONAL EQUIPMENT SWITCH....66

SIDE INSTRUMENT BEZEL AND CONTROLS....67

FUEL LEVEL GAUGE....67

TACHOMETER AND HOUR METER....67

ENGINE COOLANT TEMPERATURE GAUGE....68

AIR CLEANER RESTRICTION ALERT....68

ENGINE OIL PRESSURE ALERT....68

GLOW PLUGS PREHEAT INDICATION....68

ALTERNATOR ALERT....68

ENGINE COOLANT TEMPERATURE ALERT....69

OPTIONAL EQUIPMENT ALERT....69

AUDIBLE WARNING SYSTEM....69

REAR WORK LAMPS....69

WINDSHIELD WIPER/WASHER SWITCH....69

EMERGENCY FLASHING LIGHT SWITCH....69

REAR HORN....70

LOAD STABILIZER SWITCH (OPTIONAL)....70

AIR CONDITIONING SWITCH (OPTIONAL)....70

IGNITION SWITCH....70

BLOWER SWITCH....70

BACKHOE POWER CONTROL SWITCH....71

BACKHOE BOOM LOCK SWITCH....71

OPTIONAL SWITCH LOCATIONS....71

FRONT END LOADER CONTROLS....72

LOADER DECLUTCH CONTROL BUTTON....72

DIFFERENTIAL LOCK BUTTON....72

BUCKET OPEN BUTTON....73

BUCKET CLOSE BUTTON....73

FRONT END LOADER SPEED CONTROL BUTTON....73

GEAR SHIFT LEVER CONTROLS....74

DECLUTCH BUTTON....74

CHANGING SPEED RANGES....74

DIRECTIONAL CONTROL LEVER....74

BRAKES, PARKING BRAKE, ACCELERATOR AND THROTTLE CONTROL....75

BRAKE PEDALS....75

PARKING BRAKE....75

ACCELERATOR PEDAL....76

HAND THROTTLE....76

CAB ENVIRONMENT AND SAFETY EQUIPMENT....77

HEATING AND VENTILATION SYSTEM....77

AIR CONDITIONING....77

HEATING SYSTEM....77

SEAT AND SEAT BELT....78

SEAT....78

SEAT BELT....78

SAFETY EQUIPMENT AND STORAGE AREAS....79

FIRE EXTINGUISHER....79

FIRST AID KIT....79

DOCUMENT STORAGE....79

TOOL CASE....79

CAB AND GUARDS....80

CAB....80

DOORS AND WINDOWS....80

ENGINE HOOD....81

ELECTRICAL....82

SWITCHES AND EXTRA ACCESSORIES....82

OVERHEAD LAMP....82

BATTERY DISCONNECT....82

OPTIONAL ELECTRICAL SWITCH LOCATION....82

FUSES AND RELAYS....83

FUSE AND RELAY PANEL LOCATION....83

DASHBOARD RELAY LOCATION....83

FUSE AND RELAY PANEL LAY OUT....84

ENGINE FUSE AND RELAY LOCATION....85

OPERATING THE MACHINE....87

CHECKING THE FUEL SUPPLY....87

STARTING THE ENGINE....87

STARTING THE ENGINE IN COLD WEATHER....88

WARMING THE MACHINE UP....89

SHUTTING THE ENGINE DOWN....89

OPERATING THE FRONT END LOADER AND BACKHOE....90

OPERATING THE FRONT END LOADER....90

CONTROL LEVER POSITIONS....90

PERFORMING LOADING OPERATIONS....91

BUCKET POSITION INDICATOR....91

ORGANIZING YOUR WORK AREA....91

LOADING HEAPED MATERIAL....92

LOADING A TRUCK BED OR TRAILER....92

WORKING ON SLOPES WITH A LOADED BUCKET....93

CHANGING THE FRONT BUCKET....93

OPERATING THE BACKHOE....94

POSITIONING THE MACHINE....94

ADJUSTING THE DIGGING BUCKET....95

DIGGING METHODS....96

CHANGING THE BACKHOE BUCKET....97

ISO BACKHOE CONTROLS....98

KOMATSU BACKHOE CONTROLS....99

SAFETY LOCK USAGE....100

BACKHOE LOCKS....102

MOVING OR TRAVELING WITH THE MACHINE....103

TRAVELING....103

TRAVELING ON SLOPES....104

TRAVELING OR WORKING IN SWAMPY OR WET AREAS....105

PARKING THE MACHINE....106

FOR SHORT OR LONG PERIODS OF TIME....106

PARKING ON AN INCLINE....107

TRANSPORTING THE MACHINE....108

LOADING AND SECURING THE MACHINE....108

EMERGENCY RECOVERY....109

HOW TO MOVE THE MACHINE....109

PRECAUTIONS DURING SEASONAL CHANGES....110

COLD SEASONS....110

FUEL AND LUBRICANTS....110

COOLANT....110

BATTERY....110

WARM SEASONS....111

BASIC TROUBLESHOOTING....112

THE BATTERY....112

SERVICING THE BATTERY....112

REMOVAL AND INSTALLATION....112

STARTING THE ENGINE WITH BOOSTER CABLE....113

ELECTRICAL CIRCUITS....115

HYDRAULIC SYSTEM....115

BRAKING SYSTEM....116

TORQUE CONVERTER SYSTEM....116

ENGINE....117

MAINTENANCE....119

GUIDE TO MAINTENANCE....120

MAINTENANCE NOTES....121

NOTES REGARDING THE ENGINE....121

ENGINE OIL....121

COOLANT....122

FUEL....122

NOTES REGARDING THE HYDRAULIC SYSTEM....122

NOTES REGARDING THE ELECTRICAL SYSTEM....123

NOTES REGARDING LUBRICATION....123

PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING....124

FUEL, COOLANT, AND LUBRICANTS....125

PROPER SELECTION ACCORDING TO THE AMBIENT TEMPERATURE....125

GREASE....126

HOMOLOGATED (HEES) SYNTHETIC BIODEGRADABLE LUBRICANTS....129

LUBRICATION DIAGRAMS....130

GENERAL....130

MULTIPURPOSE BUCKET AND PALLET FORKS....131

FRONT BUCKET QUICK COUPLINGS....132

TELESCOPIC ARM....133

PERIODIC REPLACEMENT OF COMPONENTS CONNECTED WITH SAFETY....134

CRITICAL PARTS FOR SAFETY....135

FUEL SUPPLY SYSTEM....135

DELIVERY / RETURN HYDRAULIC SYSTEM....136

LOADER AND BACKHOE HYDRAULIC SYSTEM....137

OPERATOR’S SAFETY....138

STANDARD TIGHTENING TORQUE....139

STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS....139

SPECIFIC TIGHTENING TORQUES....139

MAINTENANCE PLAN....140

CHECKS BEFORE STARTING....144

VARIOUS CHECKS....144

CHECKING FUEL LEVEL....144

CHECKING COOLANT LEVEL....145

CHECKING ENGINE OIL LEVEL....145

CHECKING HYDRAULIC SYSTEM OIL LEVEL....146

DRAINING WATER SEPARATOR....147

MAINTENANCE EVERY 10 HOURS OF OPERATION....147

LUBRICATING JOINTS (GREASE FITTINGS)....147

JOINT LUBRICATION POINTS....148

FRONT LOADER LUBRICATION LOCATIONS....148

BACKHOE LUBRICATION LOCATIONS....149

MAINTENANCE AFTER FIRST 50 HOURS OF OPERATION....150

CHANGE HYDRAULIC OIL DRAIN FILTER (ONLY FOR MACHINES WITH SYNTHETIC BIODEGRADABLE OIL)....150

MAINTENANCE EVERY 50 HOURS OF OPERATION....150

CHECKING RADIATOR FLUID LEVEL....150

CHECKING BRAKE SYSTEM OIL LEVEL....150

LUBRICATING PROPELLER SHAFTS....151

LUBRICATING FRONT AXLE JOINTS CENTRAL COUPLING....152

CHECKING TIRE PRESSURE....152

CHECKING ELECTRICAL SYSTEM....153

MAINTENANCE AFTER THE FIRST 250 HOURS OF OPERATION....153