Komatsu WB142 WB142-5 Backhoe Loader Workshop Repair Service Manual PDF - MKMTSWB142.zip

Full workshop service and repair guide, complete with electrical wiring schematics, for the Komatsu WB142 Backhoe Loader — packed with every technical detail needed to service, troubleshoot, fix, and rebuild the machine the way professional technicians do.

Inside the Komatsu WB142 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.

CEAM018501 - Backhoe Loader WB142-5 Operation & Maintenance Manual.pdf

CEAM018502 - Backhoe Loader WB142-5 Operation & Maintenance Manual.pdf

CEBM018903 - Backhoe Loader WB142-5 Shop Manual.pdf

PRODUCT DETAILS:

Total Pages: 912 pages

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

Language: English

TABLE OF CONTENTS

CEAM018501 - Backhoe Loader WB142-5 Operation & Maintenance Manual...1

COVER...1

INTRODUCTION...3

FOREWORD...4

SAFETY INFORMATION...5

APPROVED AND NON-APPROVED USES...6

NON-APPROVED...6

PRODUCT INFORMATION...7

MAIN FEATURES...7

BREAK-IN PERIOD...7

SYNTHETIC BIODEGRADABLE OIL TYPES...7

PRODUCT IDENTIFICATION...8

MACHINE SERIAL NUMBER...8

MACHINE IDENTIFICATION PLATE...8

ENGINE SERIAL NUMBER AND EMISSION LABEL...9

FRONT AXLE SERIAL NUMBER...9

REAR AXLE SERIAL NUMBER...9

TRANSMISSION SERIAL NUMBER...10

CANOPY SERIAL NUMBER...10

SERIAL NUMBERS AND DEALER INFORMATION...11

MODEL: WB142-5...11

CONTENTS...12

SAFETY...21

SAFETY AND WARNING DECALS...22

LOCATION OF THE SAFETY DECALS...24

WORK ZONE...24

ROTATING PARTS...24

HYDRAULIC OIL...24

BLOCK WHEELS...24

BEFORE MOVING MACHINE...25

BEFORE STANDING UP FROM OPERATOR’S SEAT...25

WHILE ENGINE IS RUNNING...26

ALWAYS USE SEAT BELT...26

MACHINE OPERATION...26

IMPROPER OPERATION AND MAINTENANCE...26

DO NOT WELD ONTO ROPS...27

BOOM LOCK...27

ELECTROCUTION HAZARD...27

CRUSH HAZARD: KEEP CLEAR...28

PINCH POINT...28

INCORRECT STARTING PROCEDURES...28

BRAKE PEDAL CONNECTOR...28

4 WHEEL DRIVE...29

HYDRAULIC OIL...29

HYDRAULIC OIL LEVEL...29

HYDRAULIC OIL FILTER...29

FUEL...29

FUEL FILTER...30

ENGINE LUBRICATION OIL FILTER...30

ENGINE AIR FILTER...30

ENGINE COOLANT...30

COOLANT PRESSURE CAP...30

TRANSMISSION OIL LEVEL...31

TRANSMISSION OIL FILTER...31

POWER OUTLET...31

BOOM LOCK...31

SWING LOCK...31

ANCHORAGE POINT...32

EMERGENCY EXIT...32

BRAKE OIL...32

DO NOT LIFT WARNING...32

GENERAL SAFETY RULES AND PRECAUTIONS...33

GENERAL SAFETY RULES...33

UNAUTHORIZED MODIFICATIONS...34

GENERAL SAFETY AT JOB SITE...34

WORKING ON LOOSE GROUND...34

SAFETY FEATURES...35

PERSONAL PROTECTIVE EQUIPMENT...35

FIRE AND EXPLOSION PREVENTION...36

FIRE CAUSED BY FUEL OR OIL...36

FIRE CAUSED BY ACCUMULATION OF FLAMMABLE MATERIAL...36

FIRE FROM ELECTRICAL SYSTEM...37

FIRE FROM HYDRAULIC LINE...37

ACTION IF FIRE OCCURS...37

ASBESTOS DUST HAZARD PREVENTION...37

KEEP OPERATOR'S CAB CLEAN...37

UNAUTHORIZED MODIFICATIONS...38

LEAVING OPERATOR’S COMPARTMENT...39

MOUNTING AND DISMOUNTING...40

CRUSH OR PINCH POINT DANGERS...40

FIRE EXTINGUISHER AND FIRST AID KIT...41

INSIDE OPERATOR’S COMPARTMENT...41

PRECAUTIONS WHEN USING ROPS...42

PRECAUTIONS FOR ATTACHMENTS...42

QUICK COUPLER ATTACHMENT...42

LARGE ATTACHMENTS...42

PRECAUTIONS BEFORE STARTING OPERATIONS...43

PRE-OPERATIONAL CHECKS...43

STARTING YOUR WORK OPERATIONS...43

WORK SITE HAZARDS...43

AVOIDING DANGEROUS SITUATIONS...44

WORKING CLEARANCES...46

HIGH VOLTAGE LINES...46

RULES FOR ROAD TRAVEL...47

PRECAUTIONS WHEN TRAVELING...47

RULES FOR TRAVELING IN REVERSE...49

TRAVELING ON ICY OR SNOW-COVERED SURFACES...49

WORKING ON LOOSE OR UNSTABLE GROUND...49

TRAVEL ON SLOPES...49

PARKING THE MACHINE...51

PRECAUTIONS DURING MAINTENANCE OPERATIONS...52

WARNING TAGS...52

EQUIPMENT STORAGE...52

WORKING UNDER THE MACHINE...53

USING DROP LAMPS...53

KEEPING THE MACHINE CLEAN...53

RUNNING THE MACHINE DURING MAINTENANCE...54

RULES FOR REFUELING THE MACHINE...54

COOLING SYSTEM PRECAUTIONS...54

BATTERY PRECAUTIONS...55

STARTING THE MACHINE...55

HIGH-PRESSURE HOSES...56

HANDLING HIGH-PRESSURE HOSES...56

PRECAUTION FOR HIGH FUEL PRESSURE...56

HIGH TEMPERATURES AREAS...56

ROTATING PARTS...57

DISPOSAL OF WASTE MATERIALS...57

INFLATING TIRES...57

ACCUMULATOR...58

CRITICAL PARTS...58

TRANSPORTING THE MACHINE...59

LOADING AND SECURING THE MACHINE...59

OPERATION...61

GENERAL VIEW OF MACHINE...62

FRONT VIEW OF MACHINE...62

REAR VIEW OF MACHINE...63

DESCRIPTION OF MACHINE OPERATION CONTROLS...64

CONTROL LOCATIONS...64

FRONT INSTRUMENT BEZEL AND CONTROLS...65

LOW FUEL ALERT LAMP...65

FOUR-WHEEL DRIVE (IN/OUT) INDICATOR...66

DIFFERENTIAL (LOCK/UNLOCK) INDICATOR...66

PARKING BRAKE ALERT LAMP...66

TRANSMISSION OIL TEMPERATURE ALERT...66

LEFT DIRECTION INDICATOR LAMP...67

RIGHT DIRECTION INDICATOR LAMP...67

LOW PRESSURE OR BRAKE FLUID ALERT...67

MAIN ALARM LAMP...67

HIGH BEAM INDICATOR LAMP...68

LOW BEAM INDICATOR LAMP...68

WORK LIGHTS ALERT LAMP...68

STEERING COLUMN SWITCHES...69

DIRECTIONAL CONTROL SWITCH (STANDARD)...69

MULTIFUNCTIONAL SWITCH...69

SIDE INSTRUMENT BEZEL AND CONTROLS...70

FUEL LEVEL GAUGE...71

ENGINE COOLANT TEMPERATURE GAUGE...71

TACHOMETER AND HOUR METER...72

HYDRAULIC OIL FILTER CLOG INDICATOR...72

ALTERNATOR ALERT...72

GLOW PLUGS PREHEAT INDICATION...73

ENGINE COOLANT TEMPERATURE ALERT...73

ENGINE OIL PRESSURE ALERT...73

AIR CLEANER RESTRICTION ALERT...73

AUDIBLE WARNING SYSTEM...74

BACKHOE SPEED CONTROL BUTTON...74

BACKHOE BOOM LOCK SWITCH...74

REAR HORN...74

HAZARD FLASHERS...75

PARKING LIGHTS AND LOW BEAM SWITCH...75

FOUR-WHEEL DRIVE SWITCH...75

ROTATING BEACON LAMP...75

FRONT WORK LIGHT SWITCH...76

REAR WORK LIGHT SWITCH...76

OPTIONAL EQUIPMENT SWITCHES...76

IGNITION SWITCH...76

FRONT END LOADER CONTROLS...77

LOADER DECLUTCH CONTROL BUTTON...77

DIFFERENTIAL LOCK BUTTON...77

FRONT END LOADER SPEED CONTROL BUTTON...78

BACKHOE CONTROLS...79

GEAR SHIFT LEVER CONTROLS...80

DECLUTCH BUTTON...80

CHANGING SPEED RANGES...80

DIRECTIONAL CONTROL LEVER...80

BRAKES, PARKING BRAKE, ACCELERATOR AND THROTTLE CONTROL...81

BRAKE PEDALS...81

PARKING BRAKE...81

ACCELERATOR PEDAL...82

HAND THROTTLE...82

SEAT...83

SEAT BELT...84

DOCUMENT STORAGE...84

GUARDS...85

DRIVER’S OVERHEAD GUARD...85

ENGINE HOOD...85

ELECTRICAL...86

SWITCHES AND EXTRA ACCESSORIES...86

BATTERY DISCONNECT...86

FUSES AND RELAYS...87

FUSE AND RELAY PANEL LOCATION...87

FUSE AND RELAY PANEL LAYOUT...88

OPERATING THE MACHINE...91

CHECKING THE FUEL SUPPLY...91

STARTING THE ENGINE...91

STARTING THE ENGINE IN COLD WEATHER...92

WARMING THE MACHINE UP...93

SHUTTING THE ENGINE DOWN...93

OPERATING THE FRONT END LOADER AND BACKHOE...94

PRE-OPERATIONAL CHECKS...94

PERFORM A WALK-AROUND CHECK OF YOUR MACHINE...94

UNDER THE HOOD...95

IN THE OPERATOR’S CANOPY...95

START-UP CHECKS...95

STARTING YOUR WORK OPERATIONS...96

AVOIDING DANGEROUS SITUATIONS...96

WORKING CLEARANCES...99

OPERATING THE FRONT END LOADER...100

CONTROL LEVER POSITIONS...101

PERFORMING LOADING OPERATIONS...102

ORGANIZING YOUR WORK AREA...102

LOADING HEAPED MATERIAL...102

LOADING A TRUCK BED OR TRAILER...104

WORKING ON SLOPES WITH A LOADED BUCKET...104

CHANGING THE FRONT BUCKET...105

OPERATING THE BACKHOE...106

POSITIONING THE MACHINE...106

UNLOCKING THE BACKHOE...106

ISO BACKHOE CONTROLS...109

KOMATSU BACKHOE CONTROLS...110

DIGGING METHODS...111

CHANGING THE BACKHOE BUCKET...112

ADJUSTING THE BUCKET...112

SAFETY LOCK USAGE...113

FRONT END LOADER CYLINDER LOCK...113

BACKHOE LOCKS...114

MOVING OR TRAVELING WITH THE MACHINE...116

TRAVELING...116

TRAVELING ON SLOPES...117

TRAVELING OR WORKING IN SWAMPY OR WET AREAS...118

PARKING THE MACHINE...119

FOR SHORT OR LONG PERIODS...119

PARKING ON AN INCLINE...120

TRANSPORTING THE MACHINE...121

LOADING AND SECURING THE MACHINE...121

EMERGENCY RECOVERY...122

HOW TO MOVE THE MACHINE...122

PRECAUTIONS DURING SEASONAL CHANGES...123

COLD SEASONS...123

FUEL AND LUBRICANTS...123

COOLANT...123

BATTERY...124

WARM SEASONS...124

BASIC TROUBLESHOOTING...125

THE BATTERY...125

SERVICING THE BATTERY...125

REMOVAL AND INSTALLATION...125

STARTING THE ENGINE WITH BOOSTER CABLE...126

ELECTRICAL CIRCUITS...128

HYDRAULIC SYSTEM...128

BRAKING SYSTEM...129

TRANSMISSION...129

ENGINE...130

MAINTENANCE...131

GUIDE TO MAINTENANCE...132

MAINTENANCE NOTES...133

ENGINE...134

ENGINE OIL...134

COOLANT...134

FUEL...134

HYDRAULIC SYSTEM...135

ELECTRICAL SYSTEM...135

LUBRICATION...135

PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING...136

FUEL, COOLANT, AND LUBRICANTS...137

PROPER SELECTION ACCORDING TO THE AMBIENT TEMPERATURE...137

GREASE...138

FUEL REMARKS...138

HOMOLOGATED (HEES) SYNTHETIC LUBRICANTS...139

LUBRICATION DIAGRAMS...140

GENERAL VIEW...140

PERIODIC REPLACEMENT OF COMPONENTS...141

CRITICAL PARTS FOR SAFETY...142

FUEL SUPPLY SYSTEM...142

DELIVERY / RETURN HYDRAULIC SYSTEM...142

LOADER AND BACKHOE HYDRAULIC SYSTEM...142

OPERATOR’S SAFETY...143

STANDARD TIGHTENING TORQUE...144

STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS...144

SPECIFIC TIGHTENING TORQUES...144

MAINTENANCE SCHEDULE...144

MAINTENANCE SCHEDULE CHART...145