Komatsu WB70A-1 Backhoe Loader Workshop Repair Service Manual PDF - MMKMTSWB70A.zip
A full workshop service and repair guide, complete with Electrical Wiring Diagrams, for the Komatsu WB70A Backhoe-Loader — packed with everything needed to maintain, troubleshoot, fix, and rebuild the machine the way trained technicians do.
Inside the Komatsu WB70A 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.
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PRODUCT DETAILS:
Total Pages: 1,521 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
WEAM005801 - Backhoe-Loader WB70A-1 Operation & Maintenance Manual...1
CONTENTS...3
PREMESSA.pdf...0
FOREWORD...11
SAFETY INFORMATION...12
INTRODUCTION...14
PERMISSIBLE USES...14
IMPROPER OR NON PERMISSIBLE USES...14
MAIN CHARACTERISTICS...15
RUNNING-IN THE MACHINE...15
SUMMARY OF PICTOGRAMS...16
DANGER WORK AREA...16
DO NOT OPEN THE ENGINE HOOD...16
DANGER ARTICULATED AREA...16
CONSULT THE MANUAL...16
FILL WITH HYDRAULIC OIL...17
FILL WITH FUEL...17
MOTOR LUBRICATION OIL FILTER...17
FUEL FILTER...17
AIR ASPIRATION MOTOR FILTER...17
MOTOR COOLING...17
MOTOR REFRIGERATION PRESSURE...18
MOTOR COOLANT LEVEL...18
HYDRAULIC OIL LEVEL...18
HYDRAULIC OIL FILTER...18
ELECTRIC SOCKET...18
ANCHOR POINT...18
EMERGENCY EXIT...19
BLOCKAGE OF BOOM...19
BLOCKAGE OF ROTATION...19
BRAKE OIL...19
DO NOT LIFT MORE THAN 1000 kg IN WEIGHT...19
POSITION OF THE IDENTIFICATION TAGS OF THE MACHINE COMPONENTS...20
MACHINE REGISTRATION NUMBER...20
BACKHOE IDENTIFICATION NUMBER...20
CAB NUMBER...20
FORWARD AXLE NUMBER...20
ENGINE NUMBER...21
REAR AXLE NUMBER...21
IDENTIFICATION NUMBERS AND AGENTS NAME AND ADDRESS...22
MACHINE IDENTIFICATION PLATE AND PRODUCT IDENTIFICATION NUMBER (PIN)...23
SAFETY MEASURES INVOLVING MOVEMENT OF THE MACHINE...24
SICUREZ_.pdf...0
1. SAFETY MEASURES...26
1.1 GENERAL PRECAUTIONS...26
1.2 SAFETY DEVICES...26
1.3 PERSONAL PROTECTIVE CLOTHING AND EQUIPMENT...26
1.4 UNAUTHORISED MODIFICATIONS...27
1.5 WHEN LEAVING THE DRIVING SEAT...27
1.6 ENTERING AND LEAVING THE MACHINE...28
1.7 CHECKING THE REAR-VIEW MIRRORS...28
1.8 PREVENTION OF FIRE FROM FUEL AND OIL...29
1.9 PREVENTION OF BURNS OR SCALDING...29
1.10 PREVENTION OF ASBESTOS DUST CONTAMINATION...30
1.11 PREVENTION OF INJURY CAUSED BY WORKING EQUIPMENT...30
1.12 FIRE EXTINGUISHERS AND FIRST AID...31
1.13 PRECAUTIONS AS REGARDS CAB STRUCTURE...31
1.14 PRECAUTIONS AS REGARDS EQUIPMENT...31
PRECAUZ_.pdf...0
2. PRECAUTIONS TO BE TAKEN BEFORE STARTING UP THE ENGINE...34
2.1 ON-SITE SAFETY...34
2.2 FIRE PREVENTION...34
2.3 PRECAUTIONS AS REGARDS THE OPERATOR'S CAB...34
2.4 VENTILATION OF ENCLOSED AREAS...35
2.5 CLEANING WINDOWS, MIRRORS AND HEADLIGHTS CHECKING WINDSCREEN-WIPER BLADES, LAMPS...35
3. PRECAUTIONS TO BE TAKEN WHILE WORKING...36
3.1 WHEN STARTING UP THE ENGINE...36
3.2 REGULATIONS GOVERNING ROAD TRAVEL...36
3.3 CHECKS BEFORE MOVING THE MACHINE IN REVERSE GEAR...37
3.4 MACHINE MOVEMENT...37
3.5 WORKING ON SLOPES...38
3.6 PREVENTION OF ELECTROCUTION...39
Voltage in the cables...39
Minimum distance to be kept...39
1.0 kV (supply lines)...39
5 m...39
6.6 kV (2÷3 insulators)...39
5.2 m...39
33 kV (min. 3 insulators)...39
5.5 m...39
66 kV (min. 6 insulators)...39
6 m...39
154 kV (min. 10 insulators)...39
8 m...39
275 kV (min. 19 insulators)...39
10 m...39
3.7 VISIBILITY...40
3.8 WORKING ON FROZEN OR SNOW-COVERED GROUND...40
3.9 PREVENTION OF DAMAGE CAUSED BY MACHINE EQUIPMENT...40
3.10 WORKING ON LOOSE OR PLOUGHED SOIL...40
3.11 PARKING THE MACHINE...41
4. TRANSPORTING THE MACHINE ON ANOTHER VEHICLE...42
4.1 LOADING AND UNLOADING...42
4.2 TRANSPORT...42
5. BATTERY...43
5.1 PREVENTION OF RISKS DERIVING FROM THE BATTERY...43
5.2 STARTING THE ENGINE WITH AUXILIARY CABLES...43
6. PRECAUTIONS TO BE TAKEN WHEN TOWING THE MACHINE...44
7. PRECAUTIONS TO BE TAKEN DURING MAINTENANCE...45
7.1 WARNING NOTICES...45
7.2 TOOLS...45
7.3 PERSONNEL...45
7.4 EQUIPMENT...46
7.5 WORKING UNDER THE MACHINE...46
7.6 KEEPING THE MACHINE CLEAN...46
7.7 RUNNING THE ENGINE DURING MAINTENANCE...46
7.8 RULES TO BE FOLLOWED DURING FUEL OR OIL TOPPING UP...47
7.9 LEVEL OF COOLANT IN RADIATOR...47
7.10 USE OF LAMPS...47
7.11 PRECAUTIONS TO BE TAKEN WHEN USING THE BATTERY AND THE ALTERNATOR...48
7.12 PRECAUTIONS CONCERNING THE STARTER...48
7.13 HANDLING THE HIGH-PRESSURE TUBES...49
7.14 PRECAUTIONS TO BE TAKEN AT HIGH PRESSURE...49
7.15 PRECAUTIONS TO BE TAKEN WHEN CARRYING OUT MAINTENANCE WORK AT HIGH TEMPERATURES AND HIGH PRE...49
7.16 COOLING BELTS AND FAN...50
7.17 WASTE MATERIALS...50
7.18 PRECAUTIONS TO BE TAKEN WHEN INFLATING THE TIRES...50
8. SAFETY, NOISE AND VIBRATION NOTICES...51
8.1 LOCATION OF SAFETY NOTICES...51
8.2 POSITION OF NOISE NOTICES...53
NOISE OUTSIDE THE CAB...54
NOISE INSIDE THE CAB...54
8.3 VIBRATIONS TO WHICH THE USER IS SUBJECTED...54
DATI.pdf...0
9. TECHNICAL DATA...56
9.1 DIMENSIONS WITH BACKHOE CENTERED...56
9.2 DIMENSIONS WITH BACKHOE FOLDED...56
9.3 DIMENSIONS WITH COUNTERWEIGHT...57
9.4 TECHNICAL DATA...58
MASS...58
CHARACTERISTICS OF STANDARD BUCKETS...58
ENGINE...58
ELECTRICAL SYSTEM...58
ROAD SPEED...58
TIRES...58
9.5 LIFTING CAPACITY (STANDARD BOOM)...59
9.6 LIFTING CAPACITY (BOOM WITH TRANSPORTABLE DEVICE)...60
DESCRI_1.pdf...0
10. SAFETY DEVICES...62
10.1 SAFETY DEVICES FOR THE LOADING SHOVEL...62
10.2 SAFETY DEVICES FOR THE BACKHOE...64
11. GENERAL VIEWS...65
11.1 GENERAL FRONT VIEW...65
11.2 GENERAL VIEW OF BACKHOE FROM THE SIDE...66
11.3 GENERAL VIEW OF THE INSIDE OF THE CAB...67
12. INSTRUMENTATION AND CONTROLS...68
12.1 INSTRUMENTS, WARNING LIGHTS AND PUSH-BUTTONS...68
12.2 MACHINE CONTROLS...84
POSITION OF GEAR LEVER...86
REDUCTION GEAR SPEED...86
EFFECTIVE SPEED (km/h)...86
CORRESPONDING GEAR...86
KOMATSU SYSTEM CONTROLS...94
LEVER 13 (BASIC MANEUVERS)...94
LEVER 14 (BASIC MANEUVERS)...94
LEVER 13 (COMBINED MANEUVERS)...94
LEVER 14 (COMBINED MANEUVERS)...94
CONTROLS CONFORMING TO ISO NORMS...95
LEVER 13 (BASIC MANEUVERS)...95
LEVER 14 (BASIC MANEUVERS)...95
LEVER 13 (COMBINED MANEUVERS)...95
LEVER 14 (COMBINED MANEUVERS)...95
13. FUSES AND RELAYS...97
13.1 FUSES...97
POS...98
COLOUR...98
RATING (A)...98
CIRCUIT PROTECTED...98
POS...99
COLOUR...99
RANGE (A)...99
CIRCUIT PROTECTED...99
13.2 RELAYS...100
POS...101
FUNCTION...101
POS...102
FUNCTION...102
POS...102
FUNCTION...102
14. CAB AND DRIVING SEAT...103
14.1 DESCRIPTION...103
14.2 VENTILATION AND HEATING...105
14.3 DRIVING SEAT...106
14.4 SAFETY BELT...108
14.5 FIRE EXTINGUISHER...108
14.6 FIRST AID KIT...108
14.7 TECHNICAL DOCUMENTATION...108
14.8 ACCESS TO THE ENGINE BAY FOR CONTROLS AND MAINTENANCE...109
USO.pdf...0
15. MACHINE OPERATION...111
15.1 CHECKS TO BE MADE BEFORE STARTING THE ENGINE...111
15.2 STARTING THE ENGINE...113
15.3 WARMING UP THE ENGINE...114
15.4 WARMING UP THE HYDRAULIC OIL...114
15.5 SETTING THE MACHINE IN MOTION...115
16. PARKING THE MACHINE...118
16.1 PARKING ON LEVEL GROUND...118
16.2 PARKING ON A SLOPE...119
17. STOPPING THE ENGINE...121
18. TRANSPORTING THE MACHINE ON ANOTHER VEHICLE...122
18.1 LOADING AND UNLOADING...122
18.2 TRANSPORT...123
19. PRECAUTIONS TO BE TAKEN DURING COLD WEATHER...124
19.1 FUEL AND LUBRICANTS...124
19.2 COOLANT LIQUID...124
19.3 THE BATTERY...125
RATE OF CHARGE...125
TEMPERATURE FLUID...125
20°C...125
0°C...125
-10°C...125
-20°C...125
100%...125
1.28...125
1.29...125
1.30...125
1.31...125
90%...125
1.26...125
1.27...125
1.28...125
1.29...125
80%...125
1.24...125
1.25...125
1.26...125
1.27...125
75%...125
1.23...125
1.24...125
1.25...125
1.26...125
19.4 OTHER PRECAUTIONS...125
19.5 PRECAUTIONS TO BE TAKEN ON COMPLETION OF WORK...125
20. PRECAUTIONS TO BE TAKEN DURING HOT WEATHER...126
21. USING THE MACHINE AS A LOADING SHOVEL...127
21.1 SHOVEL POSITION INDICATOR...127
21.2 ORGANISATION OF THE WORKING AREA...127
21.3 CHANGING THE FRONT BUCKET...129
22. USING THE MACHINE TO DIG...130
22.1 POSITIONING THE BUCKET IN FUNCTION OF THE JOB TO BE DONE...130
22.2 POSITIONING THE MACHINE FOR DIGGING...131
22.3 SIDEWAYS MOVEMENT OF THE EXCAVATOR GROUP...132
22.4 DIGGING METHOD...133
22.5 CHANGING THE BACKHOE BUCKET...134
22.6 REMOVING THE BACKHOE AND THE COUNTERWEIGHT FROM THE MACHINE...135
22.7 INSTALLING THE COUNTERWEIGHT...139
23. FAULT IDENTIFICATION...141
23.1 IF THE FUEL TANK IS EMPTY...141
23.2 IF THE BATTERY IS FLAT...141
23.3 OTHER FAULTS...143
MANUT_1.pdf...0
24. MAINTENANCE GUIDE...148
25. MAINTENANCE NOTES...150
25.1 MAINTENANCE NOTES ON THE ENGINE...150
Minimum Environmental Temperature (°C)...151
-5...151
-10...151
-15...151
-20...151
-25...151
-30...151
Amount of anti-freeze (l)...151
3.5...151
3.8...151
5.4...151
6.3...151
6.9...151
7.5...151
Amount of water (l)...151
11.5...151
11.2...151
9.6...151
8.7...151
8.1...151
7.5...151
25.2 MAINTENANCE NOTES ON THE HYDRAULIC CIRCUIT...151
25.3 MAINTENANCE NOTES ON THE ELECTRICAL SYSTEM...152
25.4 MAINTENANCE NOTES REGARDING LUBRICATION...152