Komatsu WB140-2, WB150-2 Backhoe Loaders Operation & Maintenance Manual
234 pages · Publication WEAM000902
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What's inside
From the manual's own table of contents: 56 sections, 282 entries. See sample pages (PDF, 463 KB)
FOREWORD
INFORMATION ON SAFETY
INTRODUCTION
INTENDED USES
IMPROPER OR UNAUTHORIZED USES
MAIN CHARACTERISTICS
RUNNING-IN
PRODUCT IDENTIFICATION
MACHINE SERIAL NUMBER
MACHINE IDENTIFICATION PLATE
ENGINE SERIAL NUMBER AND EMISSION LABEL
FRONT AXLE SERIAL NUMBER
REAR AXLE SERIAL NUMBER
TRANSMISSION SERIAL NUMBER
CAB SERIAL NUMBER
CANOPY SERIAL NUMBER
SERIAL NUMBERS AND DEALER’S ADDRESS
GENERAL PRECAUTIONS14 topics
- • GENERAL SAFETY RULES
- • SAFETY DEVICES AND GUARDS
- • CLOTHING AND PERSONAL PROTECTION ITEMS
- • UNAUTHORIZED MODIFICATIONS
- • LEAVING THE OPERATOR’S SEAT
- • GETTING ON AND OFF THE MACHINE
- • CHECKING THE REAR-VIEW MIRROR
- • PREVENTING FIRES DUE TO FUEL AND OIL
- • PREVENTING BURNS
- • PREVENTING DAMAGE DUE TO ASBESTOS POWDER
- • PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT
- • FIRE EXTINGUISHERS AND FIRST AID KIT
- • PRECAUTIONS CONCERNING THE CAB STRUCTURE
- • PRECAUTIONS CONCERNING THE EQUIPMENT
PRECAUTIONS TO BE TAKEN BEFORE STARTING THE ENGINE5 topics
- • SAFETY ON THE WORK SITE
- • FIRE PREVENTION
- • PRECAUTIONS TO BE TAKEN FOR THE OPERATOR’S CAB
- • ROOM VENTILATION
- WIPER BLADES AND THE BULBS
PRECAUTIONS TO BE TAKEN WHEN WORKING10 topics
- • STARTING THE ENGINE
- • RULES FOR ROAD TRAVEL
- • CHECKS FOR TRAVELING IN REVERSE
- • MOVING THE MACHINE
- • WORKING ON SLOPES
- • PREVENTING ELECTROCUTION
- • VISIBILITY
- • WORKING ON ICY OR SNOW-COVERED SURFACES
- • WORKING ON LOOSE GROUND
- • PARKING THE MACHINE
TRANSPORTING THE MACHINE ON OTHER VEHICLES2 topics
- • LOADING AND UNLOADING
- • THE ROUTE
THE BATTERY2 topics
- • SAFETY PRECAUTIONS FOR WORK ON BATTERIES
- • STARTING THE ENGINE WITH JUMP LEADS
PRECAUTIONS FOR EMERGENCY RECOVERY
PRECAUTIONS TO BE TAKEN DURING MAINTENANCE19 topics
- • WARNING PLATES
- • TOOLS
- • PERSONAL PRECAUTIONS
- • EQUIPMENT
- • WORKING UNDER THE MACHINE
- • KEEPING THE MACHINE CLEAN
- • RUNNING THE ENGINE DURING MAINTENANCE
- • RULES FOR REFUELING AND ADDING OIL
- • LEVEL OF COOLANT IN THE RADIATOR
- • USING LAMPS
- • BATTERY AND ALTERNATOR PRECAUTIONS
- • PRECAUTIONS CONCERNING THE STARTER
- • PRECAUTIONS REGARDING HIGH PRESSURE HOSES
- • PRECAUTIONS TO BE TAKEN WHEN WORKING ON HIGH PRESSURE SYSTEMS
- AND PRESSURES
- • THE RADIATOR COOLING FAN AND FAN BELT
- • WASTE MATERIALS
- • PRECAUTIONS FOR INFLATING TIRES
- • PRECAUTIONS FOR THE INSTALLATION OF THE EXHAUST SYSTEM TAILPIPE
Show all 56 sections
SAFETY PLATES4 topics
- • POSITION OF THE SAFETY PLATES
- • POSITION OF THE PICTOGRAMS
- • PICTOGRAMS AND RELEVANT MEANINGS
- • VIBRATIONS TO WHICH THE OPERATOR IS SUBJECTED
TECHNICAL DATA8 topics
- • STANDARD OVERALL DIMENSIONS
- • TECHNICAL CHARACTERISTICS WB140-2 (ASPIRATED ENGINE)
- • TECHNICAL CHARACTERISTICS WB140-2 (TURBOCHARGED ENGINE)
- • TECHNICAL CHARACTERISTICS WB150-2
- • LIFTING CAPACITIES
- • • SYMBOL TABLE
- • • LIFTING CAPACITY WB140-2
- • • LIFTING CAPACITY WB150-2
SAFETY LOCKS2 topics
- • FRONT LOADER LOCK
- • BACKHOE LOCKS
GENERAL VIEWS3 topics
- • FRONT GENERAL VIEW
- • BACKHOE GENERAL VIEW
- • CAB INSIDE GENERAL VIEW
INSTRUMENTS AND CONTROLS6 topics
- • FRONT INSTRUMENTS
- • SIDE INSTRUMENTS
- • PUSH BUTTONS ON THE FRONT LOADER CONTROL LEVER
- • PUSH BUTTON ON THE GEARSHIFT LEVER
- • ELECTRICAL ACCESSORIES
- • MACHINE CONTROLS
FUSES AND RELAYS2 topics
- • EQUIPMENT FUSES AND RELAYS
- • ENGINE FUSES AND RELAYS
GUARDS, CAB AND DRIVER’S SEAT9 topics
- • ENGINE HOOD
- • CANOPY
- • VENTILATION AND HEATING
- • SEAT
- • SAFETY BELT
- • FIRE EXTINGUISHER
- • FIRST AID KIT
- • TECHNICAL DOCUMENTATION
- • ADDITIONAL TOOL CASE (if provided)
USE OF THE MACHINE13 topics
- • CHECKS BEFORE STARTING THE ENGINE
- • • VISUAL CHECKS
- • • DAILY CHECKS
- • • OPERATIONAL CHECKS
- • • STARTING WITH COLD ENGINE OR IN COLD CLIMATES (UP TO -16°C (3°F))
- • • STARTING THE ENGINE IN VERY COLD AREAS (UP TO -30°C (-22°F))
- • WARMING THE ENGINE
- • HEATING THE HYDRAULIC OIL
- • HOW TO MOVE THE MACHINE
- • • LOCKING THE DIFFERENTIAL
- • • ENGAGING THE FOUR-WHEEL DRIVE
- • • WORKING ON SLOPES
- • • MAXIMUM IMMERSION DEPTH
PARKING THE MACHINE2 topics
- • PARKING ON LEVEL GROUND
- • PARKING ON SLOPES
STOPPING THE ENGINE
TRANSPORTING THE MACHINE ON OTHER VEHICLES2 topics
- • LOADING AND UNLOADING THE MACHINE
- • TRANSPORT
PRECAUTIONS TO BE TAKEN IN THE COLD SEASON5 topics
- • FUEL AND LUBRICANTS
- • COOLANT
- • BATTERY
- • OTHER PRECAUTIONS
- • PRECAUTIONS TO BE TAKEN AT THE END OF WORK
PRECAUTIONS TO BE TAKEN IN THE WARM SEASON
USING THE MACHINE AS A LOADER5 topics
- • BUCKET POSITION INDICATOR
- • ORGANIZING THE WORK AREA
- • • LOADING HEAPED AND LEVEL MATERIAL
- • • LOADING OPERATIONS ON SLOPES
- • CHANGING THE STANDARD FRONT BUCKET
USING THE MACHINE AS AN EXCAVATOR4 topics
- CARRIED OUT
- • POSITIONING THE MACHINE FOR DIGGING OPERATIONS
- • DIGGING METHOD
- • CHANGING THE BACKHOE BUCKET
TROUBLESHOOTING9 topics
- • IF THE FUEL HAS BEEN COMPLETLY DEPLETED
- • IF THE BATTERY IS DEPLETED
- • • STARTING WITH BOOSTER CABLES
- • OTHER TROUBLES
- • • ELECTRICAL CIRCUIT
- • • HYDRAULIC SYSTEM
- • • BRAKING SYSTEM
- • • TORQUE CONVERTER SYSTEM
- • • ENGINE
GUIDE TO MAINTENANCE
MAINTENANCE NOTES7 topics
- • NOTES REGARDING THE ENGINE
- • • ENGINE OIL
- • • COOLANT
- • NOTES REGARDING THE HYDRAULIC SYSTEM
- • NOTES REGARDING THE ELECTRICAL SYSTEM
- • NOTES REGARDING LUBRICATION
- • PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING
FUEL, COOLANT AND LUBRICANTS4 topics
- • LUBRICATION DIAGRAM
- • LUBRICATION DIAGRAM (multipurpose bucket and pallet forks)
- • LUBRICATION DIAGRAM (front bucket rapid couplings)
- • LUBRICATION DIAGRAM (Telescopic arm)
NUT AND BOLT TIGHTENING TORQUES2 topics
- • STANDARD TIGHTENING TORQUES
- • SPECIFIC TIGHTENING TORQUES
MAINTENANCE PLAN52 topics
- • CHECK BEFORE STARTING
- 28.1.a • • VARIOUS CHECKS
- 28.1.b • • CHECKING THE FUEL LEVEL
- 28.1.c • • CHECKING THE COOLANT LEVEL
- 28.1.d • • CHECKING THE ENGINE OIL LEVEL
- 28.1.e • • CHECKING THE HYDRAULIC CIRCUIT OIL LEVEL
- 28.1.f • • LUBRICATING THE JOINTS
- • MAINTENANCE EVERY 50 HOURS OF OPERATION
- 28.2.a • • CHECKING THE RADIATOR FLUID LEVEL
- 28.2.b • • CHECKING THE BRAKING SYSTEM OIL LEVEL
- 28.2.c • • LUBRICATING THE PROPELLER SHAFTS
- 28.2.d • • LUBRICATING THE FRONT AXLE JOINTS CENTRAL COUPLING
- 28.2.e • • DRAINING THE WATER SEPARATOR
- 28.2.f • • CHECKING THE TIRE PRESSURE
- 28.2.g • • CHECKING THE ELECTRICAL SYSTEM
- • MAINTENANCE AFTER THE FIRST 250 HOURS OF OPERATION
- • MAINTENANCE EVERY 250 HOURS OF OPERATION
- 28.4.a • • ADJUSTING THE FAN BELT TENSION
- 28.4.b • • CLEANING THE OUTSIDE OF THE RADIATORS
- 28.4.c • • CHECKING THE BATTERY ELECTROLYTE LEVEL
- 28.4.d • • CHECKING THE FRONT AXLE OIL LEVELS
- 28.4.e • • CHECKING THE REAR AXLE OIL LEVELS
- 28.4.f • • CHECKING THE HYDRAULIC TRANSMISSION OIL LEVEL
- 28.4.g • • CHECKING THE WHEEL NUT DRIVING TORQUE
- • MAINTENANCE EVERY 500 HOURS OF OPERATION
- 28.5.a • • CHANGING THE ENGINE OIL
- 28.5.b • • CHANGING THE ENGINE OIL FILTER
- 28.5.c • • CHANGING THE HYDRAULIC SYSTEM OIL FILTER
- 28.5.d • • CHANGING THE FUEL FILTER
- 28.5.e • • DRAINING THE FUEL TANK
- • MAINTENANCE EVERY 1000 HOURS OF OPERATION
- 28.6.a • • CHANGING THE FRONT AXLE OIL
- 28.6.b • • CHANGING THE REAR AXLE OIL
- 28.6.c • • CHANGING THE HYDRAULIC TRANSMISSION OIL
- 28.6.d • • CHANGING THE HYDRAULIC TRANSMISSION FILTER
- 28.6.e • • CHECKING AND ADJUSTING THE ENGINE VALVE CLEARANCE
- • MAINTENANCE EVERY 2000 HOURS OF OPERATION
- 28.7.a • • CHANGING THE HYDRAULIC SYSTEM OIL AND CLEANING THE SUCTION FILTER
- 28.7.b • • CHANGING THE COOLANT
- 28.7.c • • CHANGING THE BRAKING SYSTEM OIL
- 28.7.d • • CHECKING THE ALTERNATOR AND THE STARTER
- • WHEN REQUIRED
- 28.8.a • • CHECKING, CLEANING OR CHANGING THE AIR CLEANER CARTRIDGE
- 28.8.b • • CHECKING AND CLEANING THE CAB AIR FILTER
- 28.8.c • • BLEEDING THE BRAKING CIRCUIT
- 28.8.d • • WASHING THE COOLING CIRCUIT
- 28.8.e • • CLEANING THE WATER SEPARATOR
- 28.8.f • • CHECKING AND ADJUSTING THE FRONT WHEEL TOE-IN
- 28.8.g • • CHECKING AND ADJUSTING THE PARKING BRAKE
- 28.8.h • • CHECKING THE BRAKING EFFICIENCY
- 28.8.j • • CHECKING AND ADJUSTING THE BRAKE PEDAL STROKE
- DIGGING POSITION
LONG PERIODS OF INACTIVITY2 topics
- • BEFORE THE PERIOD OF INACTIVITY
- • AFTER THE PERIOD OF INACTIVITY
AUTHORIZED OPTIONAL EQUIPMENT3 topics
- • PRECAUTIONS REGARDING SAFETY
- • CHARACTERISTICS OF THE OPTIONAL EQUIPMENT FOR MODEL WB140-2
- • CHARACTERISTICS OF THE OPTIONAL EQUIPMENT FOR MODEL WB150-2
FRONT EQUIPMENT RAPID COUPLING DEVICES3 topics
- • MANUAL CONTROL RAPID COUPLING
- • HYDRAULIC CONTROL RAPID COUPLING FOR STANDARD BUCKET
- AND OPTIONAL EQUIPMENT WITH UNIDIRECTIONAL OIL FLOW
MULTIPURPOSE BUCKET5 topics
- • DESCRIPTION AND CONTROLS
- • SAFETY DEVICES
- • INSTALLING THE MULTIPURPOSE BUCKET
- • USING THE MULTIPURPOSE BUCKET
- • MAINTENANCE
PALLET FORKS6 topics
- • DESCRIPTION
- • USING THE FORKS
- • • PREPARING THE PALLET FORKS FOR USE
- • • OVERTURNING THE FORKS FOR TRAVEL ON ROADS
- • REMOVING THE FORKS
- • INSTALLING THE FORKS
BACKHOE TELESCOPIC ARM3 topics
- • DESCRIPTION AND CONTROL
- • USING THE TELESCOPIC ARM
- • • ADJUSTING THE GUIDE SLACK
ARRANGEMENT FOR THE INSTALLATION OF THE DEMOLITION HAMMER6 topics
- • USE OF THE DEMOLITION HAMMER AND RULES TO BE OBSERVED
- • INSTALLING AND REMOVING THE DEMOLITION HAMMER
- • • INSTALLING THE HAMMER
- • • REMOVING THE HAMMER
- UNIDIRECTIONAL OIL FLOW
- • INSTALLING AND CONNECTING THE EQUIPMENT
ARRANGEMENT FOR THE INSTALLATION OF THE CLAMSHELL BUCKET2 topics
- • INSTALLING THE CLAMSHELL BUCKET
- • USING THE CLAMSHELL BUCKET
ARRANGEMENT FOR THE INSTALLATION OF THE MANUAL HYDRAULIC HAMMER4 topics
- • CONNECTING AND REMOVING THE HAMMER
- • • CONNECTING THE HAMMER
- • • REMOVING THE CONNECTIONS
- • USING THE HAMMER
LOAD STABILIZER SYSTEM (LSS) (Optional)1 topic
- • ACCUMULATOR OF THE LOAD STABILIZER SYSTEM (LSS)
AIR CONDITIONER (Optional)
Inside this manual
Real pages from this operation & maintenance manual (234 pages). Open the sample pages (PDF, 462 KB)
- Specifications, page 75: TECHNICAL DATA
- Controls and operation, page 93: INSTRUMENTS AND CONTROLS
- Maintenance, page 180: MAINTENANCE PLAN
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the WB140-2, WB150-2 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
This manual: Operation & Maintenance Manual WEAM000902$69.51
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This is an operator's manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
This manual
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 234 pages
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