Komatsu WA70M-8E0, WA80M-8E0, WA100M-8E0 Wheel Loader Operation and Maintenance Manual (VENAM09001)
These Komatsu WA70M-, WA80M-, and WA100M- loaders spend their days shuttling material in tight yards, construction sites, and municipal work, often starting and stopping all day in dust and mud. This Operation and Maintenance Manual is what I’d keep in the cab or shop to set a solid service rhythm, so the machine stays predictable and doesn’t surprise you mid-shift. When, for example, the loader starts feeling sluggish on travel or the boom response changes, this book helps you walk through the basic checks in a logical order before you ever call in major repairs.
Applications & Use Cases
- Plan routine services so filters, belts, and key wear items are inspected and replaced before they sideline the machine.
- Trace early warning signs like odd noises, slow hydraulics, or warning lights and decide if you can finish the shift or need to stop.
- Verify daily and weekly checks for operators, keeping pin joints, tires, and fluids under control in tough site conditions.
- Align maintenance with workload, adjusting check frequency when the loader runs in extreme dust, cold, or long transport runs.
- Minimize downtime by using the manual as a quick reference when the machine returns to the yard, so nothing gets missed.
FAQ
Q: Can I use this manual on a tablet in the cab?
A: Yes, it’s practical to keep a digital copy on a tablet or laptop, so operators can zoom diagrams and search terms on the spot.
Q: Is it worth printing sections of this manual?
A: Many shops print the key service and inspection pages, laminate them, and hang them near the workbench for quick, dirty-hands reference.
Safety Note
Always follow the manual’s safety instructions and lockout procedures before inspecting, adjusting, or servicing any part of the loader.
📘 Show Index
Komatsu WA70M-8E0, WA80M-8E0, WA100M-8E0 Wheel Loader Index:
- 1. FOREWORD
- 1.1 READ THIS MANUAL
- 1.2 KOMATSU MACHINE OPERATOR PRIVACY POLICY
- 1.3 SAFETY INFORMATION
- 1.4 NOISE EMISSION LEVELS
- 1.5 VIBRATION LEVEL
- 1.6 INTRODUCTION
- 1.6.1 INTENDED USE
- 1.6.2 BREAKING IN THE MACHINE
- 1.6.3 DIRECTIONS OF MACHINE
- 1.6.4 VISIBILITY FROM OPERATOR’S SEAT
- 1.7 ENGINE TECHNOLOGY TO CONFORM EXHAUST GAS EMISSION
- 1.7.1 ABOUT DIESEL EXHAUST FLUID (DEF)
- 1.8 PRODUCT INFORMATION
- 1.8.1 LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/ MACHINE SERIAL NO. PLATE
- 1.8.2 LOCATION OF ENGINE NUMBER PLATE
- 1.8.3 ROPS/FOPS SERIAL PLATE LOCATION
- 1.8.4 AXLE SERIAL PLATE LOCATION
- 1.8.5 OPERATOR’S SEAT PLATE LOCATION
- 1.8.6 FLUORINATED GREENHOUSE GASES
- 1.8.7 SERVICE METER LOCATION
- 1.8.8 SERIAL NUMBER AND DISTRIBUTOR
- 1.9 DECLARATION OF CONFORMITY
- 1.10 RETROFITTING BY THIRD-PARTY SUPPLIERS
- 1.11 EXPLANATION OF ACRONYMS
- 1.12 TABLE OF CONTENTS
- 2. SAFETY
- 2.1 SAFETY LABELS
- 2.1.1 POSITION OF THE SAFETY LABELS
- 2.1.2 CONTENTS OF SAFETY LABELS
- 2.2 GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE
- 2.2.1 PRECAUTIONS BEFORE STARTING OPERATION
- 2.2.2 PREPARATIONS FOR SAFE OPERATION
- 2.2.3 PRECAUTIONS TO PREVENT FIRE
- 2.2.4 PRECAUTIONS WHEN GETTING ON OR OFF MACHINE
- 2.2.5 DO NOT GET CAUGHT
- 2.2.6 PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES
- 2.2.7 UNAUTHORIZED MODIFICATION
- 2.2.8 PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS
- 2.2.9 PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING
- 2.2.10 GAS, DUST AND FLAMMABLE VAPOURS
- 2.3 PRECAUTIONS FOR OPERATION
- 2.3.1 PRECAUTIONS FOR JOBSITE
- 2.3.2 START ENGINE
- 2.3.3 PRECAUTIONS FOR OPERATION
- 2.3.4 PRECAUTIONS FOR TRANSPORTATION
- 2.3.5 TOWING AND BEING TOWED
- 2.4 PRECAUTIONS FOR MAINTENANCE
- 2.4.1 PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE
- 2.4.2 PRECAUTIONS FOR CHECK AND MAINTENANCE
- 2.4.3 TIRES
- 2.4.4 PRECAUTIONS FOR DEF (only WA100M-8E0)
- 3. OPERATION
- 3.1 GENERAL VIEW
- 3.1.1 MACHINE EQUIPMENT NAME
- 3.2 EXPLANATION OF COMPONENTS
- 3.2.1 MACHINE MONITOR EQUIPMENT NAME
- 3.2.2 OTHER EQUIPMENT NAME
- 3.2.3 EXPLANATION OF COMPONENTS
- 3.2.4 SWITCHES
- 3.2.5 CONTROL LEVERS AND PEDALS
- 3.2.6 OTHER EQUIPMENT
- 3.3 MACHINE OPERATIONS AND CONTROLS
- 3.3.1 CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE
- 3.3.2 METHOD FOR OPERATIONS AND CHECKS BEFORE STARTING ENGINE
- 3.4 METHOD FOR STARTING ENGINE
- 3.4.1 START ENGINE IN NORMAL WEATHER
- 3.4.2 START IN COLD WEATHER
- 3.4.3 TURBOCHARGER PROTECTION FUNCTION
- 3.4.4 METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE
- 3.4.5 METHOD FOR STOPPING ENGINE
- 3.4.6 METHOD FOR STARTING MACHINE AND STOPPING MACHINE
- 3.4.7 METHOD FOR STEERING MACHINE
- 3.4.8 METHOD FOR OPERATING WORK EQUIPMENT
- 3.4.9 PRECAUTIONS FOR OPERATION
- 3.4.10 RECOMMENDED APPLICATIONS
- 3.4.11 METHOD FOR PARKING MACHINE
- 3.4.12 METHOD FOR CHECKING AFTER FINISHING WORK
- 3.4.13 HANDLE TIRE
- 3.5 HANDLE AIR CONDITIONER
- SETTING THE HEATING AND VENTILATION SYSTEM
- AIR CONDITIONER
- 3.6 TRANSPORT
- 3.6.1 TRANSPORTING PROCEDURE
- 3.6.2 LOADING AND UNLOADING WITH TRAILER
- 3.6.3 METHOD FOR LIFTING MACHINE
- 3.7 OPERATION IN COLD WEATHER
- 3.7.1 COLD WEATHER OPERATION INFORMATION
- 3.7.2 PRECAUTIONS AFTER DAILY WORK COMPLETION IN COLD WEATHER
- 3.7.3 PRECAUTIONS IN COLD WEATHER
- 3.7.4 AFTER THE COLD WEATHER PERIOD
- 3.8 PRECAUTIONS FOR LONG-TERM STORAGE
- 3.8.1 PREPARATION FOR LONG-TERM STORAGE
- 3.8.2 MAINTENANCE DURING LONG-TERM STORAGE
- 3.8.3 STARTING MACHINE AFTER LONG-TERM STORAGE
- 3.9 TROUBLES AND ACTIONS
- ACTIONS WHEN RUNNING OUT OF FUEL
- CHECKING THE SERVICE BRAKE
- CHECKING THE PARKING BRAKE
- EMERGENCY STEERING PROPERTIES
- EMERGENCY LOWERING
- 3.9.1 PRECAUTIONS FOR TOWING MACHINE
- 3.9.2 PRECAUTIONS FOR DISCHARGED BATTERY
- 3.9.3 START ENGINE WITH BOOSTER CABLES
- 3.9.4 OTHER TROUBLE
- 3.9.5 IF MACHINE MONITOR SHOWS WARNING DISPLAY
- 4. MAINTENANCE
- 4.1 MAINTENANCE GUIDE
- 4.1.1 TIPPING UP THE OPERATOR’S CAB (STANDARD, WITHOUT TIPPING CYLINDER)
- 4.1.2 TIPPING DOWN THE OPERATOR’S CAB (STANDARD, WITHOUT TIPPING CYLINDER)
- 4.1.3 TIPPING UP THE OPERATOR’S CAB (OPTION, WITH TIPPING CYLINDER)
- 4.1.4 TIPPING DOWN THE OPERATOR’S CAB (OPTION, WITH TIPPING CYLINDER)
- 4.1.5 PRECAUTIONS FOR MAINTENANCE
- 4.2 OUTLINE OF MAINTENANCE
- 4.2.1 HANDLE OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC
- 4.2.2 HANDLE ELECTRICAL COMPONENTS
- 4.3 STANDARD TIGHTENING TORQUE FOR BOLTS NUTS
- 4.4 MAINTENANCE SCHEDULE
- PERIODIC MAINTENANCE FOR ENGINE
- 4.5 MAINTENANCE PROCEDURE
- 4.5.1 INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 100 HOURS)
- 4.5.2 WHEN REQUIRED
- 4.5.3 CHECKS BEFORE STARTING THE ENGINE
- 4.5.4 MAINTENANCE AFTER THE FIRST 50 SERVICE HOURS
- 4.5.5 MAINTENANCE EVERY 10 SERVICE HOURS
- 4.5.6 MAINTENANCE EVERY 50 SERVICE HOURS
- 4.5.7 MAINTENANCE EVERY 250 SERVICE HOURS
- 4.5.8 MAINTENANCE EVERY 500 SERVICE HOURS
- 4.5.9 MAINTENANCE EVERY 1000 SERVICE HOURS
- 4.5.10 MAINTENANCE EVERY 2000 SERVICE HOURS
- 4.5.11 MAINTENANCE EVERY 3000 SERVICE HOURS
- 4.5.12 MAINTENANCE EVERY 4000 HOURS MAINTENANCE
- 4.5.13 MAINTENANCE EVERY 4500 HOURS MAINTENANCE
- 4.5.14 MAINTENANCE EVERY 6000 HOURS MAINTENANCE
- 4.5.15 MAINTENANCE EVERY 8000 SERVICE HOURS
- 5. SPECIFICATIONS
- 5.1 SPECIFICATIONS
- 5.1.1 SPECIFICATIONS: WA70M-8E0
- 5.1.2 SPECIFICATIONS: WA80M-8E0
- 5.1.3 SPECIFICATIONS: WA100M-8E0
- 6. SPECIAL EQUIPMENT, ATTACHMENTS
- 6.1 3rd and 4th HYDRAULIC CIRCUIT (EPC)
- 6.1.1 ELECTRIC-PROPORTIONAL CONTROLLED 3rd HYDRAULIC CIRCUIT (EPC)
- 6.1.2 ELECTRIC-PROPORTIONAL CONTROLLED 4th HYDRAULIC CIRCUIT (EPC)
- 6.2 ADDITIONAL 3rd / 4th HYDRAULIC CONTROL CIRCUIT (REAR)
- 6.3 HIGH FLOW MODE
- 6.4 CENTRAL LUBRICATION SYSTEM
- 6.4.1 CHANGING THE LUBRICATION INTERVAL TIMES
- 6.4.2 METHOD FOR OPERATING THE CENTRAL LUBRICATION SYSTEM
- 6.4.3 DISPLAY AND OPERATING UNIT
- 6.4.4 INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 100 HOURS)
- 6.4.5 CHECKING AUTO-GREASING AND OPERATION METHOD FOR FILLING GREASE
- 6.5 ECSS
- 6.5.1 DESIGN AND FUNCTIONAL PRINCIPLE OF THE ECSS
- 6.5.2 PRECAUTIONS WHEN SWITCHING ON THE ECSS
- 6.5.3 OPERATING THE ECSS
- 6.5.4 PRECAUTIONS WHEN HANDLING THE PRESSURE ACCUMULATOR
- 6.6 BUCKET POSITION INDICATOR
- 6.7 RETURN TO DIG
- 6.7.1 SPECIFICATION
- 6.7.2 ADJUSTMENT
- 6.7.3 OPERATION
- 6.8 100% DIFFERENTIAL LOCK SWITCH
- 6.8.1 ENGAGING THE 100% DIFFERENTIAL LOCK
- 6.9 REVERSIBLE FAN
- 6.9.1 FAN REVERSAL SWITCH
- 6.9.2 FAN REVERSE ROTATION DISPLAY
- 6.10 AIR CONDITIONER
- 6.11 TOWING PIN
- 6.12 TRAILER HITCH
- 6.13 SPEED CONTROL
- 6.14 FOR ITALY ROAD HOMOLOGATION ONLY
- 7. REPLACEMENT PARTS
- 7.1 PERIODIC REPLACEMENT OF DEFINED LIFE PARTS
- 7.1.1 DEFINED LIFE PARTS LIST
- 7.2 CONSUMABLE PARTS
- 7.3 RECOMMENDED FUEL, COOLANT, AND LUBRICANT
- 7.3.1 LUBRICATION CHART
- 7.3.2 METHOD FOR USING FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
- 7.3.3 RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS
- 8. Index
- 9. Notes
Komatsu
