Komatsu WA430-6 Wheel Loader Operation and Maintenance Manual (CEAM023104)
On a WA430-6 that spends its life loading trucks, feeding crushers, or working stockpiles in dusty yards, this Operation and Maintenance Manual is what I’d keep in the cab pocket. It tells you how to run the loader without abusing it, and how to set up a steady service rhythm so it’s ready every shift. If, for example, the loader starts feeling sluggish on the pile, I’d use this manual to walk through the basic operator checks and scheduled inspections before calling in bigger repairs.
Applications & Use Cases
- Plan daily and weekly walk-arounds so you spot leaks, loose pins, or tire damage before they stop the machine mid-load.
- Set up interval-based servicing for filters, lubrication points, and adjustments to keep the drivetrain and hydraulics consistent.
- Trace early signs of overheating or slow hydraulics using the recommended inspection order to isolate simple causes.
- Verify correct startup, shutdown, and warm-up routines so operators don’t shorten component life.
- Coordinate parts and shop time ahead of major services to cut downtime during busy seasons.
FAQ
Q: Can I use this manual on a tablet in the field?
A: Yes, it’s practical to keep a digital copy on a tablet or laptop so you can zoom diagrams and search terms quickly by the machine.
Q: Is it worth printing parts of this manual?
A: Many techs print the key maintenance schedules and inspection checklists to hang in the shop or keep in a service binder.
Safety Note
Always follow the manual’s safety procedures and lockout instructions before inspecting, adjusting, or servicing the loader.
📘 Show Index
Komatsu WA430-6 Wheel Loader Index:
- INTRODUCTION
- FOREWORD
- SAFETY INFORMATION
- APPROVED AND NON-APPROVED USES
- Approved Functions
- Non-Approved Functions
- VISIBILITY STANDARD
- Visibility in Immediate Area
- 12-M Radius Visibility
- PRODUCT IDENTIFICATION
- Machine
- Service Meter Location
- Directions of Machine
- Machine Serial Number/Product Identification Number (PIN)
- Engine Serial Number, EPA Regulations
- SERIAL NUMBERS AND DISTRIBUTOR INFORMATION
- TABLE OF CONTENTS
- SAFETY
- SAFETY AND WARNING DECALS
- Location of the Safety Labels
- Safety Labels
- GENERAL SAFETY RULES AND PRECAUTIONS
- General Safety Rules
- Seat Belt Inspection
- Safety at Job Site
- Safety Features
- Clothing and Protective Equipment
- Keep Machine Clean
- Fire and Explosion Prevention
- Action if Fire Occurs
- Fire Extinguisher and First Aid Kit
- Mounting and Dismounting
- Inside Operator’s Compartment
- Emergency Escape from Operator’s Cab
- Precautions When Standing Up from Operator’s Seat
- Parking the Machine
- Leaving the Machine
- Transporting the Machine
- Loading and Unloading
- Towing
- Precautions When Using ROPS
- Unauthorized Modification
- Precautions for Attachments and Options
- Precautions When Cleaning Cab Glass
- Asbestos Hazard Alert
- Crush or Pinch-Point Dangers
- Precautions for Ventilation Exhaust Gas
- PRECAUTIONS BEFORE STARTING OPERATIONS
- PRECAUTIONS WHEN STARTING
- Precautions in Cold Areas
- PRECAUTIONS FOR JOB SITE
- Work Site Hazards
- Working on Loose or Unstable Ground
- Prohibited Operations
- Avoiding Dangerous Situations
- Working Near High Voltage Cables
- RULES FOR ROAD TRAVEL
- Travel Precautions
- Traveling on Slopes
- Using the Brakes
- Traveling in Reverse
- Operating on Snow or Frozen Surfaces
- PRECAUTIONS DURING INSPECTION AND MAINTENANCE
- Warning Tags
- Workplace Environment
- Systems Equipped with ECSS
- Equipment Storage
- Working Under the Machine
- Using Drop Lamps
- Using Proper Tools
- Keeping the Machine Clean
- Precautions When Welding
- Precautions When Using Hammer
- Noise
- Stopping Engine During Inspection and Maintenance
- Running the Machine During Maintenance
- Rules for Refueling the Machine
- Cooling System Precautions
- Window Washer Fluid
- Battery Information
- High-Pressure Precautions
- High-Temperature Precautions
- High Voltage
- Accumulator and Gas Spring
- Tires
- Storing Tires
- Using Compressed Air
- Disposal of Waste Materials
- Critical Parts
- Maintenance of Air Conditioner
- OPERATION
- GENERAL VIEW
- General View of Machine
- General View of Controls and Gauges
- EXPLANATION OF COMPONENTS
- Machine Monitor
- Types of Warnings
- Central Warning Lamp
- Character Display Portion
- Emergency Stop Items
- Caution Items
- Inspection and Maintenance Items
- Pilot Display Portion
- Meter Display Portion
- OTHER FUNCTIONS OF MACHINE MONITOR
- SWITCHES AND CONTROLS
- CONTROL LEVERS, PEDALS
- SECURITY LOCKS AND SAFETY FEATURES
- Steering Tilt Lock Lever
- Frame Lock Bar
- Caps with Locks
- Backup Alarm
- MACHINE FEATURES
- Towing Pin
- Grease Pump
- Cab Door
- Cab Wiper
- Dust Indicator
- Fire Extinguisher (if equipped)
- ELECTRICAL
- WORK OPERATIONS
- Walk-Around Check
- Precautions Before Starting Work Operations
- Check Before Starting Engine
- Adjustments
- Final Checks Before Starting Engine
- Starting Engine
- Operations and Checks After Starting Engine
- Stopping Engine
- Moving the Machine (Directional, Speed), Stopping the Machine
- Operation of Work Equipment
- Work Possible Using Wheel Loader
- Loading Operations
- Precautions During Work Operations
- Adjusting Work Equipment
- Measuring Dump Angle
- Parking the Machine
- Checks After Completion of Operation
- Locking the Machine
- HANDLING TIRES
- Precautions When Handling Tires
- TRANSPORTATION
- Transportation Procedure
- Loading and Unloading Trailers
- LIFTING THE MACHINE
- Lifting Position
- Lifting Procedure
- COLD WEATHER OPERATION
- Precautions for Low Temperature
- LONG-TERM STORAGE
- Before Storage
- During Storage
- After Storage
- AUTOMATIC AIR CONDITIONER
- Control Panel
- Method of Operation
- Precautions When Using Air Conditioner
- Inspection and Maintenance
- Cool Box
- KOMTRAX
- TROUBLESHOOTING
- When Machine Runs Out of Fuel
- Towing the Machine
- Discharged Battery
- Starting Engine with Booster Cables
- Lowering Work Equipment When Engine Has Stopped
- Other Troubleshooting
- MAINTENANCE
- GUIDES TO MAINTENANCE
- Check Service Meter
- Komatsu Genuine Replacement Parts
- Komatsu Genuine Oils
- Always Use Clean Washer Fluid
- Always Use Clean Oil and Grease
- Checking for Foreign Materials in Drained Oil and on Filters
- Fuel Strainer
- Welding Instructions
- Do Not Drop Things Inside the Machine
- Dusty Work Sites
- Avoid Mixing Oil
- Locking Inspection Covers
- Bleeding Air from Hydraulic Circuit
- Precautions When Installing Hydraulic Hoses
- Checks After Inspection and Maintenance
- Checks After Operation (with engine stopped)
- Checks When Engine is Running
- SERVICE OUTLINE
- Handling Oil, Fuel, Coolant, and Performing Oil Clinic
- Performing KOWA (Komatsu Oil Wear Analysis)
- Outline of Electric System
- WEAR PARTS
- RECOMMENDED FUEL, COOLANT, AND LUBRICANTS
- Fuel, Coolant, and Lubricant Ambient Temperature Chart
- Recommended Brands, Other Than Komatsu Genuine Oil
- Biodiesel Usage
- STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS
- PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
- Safety Critical Parts List
- MAINTENANCE SCHEDULE CHART
- SERVICE PROCEDURE
- Initial 10 Hours Service
- Initial 250 Hours Service
- Initial 1000 Hours Service
- When Required
- Check Before Starting
- Every 50 Hours Service
- Every 100 Hours Service
- Every 250 Hours Service
- Every 500 Hours Service
- Every 1000 Hours Service
- Every 2000 Hours Service
- Every 4000 Hours Service
- Every 8000 Hours Service
- SPECIFICATIONS
- OPTIONS, ATTACHMENTS
- JOYSTICK STEERING SYSTEM
- Structure and Function
- Components
- Steering with Joystick Lever or Steering Wheel
- Precautions for Steering with Joystick
- Operating the Joystick Steering System
- Getting In and Out of Operator’s Cab
- Adjustments
- TORQUE CONVERTER LOCKUP
- Components
- Method of Operation
- Warning/Limit Functions for Travel Speed
- AM/FM RADIO CASSETTE STEREO SOUND SYSTEM
- Sound System Components
- Method of Operation
- Precautions When Using
- Handling Cassette Tape
- MP3 AM/FM RADIO CD UNIT
- MULTI-FUNCTION LEVER
- Components
- Using FNR Switch to Change Between Forward and Reverse
- CENTRAL LUBRICATION SYSTEM
- Automatic Greasing Circuit Diagram
- WHEEL CHOCKS
- BATTERY DISCONNECT SWITCH
- BUCKET AND TIRES
Link Belt
