Komatsu MX09 Operation and Maintenance Manual (054-110-10)

On an MX09 working in tight quarry benches or construction backfills, you don’t have time for guesswork. This Operation and Maintenance Manual is what we lean on to set a steady service rhythm and keep small issues from turning into lost shifts. If a machine starts running hotter than usual or feels sluggish under load, this is the book you use to trace the basics first: daily checks, filter condition, cooling system cleanliness, and proper warm‑up and shutdown habits before you start chasing bigger faults.

Applications & Use Cases

Plan preventive maintenance so inspections, greasing, and filter changes line up with your actual hours and site conditions.
Walk operators through daily walk‑arounds to spot leaks, loose guards, or damaged hoses before they fail mid‑shift.
Verify adjustment steps after wear parts are replaced, helping the machine stay stable and predictable under heavy work.
Route and secure components correctly after minor repairs, reducing rub-throughs and nuisance breakdowns.
Train new operators on proper start/stop and warm‑up routines to extend engine and hydraulic life.

FAQ

Q: Can I keep this manual on a tablet in the cab?

A: Yes, as long as the file is readable offline; many techs use a rugged tablet so it’s searchable and always on hand.

Q: Is it worth printing parts of this manual?

A: Printing the inspection checklists and service routines is handy for clipboards, sign‑offs, and quick reference in dirty areas.

Safety Note

Always follow the manual’s safety instructions and lockout procedures before inspecting, adjusting, or servicing the MX09.

📘 Show Index

Komatsu MX09 Index:

MAIN MENU
Cover
Foreword
- Your Machine Serial Numbers and Dealer
- Safety Information
  - Signal Words
  - Example of Safety Message Using Signal Word
  - Other Signal Words
  - Safety Labels
  - Example of Safety Label Using Words
  - Example of Safety Label Using Pictogram
- Introduction
  - Directions of Machine
- Product Information
  - Machine Serial Number Plate and Its Location
  - Engine Serial Number Plate and Its Location
  - Emission Control Information Label and Its Location
  - Service Meter Location
- Contents
Safety
- Safety Labels
  - Location of Safety Labels
  - Safety Labels
- Safety Information
  - Safety Rules
  - If Abnormalities Are Found
  - Working Wear and Personal Protective Items
  - Fire Extinguisher and First Aid Kit
  - Safety Equipment
  - Keep Machine Clean
  - Keep Operator’s Compartment Clean
  - Leaving Operator’s Seat with Lock
  - Handrails and Steps
  - Mounting and Dismounting
  - No Persons on Attachments
  - Burn Prevention
  - Fire Prevention and Explosion Prevention
  - Action If Fire Occurs
  - Falling Objects, Flying Objects and Intruding Objects Prevention
  - Attachment Installation
  - Attachment Combinations
  - Unauthorized Modifications
  - Safety at Jobsite
  - Working on Loose Ground
  - Distance to High Voltage Cables
  - Ensure Good Visibility
  - Ventilation for Enclosed Area
  - Signalperson’s Signal and Signs
  - Asbestos Dust Hazard Prevention
- Safe Machine Operation
  - Starting Engine
  - Operation
  - Transportation
  - Battery
  - Towing
  - Lifting Objects with Bucket
- Safe Maintenance Information
  - Warning Tag
  - Keep Work Place Clean and Tidy
  - Appoint Leader When Working with Others
  - Stop Engine Before Carrying Out Maintenance
  - Two Workers for Maintenance When Engine Is Running
  - Proper Tools
  - Personnel
  - Attachments
  - Work Under the Machine
  - Noise
  - When Using Hammer
  - Welding Works
  - Removing Battery Terminals
  - Safety First When Using High-Pressure Grease to Adjust Track Tension
  - Safety Rules for High-Pressure Oil
  - Safety Handling High-Pressure Hoses
  - Waste Materials
  - Compressed Air
  - Periodic Replacement of Safety Critical Parts
Operation
- Machine View Illustrations
  - Overall Machine View
  - Controls and Gauges
- Detailed Controls and Gauges
  - Meters and Lamps
  - Switches
  - Control Levers and Pedals
  - Variable Blade
  - Engine Hood
  - Fuse
  - In-Line Fuse
  - Operator’s Manual Storage
- Machine Operations and Controls
  - Before Starting Engine
  - Starting Engine
  - After Starting Engine
  - Stopping the Engine
  - Check After Shutting Off Engine
  - Machine Operation
  - Steering the Machine
  - Swinging
  - Backhoe Controls and Operations
  - Prohibited Operations
  - General Operation Information
  - Traveling on Slopes
  - Escape from Mud
  - Recommended Applications
  - Bucket Replacement
  - Parking Machine
  - Machine Inspection After Daily Work
  - Rubber Tracks
- Transportation
  - Transportation Procedure
  - Loading and Unloading with Trailer
  - Lifting Machine
  - Shipping Machine Information
- Cold Weather Operation
  - Cold Weather Operation Information
  - After Daily Work Completion
  - After Cold Weather Season
- Long-Term Storage
  - Before Storage
  - During Storage
  - After Storage
  - Starting Machine After Long-Term Storage
- Troubles and Actions
  - Running Out of Fuel
  - Conditions That Are Not Failures
  - Towing the Machine
  - Severe Job Conditions
  - Discharged Battery
  - Battery Removal and Installation
  - Battery Charging
  - Starting Engine with Jumper Cables
  - Other Trouble
Maintenance
- Maintenance Information
- Lubricants, Coolant, and Filters
  - Handling Oil, Fuel, and Coolant
  - Electrical System Maintenance
- Lubricants, Fuel, and Coolant Specifications
  - Proper Selection
- Tightening Torque Specifications
  - Tightening Torque List
- Maintenance Schedule
  - Maintenance Interval for Hydraulic Breaker
- Maintenance Procedure
  - Initial 250 Hour Maintenance (Only After the First 250 Hours)
  - When Required
  - Checks Before Starting
  - Every 100 Hours Maintenance
  - Every 250 Hours Maintenance
  - Every 500 Hours Maintenance
  - Every 1000 Hours Maintenance
  - Every 2000 Hours Maintenance
Specifications
Attachments and Options
- General Information
  - Safety First
  - Attachment Installation
- Bucket with Hook
  - Hook Condition
  - Prohibited Operations
- Attachment Guide
  - Attachment Combinations
- Handling Arm with Built-In Breaker
  - Bucket Position
  - Removing and Installing Chisel
  - Procedure for Breaker Operations
  - Precautions When Carrying Out Breaker Operations
  - Stowing Chisel, Dummy Chisel
  - Precautions When Carrying Out Bucket Operations
  - Handling Dummy Link
  - Check Before Starting
  - Specifications
- Handling Bucket Coupler
  - Procedure for Removing Bucket
  - Procedure for Installing Bucket
- Recommended Attachment Operations
  - Hydraulic Breaker
Support
- Procedure
- Resources
  - Publications
  - Ditch Witch Training
Warranty