Komatsu HB365LC-3E0, HB365NLC-3E0 Hydraulic Excavator Operation and Maintenance Manual (UENAM01934)
On these HB365 hybrid excavators, you’re usually digging in tough ground all day, loading trucks, or handling heavy site prep where the machine cycles constantly. This Operation and Maintenance Manual is what I use to set a solid service rhythm so the machine stays predictable and doesn’t surprise you with downtime. If, for example, the hybrid system starts feeling sluggish or you notice uneven swing response, I’ll lean on this book to verify the basic checks, walk through the daily inspections, and make sure nothing simple is being missed before we call in deeper diagnostics.
Applications & Use Cases
- Plan preventive maintenance so filters, inspections, and adjustments are done before wear turns into a breakdown.
- Set up daily and weekly walk-arounds to spot leaks, loose hardware, or hybrid-system warnings early.
- Trace odd noises or vibrations back to basic causes by checking recommended points in the hydraulic and swing areas.
- Verify correct operating practices to keep fuel use and component stress under control on long shifts.
- Prepare for seasonal changes, adjusting inspection focus for dust, mud, or cold starts.
FAQ
Q: Can I keep this manual on a tablet in the cab?
A: Yes, it’s practical to use digitally; you can zoom diagrams and search terms instead of flipping pages.
Q: Is it worth printing certain pages?
A: I’d print the inspection checklists and lubrication charts so operators can mark them up in the field.
Safety Note
Always follow the manual’s shutdown and lockout steps before inspecting or servicing any part of the excavator.
📘 Show Index
Komatsu HB365LC-3E0, HB365NLC-3E0 Hydraulic Excavator Index:
- FOREWORD
- READ THIS MANUAL
- KOMATSU MACHINE OPERATOR PRIVACY POLICY
- SAFETY INFORMATION
- SAFETY LABELS
- NOISE
- VIBRATION LEVELS
- VIBRATION – OPERATING CONDITION
- GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE
- INTRODUCTION
- MAIN USE OF MACHINE
- DIRECTIONS OF MACHINE
- VISIBILITY FROM OPERATOR’S SEAT
- OUTLINE OF HYBRID SYSTEM
- CONFIGURATION OF HYBRID SYSTEM
- LOW FUEL CONSUMPTION BY HYBRID SYSTEM
- ENGINE TECHNOLOGY TO CONFORM EXHAUST GAS EMISSION
- PRODUCT INFORMATION
- LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE
- LOCATION OF EU REGULATIONS, ENGINE NUMBER PLATE
- FLUORINATED GREENHOUSE GASES
- SERVICE METER LOCATION
- YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR
- SERIAL PLATE
- METHOD FOR CHECKING ENGINE TYPE
- DECLARATION OF CONFORMITY
- CONTENTS
- SAFETY
- SAFETY
- SAFETY LABELS
- LOCATION OF SAFETY LABELS
- CONTENTS OF SAFETY LABELS
- GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE
- PRECAUTIONS BEFORE STARTING OPERATION
- PREPARATIONS FOR SAFE OPERATION
- PRECAUTIONS TO PREVENT FIRE
- PRECAUTIONS WHEN GETTING ON OR OFF MACHINE
- DO NOT GET CAUGHT IN WORK EQUIPMENT
- PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES
- PROTECTION AGAINST FALLING, FLYING OR INTRUDING OBJECTS
- ACTIONS IN THE EVENT OF DAMAGE TO SAFETY STRUCTURES
- UNAUTHORIZED MODIFICATION
- PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS
- QUICK COUPLER ATTACHMENT
- LARGE ATTACHMENTS AND COMBINATIONS
- PRECAUTIONS RELATED TO CAB GLASS
- PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING
- PRECAUTIONS FOR OPERATION
- PRECAUTIONS FOR JOBSITE
- START ENGINE
- PRECAUTIONS FOR OPERATION
- PRECAUTIONS FOR TRANSPORTATION
- TOWING AND BEING TOWED
- LIFTING OPERATION BY USING BUCKET WITH HOOK
- PRECAUTIONS FOR MAINTENANCE
- PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE
- PRECAUTIONS FOR CHECK AND MAINTENANCE
- PRECAUTIONS FOR DEF
- GENERAL CHARACTER AND PRECAUTIONS FOR HANDLING
- PRECAUTIONS FOR ADDING
- PRECAUTIONS FOR STORING
- PRECAUTIONS FOR FIRE HAZARD AND LEAKAGE
- OTHER PRECAUTIONS
- PRECAUTIONS FOR HYBRID SYSTEM
- PRECAUTIONS FOR ELECTROMAGNETIC WAVES
- OPERATION
- GENERAL VIEW
- MACHINE EQUIPMENT NAME
- CAB EQUIPMENT NAMES
- CONTROLS AND GAUGES NAMES
- EXPLANATION OF COMPONENTS
- EXPLANATION OF MACHINE MONITOR EQUIPMENT
- SWITCHES
- CONTROL LEVERS AND PEDALS
- OTHER EQUIPMENT
- MACHINE OPERATIONS AND CONTROLS
- CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE
- METHOD FOR STARTING ENGINE
- METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE
- METHOD FOR STOPPING ENGINE
- METHOD FOR STARTING MACHINE (TRAVEL FORWARD AND REVERSE) AND STOPPING MACHINE
- METHOD FOR STEERING MACHINE
- METHOD FOR SWINGING MACHINE
- METHOD FOR OPERATING WORK EQUIPMENT
- HANDLE WORKING MODE
- PROHIBITED OPERATIONS
- PRECAUTIONS FOR OPERATION
- PRECAUTIONS FOR WORKING ON SLOPE
- METHOD FOR ESCAPING FROM MUD
- RECOMMENDED APPLICATIONS
- EFFECTIVE USE OF HYDRAULIC EXCAVATOR
- METHOD FOR REPLACING AND INVERTING BUCKET
- METHOD FOR PARKING MACHINE
- METHOD FOR CHECKING AFTER FINISHING WORK
- LOCK
- HANDLE AIR CONDITIONER
- EXPLANATION OF AIR CONDITIONER EQUIPMENT
- METHOD FOR OPERATING AIR CONDITIONER
- HANDLING RADIO
- EXPLANATION OF RADIO EQUIPMENT
- METHOD FOR CONTROLLING RADIO
- STOW ANTENNA
- SPACE FOR RADIO CASSETTE
- KomVision
- PRECAUTIONS WHEN USING KomVision
- MONITOR DISPLAY
- TRANSPORTATION
- PRECAUTIONS FOR TRANSPORTING MACHINE
- SELECT TRANSPORTATION METHOD
- LOADING AND UNLOADING WITH TRAILER
- METHOD FOR LIFTING MACHINE
- COLD WEATHER OPERATION
- COLD WEATHER OPERATION INFORMATION
- PRECAUTIONS AFTER DAILY WORK COMPLETION IN COLD WEATHER
- AFTER COLD WEATHER SEASON
- PRECAUTIONS FOR LONG-TERM STORAGE
- PREPARATION FOR LONG-TERM STORAGE
- MAINTENANCE DURING LONG-TERM STORAGE
- STARTING MACHINE AFTER LONG-TERM STORAGE
- TROUBLES AND ACTIONS
- ACTIONS WHEN RUNNING OUT OF FUEL
- PHENOMENA THAT ARE NOT FAILURES
- PRECAUTIONS FOR TOWING MACHINE
- PRECAUTIONS FOR SEVERE JOB CONDITION
- PRECAUTIONS FOR DISCHARGED BATTERY
- IF TROUBLES ON HYBRID SYSTEM OCCUR
- OTHER TROUBLE
- MAINTENANCE
- PRECAUTIONS FOR MAINTENANCE
- CHECK SERVICE METER READING
- KOMATSU GENUINE REPLACEMENT PARTS
- KOMATSU GENUINE LUBRICANTS
- ALWAYS USE CLEAN WASHER FLUID
- FRESH AND CLEAN LUBRICANTS
- CHECK DRAINED OIL AND USED FILTER
- PRECAUTIONS FOR REFILLING OIL OR FUEL
- PRECAUTIONS FOR ADDING DEF
- WELDING INSTRUCTIONS
- DO NOT DROP THINGS INSIDE MACHINE
- PRECAUTIONS FOR KDPF
- PRECAUTIONS FOR SCR ASSEMBLY
- DUSTY JOBSITES
- AVOID MIXING OIL
- LOCK INSPECTION COVERS
- BLEED AIR FROM HYDRAULIC CIRCUIT
- PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES
- CHECKS AFTER INSPECTION AND MAINTENANCE
- FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE
- CLOSE ENGINE HOOD SECURELY
- PRECAUTIONS WHEN YOU CLEAN WORK EQUIPMENT CONTROL LEVER
- OUTLINE OF MAINTENANCE
- HANDLE OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC
- HANDLE ELECTRICAL COMPONENTS
- HANDLING HYBRID COMPONENTS AND HIGH VOLTAGE WIRING
- STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS
- MAINTENANCE SCHEDULE
- MAINTENANCE SCHEDULE TABLE
- MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER
- MAINTENANCE PROCEDURE
- INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)
- WHEN REQUIRED
- CHECKS BEFORE STARTING
- EVERY 50 HOURS MAINTENANCE
- EVERY 250 HOURS MAINTENANCE
- EVERY 500 HOURS MAINTENANCE
- EVERY 1000 HOURS MAINTENANCE
- EVERY 2000 HOURS MAINTENANCE
- EVERY 4000 HOURS MAINTENANCE
- EVERY 4500 HOURS MAINTENANCE
- EVERY 5000 HOURS MAINTENANCE
- EVERY 8000 HOURS MAINTENANCE
- EVERY 9000 HOURS MAINTENANCE
- SPECIFICATIONS
- SPECIFICATIONS
- SPECIFICATIONS: HB365LC-3 E0, HB365NLC-3 E0
- EXPLANATION OF LIFT CAPACITY CHART (1-PIECE BOOM)
- ATTACHMENTS AND OPTIONS
- PRECAUTIONS FOR USING ATTACHMENT AND OPTIONS
- PRECAUTIONS WHEN SELECTING
- READ THE OPERATION AND MAINTENANCE MANUAL THOROUGHLY
- PRECAUTIONS WHEN REMOVING AND INSTALLING
- PRECAUTIONS WHEN USING
- QUICK COUPLER SYSTEM
- AUTOMATIC GREASE SYSTEM
- HANDLING AUTOMATIC GREASE SYSTEM
- SYSTEM OPERATION
- CHANGING THE GREASE INTERVAL WITH THE IN-CAB DISPLAY
- INDICATION ON THE IN-CAB DISPLAY
- METHOD FOR CHECKING AUTO-GREASING SYSTEM
- REFILLING GREASE
- PROCEDURE FOR ADDING GREASE
- SYSTEM TEST
- HANDLE BUCKET WITH HOOK
- PRECAUTIONS FOR OPERATION
- HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
- EXPLANATION OF COMPONENTS ON MACHINE EQUIPPED WITH ATTACHMENT
- METHOD FOR CHANGE-OVER AND CONNECT HYDRAULIC CIRCUIT FOR MACHINE READY FOR INSTALLATION OF ATTACHMENT
- METHOD FOR REMOVING AND INSTALLING ATTACHMENT
- METHOD FOR OPERATING ATTACHMENT
- LONG-TERM STORAGE
- MAINTENANCE OF ADDITIONAL FILTER FOR BREAKER
- SPECIFICATIONS
- ARM/PIN INFORMATION
- ATTACHMENTS AND OPTIONS
- INSTALL ATTACHMENT
- INSTALL ATTACHMENT
- TRACK SHOES SELECTION
- BUCKET TEETH SELECTION
- RECOMMENDED ATTACHMENT OPERATIONS
- REPLACEMENT PARTS
- PERIODIC REPLACEMENT OF DEFINED LIFE PARTS
- CONSUMABLE PARTS
- RECOMMENDED FUEL, COOLANT, AND LUBRICANT
- LUBRICATION CHART
- USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
- RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS
- INDEX
- Blank Page
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