Komatsu PC900LC-11 Hydraulic Excavator Operation and Maintenance Manual (TEN01039-00)
On a PC900LC-11 that’s digging mass excavation or loading trucks in a quarry, this Operation and Maintenance Manual is what I keep handy to keep the machine earning instead of parked. It walks you through the daily and scheduled checks so you can spot loose hardware, hose chafe, or a lazy swing before it turns into a shutdown. If an operator reports slow boom response at the end of a shift, I’d use this manual to verify the right inspection points, confirm basic settings, and rule out simple maintenance issues before calling in heavier diagnostics.
Applications & Use Cases
- Plan preventive maintenance so you can schedule services around production instead of reacting to breakdowns.
- Set a consistent inspection routine for operators and techs, reducing missed wear points on undercarriage and hydraulics.
- Trace early signs of leaks or overheating and verify simple causes before pulling components.
- Align machine setup with job conditions, like long digging cycles or heavy rock work, to minimize unnecessary stress.
- Train new operators on proper warm-up, shutdown, and basic care to avoid abuse-related failures.
FAQ
Q: Can I keep this manual on a tablet in the field?
A: Yes, it’s practical to use digitally; you can zoom diagrams, search keywords, and keep it in the cab or service truck.
Q: Is it worth printing sections of this manual?
A: Many mechanics print the key maintenance pages and keep them in a shop binder or jobsite box for quick, grease-proof reference.
Safety Note
Always follow the manual’s safety instructions and lockout procedures before inspecting, adjusting, or servicing this excavator.
Komatsu PC900LC-11 Hydraulic Excavator Index:
- COVER
- FOREWORD
- CONTENTS
- READ THIS MANUAL
- SAFETY INFORMATION
- INTRODUCTION
- MAIN USE OF MACHINE
- DIRECTIONS OF MACHINE
- VISIBILITY FROM OPERATOR’S SEAT
- ENGINE TECHNOLOGY TO CONFORM EXHAUST GAS EMISSION
- PRODUCT INFORMATION
- LOCATION OF PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE
- LOCATION OF ENGINE NUMBER PLATE
- SERVICE METER LOCATION
- YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR
- ABBREVIATION LIST
- 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
- 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
- OPERATION
- GENERAL VIEW
- MACHINE EQUIPMENT NAME
- CAB EQUIPMENT NAME
- CONTROLS AND GAUGES NAMES
- EXPLANATION OF COMPONENTS
- MACHINE MONITOR EQUIPMENT
- SWITCHES
- CONTROL LEVERS AND PEDALS
- OTHER EQUIPMENT
- MACHINE OPERATIONS AND CONTROLS
- CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE
- START ENGINE
- OPERATIONS AND CHECKS AFTER YOU START ENGINE
- STOP ENGINE
- METHOD FOR STARTING MACHINE (TRAVEL FORWARD AND REVERSE) AND STOPPING MACHINE
- METHOD FOR STEERING MACHINE
- SWING MACHINE
- OPERATE WORK EQUIPMENT
- HANDLE WORKING MODE
- PROHIBITED OPERATIONS
- PRECAUTIONS FOR OPERATION
- PRECAUTIONS WHEN YOU OPERATE MACHINE ON SLOPES
- METHOD FOR ESCAPING FROM MUD
- RECOMMENDED APPLICATIONS
- EFFECTIVE USE OF HYDRAULIC EXCAVATOR
- REPLACE BUCKET
- PARK MACHINE
- METHOD FOR CHECKING AFTER FINISHING WORK
- LOCK
- AIR CONDITIONER
- AIR CONDITIONER EQUIPMENT
- METHOD FOR OPERATING AIR CONDITIONER
- RADIO(Bluetooth®)
- RADIO EQUIPMENT
- METHOD FOR CONTROLLING RADIO
- RADIO SETTING
- STOW ANTENNA
- KomVision
- PRECAUTIONS WHEN USING KomVision
- MONITOR DISPLAY
- HANDLE ANCHOR POINT FOR TIE-OFF
- TRANSPORTATION
- PRECAUTIONS FOR TRANSPORTING MACHINE
- SELECT TRANSPORTATION METHOD
- LIFT MACHINE
- PRECAUTIONS TO LOAD MACHINE
- MACHINE CONFIGURATION FOR TRANSPORTATION
- SPREAD AND NARROW TRACK FRAME GAUGE
- 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
- 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
- PRECAUTIONS FOR WELDING
- 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
- HANDLE ANCHOR POINT FOR TIE-OFF
- OUTLINE OF MAINTENANCE
- HANDLE OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC
- HANDLE ELECTRICAL COMPONENTS
- STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS
- MAINTENANCE SCHEDULE
- MAINTENANCE SCHEDULE TABLE
- MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER
- MAINTENANCE PROCEDURE
- INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)
- INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)
- INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)
- WHEN REQUIRED
- CHECK BEFORE YOU START OPERATION
- EVERY 10 HOURS MAINTENANCE
- EVERY 100 HOURS MAINTENANCE
- EVERY 250 HOURS MAINTENANCE
- EVERY 500 HOURS MAINTENANCE
- EVERY 1000 HOURS MAINTENANCE
- EVERY 2000 HOURS MAINTENANCE
- EVERY 2500 HOURS MAINTENANCE
- EVERY 4000 HOURS MAINTENANCE
- EVERY 4500 HOURS MAINTENANCE
- EVERY 5000 HOURS MAINTENANCE
- EVERY 8000 HOURS MAINTENANCE
- EVERY 9000 HOURS MAINTENANCE
- EVERY 6 MONTHS MAINTENANCE
- SPECIFICATIONS
- SPECIFICATIONS
- SPECIFICATIONS: PC900LC-11
- SPCIFICATIONS: PC900LC-11 SE SHOVEL SPEC
- 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 FOR USING
- HANDLE ANCHOR POINT FOR TIE-OFF
- HANDLE COUNTERWEIGHT REMOVER
- EXPLANATION OF COMPONENTS OF COUNTERWEIGHT REMOVER
- METHOD FOR OPERATING COUNTERWEIGHT REMOVER
- ATTACHMENTS AND OPTIONS
- INSTALL ATTACHMENT
- TRACK SHOES SELECTION
- REPLACEMENT PARTS
- DEFINED LIFE PARTS
- CONSUMABLE PARTS
- RECOMMENDED FUEL, COOLANT, AND LUBRICANT
- LUBRICATION CHART
- USE FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
- RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU GENUINE OILS
- INDEX
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