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Komatsu PC30MRX-1, PC40MRX-1 Hydraulic Excavator Operation and Maintenance Manual (SEAD035303)

Format: PDF (Printable Document)

File Language: English

File Pages: 279

File Size: 6.86 MB (Speed Download Link)

Brand: Komatsu

Model: PC30MRX-1, PC40MRX-1 Hydraulic Excavator

Book No: SEAD035303

Type of Document: Operation and Maintenance Manual

Categories: ,

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Komatsu PC30MRX-1, PC40MRX-1 Hydraulic Excavator Operation and Maintenance Manual (SEAD035303)

Komatsu PC30MRX-1, PC40MRX-1 Hydraulic Excavator Operation and Maintenance Manual (SEAD035303)

These PC30MRX-1 and PC40MRX-1 minis usually live on tight jobsites—utility trenches, landscaping, small demo—where you’re swinging close to walls and services all day. This operation and maintenance manual is what I’d use to set a solid service rhythm so the machine stays predictable and doesn’t quit mid-dig. For example, if a customer complains the swing feels jerky or the travel is getting weak, I’d go through the checks and scheduled services in here to trace whether it’s basic upkeep, operator habits, or something more serious starting to show.

Applications & Use Cases

  • Plan preventive maintenance so filters, oils, and wear items get handled before they cause downtime.
  • Set a realistic service schedule for machines working in dusty sites, mud, or constant short cycling.
  • Guide daily and weekly inspections to spot loose pins, leaks, and unusual noises early.
  • Verify correct operating procedures so operators don’t abuse the hydraulics or undercarriage.
  • Support troubleshooting by ruling out missed maintenance before chasing complex faults.

FAQ

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

A: Yes, it’s handy to have a digital copy for quick searching, then print key pages you use often.

Q: Is this useful if I’m buying a used PC30MRX-1 or PC40MRX-1?

A: Very—use it to inspect the machine and see if previous owners kept up with the basic service.

Safety Note

Always follow the manual’s shutdown and lockout steps before inspecting or servicing any component.

📘 Show Index

Komatsu PC30MRX-1, PC40MRX-1 Hydraulic Excavator Index:

  • MAIN MENU
  • COVER
  • FOREWORD
    • FOREWORD
    • SAFETY INFORMATION
    • INTRODUCTION
      • DIRECTIONS OF MACHINE
    • PRODUCT INFORMATION
      • MACHINE SERIAL NUMBER PLATE AND ITS LOCATION
      • ENGINE SERIAL NUMBER PLATE AND ITS LOCATION
      • SERVICE METER LOCATION
      • YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR
  • CONTENTS
  • SAFETY
    • SAFETY INFORMATION
    • WARNING LABELS AND PICTOGRAMS
      • WARNING LABELS AND PICTOGRAMS – LOCATION
      • WARNING LABELS AND PICTOGRAMS – ACTUAL
    • 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
      • WINDSHIELD WASHER FLUID
      • FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION
      • ATTACHMENT INSTALLATION
      • ATTACHMENT COMBINATIONS
      • CAB WINDOW GLASSES
      • UNAUTHORIZED MODIFICATIONS
      • SAFETY AT JOBSITE
      • WORKING ON LOOSE GROUND
      • DISTANCE TO HIGH VOLTAGE CABLES
      • ENSURE GOOD VISIBILITY
      • VENTILATION FOR ENCLOSED AREA
      • SIGNALMAN’S SIGNAL AND SIGNS
      • EMERGENCY EXIT FROM OPERATOR’S CAB
      • ASBESTOS DUST HAZARD PREVENTION
    • SAFETY MACHINE OPERATION
      • BEFORE STARTING ENGINE
      • AFTER STARTING ENGINE
      • TRANSPORTATION
      • BATTERY
      • TOWING
      • LIFTING OBJECTS WITH BUCKET
    • SAFETY 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
      • DO NOT DISASSEMBLE RECOIL SPRINGS
      • SAFETY RULES FOR HIGH PRESSURE OIL
      • SAFETY HANDLING HIGH PRESSURE HOSES
      • WASTE MATERIALS
      • AIR CONDITIONER MAINTENANCE
      • COMPRESSED AIR
      • PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
  • OPERATION
    • MACHINE VIEW ILLUSTRATIONS
      • OVERALL MACHINE VIEW
      • CONTROLS AND GAUGES
    • DETAILED CONTROLS AND GAUGES
      • MONITORING SYSTEM
      • SWITCHES
      • CONTROL LEVERS AND PEDALS
      • ENGINE HOOD
      • WINDSHIELD
      • SLIDING WINDOW
      • SLIDING DOOR
      • REAR WINDOW
      • EMERGENCY ESCAPE HAMMER
      • FUSE
      • BLOCK FUSE
      • CAR HEATER CONTROLS
      • AUXILIARY ELECTRIC POWER
      • CAP WITH LOCK
      • ASHTRAY
      • OPERATION MANUAL STORAGE
      • TOOL BOX
      • GREASE GUN HOLDER
    • MACHINE OPERATIONS AND CONTROLS
      • BEFORE STARTING ENGINE
      • STARTING ENGINE
      • AFTER STARTING ENGINE
      • STOPPING ENGINE
      • CHECK AFTER SHUT OFF ENGINE
      • MACHINE OPERATION
      • STEERING THE MACHINE
      • SWINGING
      • WORK EQUIPMENT 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
      • LOCKING
      • RUBBER SHOES AND ROAD LINERS
    • TRANSPORTATION
      • TRANSPORTATION PROCEDURE
      • LOADING AND UNLOADING WITH TRAILER
      • LIFTING MACHINE
      • SHIPPING MACHINE INFORMATION
    • COLD WEATHER OPERATION
      • COLD WEATHER OPERATION INFORMATION
      • AFTER DAILY WORK COMPLETION
      • CAB HEATER IN COLD WEATHER
      • 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
      • PHENOMENA THAT ARE NOT FAILURES
      • TOWING THE MACHINE
      • SEVERE JOB CONDITION
      • DISCHARGED BATTERY
      • OTHER TROUBLE
  • MAINTENANCE
    • MAINTENANCE INFORMATION
    • LUBRICANTS, COOLANT AND FILTERS
      • OIL
      • ELECTRIC SYSTEM MAINTENANCE
    • WEAR PARTS
      • WEAR PARTS LIST
    • LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS
      • PROPER SELECTION
    • TIGHTENING TORQUE SPECIFICATIONS
      • TIGHTENING TORQUE LIST
    • SAFETY CRITICAL PARTS
      • SAFETY CRITICAL PARTS LIST
    • MAINTENANCE SCHEDULE
      • MAINTENANCE SCHEDULE CHART
      • MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER
    • MAINTENANCE PROCEDURE
      • INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)
      • WHEN REQUIRED
      • CHECK BEFORE STARTING
      • EVERY 100 HOURS MAINTENANCE
      • EVERY 250 HOURS MAINTENANCE
      • EVERY 500 HOURS MAINTENANCE
      • EVERY 1000 HOURS MAINTENANCE
      • EVERY 2000 HOURS MAINTENANCE
  • SPECIFICATIONS
    • SPECIFICATIONS
  • ATTACHMENTS AND OPTIONS
    • ATTACHMENTS AND OPTIONS – GENERAL INFORMATION
      • SAFETY FIRST
      • ATTACHMENT INSTALLATION
    • BUCKET WITH HOOK
      • HOOK CONDITION
      • PROHIBITED OPERATIONS
    • AIR CONDITIONER
      • CONTROL PANEL AND COMPONENTS
      • AIR CONDITIONER CONTROLS
      • AIR CONDITIONER MAINTENANCE
    • RADIO
      • CONTROL PANEL
      • CONTROLS OF RADIO
      • CARE FOR RADIO
    • MACHINE READY FOR ATTACHMENT
      • LOCATIONS
      • HYDRAULIC CIRCUIT
      • ATTACHMENT OPERATIONS
      • LONG TERM STORAGE
    • ATTACHMENT GUIDE
      • ATTACHMENT COMBINATIONS
    • RECOMMENDED ATTACHMENT OPERATIONS
      • HYDRAULIC BREAKER
  • INDEX

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