Komatsu PC1250-11, PC120LC-11, PC120SP-11 Hydraulic Excavator Index:

• Cover
• Foreword
  • Table of 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) and 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
    • Safety Labels
  • General Precautions Common to Operation and Maintenance
    • Precautions Before You Start Operation
    • Prepare for Safety Operation
    • Precautions to Prevent Fire
    • Precautions When You Get on or Off Machine
    • Do Not Get Caught
    • Precautions Related to Protective Structures
    • Protection Against Objects Which Fall, Fly, or Enter
    • Unauthorized Modification
    • Precautions Related to Attachments and Options
    • Quick Coupler Attachment
    • Large Attachments and Combinations
    • Precautions for CAB Glass
    • Precautions When You Operate Engine Inside Building
  • Precautions for Operation
    • Precautions for Jobsite
    • Start Engine
    • Precautions for Operation
    • Precautions for Transportation
    • Towing and being Towed
    • Lifting Operation by Bucket with Hook
  • Precautions for Maintenance
    • Precautions Before Inspection and Maintenance
    • Precautions for Check and Maintenance
• Operation
  • General View
    • Names of Machine Equipment
    • Names of Cab Devices
    • Control Levers and Pedals
  • Explanation of Components
    • Machine Monitor Equipment
    • Switches
    • Control Levers and Pedals
    • Other Equipment
  • Machine Operations and Controls
    • Checks and Adjustment Before You Start Engine
    • How to Start Engine
    • Operations and Checks After You Start Engine
    • How to Stop Engine
    • How to Start Machine (Travel FORWARD and REVERSE) and Stop Machine
    • Steer Machine
    • How to Swing Machine
    • How to Operate Work Equipment
    • Handle Working Mode
    • Prohibited Operations
    • Precautions for Operation
    • Precautions When You Operate Machine on Slopes
    • How to Escape from Mud
    • Recommended Applications
    • Effective Use of Hydraulic Excavator
    • Replace Bucket
    • How to Park Machine
    • How to Examine After You Complete Work
    • Lock
  • Handle Air Conditioner
    • Explanation of Air Conditioner Components
    • Operate Air Conditioner
  • Handle Radio
    • Explanation of Radio Equipment
    • Operate Radio
    • Stow Antenna
  • Handle KomVision
    • Precautions When You Use KomVision
    • Monitor Display
  • Handle Anchor Point for Tie-off
  • Transportation
    • Precautions When You Transport Machine
    • Select Transportation Method
    • How to Lift Machine
    • Precautions When You Load Machine
    • Machine Configuration for Transportation
  • Cold Weather Operation
    • Cold Weather Operation Information
    • Precautions After Daily Work Ends in Cold Weather
    • After Cold Weather Season
  • Precautions for Long-Term Storage
    • Prepare for Long-Term Storage
    • Maintenance During Long-Term Storage
    • Start Machine After Long-Term Storage
  • Troubles and Procedures
    • Procedures When You Run Out of Fuel
    • Phenomena that are Not Failures
    • Precautions When You Tow Machine
    • Precautions for Severe Work Condition
    • Precautions for Discharged Battery
    • Other Trouble
• Maintenance
  • Precautions for Maintenance
    • Examine Service Meter Reading
    • Komatsu Genuine Replacement Parts
    • Komatsu Genuine Lubricants
    • Always Use Clean Washer Fluid
    • Clean Lubricants
    • Examine Drained Oil and Used Filter
    • Precautions When You Refill Oil or Fuel
    • Precautions for Welding
    • Do Not Drop Things Inside Machine
    • Precautions for KDPF
    • Dusty Jobsites
    • Avoid Mixing Oil
    • Lock Inspection Covers
    • Bleed Air from Hydraulic System
    • Precautions When You Install Hydraulic Hoses
    • Checks After Inspection and Maintenance
    • Select Fuel and Lubricants by Ambient Temperature
  • Outline of Maintenance
    • Handle Oil, Fuel, Coolant, and Do Oil Clinic
    • Handle Electrical Components
  • Standard Tightening Torque for Bolts and Nuts
  • Maintenance Schedule
    • Maintenance Schedule Table
    • Maintenance Interval When Diesel Fuel Mixed with Bio-Fuel is Used
  • Maintenance Procedure
    • Initial 100 Hours Maintenance (Only After the First 100 Hours)
    • Initial 500 Hours Maintenance (Only After the First 500 Hours)
    • When Required
    • Examine 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 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: PC1250-11
    • Specifications: PC1250SP-11
    • Specifications: PC1250LC-11
• Attachments and Options
  • Precautions When You Use Attachments and Options Safely
    • Precautions When You Select
    • Read the Operation and Maintenance Manual Thoroughly
    • Precautions When You Remove and Install
    • Precautions for Use
  • Attachments and Options
    • Install Attachment
    • Track Shoes Selection
  • Handle the Hydraulically Operated Stairway
    • Procedure to Operate Hydraulic Type Stairway
    • Procedures If Machine Does Not Move by Proximity Switch Failure Etc.
    • How to Examine and Adjust Proximity Switch
    • Procedures If Proximity Switch Has Failure
  • Radio (Bluetooth®)
    • Explanation of Radio Equipment
    • Operate Radio
    • Radio Setting
• Machine with Loading Shovel Specification
  • Explanation of Components
    • Switches
    • Handle Anchor Point for Tie-off
  • Machine Operations and Controls
    • How to Operate Work Equipment
    • Prohibited Operations
  • Recommended Applications
    • Digging Work
    • Loading Work
  • Precautions When You Disassemble Machine
    • Release Pressure
  • Transportation
    • Machine Configuration for Transportation
  • Consumable Parts
    • Consumable Parts List
  • Periodic Maintenance
    • Examine Before You Start Operation
    • How to Examine Oil Level in Hydraulic Tank, Add Oil
  • Every 10 Hours Maintenance
    • How to Lubricate
  • Every 5000 Hours Maintenance
    • How to Change Oil in Hydraulic Tank, Clean Strainer
  • Every 6 Months Maintenance
    • How to Examine Anchor Point for Tie-off
  • Specifications: PC1250-11
  • Combination of Work Equipment
    • Working Range: PC1250-11
• Replacement Parts
  • Defined Life Parts
    • Defined Life Parts List
  • Consumable Parts
    • Consumable Parts List
  • Recommended Fuel, Coolant, and Lubricant
    • Lubrication Chart
    • How to Use Fuel, Coolant and Lubricants by Ambient Temperature
    • Recommended Brands and Qualities Other Than Komatsu Genuine Oils
• INDEX