Komatsu PC78UU-11 Hydraulic Excavator Operation and Maintenance Manual (PEN02017-00)

Komatsu PC78UU-11 Hydraulic Excavator Operation and Maintenance Manual (PEN02017-00)

Format: PDF (Printable Document)

File Language: English

File Pages: 489

File Size: 33.24 MB (Speed Download Link)

Brand: Komatsu

Model: PC78UU-11 Hydraulic Excavator

Book No: PEN02017-00

Type of Document: Operation and Maintenance Manual

Categories: Komatsu PDF, PDF

$ 40

Komatsu PC78UU-11 Hydraulic Excavator Operation and Maintenance Manual (PEN02017-00)

On a PC78UU-11 that’s digging around buildings, working in tight streets, or loading trucks all day, this Operation and Maintenance Manual is what I use to keep the machine predictable and available. It walks you through the daily and periodic checks so you can spot loose pins, hose chafing, or slow hydraulic response before something fails. If, for example, the swing starts feeling jerky at the end of a shift, I’d use this book to verify the proper inspection sequence, check points, and basic adjustments before calling in heavier diagnostics.

Applications & Use Cases

Set up a maintenance rhythm so filters, pins, and wear parts are inspected and serviced before they cause downtime.
Plan service around your workload, timing greasing and inspections between shifts or jobs.
Trace early warning signs like slow boom raise or weak travel back to basic checks you can do on-site.
Verify correct operating practices for tight spaces, slopes, and truck loading to reduce stress on the machine.
Log work done in line with the manual so resale value and reliability stay up.

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, but keep a clean printed copy in the shop as backup.

Q: Is this useful if I’m not doing my own repairs?

A: Definitely; it helps you speak the same language with your dealer and schedule service before issues become breakdowns.

Safety Note

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

📘 Show Index

Komatsu PC78UU-11 Hydraulic Excavator Index:

Cover
Foreword
- Table of Contents
- Foreword
- Safety Information
- Introduction
- Machine 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
- General Precautions Common to Operation and Maintenance
  - Precautions Before You Start Operation
  - Prepare for Safety Operation
  - Procedures If Fire Occurs
  - Precautions to Prevent Fire
  - Precautions When You Get on or Off Machine
  - Precautions for Machine and Jobsite
- 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
  - Names of Machine Monitor Equipment
- Explanation of Components
  - Machine Monitor Equipment
  - Names of Switch Panel Equipment
  - Names of 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
  - Work Precautions
  - Precautions When You Work on Slope
  - Escape from Soft Ground
  - Recommended Applications
  - Replace and Invert Bucket
  - Park Machine
  - How to Examine After You Complete Work
  - Lock
  - Bucket and Cab Interference Avoidance Device
  - Handle Electrical System
  - Bucket and CAB Interference Prevention Device
  - Operate Automatic Stop
  - Bucket and Front Right External Part Interference Prevention Device
  - Handle Automatic Control Device
  - Depth Display from Ground Lev Mode
  - Depth Display from Base Level Mode
  - Boom Height Restriction Mode
- Handle Air Conditioner
  - Air Conditioner Equipment
  - Operate Air Conditioner
- Handle Radio
  - Explanation of Radio Equipment
  - Operate Radio
  - Radio Setting
  - Stow Antenna
- Handle KomVision
  - Precautions When You Use KomVision
  - Monitor Display
- Handle Road Liners and Rubber Shoes
  - Precautions When You Use Roadliners and Rubber Shoes
- Transportation
  - Load onto and Unload from a Trailer
  - How to Lift Machine
- Cold Weather Operation
  - Cold Weather Operation Information
  - Fuel and Lubricants
  - Coolant
  - Battery
  - Precautions After Daily Work Ends in Cold Weather
  - After Cold Weather Season
- Long-Term Storage Precautions
  - Prepare for Long-Term Storage
  - Maintenance During Long-Term Storage
  - How to 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
  - Procedures When Battery is Discharged
  - Other Trouble
Maintenance
- Precautions for Maintenance
- Maintenance Information
  - Oil, Fuel, and Coolant
  - Battery Terminal
  - Electrical Components
  - Standard Torque
- Maintenance Schedule
  - Maintenance Schedule Table
  - Maintenance Interval for Hydraulic Breaker
- Maintenance Procedure
  - When Required
  - Examine Before You Start Operation
  - 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 5000 Hours Maintenance
Specifications
- Specifications
Attachments and Options
- Precautions When You Use Attachments and Options Safely
- Handle Bucket with Hook
  - Work Precautions
- Handle Machine Ready for Installation of Attachment
  - Explanation of Components on Machines with Attachment
  - Connect Hydraulic Circuit of Attachment
  - Change over Hydraulic Circuit of Attachment
  - Remove and Install Attachment
  - Operate Attachment
  - Long-Term Storage
  - Specifications
- Handle Machine with Control Pattern Change-over Valve
  - Control Patterns Other Than Standard Control Pattern
  - How to Change Control Pattern
- Attachments and Options
  - Optional Parts and Attachments
  - How to Open and Close Front Guard
  - Select Attachment
  - Track Shoes Selection
- Recommended Attachment Operations
  - Hydraulic Breaker
  - Demolition Crusher
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