Komatsu PC270LC-7L Hydraulic Excavator Operation & Maintenance Manual
301 pages · Publication CEAM008703
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- Models
- PC270LC-7L
- Serial coverage
- PC270LC-7L A86001 and up
- Manual type
- Operation & Maintenance Manual
- Pages
- 301
- Publication
- CEAM008703
- Condition
- Brand new
What's inside
From the manual's own table of contents: 394 topics. See sample pages (PDF, 388 KB)
- FOREWORD
- SAFETY INFORMATION
- Signal Words
- Other Signal Words
- 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
- SAFETY LABELS
- Position For Attaching Safety Labels
- 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
Show all 394 topics
- Burn Prevention
- Hot Coolant
- Hot Oil
- Fire Prevention And Explosion Prevention
- Fire Caused By Fuel Or Oil
- Fire Caused By Accumulation Of Flammable Material
- Fire Coming From Electric Wiring
- Fire Coming From Hydraulic Line
- Explosion Caused By Lighting Equipment
- Action If Fire Occurs
- Windshield Washer Fluid
- Falling Objects, Flying Objects And Intruding Objects Prevention
- Attachment Installation
- Attachment Combinations
- Cab Widow Glass
- 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
- SAFE MACHINE OPERATION
- Starting Engine
- Checks Before Starting Engine
- Safety Rules For Starting Engine
- Starting Engine In Cold Weather
- OPERATION
- Checks After Starting Engine, Before Operation
- Safety Rules For Changing Machine Directions
- Safety Rules For Traveling
- Traveling On Slopes
- Operations On Slopes
- Prohibited Operations
- Operations On Snow
- Parking Machine
- Transportation
- Loading And Unloading
- Shipping The Machine
- Battery
- Battery Hazard Prevention
- Starting Engine With Booster Cables
- Towing
- Safety Rules For Towing
- Lifting Objects With Bucket
- Lifting Work Using Bucket With Hook
- Safety Rules For Lifting Objects
- 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
- Accumulator
- Personnel
- Attachments
- Noise
- When Using Hammer
- Welding
- Removing Battery Terminals
- Adjusting 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
- GENERAL VIEW
- General View Of Machine
- General View Controls And Gauges
- EXPLANATION OF COMPONENTS
- Machine Monitor
- Basic Operation Of Machine Monitor
- If There Is Abnormality When Starting Engine
- If Any Abnormality Occurs During Operation
- Basic Check Items
- Radiator Coolant Level Monitor
- Engine Oil Level Monitor
- Maintenance Interval Monitor
- Caution Items
- Charge Monitor
- Fuel Level Monitor
- Air Cleaner Clogging Monitor
- Engine Coolant Temperature Monitor
- Hydraulic Oil Temperature Monitor
- Emergency Stop Items
- Engine Oil Pressure Monitor
- Meter Display Portion
- Pilot Display
- Gauges and Meters
- Monitor Switches
- Working Mode Selector Switch (Basic Switch)
- Auto-deceleration Switch
- Travel Speed Selector Switch
- Wiper Switch
- Window Washer Switch
- Maintenance Switch
- Select Switch
- Back Switch
- Up Switch, Down Switch
- Input Confirmation Switch
- Liquid Crystal Monitor Adjustment Switch
- Switches
- Starting Switch
- Fuel Control Dial
- Cigarette Lighter
- Swing Lock Switch
- Lamp Switch
- Alarm Buzzer Stop Switch
- Horn Switch
- Knob Switch
- Room Lamp Switch
- Emergency Pump Drive Switch
- Swing Brake Cancel Switch
- Rotating Lamp Switch
- Control Levers, Pedals
- Safety Lock Lever
- Travel Levers
- Work Equipment Control Lever
- Ceiling Window
- Front Window
- Door Lock
- Cap, Cover With Lock
- Method Of Opening And Closing Cap With Lock
- Method Of Opening And Closing Cover With Lock
- Hot And Cool Box
- Magazine Box With Cup Holder
- Ashtray
- Air Conditioner
- General Location Of Control Panel
- Precautions When Using Air Conditioner
- Check, Maintain Machine Equipped With Air Conditioner
- Other Functions
- Car Radio
- Method Of Operation
- Power Pick-up Port
- Fuse
- Fuse Capacities And Circuit Names
- Fusible Link
- Controller
- Toolbox
- Grease Gun Holder
- Handling The Accumulator
- Releasing Pressure In Control Circuit
- MACHINE OPERATIONS AND CONTROLS
- Before Starting Engine
- Walk-Around Checks
- Checks Before Starting
- Adjustments Before Operation
- Seat Belt
- Normal Starting
- After Starting Engine
- Breaking-in The New Machine
- Warm-up Operation
- In Cold Areas (Automatic Warm-up Operation)
- Stopping The Engine
- Check After Shutting Off Engine
- Machine Operation
- Preparations For Moving The Machine
- Moving Machine Forward
- Moving Machine Backward
- Stopping Machine
- Steering The Machine
- Steering The Machine When Stopped
- Changing Direction Of The Machine
- Counter-rotation Turn (Spin Turn)
- Swinging
- Work Equipment Controls And Operations
- Operating Working Mode
- Working Mode
- One-touch Power Max. Switch
- Swing Force
- Travel Force
- Hydraulic Cylinder Stroke Ends
- Bucket Dropping Force
- Machine Dropping Force
- Digging Hard Rocky Ground
- Sudden Lever Shifting High Speed Travel
- General Operation Information
- Traveling
- High Speed Travel
- Permissible Water Depth
- Traveling Downhill
- Engine Stopped On Slope
- Precautions On Slopes
- Escape From Mud
- Stuck One Side Of Track
- Stuck Both Sides Of Tracks
- Recommended Applications
- Backhoe Work
- Shovel Work
- Ditching Work
- Loading Work
- Replacement And Inversion Of Bucket
- Replacement
- Inversion
- Check After Shut Off Engine
- Machine Inspection After Daily Work
- Locking
- Transportation Procedure
- Loading And Unloading With Trailer
- Loading
- Securing Machine
- Unloading
- Lifting Machine
- COLD WEATHER OPERATION
- Fuel And Lubricants
- Cooling System Coolant
- Monitor
- After Operations
- After Cold Weather Season
- LONG TERM STORAGE
- Before Storage
- During Storage
- After Storage
- Starting Machine
- TROUBLESHOOTING
- After Running Out Of Fuel
- Phenomena That Are Not Failures
- Towing The Machine
- Lightweight Towing Hook
- Precautions On Particular Jobsites
- Discharged Battery
- Removal And Installation Of Battery
- Battery Charges
- Other Trouble
- Electrical System
- Chassis
- Engine
- Electronic Control System
- MAINTENANCE INFORMATION
- Service Meter Reading
- Komatsu Genuine Replacement Parts
- Komatsu Genuine Lubricants
- Fresh And Clean Lubricants
- Check Drained Oil And Used Filter
- Fuel Strainer
- Welding Instructions
- Do Not Drop Things Inside Machine
- Dusty Jobsite
- Avoid Mixing Lubricants
- Locking The Inspection Covers
- Hydraulic System - Air Bleeding
- Hydraulic Hose Installation
- Checks After Inspection And Maintenance Works
- Selecting Fuel And Lubricants To Match Ambient Temperature
- LUBRICANTS, COOLANT AND FILTERS
- Handling Oil, Fuel, Coolant, And Performing Oil Clinic
- Fuel
- Grease
- Carrying Out Kowa (Komatsu Oil Wear Analysis)
- Oil And Fuel Storage
- Filters
- Lubrication Chart Decal Explanation
- Electric System Maintenance
- Handling Hydraulic System
- WEAR PARTS LIST
- FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
- Proper Selection Of Fuel, Coolant And Lubricants
- TIGHTENING TORQUE SPECIFICATIONS
- Safety Critical Parts
- MAINTENANCE SCHEDULE
- Maintenance Schedule Chart
- Maintenance Interval For Hydraulic Breaker
- Replacing Hydraulic Element
- Changing Oil In Hydraulic Tank
- Replacing Additional Filter Element For Breaker
- MAINTENANCE PROCEDURE
- Initial 250 Hours Maintenance
- Initial 1000 Hours Maintenance (Only After The First 1000 Hours)
- When Required
- Check, Clean And Replace Air Cleaner Element
- Clean Inside Of Cooling System
- Check And Tighten Track Shoe Bolts
- Check And Adjust Track Tension
- Check Electrical Intake Air Heater
- Replace Bucket Teeth (Vertical Pin Type)
- Replace Bucket Teeth (Horizontal Pin Type)
- Adjust Bucket Clearance
- Check Window Washer Fluid Level, Add Fluid
- Check And Adjust Air Conditioner
- Cleaning Cab Floor
- Bleeding Air From Hydraulic System
- Releasing Internal Pressure In Hydraulic Circuit
- Check Nitrogen Gas Charge Pressure In Accumulator (Control Circuit)
- Check Before Starting
- Every 100 Hours Maintenance
- Lubricating
- Every 250 Hours Maintenance
- Check Oil Level In Machinery Case, Add Oil
- Check Oil Level In Final Drive Case, Add Oil
- Check Level Of Battery Electrolyte
- Check, Adjust Tension Of Air Conditioner Compressor Belt
- Every 500 Hours Maintenance
- Lubricate Swing Circle (2 Points)
- Change Oil In Engine Oil Pan, Replace Engine Oil Filter Cartridge
- Replace Fuel Filter Cartridge
- Check Swing Pinion Grease Level, Add Grease
- Clean & Inspect Radiator Fins, Oil Cooler Fins & Condenser Fins
- Clean Internal & External Air Filters Of Air Conditioner System
- Replace Breather Element In Hydraulic Tank
- Every 1000 Hours Maintenance
- Replace Hydraulic Filter Element
- Change Oil In Swing Machinery Case
- Check Oil Level In Damper Case, Add Oil
- Check All Tightening Parts Of Turbocharger
- Check Play Of Turbocharger Rotor
- Replace Corrosion Resistor Cartridge
- Check Fan Belt Tension And Replace Fan Belt
- Check Nitrogen Gas Charge Pressure In Accumulator (For Breaker)
- Every 2000 Hours Maintenance
- Change Oil In Final Drive Case
- Clean Hydraulic Tank Strainer
- Clean, Check Turbocharger
- Check Alternator, Starting Motor
- Check Engine Valve Clearance, Adjust
- Check Vibration Damper
- Every 4000 Hours Maintenance
- Check Water Pump
- Every 5000 Hours Maintenance
- Change Oil In Hydraulic Tank
- SPECIFICATIONS
- GENERAL PRECAUTIONS
- Precautions Related To Safety
- Precautions When Selecting
- Read The Instruction Manual Thoroughly
- Precautions When Removing Or Installing
- Precautions When Using
- Precautions When Installing Attachments
- HANDLING BUCKET WITH HOOK
- Checking For Damage To Bucket With Hook
- Precautions During Operations
- MACHINES READY FOR ATTACHMENTS
- Stop Valve
- Selector Valve
- Attachment Control Pedal
- Lock Pin
- Additional Filter For Breaker
- Hydraulic Circuit
- Switching The Hydraulic Circuit
- Adjusting Oil Flow
- Switching Between Breaker And General Attachment
- Hydraulic Circuit Connection
- Oil Flow
- Replace Additional Breaker Filter Element
- Attachment Installation And Removal Procedure
- Removal Procedure
- Installation Procedure
- When Using Breaker
- When Using Crusher Or Other General Attachment
- Long-term Storage
- ATTACHMENT GUIDE
- Selection Of Track Shoes
- Method Of Selecting Shoes
- Selection Of Bucket Teeth
- Selecting Teeth
- Standards For Selecting Vertical And Horizontal Pin Type Teeth
- Handling Trapezoidal Bucket
- How To Excavate
- Ditch Gradient Of 45°
- Ditch Gradient Of 40° And 38°
- Handling Extension Arm
- Handling Clamshell Bucket
- How To Perform Excavation
- RECOMMENDED ATTACHMENT OPERATIONS
- Hydraulic Breaker
Inside this manual
Real pages from this operation & maintenance manual (301 pages). Open the sample pages (PDF, 386 KB)
- Controls and operation, page 91: Work Equipment Control Lever
- Maintenance, page 247: MAINTENANCE
- Specifications, page 271: SPECIFICATIONS
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the PC270LC-7L are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
This manual: Operation & Maintenance Manual CEAM008703$69.51
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This is an operator's manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
This manual
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 301 pages
Quantity one is the manual described above.
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Ships in 1 business day.
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Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).