Komatsu PC270LC-6LE Hydraulic Excavator Service Manual
732 pages · Publication CEBD003001
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- Models
- PC270LC-6LE
- Serial coverage
- A83001 and up
- Manual type
- Service Manual
- Pages
- 732
- Publication
- CEBD003001
- Condition
- Brand new
What's inside
From the manual's own table of contents: 4 sections, 105 entries. See sample pages (PDF, 713 KB)
General5 topics
- General
- Structure and function
- Testing, adjusting and troubleshooting
- Disassembly and assembly
- Maintenance standard
STRUCTURE AND FUNCTION50 topics
- Swing motor
- Basic motor
- Swing lock valve
- Relief valve portion
- Reverse prevention valve (swing dampening)
- Center swivel joint
- Travel motor
- Valve control
- Work equipment and swing PPC valve
- Travel PPC valve
- Service PPC valve
- Safety lock valve
- Straight-travel system
- Boom lock valve
- Additional filter for breaker
- Work equipment
- Air conditioner
- Basic information on air conditioners
- Units related to refrigeration
- Principle of cooling
- Refrigerants
- Safety precautions
- Refrigerator oil (lube oil)
- Air conditioning condenser
- Air conditioner compressor
- Receiver with sight glass
- Air conditioner unit
- Outline
- Electrical wiring diagram
- Electrical circuit diagram
- Engine control system
- Operation of system
- Components of system
- Electronic control system
- Total system diagram
- Pump and engine mutual control function
- Pump and valve control function
- Auto-deceleration function
- Travel control function
- Active mode function
- Machine monitor system
- Monitor panel
- Oil maintenance function
- Switches
- Sensors
- Coolant level sensor
- Engine oil level sensor
- Engine oil pressure sensor
- Coolant temperature sensor
- Air cleaner clogging sensor
DISASSEMBLY AND ASSEMBLY43 topics
- NOZZLE HOLDER
- Removal
- Installation
- TURBOCHARGER
- THERMOSTAT
- GOVERNOR MOTOR
- CYLINDER HEAD ASSEMBLY
- DAMPER
- FUEL TANK
- Disassembly
- Assembly
- FINAL DRIVE
- SPROCKET
- SWING MOTOR AND MACHINERY
- SWING MACHINERY
- REVOLVING FRAME
- SWING CIRCLE
- IDLER ! RECOIL SPRING
- IDLER RECOIL SPRING
- IDLER
- TRACK ROLLER
- CARRIER ROLLER
- TRACK SHOE
- HYDRAULIC TANK
- MAIN PUMP
- MAIN PUMP INPUT SHAFT OIL SEAL
- CONTROL VALVE
- MAIN RELIEF VALVE
- LS VALVE
- PC-EPC, LS-EPC VALVES
- SOLENOID VALVE
- WORK EQUIPMENT - SWING PPC VALVE
- BOOM CYLINDER
- ARM CYLINDER
- BUCKET CYLINDER
- HYDRAULIC CYLINDER
- BUCKET
- BOOM
- OPERATOR’S CAB
- COUNTERWEIGHT
- ENGINE THROTTLE - PUMP CONTROLLER
- CONTROL STAND CASE
- MONITOR
MAINTENANCE STANDARD3 topics
- DIMENSION OF WORK EQUIPMENT
- Arm portion
- Bucket portion
Inside this manual
Real pages from this service manual (732 pages). Open the sample pages (PDF, 712 KB)
- Specifications, page 142: TRAVEL MOTOR
- Troubleshooting, page 351: N-MODE
- Diagram, page 428: C-MODE
- Foldout diagram, page 192
This is a service 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.
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.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
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, 732 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
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).