Komatsu PC20R-8, PC25R-8, PC27R-8 Hydraulic Excavator Operation & Maintenance Manual
240 pages · Publication SEAM015201
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What's inside
From the manual's own table of contents: 31 sections, 124 entries. See sample pages (PDF, 359 KB)
Precautions during operation7 topics
- Before starting engine
- Operating machine
- Transportation
- Battery
- Towing
- Lifting operation
- Window washer fluid
Precautions for maintenance2 topics
- Before carrying out maintenance
- During maintenance
General view2 topics
- General view of machine
- General view of controls and gauges
Explanation of components13 topics
- Machine monitor
- Switches
- Control levers and pedals
- Engine hood
- Front window (Machine equipped with cab)
- Sliding door (Machine equipped with cab)
- Hammer for emergency escape (Machine equipped with cab)
- Fuses
- Fusible link
- Cap, cover with lock
- Manual storing space
- Tool box
- Dust indicator
Operation20 topics
- Check before starting engine
- Starting engine
- Operations and checks after starting engine
- Moving machine off
- Steering machine
- Stopping machine
- Swinging
- Operation of work equipment
- Prohibitions for operation
- Precautions for operation
- Precautions when traveling up or down hills
- How to escape from mud
- Work possible using hydraulic excavator
- Replacement of bucket
- Parking machine
- Check after finishing work
- Stopping engine
- Check after stopping engine
- Locking
- Handling rubber shoes (Rubber shoes only)
Transportation4 topics
- Loading, unloading work
- Method of lifting machine
- Precautions for loading
- Precautions for transportation
Cold weather operation4 topics
- Precautions for low temperature
- Precautions after completion of work
- Preparing the cab heater (Machine equipped with cab)
- After cold weather
Long-term storage3 topics
- Before storage
- During storage
- After storage
Troubleshooting5 topics
- Phenomena that are not failures
- Method of towing machine
- Precautions on particular jobsites
- If battery is discharged
- Other trouble
Outlines of service3 topics
- Outline of oil, fuel, coolant
- Outline of electric system
- Outline of hydraulic system
Standard tightening torques for bolts and nuts2 topics
- Introduction of necessary tools
- Torque list
Maintenance schedule chart1 topic
- Maintenance interval when using hydraulic breaker
Service Procedure8 topics
- Initial 250 hours service
- When required
- Check before starting
- Every 100 hours service
- Every 250 hours service
- Every 500 hours service
- Every 1000 hours service
- Every 2000 hours service
Show all 31 sections
General precautions2 topics
- Precautions related to safety
- Precautions when installing attachments
Handling bucket with hook3 topics
- Checking for damage to bucket with hook
- Prohibited operations
- Precautions during operations
Using seat belt1 topic
- Seat belt
Operation of car radio (Machine equipped with cab)4 topics
- Explanation of controls
- Operation method
- Precautions for use
- Specifications
Operation of window washer (Machine equipped with cab)2 topics
- Operation of window washer
- Check and refilling of window washer fluid
Handling of 2-way piping2 topics
- Selection of 1-way and 2-way
- Operation of pedal
Introduction of attachments5 topics
- Specifications and uses
- Combinations table of attachments
- Precautions for operating with hydraulic breaker
- Operation of quick breaker arm
- Handling power tilt, mechanical angle blade
Inside this manual
Real pages from this operation & maintenance manual (240 pages). Open the sample pages (PDF, 358 KB)
- Controls and operation, page 84: 12. OPERATION
- Maintenance, page 141: 23. MAINTENANCE SCHEDULE CHART
- Specifications, page 186: Rubber shoe
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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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.
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, 240 pages
Quantity one is the manual described above.
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Other editions and similar models
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).