Name: Komatsu PC12R-8
Brand: Komatsu
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THE MACHINE AND

ITS OPERATIONS

Foreword3
Information on Safety4
Introduction6
- Intended Uses6
- Improper or Unauthorized Uses6
- Main Characteristics7
- Running-In7
Product Identification8
- Machine Serial Number8
- Machine Identification Plate8
- Engine Serial Number and Exhaust Gas Emission Plate9
- Travel Reduction Gear Serial Number9
- Swing Reduction Gear Serial Number10
- Cab Serial Number10
- Serial Numbers and Dealer's Address11
- Table of Contents13
Safety and Accident Prevention21
Safety, Noise and Vibration Plates22
- Position of the Safety Plates22
- Pictograms and Relevant Meanings24
- Position of the Noise Plates on Machines with Cab28
- Position of the Noise Plates on Machines with Canopy29
- Vibrations to Which the Operator Is Subjected30
General Precautions31
- General Safety Rules31
- Safety Devices and Guards31
- Clothing and Personal Protection Items31
- Unauthorized Modifications32
- Leaving the Operator's Seat32
- Getting on and off the Machine33
- Preventing Fires Due to Fuel and Oil33
- Preventing Burns34
- Preventing Damage Due to Asbestos Powder34
- Preventing Damage Caused by the Work Equipment34
- Fire Extinguishers and First Aid Kit35
- Precautions Concerning the Cab Structure35
- Precautions Concerning the Equipment35
Precautions to be Taken before Starting the Engine36
- Safety on the Work Site36
- Fire Prevention36
- Precautions to be Taken for the Operator's Cab36
- Room Ventilation37
- Precautions to be Taken for the Lights37
- Cleaning the Windows - Checking the Windshield Wiper Blades37
Precautions to be Taken When Working38
- Starting the Engine38
- Check the Direction before Starting the Machine38
- Checks for Travelling in Reverse38
- Moving the Machine39
- Moving on Slopes40
- Working on Slopes41
- Unauthorized Operations41
- Preventing Electrocution42
- Visibility43
- Working on Icy or Snow-Covered Surfaces43
- Preventing Damage Caused by the Work Equipment43
- Working on Loose Ground43
- Parking the Machine44
Transporting the Machine on Motor Vehicles45
- Loading and Unloading45
- Transport45
Battery46
- Preventing Risks that May be Due to the Battery46
- Starting with Booster Cables46
Precautions for the Removal47
Precautions for Maintenance48
- Warning Plates48
- Tools48
- Personnel48
- Equipment49
- Working under the Machine49
- Cleaning the Machine49
- Use of the Engine During Maintenance Operations50
- Periodical Change of the Parts that Are Critical for Safety50
- Stop the Engine before Carrying out any Maintenance Operation50
  - Or Inspection50
- Rules to be Followed During Fuel or Oil Topping up51
- Checking the Coolant Level in the Radiator51
- Using Lamps51
- Precautions Concerning the Battery and the Alternator52
- Precautions Concerning the Starter52
- Handling High-Pressure Pipes53
- Precautions to be Taken When Handling High-Pressure Oil53
- Precautions for Maintenance Operations at High Temperatures53
  - And High Pressure53
- Cooling Fan and Belt54
- Waste Materials54
- PRECAUTIONS for the USE of the Synthetic Biodegradable Oil Type HEES54
The Machine and Its Operations55
Safety Locks56
- Machine Locks56
General Views57
- Front General View57
- General View of the Machine with Canopy58
- General View of the Driver's Seat59
Instruments and Controls60
- Instruments60
- Warning Lights61
- Switches and Push Buttons63
- Electrical Accessories66
- Machine Controls68
Fuses and Relays77
- Fuses77
- Relays78
Guards and Driver's Seat79
- Engine Hood79
- Canopy80
- Cab80
- Ventilation and Heating85
- Seat85
- Safety Belt86
- Emergency Exit86
- Technical Documentation Case87
- Fire Extinguisher87
- First Aid Kit87
Use of the Machine89
- Checks before Starting the Engine89
- Starting the Engine91
  - Starting with Warm Engine or in Temperate Climates91
  - Starting with Cold Engine or in Cold Climates92
- Warming the Engine93
- Heating the Hydraulic Oil93
- How to Move the Machine93
Parking the Machine98
- Parking on Level Ground98
- Parking on Slopes99
Stopping the Engine100
Transporting the Machine on Motor Vehicles101
- Loading and Unloading the Machine101
- Transport102
Lifting the Machine103
Precautions to be Taken in the Cold Season104
- Fuel and Lubricants104
- Coolant104
- Battery104
- Other Precautions105
- Precautions to be Taken at the End of Work105
Precautions to be Taken in the Warm Season106
Using the Work Equipment107
- Organizing the Work Area107
- Positioning the Machine for Digging Operations108
- Digging Method109
- Changing the Bucket110
Using the Machine with Variable Track Gauge111
- How to Use the Variable Track Gauge111
- Adjusting the Blade112
Long Periods of Inactivity113
- Before the Period of Inactivity113
- During the Period of Inactivity114
- After the Period of Inactivity114
Troubleshooting115
- Occurrences that Are Not Failures115
- How to Remove the Machine115
- After the Fuel Has Run out116
- If the Battery Is down116
  - Starting with Booster Cables117
- Other Troubles118
Maintenance121
Guide to Maintenance122
Maintenance Notes124
- Notes Regarding the Engine124
- Notes Regarding the Hydraulic System125
- Notes Regarding the Electrical System126
- Notes Regarding Lubrication126
- Parts Subject to Wear that Periodically Need Changing127
Fuel, Coolant and Lubricants128
- Homologated Hees Synthetic Biodegradable Lubricants130
Driving Torques for Screws and Nuts131
- Standard Driving Torques131
- Specific Driving Torques131
Lubrication132
- Lubrication Diagram Pc12R132
- Lubrication Diagram Pc12R Hs (Variable Track Gauge)133
- Lubrication Diagram Pc15R134
- Lubrication Diagram Pc15R Hs (Variable Track Gauge)135
Periodical Change of the Components Connected with Safety136
- Critical Parts for Safety137
Maintenance Plan140
- When Required143
- Maintenance Intervals in Case of Use of the Demolition Hammer (Breaker)154
  - Changing the Hydraulic Oil Filter154
  - Changing the Hydraulic Oil154
- Checks before Starting155
- Maintenance after the First 50 Hours of Operation158
  - (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)158
- Maintenance Every 100 Hours of Operation159
- Maintenance after the First 250 Hours of Operation163
- Maintenance Every 250 Hours of Operation163
- Maintenance after the First 500 Hours of Operation168
  - (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)168
- Maintenance Every 500 Hours of Operation168
- Maintenance Every 1000 Hours of Operation173
  - Changing the Oil in the Travel Reduction Gears173
- Maintenance Every 2000 Hours of Operation174
Technical Specifications177
Technical Data178
- Standard Overall Dimensions Pc12R178
- Technical Characteristics Pc12R179
- Standard Overall Dimensions Pc12R Hs (Variable Track Gauge)180
- Technical Characteristics Pc12R Hs (Variable Track Gauge)181
- Standard Overall Dimensions Pc15R182
- Technical Characteristics Pc15R183
- Standard Overall Dimensions Pc15R Hs (Variable Track Gauge)184
- Technical Characteristics Pc15R Hs (Variable Track Gauge)185
- Lifting Capacity with Raised Blade Pc12R186
- Lifting Capacity with Lowered Blade Pc12R187
- Lifting Capacity with Raised Blade Pc12R Hs (Variable Track Gauge Narrowed)188
- Lifting Capacity with Raised Blade Pc12R Hs189
  - (Variable Track Gauge Widened)189
- Lifting Capacity with Lowered Blade Pc12R Hs190
  - (Variable Track Gauge Narrowed)190
- Lifting Capacity with Lowered Blade Pc12R Hs191
  - (Variable Track Gauge Widened)191
- Lifting Capacity with Raised Blade Pc15R192
- Lifting Capacity Lowered Blade Pc15R193
- Lifting Capacity with Raised Blade Pc15R Hs194
  - (Variable Track Gauge Narrowed)194
- Lifting Capacity with Raised Blade Pc15R Hs195
  - (Variable Track Gauge Widened)195
- Lifting Capacity with Lowered Blade Pc15R Hs196
  - (Variable Track Gauge Narrowed)196
- Lifting Capacity with Lowered Blade Pc15R Hs197
  - (Variable Track Gauge Widened)197
6.1 Authorized Optional Equipment200
Authorized Optional Equipment200
- Precautions Regarding Safety200
- Precautions Regarding the Installation of Equipment201
- Characteristics of the Optional Equipment202
Arrangement for the Installation of the Demolition Hammer (Breaker)203
- Description and Control203
- Use of the Demolition Hammer and Rules to be Observed203
- Installing and Removing the Demolition Hammer207
  - Installing the Hammer207
  - Removing the Hammer208
- Maintenance208

Brand	Komatsu
Model	PC12R-8
Category	Excavators
Language	English

Komatsu PC12R-8 Service Manual

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