Komatsu PC20R-8 User Manual

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76

FUSES AND RELAYS

3.4.1.2 MAIN FUSE

POSITION COLOUR CAPACITY (A) INVOLVED CIRCUIT

1 – 60 System main fuse

RWA09020

1

Table of Contents

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 MOTOR SERIAL NUMBER (for PC20R Only)10
- SWING REDUCTION GEAR SERIAL NUMBER (for PC27R Only)10
- 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 Subjected29
General Precautions30
- General Safety Rules30
- Safety Devices and Guards30
- Clothing and Personal Protection Items30
- Unauthorized Modifications31
- Leaving the Operator's Seat31
- Getting on and off the Machine32
- Preventing Fires Due to Fuel and Oil32
- Preventing Burns33
- Preventing Damage Due to Asbestos Powder33
- Preventing Damage Caused by the Work Equipment34
- Fire Extinguishers and First Aid Kit34
- Precautions Concerning the Cab Structure34
- Precautions Concerning the Equipment34
Precautions to be Taken before Starting the Engine35
- Safety on the Work Site35
- Fire Prevention35
- Precautions to be Taken for the Operator's Cab35
- Room Ventilation36
- Precautions to be Taken for the Lights36
- Cleaning the Windows - Checking the Windshield Wiper Blades36
Precautions to be Taken When Working37
- Starting the Engine37
- Check the Direction before Starting the Machine37
- Checks for Travelling in Reverse37
- Moving the Machine38
- Moving on Slopes39
- Working on Slopes40
- Unauthorized Operations40
- Preventing Electrocution41
- Visibility42
- Working on Icy or Snow-Covered Surfaces42
- Preventing Damage Caused by the Work Equipment42
- Working on Loose Ground42
- Parking the Machine43
Transporting the Machine on Motor Vehicles44
- Loading and Unloading44
- Transport44
Battery45
- Preventing Risks that May be Due to the Battery45
- Starting with Booster Cables45
Precautions for the Removal46
Precautions for Maintenance47
- Warning Plates47
- Tools47
- Personnel47
- Equipment48
- Working under the Machine48
- Cleaning the Machine48
- Use of the Engine During Maintenance Operations49
- Periodical Change of the Parts that Are Critical for Safety49
- Stop the Engine before Carrying out any Maintenance Operation49
  - Or Inspection49
- Rules to be Followed During Fuel or Oil Topping up50
- Checking the Coolant Level in the Radiator50
- Using Lamps50
- Precautions Concerning the Battery and the Alternator51
- Precautions Concerning the Starter51
- Handling High-Pressure Pipes52
- Precautions to be Taken When Handling High-Pressure Oil52
- Precautions for Maintenance Operations at High Temperatures and High Pressure52
- Cooling Fan and Belt53
- Waste Materials53
- PRECAUTIONS for the USE of the Synthetic Biodegradable Oil Type HEES53
Safety Locks56
- Machine Locks56
General Views57
- General View of the Machine with Cab57
- General View of the Machine with Canopy58
- General View of the Driver's Seat59
Instruments and Controls60
- Instruments60
- Warning Lights62
- Switches and Push Buttons64
- Ignition Switch65
- Electrical Accessories67
- Machine Controls69
Fuses and Relays77
- Fuses77
  - Equipment Fuses77
  - Main Fuse78
- Relays79
Guards and Driver's Seat80
- Engine Hood80
- Right Counterweight81
- Canopy81
- Cab82
- Ventilation and Heating85
- Seat86
- Safety Belt86
- Emergency Exit87
- Technical Documentation Case87
- Fire Extinguisher88
- First Aid Kit88
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
Long Periods of Inactivity111
- Before the Period of Inactivity111
- During the Period of Inactivity112
- After the Period of Inactivity112
Troubleshooting113
- Occurrences that Are Not Failures113
- How to Remove the Machine113
- After the Fuel Has Run out114
- If the Battery Is down114
  - Starting with Booster Cables115
- Other Troubles116
Maintenance119
Guide to Maintenance120
Maintenance Notes122
- Notes Regarding the Engine122
- Notes Regarding the Hydraulic System123
- Notes Regarding the Electrical System124
- Notes Regarding Lubrication124
- Parts Subject to Wear that Periodically Need Changing125
Fuel, Coolant and Lubricants126
- Homologated Hees Synthetic Biodegradable Lubricants128
Driving Torques for Screws and Nuts129
- Standard Driving Torques129
- Specific Driving Torques129
Lubrication130
- Lubrication Diagram130
Periodical Change of the Components that Are Connected with Safety131
- Critical Parts for Safety132
Maintenance Plan135
- Maintenance Every 100 Hours of Operation136
- Maintenance Every 250 Hours of Operation136
- Maintenance Every 1000 Hours of Operation137
- Maintenance Every 2000 Hours of Operation137
- When Required138
- Maintenance Intervals in Case of Use of the Demolition Hammer (Breaker)149
  - Changing the Hydraulic Oil Filter149
  - Changing the Hydraulic Oil149
- Checks before Starting150
- Maintenance after the First 50 Hours of Operation154
  - (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)154
- Maintenance Every 100 Hours of Operation155
  - Lubricating the Joints and the Ball-Bearing Ring155
- Maintenance after the First 250 Hours of Operation157
- Maintenance Every 250 Hours of Operation157
- Maintenance after the First 500 Hours of Operation161
  - (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)161
- Maintenance Every 500 Hours of Operation161
- Maintenance Every 1000 Hours of Operation166
  - Changing the Oil in the Travel Reduction Gears166
- Maintenance Every 2000 Hours of Operation167
Technical Specifications173
Technical Data174
- STANDARD OVERALL DIMENSIONS (for Model PC20R Only)174
- Technical Characteristics Pc20R175
- STANDARD OVERALL DIMENSIONS (for Model PC27R Only)176
- Technical Characteristics Pc27R177
- LIFTING CAPACITY with CAB (for Model PC20R Only)178
- LIFTING CAPACITY with CANOPY (for Model PC20R Only)179
- LIFTING CAPACITY with CAB (for Model PC27R Only)180
- LIFTING CAPACITY with CANOPY (for Model PC27R Only)181
6.1 Authorized Optional Equipment184
Authorized Optional Equipment184
- Precautions Regarding Safety184
- Precautions Regarding the Installation of Equipment185
- Characteristics of the Optional Equipment186
Arrangement for the Installation of the Demolition Hammer (Breaker)187
- Description and Control187
- Use of the Demolition Hammer and Rules to be Observed187
- Installing and Removing the Demolition Hammer191
  - Installing the Hammer191
  - Removing the Hammer192
- Maintenance192
Arrangement for the Operation of Optional Equipment193
- Selection Valve (1)193
- Control Pedal (2)194
- Assemblying and Connecting the Equipment195
- Maintenance196

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Komatsu PC20R-8 Specifications

General

Brand	Komatsu
Model	PC20R-8
Category	Excavators
Language	English

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