Komatsu PC20R-8 Mini Excavator Manuals

Manuals and User Guides for Komatsu PC20R-8 Mini Excavator. We have 3 Komatsu PC20R-8 Mini Excavator manuals available for free PDF download: Shop Manual, Operation & Maintenance Manual

Komatsu PC20R-8 Shop Manual (298 pages)

Hydraulic Excavator

Brand: Komatsu | Category: Excavators | Size: 7 MB

Structure and Function

19
- Table of Contents
  19
- Power Train
  20
- Swing Circle
  22
- Swing Machinery
  24
- Final Drive
  25
- Track Frame
  26
- Recoil Spring
  28
- Carrier Roller
  29
- Track Roller
  29
- Steel Shoe
  30
- Hydraulic System
  31
- Hydraulic Circuit Diagram
  35
- Hydraulic Pump
  42
- Control Valve
  62
- Clss
  70
- Swivel Joint
  87
- Swing Motor
  88
- Travel Motor
  92
- Cylinder
  95
- Accumulator
  99
- PPC Valve
  100
- PPC Valve
  104
Testing and Adjustments

117
Removal and Installation

183
- How to Read the Manual
  185
- Precautions to be Taken
  186
- Special Tools
  187
  - Removal
    189
  - Installation
    189
  - Removal
    190
  - Installation
    191
- Injection Pump
  191
  - Removal
    191
  - Installation
    192
- Nozzle Holder
  193
  - Removal
    193
  - Installation
    193
- Water Coolant Pump
  194
  - Installation
    195
- Cylinder Head
  197
  - Removal
    198
- Engine Hood
  198
  - Installation
    198
  - Installation
    199
- Heating Fan
  202
  - Removal
    203
- Counterweight
  203
  - Removal
    204
  - Removal
    205
- Hydraulic Oil Tank
  206
  - Removal
    207
  - Removal
    209
- Engine-Pump Group
  211
  - Removal
    212
  - Removal
    213
- Engine-Pump Coupling
  213
  - Removal
    214
  - Installation
    214
  - Removal
    215
  - Installation
    215
  - Installation
    217
- Control Valve
  217
- Left-Hand Ppc Valve (Arm-Bucket)
  218
- Right-Hand Ppc Valve (Boom-Bucket)
  219
  - Removal
    219
  - Installation
    219
- Servocontrol Solenoid Group
  220
  - Removal
    220
  - Installation
    220
- Platform
  221
  - Removal
    221
  - Removal
    224
- Swing Machinery
  226
  - Removal
    228
- Revolving Frame
  228
  - Removal
    230
- Swing Circle
  230
  - Installation
    230
- Rubber Track Shoes
  231
  - Removal
    231
  - Installation
    231
- Steel Track-Shoes
  232
  - Removal
    232
  - Installation
    232
- Sprocket Wheel
  233
  - Removal
    233
  - Installation
    233
- Final Drive
  234
  - Installation
    235
- Spring Recoil and Thrust Cylinder Groups
  236
  - Disassembly
    236
  - Assembly
    236
- Idler
  237
- Track Rollers
  238
  - Removal
    238
  - Installation
    238
- Boom Cylinder
  239
  - Removal
    239
  - Installation
    240
- Arm Cylinder
  241
  - Removal
    241
  - Installation
    241
- Bucket Cylinder
  242
  - Removal
    242
  - Installation
    242
- Boom Swing Cylinder
  244
  - Removal
    245
- Blade Cylinder
  245
  - Installation
    245
  - Installation
    253
- Arm Assembly
  257
  - Removal
    257
  - Installation
    257
- Boom
  258
  - Removal
    258
- Boom Swing Support
  260
  - Removal
    260
  - Installation
    260
Standard Maintenance

265
- Swing Circle
  266
- Swing Machinery
  267
- Final Drive
  268
- Sprocket
  269
- Track Frame and Recoil Spring
  270
- Idler
  271
- Carrier Roller
  272
- Track Roller
  273
- Track Shoe
  274
- Hydraulic Pump
  276
- Control Valve
  278
- Swivel Joint
  284
- Swing Motor
  285
- Travel Motor
  288
- PPC Valve (for Boom, Arm, Bucket, Swing)
  290
- PPC Valve (for Hammer)
  291
- Cylinder
  292
- Work Equipment
  294

Komatsu PC20R-8 Operation & Maintenance Manual (196 pages)

hydraulic excavator

Brand: Komatsu | Category: Excavators | Size: 4 MB

Foreword

3
Information on Safety

4
Introduction

6
- Intended Uses
  6
- Improper or Unauthorized Uses
  6
- Main Characteristics
  7
- Running-In
  7
Product Identification

8
Safety and Accident Prevention

21
Safety, Noise and Vibration Plates

22
General Precautions

30
Precautions to be Taken before Starting the Engine

35
Precautions to be Taken When Working

37
- Starting the Engine
  37
- Check the Direction before Starting the Machine
  37
- Checks for Travelling in Reverse
  37
- Moving the Machine
  38
- Moving on Slopes
  39
- Working on Slopes
  40
- Unauthorized Operations
  40
- Preventing Electrocution
  41
- Visibility
  42
- Working on Icy or Snow-Covered Surfaces
  42
- Preventing Damage Caused by the Work Equipment
  42
- Working on Loose Ground
  42
- Parking the Machine
  43
Transporting the Machine on Motor Vehicles

44
- Loading and Unloading
  44
- Transport
  44
Battery

45
- Preventing Risks that May be Due to the Battery
  45
- Starting with Booster Cables
  45
Precautions for the Removal

46
Precautions for Maintenance

47
Safety Locks

56
- Machine Locks
  56
General Views

57
Instruments and Controls

60
- Instruments
  60
- Warning Lights
  62
- Switches and Push Buttons
  64
- Ignition Switch
  65
- Electrical Accessories
  67
- Machine Controls
  69
Fuses and Relays

77
- Fuses
  77
  - Equipment Fuses
    77
  - Main Fuse
    78
- Relays
  79
Guards and Driver's Seat

80
- Engine Hood
  80
- Right Counterweight
  81
- Canopy
  81
- Cab
  82
- Ventilation and Heating
  85
- Seat
  86
- Safety Belt
  86
- Emergency Exit
  87
- Technical Documentation Case
  87
- Fire Extinguisher
  88
- First Aid Kit
  88
Use of the Machine

89
- Checks before Starting the Engine
  89
  - Visual Checks
    89
  - Daily Checks
    89
  - Operational Checks
    90
- Starting the Engine
  91
  - Starting with Warm Engine or in Temperate Climates
    91
  - Starting with Cold Engine or in Cold Climates
    92
- Warming the Engine
  93
- Heating the Hydraulic Oil
  93
- How to Move the Machine
  93
  - Steering (Changing Direction)
    95
  - Moving on Slopes
    96
  - Maximum Immersion Depth
    97
Parking the Machine

98
- Parking on Level Ground
  98
- Parking on Slopes
  99
Stopping the Engine

100
Transporting the Machine on Motor Vehicles

101
- Loading and Unloading the Machine
  101
- Transport
  102
Lifting the Machine

103
Precautions to be Taken in the Cold Season

104
- Fuel and Lubricants
  104
- Coolant
  104
- Battery
  104
- Other Precautions
  105
- Precautions to be Taken at the End of Work
  105
Precautions to be Taken in the Warm Season

106
Using the Work Equipment

107
- Organizing the Work Area
  107
- Positioning the Machine for Digging Operations
  108
- Digging Method
  109
- Changing the Bucket
  110
Long Periods of Inactivity

111
Troubleshooting

113
- Occurrences that Are Not Failures
  113
- How to Remove the Machine
  113
- After the Fuel Has Run out
  114
- If the Battery Is down
  114
  - Starting with Booster Cables
    115
- Other Troubles
  116
  - Electrical Circuit
    116
  - Hydraulic System
    116
  - Engine
    117
Maintenance

119
Guide to Maintenance

120
Maintenance Notes

122
- Notes Regarding the Engine
  122
  - Engine Oil
    122
  - Coolant
    122
  - Fuel
    123
- Notes Regarding the Hydraulic System
  123
- Notes Regarding the Electrical System
  124
- Notes Regarding Lubrication
  124
- Parts Subject to Wear that Periodically Need Changing
  125
Fuel, Coolant and Lubricants

126
- Homologated Hees Synthetic Biodegradable Lubricants
  128
Driving Torques for Screws and Nuts

129
- Standard Driving Torques
  129
- Specific Driving Torques
  129
Lubrication

130
- Lubrication Diagram
  130
Periodical Change of the Components that Are Connected with Safety

131
- Critical Parts for Safety
  132
Maintenance Plan

135
Technical Specifications

173
Technical Data

174
6.1 Authorized Optional Equipment

184
Authorized Optional Equipment

184
Arrangement for the Installation of the Demolition Hammer (Breaker)

187
- Description and Control
  187
- Use of the Demolition Hammer and Rules to be Observed
  187
- Installing and Removing the Demolition Hammer
  191
  - Installing the Hammer
    191
  - Removing the Hammer
    192
- Maintenance
  192
Arrangement for the Operation of Optional Equipment

193
- Selection Valve (1)
  193
- Control Pedal (2)
  194
- Assemblying and Connecting the Equipment
  195
- Maintenance
  196

Komatsu PC20R-8 Shop Manual (32 pages)

Hydraulic Excavator

Brand: Komatsu | Category: Excavators | Size: 0 MB

Komatsu Categories

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More Komatsu Manuals

Komatsu PC20R-8 Mini Excavator Manuals

Komatsu PC20R-8 Shop Manual (298 pages)

Table of Contents

Structure and Function

Testing and Adjustments

Removal and Installation

Standard Maintenance

Komatsu PC20R-8 Operation & Maintenance Manual (196 pages)

Table of Contents

Foreword

Information on Safety

Introduction

Product Identification

Safety and Accident Prevention

Safety, Noise and Vibration Plates

General Precautions

Precautions to be Taken before Starting the Engine

Precautions to be Taken When Working

Transporting the Machine on Motor Vehicles

Battery

Precautions for the Removal

Precautions for Maintenance

Safety Locks

General Views

Instruments and Controls

Fuses and Relays

Guards and Driver's Seat

Use of the Machine

Parking the Machine

Stopping the Engine

Transporting the Machine on Motor Vehicles

Lifting the Machine

Precautions to be Taken in the Cold Season

Precautions to be Taken in the Warm Season

Using the Work Equipment

Long Periods of Inactivity

Troubleshooting

Maintenance

Guide to Maintenance

Maintenance Notes

Fuel, Coolant and Lubricants

Driving Torques for Screws and Nuts

Lubrication

Periodical Change of the Components that Are Connected with Safety

Maintenance Plan

Technical Specifications

Technical Data

6.1 Authorized Optional Equipment

Authorized Optional Equipment

Arrangement for the Installation of the Demolition Hammer (Breaker)

Arrangement for the Operation of Optional Equipment

Komatsu PC20R-8 Shop Manual (32 pages)

Table of Contents

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