Komatsu PC8000-6 Diesel Service Manual Hydraulic Excavator SG PC8000-6 SN 12046-

Factory Service Manual For Komatsu Hydraulic Excavator. Manual Contains Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.

Format: PDF
Language: English
Pages: 610
Issued: october 2005
Bookmarks: Yes
Searchable: Yes

Model

Komatsu Hydraulic Excavator
PC8000-6 Diesel
SN 112046 And Up

Contents

SAFETY – FOREWORD
TECHNICAL DATA (LEAFLET)
ASSEMBLY PROCEDURE (BROCHURE)
-MAIN ASSEMBLY GROUPS
Superstructure
Undercarriage
Attachment
-DRIVE
Engine And PTO Mounts
Drive Shaft
Flexible Coupling
Air Filter
Fan Drive And Radiator Assembly
Radiator Fan Drive Speed Adjustment
Pump Distributor Gearbox (PTO)
Pump-Spline Lubrication
PTP Lubrication And Cooling
Hydraulic Pumps – Location, Drive Speed And Flow Rates
-HYDRAULIC OIL TANK
Main Oil Tank, Location Of Switches, Sensors Etc.
Suction Oil Tank With Strainers
Return Oil Collector Tube With Strainer
Back Pressure Valve
Transfer Pump
Return And Leak Oil Filter
Breather Filter
-HYDRAULIC OIL COOLING
General
Function Of The Hydraulic Oil Cooling Circuit
Back Pressure Valve
Fan Drive Of Standard Cooler
Fan Drive Of Additional Cooler
-CONTROLLING
Control and filter panel location of components (valves, switches, sensors etc.)
Pilot Pressure Supply and Adjustments
Remote control valves arrangement
Function principle of the Electro-Hydraulic- Proportional Control
Potentiometer Control (Lever, Joy Stick)
Potentiometer Control (Pedal)
Proportional amplifier module, Type A (for swing brake only)
Proportional amplifier module, Type B (for Boom, Stick, Bucket, Swing and Travel)
Ramp Tune Module (Analogue command value module for Boom, Stick, Travel and Swing function)
Adjustments of Amplifier Modules (General)
Adjusting the Amplifiers Type B
Adjusting the Amplifiers Type A
Adjusting the Ramp Tune Module
-COMPONENTS-HYDRAULIC
Main Control Blocks And High Pressure Filter
Distributor Manifold – Location Of Restrictor Blocks
Restrictor Block With Pressure Relief Valve (Type 131)
Restrictor Block With Pressure Relief Valve (Type 132)
Anti Cavitation Valve Block (Type 109)
Anti Cavitation Valve Block (Type 142 – 145)
Remote Control Valves
Directional Solenoid Valves (Three Positions / 4-Ways)
Proportional Solenoid Valves
High Pressure Filter
Control Blocks And Valves
Travel Brake Valve
Pressure Reducing Valve
Directional Solenoid Valves (Two Positions / 4-Ways)
Pressure Increasing Valve
Hydraulic Cylinder
-MAIN HYDRAULIC PUMPS AND PUMP REGULATION
Main Pumps
Electronic Pump Regulation System
Hydraulic Constant Regulation System
Determination Of The Peak Point
Engine Speed Sensor (Pick Up)
-OPERATING HYDRAULIC
Hydraulic For The Attachment Cylinder FSA And BHA
Hydraulic For The Swing Circuit
Hydraulic For The Travel Circuit
-HYDRAULIC TRACK TENSIONING SYSTEM
Functional Description
Pressure Increasing Valve
Tensioning Cylinder
Adjustments / Checks
Functional Test
-HYDRAULIC OPERATED ACCESS LADDER
General
Function Of Hydraulically Operated Access Ladder
Adjustments / Checks
-CENTRAL REFILLING SYSTEM
General
Function
-HINTS FOR THE HYDRAULIC CIRCUIT DIAGRAM
Symbols
-HINTS FOR THE ELECTRIC CIRCUIT DIAGRAM
Designation Of Electrical Devices
Symbols
General Information
Reading A Circuit Diagram
-ELECTRONIC CONTROL SYSTEM – ECS
General Design of the ECS-T System
How to Proceed due Maintenance and Installation
Front Connector Arrangement
Power Supply
Function Explanations With Electrical Diagram
Hints For Reading The Functional Flow Charts
-LUBRICATION SYSTEMS
General Function
Oscillation Cylinder And Control Block
Adjustments
One Line System
Electrical Function
Capacitive Analog Sensor For Lubricant Level Monitor
Adjustments
Function Pinion Type (Dummy Wheel) System
Electrical Function (Dummy Wheel) System
Capacitive Analog Sensor For Lubricant Level Monitor
Components
APPENDIX

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