Komatsu PC300-8 Hydraulic Service Repair Manual

Komatsu PC300-8 Hydraulic Service Repair Manual

Komatsu PC300-8 Hydraulic Service Repair Manual

Komatsu PC300-8, PC300LC-8 PC350LC-8 Hydraulic Excavator Service Repair Manual

HYDRAULIC EXCAVATOR
PC300-8 PC300LC-8 PC350-8 PC350LC-8

Machine model Serial number
PC300-8 60001 and up
PC300LC-8 60001 and up
PC350-8 60001 and up
PC350LC-8 60001 and up

Table of contents
00 Index and foreword
Index
Composition of shop manual
Table of contents
Foreword and general information
Safety notice
How to read the shop manual
Explanation of terms for maintenance standard
Handling of electric equipment and hydraulic component
Handling of connectors newly used for engines
How to read electric wire code
Precautions when carrying out operation
Method of disassembling and connecting push-pull type coupler
Standard tightening torque table
Conversion table
01 Specification
Specification and technical data
Specification dimension drawings
Dimensions
Working ranges
Specifications
Weight table
Table of fuel, coolant and lubricants
10 Structure, function and maintenance standard
Engine and cooling system
Engine related parts
Radiator, oil cooler and aftercooler
Power train
Power train
Swing circle
Swing machinery
Final drive
Sprocket
Undercarriage and frame
Track frame and recoil spring
Idler
Carrier roller
Track roller.
Track shoe
Hydraulic system, Part 1
Hydraulic equipment layout drawing
Hydraulic tank and filter
Hydraulic pump
Hydraulic system, Part 2
Control valve
CLSS
Outline of CLSS
Basic principle
Functions and operation by valve
Hydraulic circuit diagram and the name of valves
Unload valve.

Komatsu PC300-8, PC300LC-8 PC350LC-8 Hydraulic Excavator Service Repair Manual
Komatsu PC300-8, PC300LC-8 PC350LC-8 Hydraulic Excavator Service Repair Manual
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Komatsu PC300-8 Hydraulic Service Repair Manual

Introduction of LS pressure 22
LS bypass plug 23
Pressure compensation valve 24
Pressure compensation valve inner shuttle valve 27
Boom regeneration circuit 29
Arm regeneration circuit 31
Merge-divider valve 33
LS select valve 35
Self pressure reducing valve 36
Travel junction valve 39
Travel PPC shuttle valve 41
Boom drift prevention valve 43
Arm drift prevention valve 46
Quick return valve 50
Lift check valve 52
Main relief valve 53
2- stage safety-suction valve 54
Variable pressure compensation valve 56
Attachment circuit selector valve 58
Hydraulic drift prevention valve 60
Hydraulic system, Part 3 SEN01995-00
Valve control 2
PPC valve 4
Solenoid valve 26
PPC accumulator 28
Return oil filter 29
Center swivel joint 30
Travel motor 31
Swing motor 43
Hydraulic cylinder 52
Work equipment SEN01996-01
Work equipment 2
Dimensions of components 4
Cab and its attachments SEN01997-00
Air conditioner piping 2
Electrical system SEN01998-02
Engine control 2
Electronic control system 11
Monitor system 36
Sensor 63
KOMTRAX system 66

20 Standard value table
Standard service value table SEN02624-02
Standard value table for engine related parts 2
Standard value table for chassis related parts 3

30 Testing and adjusting
Testing and adjusting, Part 1 SEN02625-03
Tools for testing, adjusting and troubleshooting 3
Sketches of special tools 7
Testing engine speed 8
Testing air boost pressure 9
Testing exhaust gas color 10
Adjusting valve clearance 12
Testing compression pressure 14

Komatsu PC300-8 Hydraulic Service Repair Manual

Excavator Service Repair Manual for Volvo, Doosan, Case, Komatsu, Kobelco, Hitachi, Hyundai, New holland, Terex, Bobcat, Caterpillar, Takeuchi, Kubota, Jcb,Complete Step-By-Step Instructions, Diagrams, Illustrations, Wiring Schematics, And Specifications To Completely Repair Your Vehicle With Ease!