Komatsu Excavator PC240LL-10 workshop service manual

Description Komatsu Excavator PC240LL-10 workshop service manual

Komatsu Excavator Log Loader / Road Builder PC240LL-10 pdf workshop service & repair manual

Serial number A20601 and up

Technical data, specifications, testing, troubleshooting, maintenance, electrical diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
GENERAL
SPECIFICATIONS
Dimension Drawings
Dimensions
Working Ranges
Road Builder
Log Loader
Engine
Undercarriage
Hydraulic System
WEIGHT TABLE
FUEL, COOLANT AND LUBRICANTS
Lubrication Chart

STRUCTURE AND FUNCTION
ENGINE AND COOLING SYSTEM
Engine Related Parts
Radiator, Oil Cooler, Aftercooler, and Fuel Cooler
POWER TRAIN
Swing Machinery
Swing Circle
Final Drive
UNDERCARRIAGE AND FRAME
Track Frame and Idler Cushion
HYDRAULIC SYSTEM
Hydraulic Equipment Layout
Valve Control
Hydraulic Tank
Oil Filler Cap
CLSS
Structure of CLSS
Basic Principle
Main Pump
Operation
LS Valve
PC Valve
LS(PC)-EPC Valve
Control Valve
Functions and Operation by Valve
Hydraulic Circuit Diagram and Name of Valves
Unload Valve
Introduction of LS Pressure
LS By-Pass Plug
Pressure Compensation Valve
Shuttle Valve In Pressure Compensation Valve
Boom Regeneration Circuit
Arm Regeneration Circuit
Merge-Divider Valve
LS Selector Valve
Self-Pressure Reducing Valve
Travel Junction Valve
Travel PPC Shuttle Valve
Boom Hydraulic Drift Prevention Valve
Arm Hydraulic Drift Prevention Valve (Road Builder)
Arm Drift Prevention Valve (Log Loader)
Operation
Suction Safety Valve For Drift Prevention Valve

STANDARD VALUE TABLES
STANDARD SERVICE VALUE TABLES
Standard Value Table for Engine Related Parts
Standard Value Table for Chassis Related Parts
Engine Speed
Control Valve Spool Stroke
Control Lever Stroke
Operating Effort of Control Lever and Pedal
Hydraulic Pressure
Swing
Travel
Work Equipment
Performance in Combined Operation
Pump Swash Plate Sensor
Hydraulic Pump
Posture of Machine for Measuring Performance and Measurement Procedure
Control Valve: Spool Stroke
Swing 1: Overrun When Stopping Swing, Time Taken to Start Swing, Time Taken to Swing
Swing 2: Hydraulic Drift of Swing
Travel 1: Travel Speed, Idle Running (Without Load)
Travel 2: Travel Speed (Actual Run), Travel Deviation
Travel 3: Travel Deviation
Travel 4: Hydraulic Drift of Travel
Work Equipment 1: Hydraulic Drift of Work Equipment
Work Equipment 2: Boom Speed
Work Equipment 3: Arm Speed
Work Equipment 4: Bucket Speed/Heel Speed
Work Equipment 5: Boom Time Lag
Work Equipment 6: Arm Time Lag
Work Equipment 7: Bucket Time Lag

DIAGRAMS AND SCHEMATICS
Symbols in Hydraulic Circuit Diagrams
Hydraulic Circuit Diagram
ELECTRICAL SYSTEM
Symbols in Electrical Circuit Diagrams
Air Conditioner Electrical Circuit Diagram
Electrical Control System Diagram
Electrical Circuit Diagram
Electrical Circuit Diagram - Log Loader Unique
Connector List and Stereogram
Chassis
Operators Compartment
Engine Compartment

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