Link-Belt Excavator 240X2-MH Shop Manual

Description

Contents:
Main Unit (240X2-MH)
Specifications
Overall
Main Data
Performance
Complete Machine Dimensions
Main Unit Dimensions.
Engine.
Hydraulic Device.
Control Valve
Cooling System.
Operating Device
Swing Units.
Travel Lower Body
Work Unit
Hydraulic Cylinder.
Coolant and Oil Capacities
Hydraulic Oil Filter.
Overall View
Overall View
Standard Arm (5.00 m)
Work Range Diagram
Work Range Diagram
Standard Arm (5.00 m)
Hydraulic
Hydraulic Equipment Layout
Overall View
Pump Chamber Hydraulic Equipment Layout
Elevator Section Hydraulic Equipment Layout Diagram
Dynamo-related Hydraulic Equipment Layout Diagram
(for Japan and North America)
Port Diagrams
Pump
1. Hydraulic Pump
Valves
1. Control Valve
2. Solenoid Valve for Elevator Emergency Lowering.
3. Elevator Control Solenoid Valve
4. Reducing Valve (for interference prevention)
(for Japan, North America, general export)
5. Check Valve.
Manifolds
1. Elevator Control Manifold.
2. Manifold for Mode Switchover Solenoid Valve.
Pilot Hose Connection Diagram
Pilot P and T Lines
Pilot Control Line (cab/frame)
Pilot Control Line (cab)
Pilot Control Line (frame).
Pilot Control Line (2-way selector valve)
Pilot Control Line (4-way selector valve) (for Japan).
Function List
Function Table.
Control Milli-amp List
Control Milli-amp
Magnet Circuit
Magnet Circuit (for Japan, North America)
Elevator Circuit
Elevator Circuit
Option Circuits
2nd Option Circuit
2 Pumps Flow Circuit.
Main Equipment Structure and Operation Explanation
Pump
1. Hydraulic Pump
(1) Structure and operation principles
(2) Hydraulic pump internal structure diagram.
2. Gear Pump.
(1) Gear pump internal structure diagram
(2) Explanations of structures and operations
1
Electrical
Electrical Equipment Layout Diagram
Overall View
1. Main Unit Right Side Layout Diagram (pump chamber)
2. Electrical Parts and Wiring (cab)
3. Electrical Parts and Wiring (interference prevention)
(for Japan, North America, general export)
4. Power Supply Unit: Lifting Magnet (for Japan, North America)
Stand Alone Parts Diagram
Electrical Connectors Wiring Diagram
Main Frame
1. Main Frame
Cab
1. Cab Main Harness
2. Cab Sub-harness.
Console
1. Console Right Harness
2. Console Left Harness
Interference Prevention (cab) (for Japan, North America, general e
1. Interference Prevention (cab)
Connector Installation Fitting (for Japan, North America)
Electrical Parts and Wiring Assembly Diagram
Main Frame
Cab
Interference Prevention (for Japan, North America, general export)
Lifting Magnet (for Japan, North America).
Explanation of Functions and Operations
Electrical Function List.
Engine Speed Control
1. Characteristics (during magnet mode) (for North America)
2. Idling Control (auto/one-touch) (for Japan, North America).
Pump Control
1. Pump Horsepower Boost Control
Operation Explanation
Magnet Control Circuit (for Japan, North America)
1. Operation Flow.
2. Magnet Control Circuit (for Japan, North America)
Service Support
Screen Display List
1. Model Setting.
Maintenance
Pressure Measurement and Adjustment Procedures
Pressure Measuring Ports
Pressure Measurement and Adjustment Procedures
1. Main Pressure Measurement.
2. Pilot Pressure Measurement
3. Negative Control Pressure Measurement
Power Generation Line, Elevator
2nd option pressure measurement
A. Dynamo motor pressure measurement (for North America)
B. Elevator cab pressure measurement (2nd option pressure measurement).
Dynamo Motor Line Relief Pressure Adjustment
(for Japan, North America)
Hydraulic Pump Flow Measurement Procedures
Preparations
Work Preparations.
Air Bleed Procedures
Hydraulic Pump.
Interference Prevention Device
Functions
System Function.
Interference Prevention System Operation
Temporary Cancellation Function.
Handling Abnormalities.
Circuit Explanations
Boom (up) Interference Prevention Function
Elevator Cab Interference Prevention Function
Arm (in) Interference Prevention Function
Temporary Cancellation Function.
Handling Abnormalities (shut-off function)
Handling Abnormalities (redundancy function).
Setting Method
Default Settings Method
Settings Confirmation
Operation Confirmation for Cab Interference Prevention Function
Operation Confirmation of Emergency Cancellation
Troubleshooting
Abnormality Display
1. Angle Sensor Troubleshooting
2. Proportional Valve Troubleshooting
3. Abnormal Proximity Troubleshooting
Measurement Jigs for Interference Prevention.
Lifting Magnet
Operator’s Manual
Introduction
Important Safety Items
1. Safety
2. Specifications
2-1. Magnet Specifications Machine Summary
3. Operating Methods
3-1. Operation Switches and Magnet Operation
3-2. Actual Operation.
3-3. Cautions during Operation
3-4. Cautions during Cleaning
4. Inspection
4-1. Daily Inspection – (inspection before starting operation)
4-2. Periodic Inspection
5. Monitor (touch panel) Layered Structure
5-1. Monitor (touch panel) Layered Structure
6. Monitor (touch panel) Operation Method
Magnet mode
Lifting Magnet
Maintenance Manual
1. Magnet Device.
2. Electrical Schematic Diagram
3. Dynamo
3-1. Dynamo Specifications
3-2. Dynamo Structure
3-3. Dynamo Component Parts
4. Control Board
4-1. Layout of Control Board Component Equipment.
4-2. Control Board Component Equipment.
4-3. Control Board Schematic Diagram (1).
4-4. Control Board Schematic Diagram (2).
4-5. Control Board Schematic Diagram (3).
5. Inspection
6. Monitor (touch panel) Layered Structure
7. Monitor (touch panel) Operating Methods
Maintenance mode
8. Troubleshooting
8-1. Attention and Warning Function Table
8-2. Response When Attention Trouble Occurs
8-3. Response to Trouble When Warning Trouble Occurs.
9. Investigation of Causes of Load-side Abnormalities
10. IGBT Module Abnormality Judgment.
11. Investigation of Causes of Abnormalities with
Dynamo Output Voltage
12. Basic Settings
13. Operation Method Settings