Link Belt 300X4 Excavator Service Manual
On a 300X4 that spends its days digging foundations, loading trucks, or trenching in rough sites, this service manual is what I’d keep open on the bench or tablet. It walks you through how to trace a fault logically, strip and reassemble components in the right order, and verify adjustments before you send the machine back into the dirt. For example, if the boom starts drifting down under load, this is what I’d use to step through the hydraulic checks, isolate whether it’s a cylinder, valve, or control issue, and confirm the fix with proper testing.
Applications & Use Cases
- Systematic troubleshooting of hydraulic, swing, and travel complaints by following step‑by‑step diagnostic flows.
- Guided disassembly/assembly so you don’t miss seals, shims, or alignment steps on major components.
- Setting and verifying adjustments on controls and linkages after repairs or component replacement.
- Planning shop workflow by knowing what has to come off first and what special tools you’ll really need.
- Field repairs where you need clear checks and test points to decide repair vs. replace without guessing.
FAQ
Q: Can I use this manual on a tablet in the field?
A: Yes, it’s practical to keep it on a tablet so you can zoom diagrams and search procedures right at the machine.
Q: Is it worth printing sections?
A: Many techs print only the pages for the job at hand, mark them up, then file or discard them after the repair.
Safety Note
Always follow the manual’s lockout, support, and pressure‑relief steps before opening any hydraulic or structural component.
📘 Show Index
Link Belt 300X4 Excavator Index:
- Excavator
- SAFETY
- Safety, general information and standard torque data
- General Information
- Standard Torque Data For Cap Screws And Nuts
- Protection of Electric/Electronics System During Charging or Welding
- A. LOWER
- Main Equipment Table
- Main Equipment Structure and Operation Explanation
- Port Diagram
- Travel Motor
- Center Joint
- Basic Functions
- Travel Speed Selection
- Travel Alarm
- Removal and Installation of Track
- Removal and Installation of Shoe Assembly
- Removal and Installation of Shoe Plate
- Removal and Installation of Roller
- Removal and Installation of Upper Roller
- Assembly and Disassembly of Upper Roller
- Removal and Installation of Lower Roller
- Assembly and Disassembly of Lower Roller
- Removal and Installation of Drive Sprocket
- Removal of Drive Sprocket
- Installation of Drive Sprocket
- Removal and Installation of Take-up Roller
- Removal of Take-up Roller
- Installation of Take-up Roller
- Assembly and Disassembly of Take-up Roller
- Configuration Diagram
- Dimension Diagram
- Jig Dimension Diagram
- Disassembly Procedures
- Assembly Procedures
- Removal and Installation of Grease Cylinder
- Removal of Grease Cylinder
- Installation of grease cylinder
- Assembly and Disassembly of Grease Cylinder
- Configuration Diagram
- Dimension Diagram
- Jig Dimension Diagram
- Disassembly Procedures
- Assembly Procedures
- Removal and Installation of Center Joint
- Removal of Center Joint
- Installation of Center Joint
- Assembly and Disassembly of Center Joint
- Configuration Diagram
- Dimension Diagram
- Jig Dimension Diagram
- Disassembly Procedures
- Assembly Procedures
- Removal and Installation of Travel Motor
- Removal of Travel Motor
- Installation of Travel Motor
- Assembly and Disassembly of Travel Motor (nabtesco)
- Safety Precautions
- Service Overview
- Disassembly
- Maintenance Standards
- Assembly
- Performance Check Test
- Maintenance Standards
- Drive sprocket
- Take-up Roller
- Upper Roller
- Lower Roller
- Track Shoe (Grouser Shoe)
- Inspection Gauge
- Pressure Measurement and Adjustment Procedures
- Main Pressure Measurement
- Drain Volume Measurement Procedures
- Preparations
- Travel Motor Drain Volume Measurement
- Air Bleed Procedure
- B. C. SWING UNIT, COUNTERWEIGHT
- Main Equipment Table
- Main Equipment Structure and Operation Explanation
- Port Diagram
- Basic Functions
- Swing brake
- Swing Lock
- Swing Speed Limit
- Swing Relief Cut
- Removal and Installation of Swing Unit
- Removal of Swing Unit
- Installation of Swing Unit
- Assembly and Disassembly of Swing Unit
- Assembly and Disassembly of Swing Motor
- Causes of Trouble and Solutions
- Maintenance Standard Table
- Required Tools
- Jig
- Disassembly
- Assembly
- Swing Motor Internal Structural Diagram
- Removal and Installation of Counterweight
- Removal of Counterweight
- Installation of Counterweight
- Pressure Measurement and Adjustment Procedures
- Main Pressure Measurement
- Drain Volume Measurement Procedures
- Preparations
- Swing Motor Drain Volume Measurement
- Air Bleed Procedure
- H. ENGINE
- Main Equipment Table
- Basic Functions
- Fuel Gauge
- Coolant Temperature Gauge
- SCR Gauge
- Fuel Economy Gauge
- Neutral start
- Power-cut Delay
- Preheat
- Throttle
- Throttle Volume Position Detection
- Idle start
- Auto Idle
- One-touch Idle
- Auto Warm-Up
- Idle Shutdown
- Idle up
- Work Mode Control
- Engine Emergency Stop
- SCR RE-GEN
- Inducement
- Feed Pump Automatic Stop
- Coolant Level Decrease
- Air Filter Clogging
- Fuel Filter Clogging
- Battery Charge Abnormality
- Horsepower Reduction Control (in Uplands)
- Horsepower Reduction Control (at Engine Failure)
- Main Data
- Function, Structure, Operation
- Function, structure, operation (SCR)
- SCR Control System Inspection
- Explanation of SCR Operation
- Diagnosis for Each Symptom
- Intermittent conditions of urea selective catalytic reduction system
- Urea fluid consumption too high
- Ammonia smell noticeable
- White crystalline powder visible
- Symptom
- Engine Start Problem
- Engine Stalling
- Engine Hunting, Rough Idling
- Excessive White Smoke in Exhaust Gas
- Excessive Black Smoke in Exhaust Gas
- Abnormal Noise
- High Fuel Consumption
- High Oil Consumption
- Engine Output Deficiency
- Functional Inspection
- Engine Compression Pressure Inspection
- Fuel System Inspection
- Lubrication System Inspection
- Suction air system inspection
- Exhaust System Inspection
- EGR Control System Inspection (if equipped)
- Start System Inspection
- Glow Control System Inspection
- OBD System Inspection
- Monitor Warning Light Lighting Circuit System Inspection
- Inspection of the monitor warning light blinking circuit system
- Start Circuit System Inspection
- Removal and Installation of Engine Assembly
- Removal of Engine Assembly
- Installation of Engine Assembly
- Removal and Installation of Fuel Cooler, Engine Intercooler, Radiator, and Oil Cooler
- Removal and Installation of Fuel Cooler
- Removal and Installation of Engine Intercooler
- Removal and Installation of Radiator
- Removal and Installation of Oil Cooler
- Removal and Installation of Turbo Charger
- Removal of Turbo Charger
- Installation of Turbo Charger
- Inspection of Turbo Charger
- Removal and Installation of EGR Valve (if equipped)
- Removal of EGR Valve
- Installation of EGR Valve
- Inspection of EGR Valve
- Removal and Installation of Engine Hood
- Removal of Engine Hood
- Installation of Engine Hood
- Removal and Installation of SCR
- Removal of SCR
- Installation of SCR
- Removal and installation of Silicon Controlled Rectifier Catalyst
- Removal of Silicon Controlled Rectifier Catalyst
- Installation of Silicon Controlled Rectifier Catalyst
- Disassembly of Silicon Controlled Rectifier Catalyst
- Assembly of Silicon Controlled Rectifier Catalyst
- Inspection of Silicon Controlled Rectifier Catalyst
- Removal and Installation of Cylinder Head Cover
- Cylinder head cover Removal
- Cylinder head cover Installation
- Removal and Installation of Cylinder Head
- Removal and Installation of Cylinder Block
- Removal of Cylinder block
- Installation of Cylinder block
- Cylinder block Inspection
- Lubrication System
- Removal and Installation of Oil Pan
- Removal and Installation of Oil Level Switch
- Removal and Installation of Oil Pump Assembly
- Inspection of Engine oil
- Removal and Installation of Oil Port Cover
- Removal and installation of Oil filter element
- Cooling System
- Removal and Installation of Water Pump Assembly
- Removal and Installation of Thermostat
- Inspection of Coolant
- Inspection of Cooling Fan Belt
- Removal and Installation of Overheat Switch
- Induction System
- Inspection of Air cleaner element
- Exhaust System
- Removal and installation of Oxidation Catalyst Assembly
- Aux. Emission Control Devices System
- Removal and installation of Dosing Module
- Removal and installation of DEF Supply Module
- Removal and installation of Coolant Control Valve
- Removal and Installation of DCU
- Removal and installation of DEF Supply Module Filter
- Removal and Installation of Exhaust Manifold
- Removal of Exhaust manifold
- Installation of Exhaust manifold
- Exhaust manifold Inspection
- Removal and Installation of Fuel Tank
- Removal of Fuel Tank
- Installation of fuel tank
- Removal and Installation of Urea Pump
- Removal of Urea Pump
- Installation of Urea Pump
- Removal and Installation of Urea Solution Tank
- Removal of Urea Solution Tank
- Installation of Urea Solution Tank
- Removal and Installation of Fuel Supply Pump
- Removal of Fuel Supply Pump
- Fuel supply pump Installation
- Removal and Installation of Common Rail Assembly
- Removal of Common rail assembly
- Installation of Common rail assembly
- Removal and Installation of Injector
- Injector Removal
- Injector Installation
- Removal and installation of Idle Gear
- Removal of Idle Gear
- Installation of Idle Gear
- Inspection of Idle Gear
- Removal and installation of Inlet Cover
- Removal of Inlet Cover
- Installation of Inlet Cover
- Removal and installation of Crankshaft
- Removal of Crankshaft
- Installation of Crankshaft
- Disassembly of Crankshaft
- Assembly of Crankshaft
- Inspection of Crankshaft
- Removal and installation of Piston
- Removal of Piston
- Installation of Piston
- Disassembly of Piston
- Assembly of Piston
- Inspection of Piston
- Removal and installation of Camshaft
- Removal of Camshaft
- Installation of Camshaft
- Disassembly of Camshaft
- Assembly of Camshaft
- Inspection of Camshaft
- Removal and installation of Flywheel
- Removal of Flywheel
- Installation of Flywheel
- Inspection of Flywheel
- Removal and installation of Crankshaft Front Oil Seal
- Removal of Crankshaft Front Oil Seal
- Installation of Crankshaft Front Oil Seal
- Removal and installation of Crankshaft Rear Oil Seal
- Removal of Crankshaft Rear Oil Seal
- Installation of Crankshaft Rear Oil Seal
- Removal and installation of Rocker Arm Shaft
- Removal of Rocker Arm Shaft
- Installation of Rocker Arm Shaft
- Disassembly of Rocker Arm Shaft
- Assembly of Rocker Arm Shaft
- Inspection of Rocker Arm Shaft
- Removal and installation of Valve Spring
- Removal of Valve Spring
- Installation of Valve Spring
- Inspection of Valve Spring
- Removal and installation of Valve Stem Oil Seal
- Removal of Valve Stem Oil Seal
- Installation of Valve Stem Oil Seal
- Removal and installation of Front Cover
- Removal of Front Cover
- Installation of Front Cover
- Removal and installation of Intake Throttle Valve
- Removal of Intake Throttle Valve
- Installation of Intake Throttle Valve
- Removal and Installation of Starter Motor
- Removal of Starter Motor
- Installation of Starter Motor
- Disassembly of Starter Motor
- Assembly of Starter Motor
- Inspection of Starter Motor
- Removal and Installation of Alternator
- Removal of Alternator
- Installation of Alternator
- Disassembly of Alternator
- Assembly of Alternator
- Inspection of Alternator
- Removal and Installation of Glow Plug
- Removal of Glow Plug
- Installation of Glow Plug
- Glow Plug Inspection
- Removal and Installation of Suction Control Valve
- Suction control valve Removal
- Suction control valve Installation
- Removal and installation of Fuel Filter
- Removal of Fuel Filter
- Installation of Fuel Filter
- Removal and installation of Relief Valve
- Removal of Relief Valve
- Installation of Relief Valve
- Removal and installation of Fuel Filter Element
- Removal of Fuel Filter Element
- Installation of Fuel Filter Element
- Removal and Installation of Fuel filter pressure
- Fuel filter pressure sensor Removal
- Fuel filter pressure sensor Installation
- Removal and Installation of Engine coolant temperature sensor
- Engine coolant temperature sensor Removal
- Engine coolant temperature sensor Installation
- Engine coolant temperature sensor Inspection
- Removal and Installation of CKP sensor
- Removal of CKP sensor
- Installation of CKP sensor
- CKP sensor Inspection
- Removal and Installation of CMP sensor
- CMP sensor Removal
- CMP sensor Installation
- CMP sensor Inspection
- Removal and Installation of Oil pressure sensor
- Removal of Oil pressure sensor
- Installation of Oil pressure sensor
- Inspection of Oil pressure sensor
- Removal and installation of Pressure Sensor/Boost Temperature Sensor
- Removal of Pressure sensor/boost temperature sensor
- Installation of Pressure sensor/boost temperature sensor
- Inspection of Pressure sensor/boost temperature sensor
- Removal and Installation of IMT sensor
- Removal of IMT sensor
- Installation of IMT sensor
- Removal and installation of Charge Air Cooler Temperature Sensor 1
- Removal of Charge air cooler temperature sensor 1
- Installation of Charge air cooler temperature sensor 1
- Inspection of Charge air cooler temperature sensor 1
- Sampling Procedure
- Removal and Installation of Exhaust gas temperature sensor
- Removal of Exhaust gas temperature sensor
- Installation of Exhaust gas temperature sensor
- Inspection of Exhaust gas temperature sensor
- Removal and installation of EGR Gas Temperature Sensor 1
- Removal of EGR Gas Temperature Sensor 1
- Installation of EGR Gas Temperature Sensor 1
- Inspection of EGR Gas Temperature Sensor 1
- Removal and installation of EGR Gas Temperature Sensor 2
- Removal of EGR Gas Temperature Sensor 2
- Installation of EGR Gas Temperature Sensor 2
- Inspection of EGR Gas Temperature Sensor 2
- Removal and installation of NOx Sensor
- Removal of NOx Sensor
- Installation of NOx Sensor
- Removal and Installation of Exhaust gas temperature sensor 3
- Removal of Exhaust gas temperature sensor 3
- Installation of Exhaust gas temperature sensor 3
- Removal and installation of DEF Sensor
- Removal of DEF Sensor
- Installation of DEF Sensor
- Engine-related Diagnostic Trouble Code List
- Engine-side Trouble
- Data Reference Values
- Idle Speed
- Two pump relief
- J. HYDRAULIC EQUIPMENT (PUMP, OPERATION SYSTEM VALVE)
- Main Equipment Table
- Hydraulic Device
- Control-related
- Basic Functions
- Oil temperature gauge
- Static Horsepower Control
- Overload Warning (Function for Europe Only)
- Pressure Boost Control
- Stroke Control
- Boom Down Energy Save
- Pump Horsepower Boost Control
- Arm 1 Semi-parallel Control
- Arm 2 Semi-parallel Control
- Hot Shutdown Warning
- Gate Lock
- Breaker Mode
- Crusher Mode
- Quick coupler
- Hydraulic Fluid Filter Clogging
- Solenoid Sticking Prevention
- Port Diagram
- Hydraulic Pump (standard model)
- Control Valve
- 5 stack solenoid valve
- 2 Stack Solenoid Valve
- Remote Control Valves (upper, travel)
- Cushion Valve
- 2-way Selector Valve
- Direction Valve
- 6 Stack Proportional Valve
- Relief Valve (electromagnetic proportional)
- Manifold Under Cab
- Manifold (accumulator section)
- Hydraulic Oil Tank
- Hydraulic Pump
- Structure and Operation Explanation
- Hydraulic Pump Internal Structure Diagram
- Regulator
- Gear Pump
- Operation Outline of Electronically-Controlled Pump
- Control Valve
- Basic Configuration
- Operation
- 5 Stack Solenoid Valve Operation Explanation
- External Shape Diagram and Components
- operation explanation
- Upper Pilot Valve (remote control valve)
- Structure
- Function
- Operation
- Structural Diagram
- Travel Pilot Valve (remote control valve)
- Operation
- Structural Diagram
- Cushion Valve
- structure
- operation explanation
- Selector Valve (2-way)
- Structure
- operation explanation
- Development Diagram
- Direction Valve (3-direction)
- Structure
- Operation Explanation
- 6 Stack Proportional Valve (Pilot)
- structure
- operation principle
- Electromagnetic Relief Valve
- Structure
- Operation Explanation
- Removal and Installation of Hydraulic Tank
- Removal of Hydraulic Reservoir
- Installation of Hydraulic Oil Tank
- Removal and Installation of Hydraulic Pump
- Removal of Hydraulic Pump
- Installation of Hydraulic Pump
- Removal and Installation of Pump coupling
- Removal of Pump Coupling
- Installation of Pump Coupling
- Removal and Installation of Control Valve
- Removal of Control Valve
- Installation of Control Valve
- Removal and Installation of Travel Remote Control Valve
- Removal of Travel Remote Control Valve
- Installation of Travel Remote Control Valve
- Removal and Installation of Operation Remote Control Valve
- Removal of Operation Remote Control Valve (Left)
- Installation of Operation Remote Control Valve (Left)
- Removal of Operation Remote Control Valve (right side)
- Installation of Operation Remote Control Valve (right side)
- Removal and Installation of 5 Stack Solenoid
- Removal of 5 Stack Solenoid Valve
- Installation of 5 Stack Solenoid Valve
- Removal and Installation of Cushion Valve
- Removal of Cushion Valve
- Installation of Cushion Valve
- Procedures for Assembly and Disassembly of Hydraulic Pump Main Unit
- Tools
- Disassembly Procedure
- Assembly Procedure
- Pump Main Unit Maintenance Standards
- Worn Parts Replacement Standards
- Standards for repairing cylinders, valve plates, and swash plates (shoe plates)
- Tightening Torque
- Overall View
- Regulator Maintenance Standards
- Regulator Adjustment
- Appendix Table and Drawings
- Regulator Assembly and Disassembly Procedures
- Assembly and Disassembly of Control Valve
- Disassembly
- Cleaning
- Inspection
- assembly
- Internal Structural Diagram
- Part List
- Relief Valve
- Installation
- Operation
- Malfunction and Countermeasure
- Procedures for Assembly and Disassembly of Operation Remote Control Valve
- Maintenance Procedures
- Disassembly Procedures
- Assembly Procedures
- Causes of Trouble and Countermeasures
- Procedures for Assembly and Disassembly of Travel Remote Control Valve
- Maintenance Procedures
- Disassembly Procedures
- Assembly Procedures
- Causes of Trouble and Countermeasures
- Assembly and Disassembly of Cushion Valve
- Disassembly Procedures
- Assembly Procedures
- Written Materials
- Procedures for Assembly and Disassembly of 6 Stack Proportional Valve (Pilot)
- Development Diagram
- Assembly and disassembly procedures
- Maintenance Standards
- Troubleshooting
- Pressure Measurement and Adjustment Procedures
- Procedures for Pressure Measurement from the Monitor Display
- PROCEDURES FOR MEASURING HYDRAULIC OIL TEMPERATURE FROM THE MONITOR DISPLAY
- Procedures for Pressure Measurement by Installing Pressure Gauge
- Pressure Measuring Ports
- Control Valve
- Pressure Measurement Preparations
- Pressure Measurement
- Main Pressure Measurement
- Pilot Pressure Measurement
- Negative Control Pressure Measurement
- Pressure Adjustment
- Hydraulic Pump Flow Measurement Procedures
- Preparations
- Work Preparations
- Flow Measurement
- Air Bleed Procedure
- Sampling Procedure
- Sampling of Hydraulic Fluid
- Hydraulic Equipment Layout
- Overall View
- Pump Chamber Hydraulic Equipment Layout
- Swing Body Center Section Hydraulic Equipment Layout
- Housing Left Side Hydraulic Equipment Layout
- Layout of Hydraulic Equipment in Cab
- J. EXPLANATION OF HYDRAULIC CIRCUIT AND OPERATIONS
- 001_J_Explanation of Hydraulic Circuit and Operations (standard model)_300X4
- 002_J_Explanation of Hydraulic Circuit and Operations (option)_300X4
- N. CAB
- Removal and Installation of Operator’s Seat
- Removal of Operator’s Seat
- Installation of Operator’s Seat
- Removal and Installation of Cab Assembly
- Removal of Cab Assembly
- Installation of Cab Assembly
- Removal and Installation of Wiper
- Removal of Wiper
- Installation of wiper
- Removal and Installation of Cab Front Glass
- Removal of Cab Front Glass
- Installation of Cab Front Glass
- Removal and Installation of Right-side Window Glass
- Removal of Right-side Window Glass
- Installation of Right-side Window Glass
- Removal and Installation of Door (Upper) Sash Glass
- Removal of Door (Upper) Sash Glass
- Installation of Door (Upper) Sash Glass
- Window Lock Adjustment Procedures
- Window Lock (front side)
- Window Lock (rear side)
- Removal and Installation of Housing Guardrail
- Removal of Housing Guardrail
- Installation of Housing Guardrail
- Tightening Torque
- R. ELECTRICAL PARTS
- Basic Functions
- Monitor Control
- Basic Operation
- Accessories
- Safety
- Maintenance
- Setting
- Battery Disconnect Switch
- Explanation of Controller
- Service Support
- Screen Operations
- Screen Display List
- Service Monitor Structure
- CHECK Screen List
- SETUP Screen List
- CALIBRATE Screen List
- Connection Connector Pin Layout
- Sequence Circuit Diagram
- Code List
- Overall
- Block diagram
- Electrical Equipment Layout Diagram
- Main Unit Left Side Layout Diagram
- Engine Section Layout Diagram
- Main Unit Right Side Layout Diagram (Pump Chamber)
- Main Unit Center Section Layout Diagram
- Cab Layout Diagram 1
- Cab Layout Diagram 2
- Layout Around Operator Seat
- Stand Alone Parts Diagram
- Removal and Installation of Wiper Controller
- Removal of Wiper Controller
- Installation of wiper controller
- Removal and Installation of Wiper Motor
- Removal of Wiper Motor
- Installation of wiper motor
- Removal and Installation of ECM
- Removal of ECM
- Installation of ECM
- Removal and Installation of Main Controller
- Removal of Main Controller
- Installation of Main Controller
- Removal and Installation of DCU
- Removal of DCU
- Installation of DCU
- Removal and Installation of Monitor
- Removal of Monitor
- Installation of Monitor
- Removal and Installation of Rear View Camera
- Removal of Rear View Camera
- Installation of Rear View Camera
- Removal and Installation of Side Camera (right)
- Removal of Side Camera (Right)
- Installation of Side Camera (right)
- Removal and Installation of Side Camera (Left)
- Removal of Side Camera (Left)
- Installation of Side Camera (left)
- Removal and Installation of FVM Controller
- Removal of FVM Controller
- Installation of FVM Computer
- How to Set FVM
- Air Conditioner Overall Diagram
- Frame
- Cab
- Equipment Layout Diagram
- Circuit Diagram
- Explanation of Functions
- Actuator Inspection
- Self-diagnosis Function with Panel Display
- Part Function and Good/Poor Judgment
- Assembly and Disassembly of Unit
- Removal of Blower Unit
- Replacement of Blower Motor
- Replacement of Blower Amp
- Removal of Heater Core
- Removal of Heat Case Right/Left
- Replacement of Evaporator and Expansion Valve
- Installation of Evaporator Sensor
- Replacement of Motor Actuator
- Removal and Installation of Compressor
- Removal of Compressor
- Installation of Compressor
- Removal and Installation of Condenser
- Removal of Condenser
- Installation of Condenser
- Removal and Installation of Receiver Dryer
- Removal of Receiver Dryer
- Installation of Receiver Dryer
- Work Precautions
- Work Procedures
- Filling Procedures
- R. ELECTRICAL PARTS AND WIRING ASSEMBLY
- 004_R_Electrical Parts and Wiring Assembly Diagram_300X4
- 003_R_Electrical Connector Wiring Diagram_300X4
- V. ATTACHMENTS
- Main Equipment Table
- Maintenance Standards
- Removal and Installation of Bucket Cylinder
- Removal of Bucket Cylinder
- Installation of Bucket Cylinder
- Removal and Installation of Arm Cylinder
- Removal of Arm Cylinder
- Installation of Arm Cylinder
- Removal and Installation of Boom Cylinder
- Removal of Boom Cylinder
- Installation of Boom Cylinder
- Procedures for Operation/Assembly and Disassembly of Hydraulic Cylinder
- Specifications and Structure Diagram (including the assembly diagram and parts table)
- Handling Precautions
- Maintenance Inspection and Service
- Trouble Diagnostics
- Storage Standards
- Assembly and Disassembly Procedures
- Structural Diagram (made by KYB)
- HBCV
- structure
- Function
- operation explanation
- Port Diagram
- Air Bleed Procedure
- Removal and Installation of HBCV
- Removal and Installation of Arm HBCV
- Removal of Arm HBCV
- Installation of Arm HBCV
- Removal and Installation of Boom HBCV
- Removal of Boom HBCV
- Installation of Boom HBCV
- Removal and Installation of Bucket
- Removal of Bucket
- Installation of Bucket
- Removal and Installation of Bucket Link
- Removal of Bucket Link
- Installation of Bucket Link
- Removal and Installation of Arm
- Removal of Arm
- Installation of Arm
- Removal and Installation of Boom
- Removal of Boom
- Installation of Boom
- Z. OTHER
- Change from Type 6
- Overall Layout
- Lower
- Swing Unit
- Engine
- hydraulic-related
- Hydraulic Control
- Cab, Housing
- Electrical Data
- Electric Control
- Attachments
- Specifications
- ENGINE
- HYDRAULIC SYSTEM
- HYDRAULIC CONTROLS
- ELECTRICAL SYSTEM
- OPERATOR ENVIRONMENT
- UNDERCARRIAGE
- Mass
- Digging force (with 1.1 m3 Sumitomo Bucket) (ISO 6015)
- DIMENSIONS
- WORKING RANGES
- SYSTEM FLUID CAPACITIES AND SPECIFICATIONS
- Arm Dimension
- Standard Arm [3.18 m (10.43 ft.)]
- Short Arm [2.65 m (8.69 ft.)]
- Long Arm [3.66 m (12.01 ft.)]
- Main Unit Weight
- Divided Weight (Standard Specifications)
- Stand Alone Part Weight
- Shoe Weight (Per Side)
- Arm Weight
- Bucket Weight
- Bolt Size and Torque Table
- Overall View
- WORK RANGE DIAGRAM
- New Machine Performance Judgment Table
- Table of Standards
- Measurement Method
- FLUIDS AND LUBRICANTS
- HYDRAULIC FLUID
- Engine Oil
- Fuel
- Conditions applicable to diesel fuel
- Recommended conditions applicable to diesel fuels
- Main-Unit-related Diagnostic Trouble Code List
- Main Unit-side Trouble
- Diagnostic Trouble Code: 7000 Pressure Sensor P1 Abnormality
- Diagnostic Trouble Code: 7001 Pressure Sensor P2 Abnormality
- Diagnostic Trouble Code: 7002 Pressure Sensor N1 Abnormality
- Diagnostic Trouble Code: 7003 Pressure Sensor N2 Abnormality
- Diagnostic Trouble Code: 7004 Pressure Sensor Boom Cylinder Bottom Abnormality
- Diagnostic Trouble Code: 7007 Pressure Sensor Arm Cylinder Rod Abnormality
- Diagnostic Trouble Code: 7021 Pressure Sensor Swing Pilot Abnormality
- Diagnostic Trouble Code: 7023 Pressure Sensor Arm-In Pilot Abnormality
- Diagnostic Trouble Code: 7040 Level Sensor Fuel Abnormality
- Diagnostic Trouble Code: 7041 Temperature Sensor Hydraulic Fluid Abnormality
- Diagnostic Trouble Code: 7065 Pressure Sensor Boom-Up Pilot Abnormality
- Diagnostic Trouble Code: 7067 Pressure Sensor Bucket-Close Pilot Abnormality
- Diagnostic Trouble Code: 7068 Pressure Sensor Boom-Down Pilot Abnormality
- Diagnostic Trouble Code: 7069 Pressure Sensor Arm-Out Pilot Abnormality
- Diagnostic Trouble Code: 7070 Pressure Sensor Bucket-Open Pilot Abnormality
- Diagnostic Trouble Code: 7071 Pressure Sensor Travel Right Pilot Abnormality
- Diagnostic Trouble Code: 7072 Pressure Sensor Travel Left Pilot Abnormality
- Diagnostic Trouble Code: 7073 Pressure Sensor Travel 1 Pedal Abnormality
- Diagnostic Trouble Code: 7074 Pressure Sensor 1st Option Pilot (Common/Front Pedal) Abnormality
- Diagnostic Trouble Code: 7075 Pressure Sensor Arm Cylinder Bottom Abnormality
- Diagnostic Trouble Code: 7078 Pressure Sensor 1st Option Pilot (Rear Pedal) Abnormality
- Diagnostic Trouble Code: 7200 Swing Brake Solenoid Abnormality
- Diagnostic Trouble Code: 7201 Travel 2nd-Speed Switchover Solenoid Abnormality
- Diagnostic Trouble Code: 7202 Pressure Boost Solenoid Abnormality
- Diagnostic Trouble Code: 7203 Travel Alarm Buzzer Abnormality
- Diagnostic Trouble Code: 7206 Option Return Line Switchover Solenoid Abnormality
- Diagnostic Trouble Code: 7207 Free Swing Solenoid Abnormality
- Diagnostic Trouble Code: 7213 Quick Coupler Buzzer Abnormality
- Diagnostic Trouble Code: 7214 Quick Coupler Solenoid Abnormality
- Diagnostic Trouble Code: 7247 Boom 2-Down Pilot Proportional Valve Abnormality
- Diagnostic Trouble Code: 7249 Bucket-Close Pilot Proportional Valve Abnormality
- Diagnostic Trouble Code: 7250 Option Relief Pressure Proportional Valve Abnormality
- Diagnostic Trouble Code: 7265 Arm 1 Semi-Parallel Proportional Valve Abnormality
- Diagnostic Trouble Code: 7266 Arm 2 Semi-Parallel Proportional Valve Abnormality
- Diagnostic Trouble Code: 7267 Arm 1 Regeneration Release Proportional Valve Abnormality
- Diagnostic Trouble Code: 7270 Tilting 1 Proportional Valve Abnormality
- Diagnostic Trouble Code: 7271 Tilting 2 Proportional Valve Abnormality
- Diagnostic Trouble Code: 7273 Straight Travel Proportional Valve Abnormality
- Diagnostic Trouble Code: 7400 Coolant Temperature Overheating 1
- Diagnostic Trouble Code: 7401 Coolant Temperature Overheating 2
- Diagnostic Trouble Code: 7404 Oil Temperature Overheating
- Diagnostic Trouble Code: 7405 Boost Temperature Overheating 1
- Diagnostic Trouble Code: 7406 Boost Temperature Overheating 2
- Diagnostic Trouble Code: 7420 Alternator Power Generation Failure
- Diagnostic Trouble Code: 7421 Coolant Level Decrease
- Diagnostic Trouble Code: 7422 Engine Oil Pressure Decrease
- Diagnostic Trouble Code: 7423 Air Cleaner Clogging
- Diagnostic Trouble Code: 7424 Return Filter Clogging
- Diagnostic Trouble Code: 7426 Fuel Filter Clogging 1
- Diagnostic Trouble Code: 7427 Fuel Filter Clogging 2
- Diagnostic Trouble Code: 7428 Inducement (Remaining Urea Level Low) – Warning
- Diagnostic Trouble Code: 7429 Inducement (Remaining Urea Level Low) – Early
- Diagnostic Trouble Code: 7430 Inducement (Remaining Urea Level Low) – Final
- Diagnostic Trouble Code: 7602 ECM Communication Abnormality
- Diagnostic Trouble Code: 7605 ECM Not-Matched
- Diagnostic Trouble Code: 7606 EEPROM Abnormality
- Diagnostic Trouble Code: 7608 Camera Abnormality
- Diagnostic Trouble Code: 7612 Air Conditioner Communication Abnormality
- Diagnostic Trouble Code: 7613 Monitor Communication (CAN) Abnormality
- Diagnostic Trouble Code: 7615 Sub-Controller Communication Abnormality
- Diagnostic Trouble Code: 7618 DCU Communication Abnormality
- List of special tools
- NUMERICAL VALUE CONVERSION TABLE
- A
- C
- H
- J
- R
- V
- Paint Colors
- Abbreviation
Link Belt
