Link Belt 750X4 Excavator Service Manual
This 750X4 service manual is what we lean on when these big excavators are out in the dirt all day doing mass excavation, trenching, or loading trucks. When something isn’t right—maybe the boom feels spongy or the swing is slow and noisy—this is the document that walks you through how to trace the fault, strip what you need to strip, test components properly, and put everything back together without guesswork.
Applications & Use Cases
- Track down hydraulic issues, like weak functions or drift, by following a logical test sequence instead of just swapping parts.
- Disassemble and reassemble major components—boom, arm, swing, travel drives—with the right order so you don’t damage seals or hardware.
- Verify adjustments on controls and linkages after repairs so the machine responds smoothly and predictably.
- Plan safe lifting and support points before pulling heavy components in the field or shop.
- Confirm your troubleshooting before ordering costly parts, reducing come-backs and downtime.
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 follow steps right beside the machine.
Q: Is it worth printing sections of this manual?
A: Many techs print only the pages for the job they’re doing, then mark notes and measurements directly on them.
Safety Note
Always follow the manual’s support, lockout, and pressure-release steps before opening any hydraulic or structural system.
📘 Show Index
Link Belt 750X4 Excavator Index:
- Excavator
- SAFETY
- Safety, general information and standard torque data
- General Information
- Safety
- Cab Protection Structure
- 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 Retractable Lower Frame
- Removal of Retract Lower
- Mounting of Retract Lower
- Removal and Installation of Drive Sprocket
- Removal of Drive Sprocket
- Installation of Drive Sprocket
- Removal and Installation of Take-up Roller
- Remove take-up roller
- Installation of Take-up Roller
- Assembly and Disassembly of Take-up Roller
- Configuration diagram
- Dimension diagram
- Jig dimension diagram
- Disassembly procedure
- Assembly procedure
- Removal and Installation of Grease Cylinder
- Removal of Grease Cylinder
- Installation of Grease Cylinder
- Assembly and Disassembly of Grease Cylinder
- Removal and Installation of Center Joint
- Removal of Center Joint
- Installation of Center Joint
- Disassembly and Assembly of Center Joint
- Internal Structural Diagram
- Removal and Installation of Travel Motor
- Removal of Travel Motor
- Installation of Travel Motor
- Assembly and Disassembly of Travel Motor
- Safety cautions
- Tools for assembly and disassembly
- Disassembly procedure of motor
- Maintenance standards
- Assembly Procedure of Motor
- Motor installation
- Operation check
- Troubleshooting
- Structural Diagram
- 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
- Counterweight Removal System (Option)
- Solenoid Valves (Counterweight Raise/Lower and Arm Top/Bottom)
- Cylinder (Counterweight raise/arm top)
- stop valve
- Main Equipment Structure and Operation Explanation
- Swing Motor
- Structure of Counterweight Removal System
- Port Diagram
- Basic Functions
- Swing brake
- Swing Lock
- Swing Speed Limit
- Swing Relief Cut
- Counterweight Removal/Installation Mode
- 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 procedures
- Assembly and disassembly
- Removal and Installation of Counterweight
- Removal of Counterweight
- Installation of Counterweight
- Removal and Installation of Counterweight Removal System
- Component Layout Diagrams of Counterweight Removal System
- Removal and Installation of Counterweight Removal System Cylinder
- Removal and Installation of Counterweight Removal System Solenoid Valve
- 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 CLEANING
- 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, and Operation of Emission Control
- SCR Control System Inspection
- Operation Explanation of SCR
- 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 failure
- Engine stalling
- Engine hunching, rough idling
- Excess Amount of White Smoke in Exhaust Gas
- Excess Amount of Black Smoke in Exhaust Gas
- Abnormal Noise
- Large fuel consumption
- Large oil consumption
- Insufficient engine output
- Functional Inspection
- Engine compression pressure inspection
- Inspection of the fuel system
- Inspection of the air intake system
- Inspection of the exhaust system
- Inspection of EGR Control System
- Inspection of the starting system
- Inspection of glow control system
- OBD System Check
- Inspection of monitor warning lamp lighting circuit system
- Inspection of monitor warning lamp flashing circuit system
- Inspection of starting circuit system
- 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 Hydraulically-Operated Fan
- Removal and Installation of Turbo Charger
- Removal of Turbocharger assembly
- Installation of Turbocharger assembly
- Inspection of Turbocharger assembly
- Removal and Installation of EGR Valve (if equipped)
- Removal of EGR Valve
- Installation of EGR Valve
- Removal and Installation of EGR Cooler
- Removal of EGR cooler
- Installation of EGR cooler
- Inspection of EGR cooler
- 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
- Removal of Cylinder head cover
- Installation of Cylinder head cover
- Removal and Installation of Cylinder Head
- Removal and Installation of Cylinder Block
- Removal of Cylinder Block
- Disassembly of Cylinder Block
- Reassembly of Cylinder Block
- Installation of Cylinder Block
- Inspection of Cylinder Block
- Lubrication System
- Removal and Installation of Oil Pan
- Removal and Installation of Oil Level Switch
- Removal and Installation of Oil Pump Assembly
- Removal and Installation of Oil Cooler Assembly
- Inspection of Engine Oil
- Removal and installation of Piston oil jet
- Removal and installation of Oil filter element
- Removal and Installation of Oil Separator Element
- Cooling System
- Removal and Installation of Water Pump Assembly
- Removal and Installation of Thermostat
- Inspection of Coolant
- Removal and installation of Generator drive 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 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
- Installation of Fuel Supply Pump
- Inspection of Fuel Supply Pump
- Removal and Installation of Common Rail Assembly
- Removal of Common Rail Assembly
- Installation of Common Rail Assembly
- Removal and Installation of Injector
- Removal of Injector
- Installation of the Injector
- Removal and installation of Idle Gear
- Removal of Idle Gear
- Installation of Idle Gear
- Inspection of Idle Gears
- Removal and installation of Crankshaft
- Removal of Crankshaft
- Installation of Crankshaft
- Disassembly of Crankshaft
- Reassembly of Crankshaft
- Inspection of Crankshaft
- Removal and installation of Piston
- Removal of Piston
- Installation of Piston
- Disassembly of Piston
- Reassembly of Piston
- Inspection of Piston
- Removal and installation of Camshaft
- Removal of Camshaft
- Installation of Camshaft
- Disassembly of Camshaft
- Reassembly of Camshaft
- Inspection of Camshaft
- Removal and installation of Flywheel
- Removal of Flywheel
- Installation of Flywheel
- Disassembly of Flywheel
- Reassembly of Flywheel
- Inspection of Flywheel
- Removal and Installation of Flywheel housing
- Removal of Flywheel housing
- Installation of Flywheel housing
- Removal and Installation of Timing Gear Case
- Removal of Timing Gear Case
- Installation of Timing Gear Case
- Removal and installation of Rocker Arm Shaft
- Removal of Rocker Arm Shaft
- Installation of Rocker Arm Shaft
- Disassembly of Rocker Arm Shaft
- Reassembly of Rocker Arm Shaft
- Inspection of Rocker Arm Shaft
- 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
- Reassembly of Starter Motor
- Inspection of Starter Motor
- Removal and Installation of Alternator
- Removal of Alternator
- Installation of Alternator
- Disassembly of Alternator
- Reassembly 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 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 temperature sensor
- Removal of Fuel Temperature Sensor
- Installation of Fuel Temperature Sensor
- Inspection of Fuel Temperature Sensor
- Removal and installation of Pressure limiter
- Removal of Pressure Limiter
- Installation of Pressure Limiter
- Removal and installation of Fuel pressure sensor
- Removal of Fuel Pressure Sensor
- Installation of Fuel Pressure Sensor
- Inspection of Fuel pressure sensor
- Removal and Installation of Fuel filter pressure
- Removal of Fuel filter pressure sensor
- Installation of Fuel filter pressure sensor
- Removal and Installation of Engine coolant temperature sensor
- Removal of Coolant Temperature Sensor
- Installation of Coolant Temperature Sensor
- Engine coolant temperature sensor Inspection
- Removal and Installation of CKP sensor
- Removal of Crankshaft Position (CKP) Sensor
- Installation of Crankshaft Position (CKP) Sensor
- Inspection of Crankshaft Position (CKP) Sensor
- Removal and Installation of CMP sensor
- Removal of Camshaft Position (CMP) Sensor
- Installation of Camshaft Position (CMP) Sensor
- Inspection of Camshaft Position (CMP) Sensor
- Removal and Installation of Oil Pressure Sensor
- Removal of Oil Pressure Sensor
- Installation 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 MAF and IAT sensor
- Removal of MAF and IAT sensor
- Installation of MAF and IAT sensor
- Inspection of MAF and IAT 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 EGR Gas Temperature Sensor 3
- Removal of EGR Gas Temperature Sensor 3
- Installation of EGR Gas Temperature Sensor 3
- Inspection of EGR Gas Temperature Sensor 3
- Removal and installation of EGR Gas Temperature Sensor 4
- Removal of EGR Gas Temperature Sensor 4
- Installation of EGR Gas Temperature Sensor 4
- Inspection of EGR Gas Temperature Sensor 4
- 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
- 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 Cut Control
- 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
- Remote Control Valves (upper, travel)
- Cushion Valve
- 2-way selector Valve
- Reducing valve (6-line)
- Manifold Under Cab
- Manifold (accumulator)
- manifold
- Hydraulic Pump
- Type Indication
- Specifications
- Structure and Operation Explanation
- Hydraulic circuit diagram
- Hydraulic Pump Internal Structure Diagram
- Regulator
- Hydraulically-operated fan pump
- How to handle
- Decal
- Structure
- Causes of Failures, and Actions
- Hydraulically-operated fan motor
- External shape diagram
- Internal Structure Diagram
- Operation Explanation
- 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
- Removal and Installation of Hydraulic Reservoir
- 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 side)
- Installation of Operation Remote Control Valve (left side)
- Removal of Operation Remote Control Valve (right side)
- Installation of Operation Remote Control Valve (right side)
- Removal and Installation of 5 Stack Solenoid Valve
- 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
- Removal and Installation of Hydraulically-Operated Fan Pump
- Removal of Hydraulically-Operated Fan Pump
- Installation of Hydraulically-Operated Fan Pump
- Removal and Installation of Hydraulically-Operated Fan Motor
- Removal of Hydraulically-Operated Fan Motor
- Installation of Hydraulically-Operated Fan Motor
- Procedures for Assembly and Disassembly of Hydraulic Pump Main Unit
- Tools
- Disassembly Procedure
- Assembly Procedure
- Pump Main Unit Maintenance Standards
- Replacement Standard of Wear Component
- Standards for repairing cylinders, valve plates, and swash plates (shoe plates)
- Tightening torque
- Overall View
- Causes of Failures, and Actions
- Regulator Maintenance Standards
- Regulator Adjustment
- Appendix Table and Drawings
- Regulator Assembly and Disassembly Procedures
- Assembly and Disassembly of Control Valve
- Caution for Disassembly
- Specialty jigs
- Basic Configuration
- Disassembly and Assembly of Components
- Maintenance Standards
- Causes of Failures, and Actions
- 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
- 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 Port
- 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
- 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 Left-side Layout Diagram (Pump Chamber)
- Main Unit Right-side Layout Diagram
- 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 WAVES Controller
- Removal of WAVES Controller
- Installation of WAVES Controller
- How to set WAVES
- 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
- 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 TOYO)
- 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 the 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
- Changes from Model -5
- Overall Layout
- Lower
- Engine
- Hydraulic-related Data
- Hydraulic Control
- Cab, House
- Electrical Data
- Electric Control
- Attachments
- Specifications (750X4)
- ENGINE
- HYDRAULIC SYSTEM
- HYDRAULIC CONTROLS
- ELECTRICAL SYSTEM
- OPERATOR ENVIRONMENT
- UNDERCARRIAGE
- MASS
- DIGGING FORCE (with 2.9 m3 Sumitomo Bucket) (ISO 6015)
- DIMENSIONS
- WORKING RANGES
- SYSTEM FLUID CAPACITIES AND SPECIFICATIONS
- Specifications (750X4) (Large Soil Volume)
- ENGINE
- HYDRAULIC SYSTEM
- HYDRAULIC CONTROLS
- ELECTRICAL SYSTEM
- OPERATOR ENVIRONMENT
- UNDERCARRIAGE
- MASS
- DIGGING FORCE (with 4.0 m3 Sumitomo Bucket) (ISO 6015)
- DIMENSIONS
- WORKING RANGES
- SYSTEM FLUID CAPACITIES AND SPECIFICATIONS
- Arm Dimension
- Standard Arm [3.55 m (11.6470 ft.)]
- Short Arm [3.02 m (9.9081 ft.)]
- Long Arm [4.11 m (13.4843 ft.)]
- Ultra-Long Arm [5.00 m (16.4042 ft.)]
- Main Unit Weight
- Divided Weight
- Stand Alone Part Weight
- Shoe Weight (per Side)
- Arm Weight
- Bolt Size and Torque Table
- Overall View
- 750X4
- 750X4 (Large Soil Volume)
- WORK RANGE DIAGRAM
- 750X4
- 750X4 (Large Soil Volume)
- 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 Press) Abnormality
- Diagnostic Trouble Code: 7075 Pressure Sensor Arm Cylinder Bottom Abnormality
- Diagnostic Trouble Code: 7078 Pressure Sensor 1st Option Pilot (Back Press) 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: 7208 Fan Reverse Solenoid Signal Abnormality
- Diagnostic Trouble Code: 7212 Shutoff Solenoid Signal Abnormality
- Diagnostic Trouble Code: 7213 Quick Coupler Buzzer Abnormality
- Diagnostic Trouble Code: 7214 Quick Coupler Solenoid Abnormality
- Diagnostic Trouble Code: 7242 Fan Proportional Valve Signal 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 Defect
- Diagnostic Trouble Code: 7421 Decrease in Coolant Level
- Diagnostic Trouble Code: 7422 Decrease in Engine Oil Pressure
- 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: 7603 Controller S 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
- Abbreviation
- Disassembly and Assembly
- Assembly Procedures
- Disassembly Procedures
- Attached Documents of Assembly and Disassembly
Link Belt
