Hyundai HX430L User Manual

CONTENTS
SECTION 1 GENERAL
Group 1 Safety Hints - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
Group 2 Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-10
SECTION 2 STRUCTURE AND FUNCTION
Group 1 Pump Device - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Group 2 Main Control Valve - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-20
Group 3 Swing Device
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-46
Group 4 Travel Device
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-58
Group 5 RCV Lever - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-72
Group 6 RCV Pedal
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-79
SECTION 3 HYDRAULIC SYSTEM
Group 1 Hydraulic Circuit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
Group 2 Main Circuit
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2
Group 3 Pilot Circuit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5
Group 4 Single Operation
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-14
Group 5 Combined Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-24
SECTION 4 ELECTRICAL SYSTEM
Group 1 Component Location - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Group 2 Electric Circuit
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3
Group 3 Electrical Component Specification
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-23
Group 4 Connectors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-34
SECTION 5 MECHATRONICS SYSTEM
Group 1 Outline - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Group 2 Mode selection System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-3
Group 3 Automatic Deceleration System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-6
Group 4 Power Boost System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-7
Group 5 Travel Speed Control System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-8
Group 6 Automatic Warming Up System
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-9
Group 7 Engine Overheat Prevention System
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-10
Group 8 Variable power Control System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-11
Group 9 Attachment Flow Control System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-12
Group 10 Boom Floating Control System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-13

Hyundai HX430L Specifications

General

Brand	Hyundai
Model	HX430L
Category	Excavators
Language	English

Summary

SECTION 1 GENERAL

Group 1 Safety Hints

Safety guidelines and precautions for operating the machine.

Group 2 Specifications

Technical specifications and dimensions of the machine and its major components.

SECTION 2 STRUCTURE AND FUNCTION

Group 1 Pump Device

Details on the structure and function of the pump device, including its components.

Group 2 Main Control Valve

Explanation of the main control valve's structure and function for hydraulic system operation.

Group 3 Swing Device

Information on the structure and function of the swing device, a key component for rotation.

Group 4 Travel Device

Description of the structure and function of the travel device responsible for machine movement.

Group 5 RCV Lever

Details on the structure and function of the RCV lever used for machine control.

Group 6 RCV Pedal

Explanation of the structure and function of the RCV pedal for machine operation.

SECTION 3 HYDRAULIC SYSTEM

Group 1 Hydraulic Circuit

Overview of the hydraulic circuit, including its main components and flow paths.

Group 2 Main Circuit

Detailed explanation of the main hydraulic circuit and its operational principles.

Group 3 Pilot Circuit

Description of the pilot circuit, which controls hydraulic operations via pilot pressure.

Group 4 Single Operation

Explanation of hydraulic operations performed by individual components.

Group 5 Combined Operation

Details on hydraulic operations involving multiple components working together.

SECTION 4 ELECTRICAL SYSTEM

Group 1 Component Location

Identification and location of electrical components within the machine.

Group 2 Electrical Circuit

Diagram and explanation of the machine's electrical circuits.

Group 3 Electrical Component Specification

Technical specifications for various electrical components used in the system.

Group 4 Connectors

Information on electrical connectors, including their types and pin assignments.

SECTION 5 MECHATRONICS SYSTEM

Group 1 Outline

General overview of the mechatronics system and its integrated functions.

Group 2 Mode Selection System

Explanation of how to select and operate different machine modes.

Group 3 Automatic Deceleration System

Description of the system that automatically reduces engine speed to save fuel.

Group 4 Power Boost System

Details on the power boost system that enhances digging power and performance.

Group 5 Travel Speed Control System

Explanation of the system used to control and switch travel speeds.

Group 6 Automatic Warming Up System

Description of the system that automatically warms up the engine to optimal operating conditions.

Group 7 Engine Overheat Prevention System

Information on the system designed to prevent engine overheating and potential damage.

Group 8 Variable Power Control System

Explanation of the system that optimizes engine and pump power for various work conditions.

Group 9 Attachment Flow Control System

Details on the system that controls hydraulic flow to attachments based on work tool selection.

Group 10 Boom Floating Control System

Explanation of the system that automatically controls boom movement for stable operation.

Group 11 Intelligent Power Control System

Description of the system that optimizes engine and pump power for fuel efficiency.

Group 12 Anti-Restart System

Information on the system that prevents inadvertent starter operation.

Group 13 Self-Diagnostic System

Overview of the system for diagnosing malfunctions and displaying error codes.

Group 14 Engine Control System

Details on the ECM's role in controlling engine functions and performance.

Group 15 EPPR Valve

Explanation of the EPPR valve's function in regulating hydraulic pressure.

Group 16 Monitoring System

Description of the system that monitors machine conditions and provides warnings.

Group 17 Fuel Warmer System

Information on the system that prevents fuel from freezing in cold temperatures.

SECTION 6 TROUBLESHOOTING

Group 1 Before Troubleshooting

Preliminary steps and considerations before starting the troubleshooting process.

Group 2 Hydraulic and Mechanical System

Troubleshooting procedures for hydraulic and mechanical system issues.

Group 3 Electrical System

Troubleshooting steps for problems related to the electrical system.

Group 4 Mechatronics System

Troubleshooting procedures for issues within the mechatronics system.

SECTION 7 MAINTENANCE STANDARD

Group 1 Operational Performance Test

Procedures for testing the machine's operational performance after service or repair.

Group 2 Major Components

Maintenance standards and inspection items for key machine components.

Group 3 Track and Work Equipment

Maintenance standards for the undercarriage and work equipment.

SECTION 8 DISASSEMBLY AND ASSEMBLY

Group 1 Precaution

Important safety precautions and general instructions for disassembly and assembly.

Group 2 Tightening Torque

Specifications for tightening torque values for various bolts and components.

Group 3 Pump Device

Procedures for disassembling and assembling the hydraulic pump device.

Group 4 Main Control Valve

Steps for disassembling and assembling the main control valve.

Group 5 Swing Device

Procedures for the disassembly and assembly of the swing device.

Group 6 Travel Device

Steps for disassembling and assembling the travel device.

Group 7 RCV Lever

Procedures for the removal and installation of the RCV lever.

Group 8 Turning Joint

Steps for the disassembly and assembly of the turning joint.

Group 9 Boom, Arm and Bucket Cylinder

Procedures for the removal and installation of boom, arm, and bucket cylinders.

Group 10 Undercarriage

Disassembly and assembly procedures for the undercarriage components.

Group 11 Work Equipment

Steps for disassembling and assembling the work equipment components.

SECTION 9 COMPONENT MOUNTING TORQUE

Group 1 Introduction guide

General guidelines for component mounting torque and the use of genuine parts.

Group 2 Engine system

Tightening torque specifications for engine and accessories mounting.

Group 3 Electric system

Mounting torque specifications for electrical components.

Group 4 Hydraulic system

Tightening torque specifications for hydraulic components.

Group 5 Undercarriage

Mounting torque specifications for undercarriage components.

Group 6 Structure

Tightening torque specifications for structural components.

Group 7 Work equipment

Mounting torque specifications for work equipment components.