Hyundai R140W-7A Wheel Excavator Service Manual
TABLE OF CONTENTS:
Hyundai R140W-7A Wheel Excavator Service Manual
WHEELED EXCAVATOR R140W-7A |
FOREWORD | ||||
SECTION 1 | ||||
GENERAL | ||||
Group 1 | Safety Hints | |||
Group 2 | Specifications | |||
SECTION 2 | ||||
STRUCTURE AND FUNCTION | ||||
Group 1 | Pump Device | |||
Group 2 | Main Control Valve | |||
Group 3 | Swing Device | |||
Group 4 | Travel Device | |||
Group 5 | RCV Lever | |||
Group 6 | Accelerator Pedal | |||
Group 7 | Brake Pedal | |||
Group 8 | Transmission | |||
Group 9 | Travel control valve | |||
Group 10 | Steering Valve | |||
SECTION 3 | ||||
HYDRAULIC SYSTEM | ||||
Group 1 | Hydraulic Circuit | |||
Group 2 | Main Circuit | |||
Group 3 | Pilot Circuit | |||
Group 4 | Single Operation | |||
Group 5 | Combined Operation | |||
SECTION 4 | ||||
ELECTRICAL SYSTEM | ||||
Group 1 | Component Location | |||
Group 2 | Electrical Circuit | |||
Group 3 | Electrical Component Specification | |||
Group 4 | Connectors | |||
SECTION 5 | ||||
MECHATROMICS SYSTEM | ||||
Group 1 | Outline | |||
Group 2 | Mode selection System | |||
Group 3 | Automatic Deceleration System | |||
Group 4 | Power Boost System | |||
Group 5 | Travel Speed Control System | |||
Group 6 | Automatic Warming Up Function | |||
Group 7 | Engine Overheat Prevention Function | |||
Group 8 | Anti-Restart System | |||
Group 9 | Self-Diagnostic System | |||
Group 10 | Engine Control System | |||
Group 11 | EPPR(Electro Proportional Pressure Reducing) Valve | |||
Group 12 Group 13 | Monitoring System Fuel warmer System | |||
SECTION 6 | ||||
TROUBLESHOOTING | ||||
Group 1 | Before troubleshooting | |||
Group 2 | Hydraulic and Mechanical System | |||
Group 3 | Electrical System | |||
Group 4 | Mechatronics System | |||
SECTION 7 | ||||
MAINTENANCE STANDARD | ||||
Group 1 | Operational Performance Test | |||
Group 2 | Major Components | |||
Group 3 | Work Equipment | |||
SECTION 8 | ||||
DISASSEMBLY AND ASSEMBLY | ||||
Group 1 | Precaution | |||
Group 2 | Tightening Torque | |||
Group 3 | Pump Device | |||
Group 4 | Main Control Valve | |||
Group 5 | Swing Device | |||
Group 6 | Travel Motor | |||
Group 7 | Transmission | |||
Group 8 | Steering Valve | |||
Group 9 | Front Axle and Rear Axle | |||
Group 10 | RCV Lever | |||
Group 11 | Turning Joint | |||
Group 12 | Boom, Arm, Bucket, Dozer and Outrigger Cylinders | |||
Group 13 | Work Equipment | |||
SECTION 9 | ||||
COMPONENT MOUNTING TORQUE | ||||
Group 1 | Introduction guide | |||
Group 2 | Engine system | |||
Group 3 | Electric system | |||
Group 4 | Hydraulic system | |||
Group 5 | Power train system | |||
Group 6 | Structure | |||
Group 7 | Work equipment |
DESCRIPTION:
Hyundai R140W-7A Wheel Excavator Service Manual
1. STRUCTURE
This service manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This service manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following sections.
SECTION 1 GENERAL:
This section explains the safety hints and gives the specification of the machine and major components.
SECTION 2 STRUCTURE AND FUNCTION:
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.
SECTION 3 HYDRAULIC SYSTEM:
This section explains the hydraulic circuit, single and combined operation.
SECTION 4 ELECTRICAL SYSTEM:
This section explains the electrical circuit, monitoring system and each component. It serves not only to give an understanding electrical system, but also serves as reference material for trouble shooting.
SECTION 5 MECHATRONICS SYSTEM:
This section explains the computer aided power optimization system and each component.
SECTION 6 TROUBLESHOOTING:
This section explains the troubleshooting charts correlating problems to causes.
SECTION 7 MAINTENANCE STANDARD:
This section gives the judgement standards when inspecting disassembled parts.
SECTION 8 DISASSEMBLY AND ASSEMBLY:
This section explains the order to be followed when removing, installing, disassembling or assembling
each component, as well as precautions to be taken for these operations.
SECTION 9 COMPONENT MOUNTING TORQUE:
- This section shows bolt specifications and standard torque values needed when mounting components to the machine.
- The specifications contained in this shop manual are subject to change at any time and without any advance notice. Contact your HYUNDAI distributor for the latest information
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