CONTENTS
SECTION 1 GENERAL
Group 1 Safety Hints ---------------------------------------------------------------------------------------------------- 1-1
Group 2 Specifications ------------------------------------------------------------------------------------------------- 1-9
SECTION 2 STRUCTURE AND FUNCTION
Group 1 Pump Device -------------------------------------------------------------------------------------------------- 2-1
Group 2 Main Control Valve ----------------------------------------------------------------------------------------- 2-9
Group 3 Swing Device ------------------------------------------------------------------------------------------------- 2-24
Group 4 Travel Device -------------------------------------------------------------------------------------------------- 2-34
Group 5 RCV Lever ------------------------------------------------------------------------------------------------------ 2-43
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 --------------------------------------------------------------------------------------------- 3-10
Group 5 Combined Operation -------------------------------------------------------------------------------------- 3-22
SECTION 4 ELECTRICAL SYSTEM
Group 1 Component Location -------------------------------------------------------------------------------------- 4-1
Group 2 Monitoring system ------------------------------------------------------------------------------------------ 4-3
Group 3 Electrical Circuit ---------------------------------------------------------------------------------------------- 4-10
Group 4 Electrical Component Specification --------------------------------------------------------------- 4-26
Group 5 Connectors ----------------------------------------------------------------------------------------------------- 4-34
SECTION 5 TROUBLESHOOTING
Group 1 Before Troubleshooting ---------------------------------------------------------------------------------- 5-1
Group 2 Hydraulic and Mechanical System ---------------------------------------------------------------- 5-4
Group 3 Electrical System ------------------------------------------------------------------------------------------- 5-24
SECTION 6 MAINTENANCE STANDARD
Group 1 Operational Performance Test ----------------------------------------------------------------------- 6-1
Group 2 Major Components ---------------------------------------------------------------------------------------- 6-21
Group 3 Track and Work Equipment ---------------------------------------------------------------------------- 6-30
SECTION 7 DISASSEMBLY AND ASSEMBLY
Group 1 Precaution ------------------------------------------------------------------------------------------------------ 7-1
Group 2 Tightening Torque ------------------------------------------------------------------------------------------ 7-4
Group 3 Pump Device -------------------------------------------------------------------------------------------------- 7-7
Group 4 Main Control Valve ----------------------------------------------------------------------------------------- 7-38
Group 5 Swing Device ------------------------------------------------------------------------------------------------- 7-54
Group 6 Travel Device -------------------------------------------------------------------------------------------------- 7-75
Group 7 RCV Lever ------------------------------------------------------------------------------------------------------ 7-101
Group 8 Turning Joint --------------------------------------------------------------------------------------------------- 7-115
Group 9 Boom, Arm and Bucket Cylinder -------------------------------------------------------------------- 7-120
Group 10 Undercarriage ------------------------------------------------------------------------------------------------ 7-139
Group 11 Work Equipment -------------------------------------------------------------------------------------------- 7-151
SECTION 8 COMPONENT MOUNTING TORQUE
Group 1 Introduction Guide ------------------------------------------------------------------------------------------ 8-1
Group 2 Engine System ----------------------------------------------------------------------------------------------- 8-2
Group 3 Electric System ---------------------------------------------------------------------------------------------- 8-4
Group 4 Hydraulic System ------------------------------------------------------------------------------------------- 8-5
Group 5 Undercarriage ------------------------------------------------------------------------------------------------ 8-7
Group 6 Structure --------------------------------------------------------------------------------------------------------- 8-8
Group 7 Work Equipment -------------------------------------------------------------------------------------------- 8-10
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Hyundai Crawler Excavator Robex 55-7A R55-7A Service Manual
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Description
The service manual is an essential resource for both professional mechanics and DIY enthusiasts, providing accurate technical information for the Hyundai Robex 55-7A R55-7A Crawler Excavator. It covers a wide range of topics, including safety hints, specifications, hydraulic and electrical systems, troubleshooting, maintenance standards, disassembly and assembly, and component mounting torque.
With detailed substeps, notes, cautions, and warnings, this manual offers step-by-step instructions for repair procedures, supported by numerous photos, illustrations, and diagrams. It is designed to assist in diagnosing and repairing electrical system issues, making it a valuable tool for maintaining the machine's optimal performance.
Available in Adobe Acrobat Document (.PDF) format, this manual is accessible on all versions of Windows and Mac operating systems. Upon payment, users gain instant access to the manual, eliminating the need for shipping and allowing for immediate utilization.
- Product Type: Industrial Engines
- Brand: Hyundai
- Specifications:
- Model: Robex 55-7A R55-7A
- Type: Crawler Excavator
- Language: English
- Format: Adobe Acrobat Document (.PDF)
- Compatibility: All Versions of Windows & Mac
