Hyundai Robex 320LC-9 Service Manual
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Hyundai Robex 320LC-9 Service Manual

Crawler excavator
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Robex 320LC-9
CRAWLER EXCAVATOR
SERVICE MANUAL

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Summary of Contents for Hyundai Robex 320LC-9

  • Page 1 Robex 320LC-9 CRAWLER EXCAVATOR SERVICE MANUAL...

  • Page 2: Table Of Contents

    TABLE OF CONTENT FOREWORD 1. Structure 2. How To Read The Service Manual 3. Conversion Table SECTION 1 GENERAL Group 1 Safety Group 2 Specifications 1. Major Component 2. Specifications 3. Working Range 4. Weight 5. Lifting Capacities 6. Bucket Selection Guide 7.
  • Page 3 Group 2 Main Circuit 1. Suction And Delivery Circuit 2. Return Circuit 3. Drain Circuit Group 3 Pilot Circuit 1. Suction, Delivery And Return Circuit 2. Safety Valve (safety Lever) 3. Boom Priority System 4. Travel Speed Control System 5. Main Relief Pressure Change Circuit 6.
  • Page 4 Group 4 Connectors 1. Connector Destination 2. Connection Table For Connectors SECTION 5 MECHATRONICS SYSTEM Group 1 Outline Group 2 Mode Selection System 1. Power Mode Selection System 2. Work Mode Selection System 3. User Mode Selection System Group 3 Automatic Deceleration System 1.
  • Page 5 3. Hydraulic System 4. Swing System 5. Travel System 6. Attachment System Group 3 Electrical System 1. When Starting Switch Is Turned On, Monitor Panel Display Does Not Appear 3. Battery Charging Warning Lamp Lights Up(starting Switch : On) 4. When Coolant Overheat Warning Lamp Lights Up (engine Is Started) 5.
  • Page 6 1. Main Pump 2. Main Control Valve 3. Swing Device 4. Travel Motor 5. Rcv Lever 6. Rcv Pedal 7. Turning Joint 8. Cylinder Group 3 Track And Work Equipment 1. Track 2. Work Equipment SECTION 8 DISASSEMBLY AND ASSEMBLY Group 1 Precautions 1.
  • Page 7 2. Disassembly And Assembly Group 9 Boom, Arm And Bucket Cylinder 1. Removal And Install 2. Disassembly And Assembly Group 10 Undercarriage 1. Track Link 2. Carrier Roller 3. Track Roller 4. Idler And Recoil Spring Group 11 Work Equipment 1.

  • Page 8: Foreword

    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. Find manuals at https://best-manuals.com...

  • Page 9: How To Read The Service Manual

    Revised edition mark(①②③…) Any additions, amendments or other changes will When a manual is revised, an edition mark is be sent to HYUNDAI distributors. recorded on the bottom outside corner of the Get the most up-to-date information before you pages.

  • Page 10: Conversion Table

    3. CONVERSION TABLE 3. CONVERSION TABLE Method of using the Conversion Table The Conversion Table in this section is provided to enable simple conversion of figures. For details of the method of using the Conversion Table, see the example given below. Example Example Method of using the Conversion Table to convert from millimeters to inches...
  • Page 11 Millimeters to inches Millimeters to inches 1mm = 0.03937in 0.039 0.079 0.118 0.157 0.197 0.236 0.276 0.315 0.354 0.394 0.433 0.472 0.512 0.551 0.591 0.630 0.669 0.709 0.748 0.787 0.827 0.866 0.906 0.945 0.984 1.024 1.063 1.102 1.142 1.181 1.220 1.260 1.299 1.339...
  • Page 12 Liter to U.S. Gallon Liter to U.S. Gallon 1ℓ = 0.2642 U.S.Gal 0.264 0.528 0.793 1.057 1.321 1.585 1.849 2.113 2.378 2.642 2.906 3.170 3.434 3.698 3.963 4.227 4.491 4.755 5.019 5.283 5.548 5.812 6.6076 6.340 6.604 6.869 7.133 7.397 7.661 7.925 8.189...
  • Page 13 kgf·m to to lbf lbf·ft ft 1kgf·m = 7.233lbf·ft 14.5 21.7 28.9 36.2 43.4 50.6 57.9 65.1 72.3 79.6 86.8 94.0 101.3 108.5 115.7 123.0 130.2 137.4 144.7 151.9 159.1 166.4 173.6 180.8 188.1 195.3 202.5 209.8 217.0 224.2 231.5 238.7 245.9 253.2...
  • Page 14 kgf/cm kgf/cm to to lbf/in lbf/in 1kgf / cm = 14.2233lbf / in 14.2 28.4 42.7 56.9 71.1 85.3 99.6 113.8 128.0 142.2 156.5 170.7 184.9 199.1 213.4 227.6 241.8 256.0 270.2 284.5 298.7 312.9 327.1 341.4 355.6 369.8 384.0 398.3 412.5 426.7...
  • Page 15 TEMPERATURE TEMPERATURE Fahrenheit-Centigrade Conversion. A simple way to convert a fahrenheit temperature reading into a centigrade temperature reading or vice verse is to enter the accompanying table in the center or boldface column of figures. These figures refer to the temperature in either Fahrenheit or Centigrade degrees. If it is desired to convert from Fahrenheit to Centigrade degrees, consider the center column as a table of Fahrenheit temperatures and read the corresponding Centigrade temperature in the column at the left.

  • Page 16: Section 1 General

    SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints -------------------------------------------------------------------------------------------------------- 1-1 Group 2 Specifications ----------------------------------------------------------------------------------------------------- 1-10...

  • Page 17: Group 1 Safety

    SECTION 1 GENERAL SECTION 1 GENERAL GROUP 1 SAFETY GROUP 1 SAFETY FOLLOW SAFE PROCEDURE FOLLOW SAFE PROCEDURE Unsafe wor k practices are dangerous. Understand service procedure before doing work; Do not attempt shortcuts. WEAR PROTECTIVE CLOTHING WEAR PROTECTIVE CLOTHING Wear close fitting clothing and safety equipment appropriate to the job.
  • Page 18 PREPARE FOR EMERGENCIES PREPARE FOR EMERGENCIES Be prepared if a fire starts. Keep a first aid kit and fire extinguisher handy. Keep emergency numbers for doctors, ambulance ser vice, hospital, and fire department near your telephone. 13031GE04 PROTECT AGAINST FLYING DEBRIS PROTECT AGAINST FLYING DEBRIS Guard against injury from flying pieces of metal or debris;...
  • Page 19 KEEP RIDERS OFF EXCAVATOR KEEP RIDERS OFF EXCAVATOR Only allow the operator on the excavator. Keep riders off. Riders on excavator are subject to injury such as being struck by foreign objects and being thrown off the excavator. Riders also obstruct the operator's view resulting in the excavator being operated in an unsafe manner.
  • Page 20 SUPPORT MACHINE PROPERLY SUPPORT MACHINE PROPERLY Always lower the attachment or implement to the ground before you work on the machine. If you must wor k on a lifted machine or attachment, securely support the machine or attachment. Do not support the machine on cinder blocks, hollow tiles, or props that may crumble under 13031GE10 continuous load.
  • Page 21 BEWARE OF EXHAUST FUMES BEWARE OF EXHAUST FUMES Prevent asphyxiation. Engine exhaust fumes can cause sickness or death. If you must operate in a building, be positive there is adequate ventilation. Either use an exhaust pipe extension to remove the exhaust fumes or open doors and windows to bring enough outside air into the area.
  • Page 22 SERVICE MACHINE SAFELY SERVICE MACHINE SAFELY Tie long hair behind your head. Do not wear a necktie, scarf, loose clothing or necklace when you work near machine tools or moving parts. If these items were to get caught, severe injury could result.
  • Page 23 AVOID HEATING NEAR PRESSURIZED AVOID HEATING NEAR PRESSURIZED FLUID LINES FLUID LINES Flammable spray can be generated by heating near pressurized fluid lines, resulting in severe burns to yourself and bystanders. Do not heat by welding, soldering, or using a torch near pressurized fluid lines or other flammable materials.
  • Page 24 PREVENT ACID BURNS PREVENT ACID BURNS Sulfuric acid in battery electrolyte is poisonous. It is strong enough to burn skin, eat holes in clothing, and cause blindness if splashed into eyes. Avoid the hazard by: 1. Filling batteries in a well-ventilated area. 2.
  • Page 25 DISPOSE OF FLUIDS PROPERLY DISPOSE OF FLUIDS PROPERLY Improperly disposing of fluids can harm the environment and ecology. Before draining any fluids, find out the proper way to dispose of waste from your local environmental agency. Use proper containers when draining fluids. Do not use food or beverage containers that may mislead someone into drinking from them.

  • Page 26: Group 2 Specifications

    GROUP 2 SPECIFICATIONS GROUP 2 SPECIFICATIONS 1. MAJOR COMPONENT 1. MAJOR COMPONENT Battery box Fuel tank Hydraulic tank Main pump Engine Oil cooler Radiator Tooth Bucket Turning joint Swing motor Main control valve Counterweight Arm cylinder Boom Boom cylinder Muffler Bucket cylinder Connecting link Idler...

  • Page 27: Specifications

    2. SPECIFICATIONS 2. SPECIFICATIONS 1) 1) R320LC-9 R320LC-9 ·6.45 6.45 m m (21' 2") BOOM and 3.20 (21' 2") BOOM and 3.20 m m (10' 6") ARM (10' 6") ARM I(I') B(L) 32092SP02 Description Unit Specification Operating weight kg (lb) 33000 (72750) Bucket capacity (SAE heaped), standard 1.44 (1.88)
  • Page 28 2) 2) R320NLC-9 R320NLC-9 ·6.45 6.45 m m (21' 2") BOOM and 3.20 (21' 2") BOOM and 3.20 m m (10' 6") ARM (10' 6") ARM I(I') B(L) 32092SP03 Description Unit Specification Operating weight kg (lb) 32000 (70500) Bucket capacity (SAE heaped), standard 1.44 (1.88) Overall length 10980 (36' 0")
  • Page 29 3) 3) R320LC-9 HIGH WALKER R320LC-9 HIGH WALKER ·6.45 6.45 m m (21' 2") BOOM and 3.20 (21' 2") BOOM and 3.20 m m (10' 6") ARM (10' 6") ARM I(I') B(L) 32092SP04 Description Unit Specification Operating weight kg (lb) 34700 (76500) Bucket capacity (SAE heaped), standard 1.44 (1.88)

  • Page 30: Working Range

    3. WORKING RANGE 3. WORKING RANGE 1) 1) R320LC-9, R320NLC-9 R320LC-9, R320NLC-9 32092SP05 6.45 m (21' 2") Boom 6.15 m (20' 2") Boom Description 2.2 m (7' 3") Arm 2.5 m (8' 2") Arm 3.2 m (10' 6") Arm 4.05 m (13' 3") Arm 2.2 m (7' 3") Arm Max digging reach A 10330 mm (33'11") 10550 mm (34' 7") 11140 mm (36' 7") 11950 mm (39' 2") 10020 mm (32'10") Max digging reach on ground...
  • Page 31 2) 2) R320LC-9 HIGH WALKER R320LC-9 HIGH WALKER 32092SP06 6.45 m (21' 2") Boom 6.15 m (20' 2") Boom Description 2.2 m (7' 3") Arm 2.5 m (8' 2") Arm 3.2 m (10' 6") Arm 4.05 m (13' 3") Arm 2.2 m (7' 3") Arm Max digging reach A 10330 mm (33'11") 10550 mm (34' 7") 11140 mm (36' 7") 11950 mm (39' 2") 10020 mm (32'10") Max digging reach on ground...

  • Page 32: Weight

    4. WEIGHT 4. WEIGHT 1) 1) R320LC-9, R320NLC-9 R320LC-9, R320NLC-9 R320LC-9 R320NLC-9 Item ← ← Upperstructure assembly 14310 31550 ← ← Main frame weld assembly 3760 8290 ← ← Engine assembly 1590 ← ← Main pump assembly ← ← Main control valve assembly ←...
  • Page 33 2) 2) R320LC-9 HIGH WALKER R320LC-9 HIGH WALKER Item Upperstructure assembly 14310 31550 Main frame weld assembly 3760 8290 Engine assembly 1590 Main pump assembly Main control valve assembly Swing motor assembly Hydraulic oil tank assembly Fuel tank assembly Counterweight 6200 13670 Cab assembly...

  • Page 34: Lifting Capacities

    5. LIFTING CAPACITIES 5. LIFTING CAPACITIES 1) 1) R320LC-9 R320LC-9 6.15 m (20' 2") boom, 2.2 m (7' 3") arm equipped with 1.44 m (SAE heaped) bucket and 600 mm (24") triple grouser shoe and 6200 kg (13670 lb) counterweight. ·...
  • Page 35 6.45 m (21' 2") boom, 3.2 m (10' 6") arm equipped with 1.44 m (SAE heaped) bucket and 600 mm (24") triple grouser shoe and 6200 kg (13670 lb) counterweight. Load radius At max. reach Load 1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft) 6.0 m (20.0 ft) 7.5 m (25.0 ft) 9.0 m (30.0 ft) Capacity Reach point...
  • Page 36 2) 2) R320NLC-9 R320NLC-9 6.45 m (21' 2") boom, 3.2 m (10' 6") arm equipped with 1.44 m (SAE heaped) bucket and 600 mm (24") triple grouser shoe and 6200 kg (13670 lb) counterweight. Load radius At max. reach Load 1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft) 6.0 m (20.0 ft) 7.5 m (25.0 ft) 9.0 m (30.0 ft) Capacity Reach...
  • Page 37 3) 3) R320LC-9 R320LC-9 HIGH WALKER HIGH WALKER 6.45 m (21' 2") boom, 3.2 m (10' 6") arm equipped with 1.44 m (SAE heaped) bucket and 600 mm (24") triple grouser shoe and 6200 kg (13670 lb) counterweight. Load radius At max.

  • Page 38: Bucket Selection Guide

    6. BUCKET SELECTION GUIDE 6. BUCKET SELECTION GUIDE GENERAL BUCKET GENERAL BUCKET ※1.44 m 0.9 m 1.14 m 1.74 m 2.10 m heaped bucket heaped bucket heaped bucket heaped bucket heaped bucket Recommendation Capacity Width 6.15 m (20' 2") 6.45 m (21' 2") boom boom Weight CECE...
  • Page 39 2) 2) ROCK AND HEAVY DUTY BUCKET ROCK AND HEAVY DUTY BUCKET ⊙1.44 m ◈1.44 m ⊙1.73 m heaped bucket heaped bucket Recommendation Capacity Width 6.15 m (20' 2") 6.45 m (21' 2") boom boom Weight CECE Without With 2.2 m arm 2.5 m arm 3.2 m arm 4.05 m arm...

  • Page 40: Undercarriage

    7. UNDERCARRIAGE 7. UNDERCARRIAGE 1) 1) TRACKS TRACKS X-leg type center frame is integrally welded with reinforced box-section track frames. The design includes dry tracks, lubricated rollers, idlers, sprockets, hydraulic track adjusters with shock absorbing springs and assembled track-type tractor shoes with triple grousers. 2) 2) TYPES OF SHOES TYPES OF SHOES...
  • Page 41 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

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