Hyundai Robex 330LC-9A Service Manual
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Hyundai Robex 330LC-9A Service Manual

Crawler excavator
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Robex 330LC-9A
CRAWLER EXCAVATOR
SERVICE MANUAL

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  • Page 1 Robex 330LC-9A 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 2. Functions Group 6 Rcv Pedal 1. Structure 2. Function SECTION 3 HYDRAULIC SYSTEM Group 1 Hydraulic Circuit 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.
  • Page 4 1. Power Circuit 2. Starting Circuit 3. Charging Circuit 4. Head And Work Light Circuit 5. Beacon Lamp And Cab Light Circuit 6. Wiper And Washer Circuit Group 3 Electrical Component Specification Group 4 Connectors 1. Connector Destination 2. Connection Table For Connectors SECTION 5 MECHATRONICS SYSTEM Group 1 Outline Group 2 Mode Selection System...
  • Page 5 2. Operation 3. Electric Circuit SECTION 6 TROUBLESHOOTING Group 1 Before Troubleshooting 1. Introduction 2. Diagnosing Procedure Group 2 Hydraulic And Mechanical System 1. Introduction 2. Drive System 3. Hydraulic System 4. Swing System 5. Travel System 6. Attachment System Group 3 Electrical System 1.
  • Page 6 10. Malfunction Of Negative 2 Pressure Sensor 11. Malfunction Of Swing Pressure Sensor 12. Malfunction Of Arm In/out & Bucket In Pressure Sensor 13. Malfunction Of Boom Up Pressure Sensor 14. Malfunction Of Power Max 15. Malfunction Of Boom Priority Eppr Valve 16.
  • Page 7 3. Removal And Install Of Reduction Gear 4. Reduction Gear Group 5 Swing Device (type 2) 1. Removal And Install Of Motor 2. Swing Motor 3. Removal And Install Of Reduction Gear 4. Reduction Gear Group 6 Travel Device 1. Removal And Install 2.

  • 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 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 Method of using the Conversion Table to convert from millimeters to inches Convert 55mm into inches.
  • Page 11 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 1.378 1.417 1.457...
  • Page 12 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 8.454 8.718 8.982 9.246...
  • Page 13 kgf·m to lbf·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 94.0 101.3 108.5 115.7 123.0 130.2 137.4 144.7 151.9 159.1 166.4 173.6 180.8 188.1 195.3 202.5 209.8 217.0 224.2 231.5 238.7 245.9 253.2 260.4 267.6 274.9...
  • Page 14 kgf/cm to lbf/in 1kgf / cm = 14.2233lbf / in 14.2 28.4 42.7 56.9 71.1 85.3 99.6 113.8 128.0 142.2 156.5 170.7 184.9 199.1 213.4 227.6 241.8 256.0 270.2 284.5 298.7 312.9 327.1 341.4 355.6 369.8 384.0 398.3 412.5 426.7 440.9 455.1 469.4...
  • Page 15 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 Group 1 Safety Hints -------------------------------------------------------------------------------------------------------- 1-1 Group 2 Specifications ----------------------------------------------------------------------------------------------------- 1-10...

  • Page 17: Group 1 Safety

    SECTION 1 GENERAL GROUP 1 SAFETY FOLLOW SAFE PROCEDURE Unsafe wor k practices are dangerous. Understand service procedure before doing work; Do not attempt shortcuts. WEAR PROTECTIVE CLOTHING Wear close fitting clothing and safety equipment appropriate to the job. 13031GE01 WARN OTHERS OF SERVICE WORK Unexpected machine movement can cause serious injury.
  • Page 18 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 Guard against injury from flying pieces of metal or debris;...
  • Page 19 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 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 continuous load.
  • Page 21 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 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. Remove rings and other jewelry to prevent electrical shorts and entanglement in moving parts.
  • Page 23 AVOID HEATING NEAR PRESSURIZED 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 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. Wearing eye protection and rubber gloves. 3.
  • Page 25 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 1. MAJOR COMPONENT Battery box Fuel tank Hydraulic tank Main pump After treatment device Engine Radiator Main control valve Oil cooler Tooth Bucket Turning joint Swing motor Arm cylinder Boom Boom cylinder Counterweight Bucket cylinder Connecting link Idler Carrier roller Sprocket...

  • Page 27: Specifications

    2. SPECIFICATIONS R330LC-9A ·6.45 m (21' 2") BOOM and 3.20 m (10' 6") ARM I(I') B(L) 3309A2SP02 Description Unit Specification Operating weight kg (lb) 33000 (72750) Bucket capacity (SAE heaped), standard 1.44 (1.88) Overall length 11220 (36' 10") Overall width, with 600 mm shoe 3280 (10' 9") Overall height 3380 (11' 1")
  • Page 28 R330NLC-9A ·6.45 m (21' 2") BOOM and 3.20 m (10' 6") ARM I(I') B(L) 3309A2SP03 Description Unit Specification Operating weight kg (lb) 32800 (72310) Bucket capacity (SAE heaped), standard 1.44 (1.88) Overall length 11220 (36' 10") Overall width, with 600 mm shoe 2990 ( 9' 10") Overall height 3380 (11' 1")
  • Page 29 R330LC-9A HIGH WALKER ·6.45 m (21' 2") BOOM and 3.20 m (10' 6") ARM I(I') B(L) 3309A2SP04 Description Unit Specification Operating weight kg (lb) 35500 (78260) Bucket capacity (SAE heaped), standard 1.44 (1.88) Overall length 11150 (36' 7") Overall width, with 600 mm shoe 3470 (11' 5") Overall height 3360 (11' 0")

  • Page 30: Working Range

    3. WORKING RANGE 3. WORKING RANGE 1) 1) R330LC-9A, R330NLC-9A R330LC-9A, R330NLC-9A 3309A2SP05 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) R330LC-9A HIGH WALKER R330LC-9A HIGH WALKER 3309A2SP06 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 R330LC-9A, R330NLC-9A R330LC-9A R330NLC-9A Item Upperstructure assembly 15110 33310 ← ← Main frame weld assembly 3910 8620 ← ← Engine assembly 1560 ← ← Main pump assembly ← ← Main control valve assembly ← ← Swing motor assembly ←...
  • Page 33 R330LC-9A HIGH WALKER Item Upperstructure assembly 15110 33310 Main frame weld assembly 3910 8620 Engine assembly 1560 Main pump assembly Main control valve assembly Swing motor assembly Hydraulic oil tank assembly Fuel tank assembly Counterweight 6000 13230 Cab assembly Radiator assy Oil cooler assy Lower chassis assembly 14000...

  • Page 34: Lifting Capacities

    5. LIFTING CAPACITIES R330LC-9A 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. : Rating over-front : Rating over-side or 360 degree · · Load radius At max.
  • Page 35 R330NLC-9A 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. : Rating over-front : Rating over-side or 360 degree · · 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...
  • Page 36 R330LC-9A 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. : Rating over-front : Rating over-side or 360 degree · · Load radius At max.

  • Page 37: Bucket Selection Guide

    6. BUCKET SELECTION GUIDE GENERAL BUCKET 0.9 m 1.14 m 1.44 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 Without With...
  • Page 38 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 2.2 m arm heaped...

  • Page 39: Undercarriage

    7. UNDERCARRIAGE 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. TYPES OF SHOES Triple grouser Model Shapes...
  • Page 40 SELECTION OF TRACK SHOE Suitable track shoes should be selected according to operating conditions. Method of selecting shoes Confirm the category from the list of applications in table 2, then use table 1 to select the shoe. Wide shoes (categories B and C) have limitations on applications. Before using wide shoes, check the precautions, then investigate and study the operating conditions to confirm if these shoes are suitable.

  • Page 41: Specifications For Major Components

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