Description
Doosan DX340LC-5 DX350LC-5 Excavator Shop Manual 950106-01001E – April 2014
This Doosan DX340LC-5 DX350LC-5 Excavator Shop Manual 950106-01001E – April 2014 provides detailed service and repair information for DX340LC-5 and DX350LC-5 excavators with Serial Number 10001 and Up. Across 1,631 pages, it brings together machine specifications, performance standards, component service procedures, hydraulic and electrical information, engine repair data, adjustment procedures, troubleshooting, torque specifications, attachment systems, and schematics.
The manual is organized around the excavator’s major assemblies, allowing a technician to move from machine-level specifications and testing into individual components such as the main pump, control valve, swing device, travel device, front attachment, cylinders, and electrical and hydraulic circuits. Removal, installation, disassembly, reassembly, inspection, testing, and troubleshooting information is included throughout the relevant sections.
File Details
- Manual type: Shop Manual
- Brand: DOOSAN
- Models: DX340LC-5 / DX350LC-5
- Serial coverage: 10001 and Up
- Document number: 950106-01001E
- Edition: 1st Edition
- Date: April 2014
- Language: English
- Page count: 1,631 pages
- File format: PDF
Machine Specifications and Performance Information
The specifications section of the Doosan DX340LC-5 DX350LC-5 shop manual identifies component locations and provides general dimensions for both one-piece and two-piece boom configurations. Working-range information covers different arm and bucket combinations, while general specifications include machine weights, digging forces, tank and hydraulic capacities, bucket capacity ranges, shoe choices, and ground-pressure data.
Performance testing receives its own detailed coverage. The manual explains test preparation, test-area requirements, measurement practices, and performance standards before moving into procedures for hydraulic cylinder cycle times, travel speed, track revolution speed, mistrack, swing speed, and swing drift. This gives technicians defined methods for comparing actual machine operation with the standards printed in the manual instead of relying only on subjective symptoms.
Examples of machine data included in the manual include a shipping weight of 34.9 tons (76,941 lb), a 600 liter (158.5 U.S. gal) fuel tank, 450 liter (118.8 U.S. gal) hydraulic system capacity, and 240 liter (63.4 U.S. gal) hydraulic reservoir capacity. The bucket heaped capacity range is listed as 1.25 – 2.01 m3 (1.63 – 2.63 yd3), with additional dimensional and working-range data provided for the available front configurations.
DC 9 Engine Service and Repair Coverage
A substantial engine section covers the DC 9 engine fitted to the machines in this manual. Engine specification data identifies a 5-cylinder, straight, 4-cycle water-cooled engine with air-to-air intercooling and direct injection. Rated net power is listed as 237 kW (318 HP) at 1,800 rpm, displacement as 9,300 cc, bore as 130 mm, stroke as 140 mm, and compression ratio as 17:1. The engine section also contains identification information, performance curves, special tools, tightening torques, inspection procedures, and extensive component-level repair instructions.
Coverage extends through the cylinder head, valve mechanism, cylinder block and liner, camshaft, connecting rod, crankshaft, flywheel, piston, roller tappet, timing gear, lubrication system, exhaust and aftertreatment components, cooling system, fuel system, and engine electrical controls. Fuel-system subjects include the accumulator, fuel manifold, overflow valve, feed pump, injectors, filter and heater, together with troubleshooting. Exhaust-system coverage includes the variable geometry turbocharger, oxidation catalytic converter, EGR system, reductant components and related sensors. The manual also provides numerous component-specific tightening procedures and torque values for engine assembly work.
Hydraulic Service, Testing and Troubleshooting
Hydraulic information is spread through both component chapters and dedicated hydraulic-system sections. The manual covers the main pump, main control valve, swing device, fan pump and fan motor, joystick and travel control valves, solenoid valve, accumulator, center joint, travel device, cylinders, hydraulic tank and related circuitry. General hydraulic maintenance guidance emphasizes system cleanliness, contamination prevention, oil-leak inspection, correct assembly practices and pressure-release precautions.
The dedicated hydraulic chapters explain system operation and include testing, adjustment and troubleshooting information. The hydraulic system identifies major components such as the two main pumps, control valve, swing and travel devices, boom, arm and bucket cylinders, pilot components, valves, filters, oil cooler, hydraulic tank, attachment-control valves and associated circuits. This makes the manual useful both when tracing a hydraulic function and when servicing the individual hardware responsible for that function.
Component Removal, Overhaul and Installation
The Doosan DX340LC-5 DX350LC-5 Excavator Shop Manual contains component-focused sections for the upper structure, undercarriage and front attachment. Depending on the assembly, these sections include specifications, parts identification, theory of operation, inspection, removal, installation, disassembly, reassembly, maintenance standards and troubleshooting. The swing device section, for example, covers the swing motor, reduction gear, parking brake, hydraulic circuit, removal and installation, complete disassembly and reassembly, troubleshooting and worn-part standards.
The lower structure covers the swing bearing, center joint, travel device and track assembly. Front equipment coverage includes the boom and arm, bucket and hydraulic cylinders. Procedures are supported by component illustrations, connection information, tightening values and service precautions where applicable.
Torque and Assembly Reference
General maintenance material includes welding precautions, hydraulic-system precautions, cleaning and inspection methods, bearing inspection and repair practices. A dedicated standard-torque section contains metric and U.S. fastener torque charts, Type 8 phosphate-coated hardware values, hose-clamp values, ORFS swivel nut recommendations, split-flange torque values and information on torque-wrench extension tools. Separate engine pages provide normal and special tightening torques as well as component-specific sequences for assemblies such as the cylinder head, connecting rods, flywheel, fuel system and other engine parts.
Chapters Covered
- 1. Safety
- Track Excavator Maintenance Safety: safety messages, general precautions, transportation, operation, maintenance, environment and circumstances
- 2. Specifications
- Component locations, general dimensions, one-piece and two-piece boom configurations, working ranges, general specifications, workload material weights, performance standards and operational performance tests
Complete PDF Bookmark Tree
Complete Bookmarks
The complete bookmarks in the “Doosan DX340LC-5 DX350LC-5 Excavator Shop Manual 950106-01001E – April 2014” are as follows:
+DX340LC-5/DX350LC-5p. 1
NOTICEp. 3
Table of Contentsp. 5
+Safetyp. 7
+Track Excavator Maintenance Safetyp. 9
Safety Instructionsp. 13
Safety Messagesp. 13
+Generalp. 14
Safe Operation is Operator's Responsibilityp. 14
Know Your Machinep. 14
Proper Work Tools and Attachmentsp. 15
Pressurized Fluidsp. 15
Flying or Falling Objectsp. 16
Personal Protective Equipment (PPE)p. 17
Correction of Machine Problemsp. 17
Crushing and Cuttingp. 17
Hot Coolant and Oils – Burn Preventionp. 18
Fire and Explosion Preventionp. 19
Fire Extinguisher and First-aid Kit (Emergency Medical Kit)p. 22
Electrical System and Electrical Shockp. 23
Roll-over Protective Structure (ROPS)p. 23
+Transportationp. 27
Obey State and Local Over-the-Road Regulationsp. 27
Loading and Unloadingp. 27
Transporting Machinep. 28
+Operationp. 29
Before Engine Startingp. 29
Work Sitep. 30
Mounting/Dismountingp. 31
Cleaningp. 32
Operator Stationp. 32
Seat Beltp. 33
Visibility Informationp. 34
Boost Starting or Charging Engine Batteriesp. 35
Starting Enginep. 36
Swinging or Travelingp. 37
Lifting and Diggingp. 39
Operation on Slopesp. 40
Towingp. 41
Attachmentp. 42
Equipment Lowering with Engine Stoppedp. 42
Engine Stopp. 43
Parking Machinep. 43
Preservation/Storing Machinep. 44
+Maintenancep. 46
Warning Tagp. 49
Cleaningp. 50
Proper Tools and Clothingp. 50
Disassembling Precautionsp. 50
Use of Lightingp. 50
Fire and Explosion Preventionp. 51
Burn Preventionp. 52
Rubber That Contains Fluoridesp. 53
Rubber and Plasticsp. 54
Welding Repairsp. 55
Warning for Counterweight and Front Attachment Removalp. 56
Lock Inspection Coversp. 57
Working on Machinep. 57
Accumulatorp. 58
Compressed Airp. 58
Track Tension Adjustmentsp. 59
Supports and Blocking for Work Equipmentp. 59
High-pressure Lines, Tubes and Hosesp. 60
Batteryp. 61
+Environment and Circumstancesp. 63
Work Site Areas Requiring Extra Cautionp. 63
High-voltage Cablesp. 65
Underground Operationp. 66
Working in Waterp. 66
Working in Contaminated Environmentp. 66
Operation in Extreme Conditionsp. 67
Exhaust Ventilationp. 71
Asbestos Informationp. 72
Silica Dust Informationp. 72
Disposal of Hazardous Materialsp. 73
Soundp. 74
Vibrationp. 74
+Specificationsp. 75
+Specificationsp. 77
Safety Instructionsp. 81
General Descriptionp. 81
Component Locationsp. 82
+General Dimensionsp. 86
One – Piece Boomp. 86
Two – Piece Boomp. 87
+Working Rangep. 88
One – Piece Boomp. 88
Two – Piece Boomp. 90
General Specificationsp. 92
Approximate Weight of Workload Materialsp. 94
+Performance Testsp. 96
Purpose of Performance Testsp. 96
Kinds of Testsp. 96
Performance Standardsp. 96
Precautions for Evaluation of Test Datap. 96
Definition of "Performance Standard"p. 97
+Preparation for Performance Testsp. 97
The Machinep. 97
Test Areap. 97
Precautionsp. 97
Make Precise Measurementp. 98
Operational Performance Standard Tablep. 99
+Operational Performance Testp. 101
Hydraulic Cylinder Cycle Timep. 101
Travel Speedp. 103
Track Revolution Speedp. 104
Mistrack Checkp. 106
Swing Speedp. 108
Swing Function Drift Checkp. 109
+General Maintenancep. 111
+General Maintenance Instructionsp. 113
Safety Instructionsp. 117
Welding Precautions and Instructionsp. 118
Hydraulic System – General Precautionsp. 119
+Maintenance Service and Repair Procedurep. 121
General Precautionsp. 121
+Hydraulic System Cleanliness and Oil Leaksp. 122
Maintenance Precautions for Hydraulic System Servicep. 122
Oil Leakage Precautionsp. 123
+Cleaning and Inspectionp. 124
General Instructionsp. 124
Bearing Inspectionp. 125
+Standard Torquesp. 133
Safety Instructionsp. 137
Torque Values for Standard Metric Fastenersp. 138
Torque Values for Standard U.S. Fastenersp. 139
Type 8 Phosphate Coated Hardwarep. 141
Torque Values for Hose Clampsp. 142
ORFS Swivel Nut Recommended Torquep. 142
Torque Values for Split Flangesp. 143
+Torque Wrench Extension Toolsp. 144
Torque Multiplicationp. 144
Other Uses for Torque Wrench Extension Toolsp. 145
Tightening Torque Specifications (Metric)p. 146
+Enginep. 149
+Enginep. 151
Safety Instructionsp. 157
Overviewp. 158
+Inspectionp. 159
Cleaning the Enginep. 159
+Special Toolsp. 159
Mounting the Engine in a Universal Standp. 169
+Engine Identificationp. 170
Engine Specificationp. 171
Engine Performance Curvesp. 172
+Tightening Torquesp. 174
Normal Tightening Torquep. 174
Special Tightening Torquep. 178
+Cylinderp. 206
Cylinder Headp. 206
Valve Mechanismp. 224
Cylinder Blockp. 227
Cylinder Linerp. 242
Flywheel Housingp. 249
Front Coverp. 252
Oil Mist Separatorp. 254
+Actuating Systemp. 260
Camshaftp. 260
Connecting Rodp. 268
Crankshaftp. 270
Flywheelp. 279
Pistonp. 284
Roller Tappetp. 290
Intake Manifoldp. 291
Power Take Offp. 291
Torsion Damperp. 292
Belt Circuitp. 293
Balance Shaft Unitp. 300
Timing Gearp. 305
+Lubrication Systemp. 311
General Informationp. 311
Centrifugal Oil Cleanerp. 313
Oil Coolerp. 318
Oil Filterp. 321
Oil Pumpp. 322
Oil Sumpp. 324
Oil Pressure Sensorp. 325
Troubleshooting Chips Found in the Enginep. 326
Troubleshooting the Lubrication Systemp. 330
Lubrication Oil Consumptionp. 331
+Exhaust Systemp. 334
General Informationp. 334
T113, Exhaust Temperature Sensor before Catalytic Converterp. 350
T115, NOx Sensorp. 351
T131 NOx Sensorp. 352
T116, Reductant Pick-up Unitp. 354
Evaporatorp. 359
V117 Reductant Doserp. 359
V118, Coolant Valve for Heating the Reductant Systemp. 366
V183 Reductant Pumpp. 368
H25, H26 Electrically Heated Reductant Hosep. 379
M4000 Electric Exhaust Brakep. 380
Reductant Tankp. 386
Oxidation Catalytic Converterp. 393
Exhaust Manifoldp. 395
Variable Geometry Turbochargerp. 403
EGR Systemp. 411
EGR Valvep. 418
EGR Coolerp. 423
+Cooling Systemp. 425
Internal Cleaning of Cooling Systemp. 428
Charge Air Coolerp. 429
Charge Air Temperature Sensorp. 431
Charge Air Pressure Sensorp. 433
Coupling Coil for AC Compressorp. 434
Thermostatp. 435
Coolant Pumpp. 438
Coolant Temperature Sensorp. 439
+Fuel Systemp. 441
General Informationp. 441
Accumulatorp. 446
Fuel Manifoldp. 447
Overflow Valvep. 456
Feed Pumpp. 459
Injectorp. 465
Fuel Filterp. 471
Fuel Heaterp. 475
Fuel System Troubleshootingp. 476
+Electrical Systemp. 490
E44, Control Unit EMSp. 490
Control Unit EECp. 506
Engine Speed Sensorp. 511
T110 Oil Level Sensorp. 513
T111, Fuel Pressure Sensorp. 514
T125, Exhaust Back Pressure Sensorp. 516
T135, Camshaft Position Sensorp. 517
V109, Solenoid Valve for Charge Pressurep. 519
V120, Fuel Inlet Metering Valvep. 520
V142, V143, V144, V145, V146 Solenoid Valve for Injectorp. 522
T8, Coolant Level Monitorp. 523
P3, Alternatorp. 524
M1, Starter Motorp. 534
AC Compressorp. 537
Electrical Partsp. 540
EMS S8 (1/2)p. 551
EMS S8 (2/2)p. 553
EEC, EEC3 Exhaust Emission Control (9, 13 Liter Engines XPI)p. 555
+Engine Coolant Heater (Option)p. 557
Safety Instructionsp. 561
+Disassembly and Assemblyp. 561
Changing the Circulating Pumpp. 561
Changing the Temperature Limiterp. 563
Changing the Temperature Sensorp. 564
Changing the Combustion Air Fanp. 566
Changing the Burner, Flame Monitor and Glow Plugp. 568
Changing the Burner Headp. 570
Changing the Heat Exchangerp. 572
+Upper Structurep. 573
+Cabinp. 575
Safety Instructionsp. 579
+Cabin Identificationp. 579
Roll-over Protective Structure (ROPS)p. 579
Removalp. 581
Installationp. 585
Dimensions of Cabin Glassp. 588
+Removal and Installation of Cabin Glassp. 592
Removal of Cabin Glassp. 592
Installation of Cabin Glassp. 594
Installation of Upper Door Glassp. 599
Installation of Upper Front Glassp. 599
+Counterweightp. 601
Safety Instructionsp. 605
+Generalp. 606
Warning for Counterweight and Front Attachment Removalp. 606
Removalp. 608
Installationp. 609
+Hydraulic Oil Tankp. 611
Safety Instructionsp. 615
+Generalp. 615
Specificationp. 615
Parts Listp. 616
Air Breatherp. 618
Removalp. 619
Installationp. 624
Completing Workp. 625
+Fuel Tankp. 627
Safety Instructionsp. 631
+Generalp. 631
Specificationp. 631
Parts Listp. 632
Removalp. 634
Installationp. 638
Completing Workp. 639
+Main Pumpp. 641
Safety Instructionsp. 647
+Generalp. 647
Specificationsp. 647
Overviewp. 650
Hydraulic Circuitp. 651
Parts Listp. 652
Theory of Operationp. 656
Manual Overridep. 664
Angle Sensorp. 666
+PPRV (Peak Pressure Reducing Valve)p. 667
Installationp. 674
Hydraulic Oilp. 674
Guide for External Oil Leakagep. 674
+Repairp. 675
Necessary Tools and Jigsp. 675
Cautions During Disassembling and Assemblingp. 676
Disassembling Procedurep. 677
Assembling Procedurep. 680
+Precautionp. 681
Tightening Torquesp. 681
Slotted Screwsp. 681
Threaded Plugsp. 682
Sealing Nutsp. 683
+Maintenance and Repairp. 684
Cleaning and Carep. 684
Inspectionp. 685
Maintenancep. 685
Repairp. 686
Spare Partsp. 686
Decommissioningp. 687
+Removal and Replacementp. 687
Required Toolsp. 687
Preparing for Removalp. 687
Removing the Axial Piston Unitp. 688
Preparing the Components for Storage or Further Usep. 688
+Troubleshootingp. 689
How to Proceed for Troubleshootingp. 689
Malfunction Tablep. 690
Section Viewp. 692
Removalp. 693
Installationp. 702
Completing Workp. 702
+Replacing Seals and Assembly Groupsp. 703
Replacing the Shaft Sealp. 704
Sealing or Replacing the Gear Pumpp. 707
Sealing the Cover of the Power Take-offp. 709
Sealing the Port Plate with Valvep. 711
Sealing or Replacing the Pressure Reducing Valvep. 713
Replacing the Angle Position Sensorp. 715
Replacing Sealing Nutsp. 717
+D-Eco Power Systemp. 718
Introduction of D-Eco Power Systemp. 718
Initialization of D-Eco Power Systemp. 728
+D-Eco Power Diagnostic Tools Operationp. 754
Program Startp. 754
D-Eco Power Diagnostic Tools Main Screenp. 755
Contents and Functionp. 755
D-Eco Power Diagnostic Check Listp. 756
+D-Eco Power Diagnostic Tools Checkp. 757
Joystick Checkp. 757
Angle Checkp. 770
EPPR V/V Checkp. 774
Main Pump Checkp. 780
Relief Pressure Checkp. 786
+Drive Coupling (Main Pump)p. 791
Safety Instructionsp. 795
+Generalp. 795
Specificationp. 795
Parts Listp. 796
+Section Viewp. 798
Disassemblyp. 800
Reassemblyp. 800
+Main Control Valvep. 803
Safety Instructionsp. 807
+Generalp. 807
Specificationp. 807
Overviewp. 808
Parts Listp. 812
Theory of Operationp. 815
Removalp. 856
Installationp. 864
Completing Workp. 864
+Disassemblyp. 865
General Repair Instructionsp. 865
Repair Instructionsp. 866
+Reassemblyp. 885
Maintenance and Repairp. 892
+Troubleshootingp. 898
Troubleshooting, Testing and Adjustmentp. 898
+Start-up Proceduresp. 901
+Swing Devicep. 905
Safety Instructionsp. 909
+Generalp. 909
Specificationp. 909
Overviewp. 910
Hydraulics Circuitp. 911
Parts Listp. 912
Theory of Operationp. 917
Cautions for Operationp. 925
+Precautionp. 929
Tools for Disassembly and Assemblyp. 929
Removalp. 931
Installationp. 935
Completing workp. 935
Disassembly and Reassemblyp. 936
+Troubleshootingp. 957
General Instructionsp. 957
Examination of Hydraulic Motorp. 957
Troubleshootingp. 958
+Maintenance Instructionsp. 961
Replacement Standard of Worn Partsp. 961
Standard of Sliding Surface Correctionp. 961
+Fan Pump for Oil Coolerp. 963
Safety Instructionsp. 967
+Generalp. 968
Specificationp. 968
Overviewp. 969
Parts Listp. 970
Theory of Operationp. 972
+Maintenance Guidelinesp. 977
Sealing Driveshaftp. 978
Sealing Control Valvep. 980
Toolsp. 980
Removalp. 981
Installationp. 984
Completing Workp. 985
+Section Viewp. 986
+Disassemblyp. 987
Disassembly of Rotary Groupp. 988
Disassembly of Control Devicep. 989
Disassembly of Shaft/Bearingsp. 990
Cleaning and Inspectionp. 991
+Reassemblyp. 994
Adjustment of Taper Roller Bearingp. 995
+Fan Motor for Oil Coolerp. 1001
Safety Instructionsp. 1005
+Generalp. 1005
Specificationp. 1005
Overviewp. 1006
Parts List and Section Viewp. 1007
+Precautionp. 1008
Removalp. 1009
Installationp. 1013
Completing Workp. 1013
Disassemblyp. 1014
+Reassemblyp. 1017
Reassemblyp. 1017
Assemblyp. 1018
+Gear Pump (Rotation)p. 1021
Safety Instructionsp. 1025
+Generalp. 1025
Specificationp. 1025
Overviewp. 1026
Parts Listp. 1027
+Joystick Valve (Work Lever)p. 1029
Safety Instructionsp. 1033
+Generalp. 1033
Specificationsp. 1033
Overviewp. 1034
Parts Listp. 1036
Theory of Operationp. 1038
Tools and Torquesp. 1039
Section Viewp. 1040
Removalp. 1042
Installationp. 1047
Completing workp. 1047
Disassemblyp. 1048
Reassemblyp. 1052
+Travel Control Valve (with Damper)p. 1059
Safety Instructionsp. 1063
+Generalp. 1064
Specificationp. 1064
Overviewp. 1065
Parts Listp. 1066
Theory of Operationp. 1068
Tools and Torquesp. 1069
Section Viewp. 1070
Removalp. 1071
Installationp. 1074
Completing Workp. 1077
Disassemblyp. 1078
Reassemblyp. 1081
Troubleshootingp. 1086
+Solenoid Valvep. 1087
Safety Instructionsp. 1091
+Generalp. 1091
Specificationp. 1091
Overviewp. 1092
Parts Listp. 1094
Theory of Operationp. 1095
Disassembly and Reassemblyp. 1096
Troubleshootingp. 1097
+Accumulatorp. 1099
Safety Instructionsp. 1103
+Generalp. 1103
+Two Pumpp. 1107
Safety Instructionsp. 1111
+Generalp. 1111
Theory of Operationp. 1111
Hydraulic Circuitp. 1112
Layoutp. 1113
+Lower Structure and Chassisp. 1115
+Swing Bearingp. 1117
Safety Instructionsp. 1121
+Generalp. 1122
General Descriptionp. 1122
Parts Listp. 1122
Maintenance Guidelinesp. 1123
Disassemblyp. 1124
Reassemblyp. 1126
+Center Jointp. 1127
Safety Instructionsp. 1131
+Generalp. 1131
General Descriptionp. 1131
Overviewp. 1132
Parts Listp. 1133
Section Viewp. 1134
Disassemblyp. 1135
Reassemblyp. 1138
+Troubleshooting, Testing and Adjustmentp. 1140
Inspectionp. 1140
Testingp. 1140
+Travel Devicep. 1141
Safety Instructionsp. 1145
+Generalp. 1145
Specificationp. 1145
Overviewp. 1146
Parts Listp. 1148
Theory of Operationp. 1152
Cautions for Operationp. 1162
+Precautionp. 1166
Tools for Disassembly and Assemblyp. 1166
Tightening Torquep. 1168
Removalp. 1169
Installationp. 1174
Completing Workp. 1175
Section Viewp. 1176
+Disassemblyp. 1178
Cautions on Disassemblyp. 1178
Disassembly Sequencep. 1178
+Reassemblyp. 1188
Cautions on Assemblyp. 1188
Assembly Sequencep. 1188
Performance Testp. 1205
Troubleshootingp. 1207
+Track Assemblyp. 1209
Safety Instructionsp. 1213
Generalp. 1213
Track Tensionp. 1214
+Track Shoes and Linksp. 1216
Parts Listp. 1216
Track Removalp. 1217
Track Installationp. 1219
Wear Limits and Tolerancesp. 1220
+Sprocketp. 1222
Wear Limits and Tolerancesp. 1222
+Front Idlerp. 1223
Overviewp. 1223
Parts Listp. 1224
Front Idler Disassemblyp. 1225
Front Idler Reassemblyp. 1227
+Upper Rollerp. 1228
Overviewp. 1228
Parts Listp. 1229
Upper Roller Removalp. 1230
Upper Roller Installationp. 1230
Upper Roller Disassemblyp. 1230
Upper Roller Reassemblyp. 1232
+Lower Rollerp. 1233
Overviewp. 1233
Parts Listp. 1234
Lower Roller Removalp. 1235
Lower Roller Installationp. 1235
Lower Roller Disassemblyp. 1235
Lower Roller Reassemblyp. 1236
+Track Adjusterp. 1238
Parts Listp. 1238
Disassemblyp. 1239
Assemblyp. 1240
+Frontp. 1243
+Boom and Armp. 1245
Safety Instructionsp. 1249
+Specificationsp. 1250
One – Piece Boomp. 1250
Two – Piece Boomp. 1252
+Removalp. 1254
Arm Removalp. 1254
Boom Removalp. 1256
+Installationp. 1257
Arm Installationp. 1257
Boom Installationp. 1257
Completing Workp. 1258
+Bucketp. 1259
Safety Instructionsp. 1263
Bucket Tooth Inspection and Replacementp. 1264
Bucket O-ring Replacementp. 1265
+Bucket Shimming Proceduresp. 1266
+New Bucket Installationp. 1266
Shimming Procedures for Installed Bucketp. 1267
+Bucket Replacement and Reversalp. 1268
Replacementp. 1269
Reversalp. 1270
+Cylindersp. 1271
Safety Instructionsp. 1275
+Generalp. 1275
General Descriptionp. 1275
Specificationp. 1275
Parts Listp. 1276
Theory of Operationp. 1284
Seal of Cylinderp. 1285
+Special Tools and Materialsp. 1287
Piston Nutp. 1287
Piston Jigp. 1288
Steel Bushing Jigp. 1289
Dust Wiper Jigp. 1290
Slipper Seal Jigp. 1291
Slipper Seal Straightening Jigp. 1292
Rod Bushing (DD-bushing) Pushing-in Jigp. 1293
Disassemblyp. 1294
Reassemblyp. 1299
Troubleshootingp. 1303
+Hydraulic Systemp. 1305
+Hydraulic Systemp. 1307
Safety Instructionsp. 1311
General Descriptionp. 1311
+Hydraulic Schematicp. 1312
General Descriptionp. 1312
Hydraulic Componentp. 1314
Boom Up Operationp. 1316
Boom Down Operationp. 1318
Easy Boom Operationp. 1320
Arm Crowd Operationp. 1322
Arm Dump Operationp. 1324
Bucket Crowd Operationp. 1326
Bucket Dump Operationp. 1328
+Swing Operationp. 1330
ON Swing Signalp. 1330
OFF Swing Signalp. 1331
Travel Operationp. 1332
Travel Straight Operationp. 1334
Holding Valve Operation – Cylinder Locking (Pilot Pressure Is 0 Bar)p. 1336
Holding Valve Operation – Cylinder Released (Pilot Pressure Is Given)p. 1337
Main Relief Valve and Port Relief Valve Operationp. 1338
Bypass Cut Valve and Bypass Cut Solenoid Valve Operationp. 1339
+Hydraulic System Testing and Adjustmentp. 1341
Safety Instructionsp. 1345
+Procedural Troubleshooting Baseline Recommendationsp. 1346
Initial Checks and Tests to Establish Operating Condition of the Excavatorp. 1346
+Pilot Pressurep. 1347
Adjustment and Testingp. 1347
+Pump Swash Platep. 1348
Adjustment and Testingp. 1348
+Pump EPPRVp. 1349
Adjustment and Testingp. 1349
+Pump Pressurep. 1350
Adjustment and Testingp. 1350
+Pump Regulatorp. 1351
Adjustment and Testingp. 1351
+Installation and Testing of Flow Meter and Flow Meter Kitp. 1353
Installation and Testing Proceduresp. 1353
+Swing System Troubleshootingp. 1354
Precautions/Initial Checksp. 1354
Swing Relief Valve Checking and Adjustmentp. 1355
+Hydraulic System Troubleshootingp. 1357
Safety Instructionsp. 1361
+Hydraulic Systemp. 1361
Unusual Noise Comes Out from Pump Connectionp. 1361
Engine Starts but Machine Does Not Operatep. 1362
Hydraulic Oil is Cloudyp. 1363
Hydraulic Oil Overheatedp. 1363
Hydraulic Pump Cavitationp. 1364
Hydraulic Oil is Contaminatedp. 1364
Attachment Cylinders, Swing and Travel Motors are All Operable. But Speed Is Lower and Power Lacks.p. 1365
Travel Left, Bucket are Inoperable. But Boom Up and Arm are Slower Than Normal Operation.p. 1366
Travel Right, Swing are Inoperable. But Boom Up and Arm are Slower Than Normal Operation.p. 1367
Attachment Cylinders, Swing and Travel Motors are All Operable. But Fine Operation Is Difficult and Loud Noises are Heard.p. 1368
Arm-in Is Unstable.p. 1369
Travel Right Motor are Inoperable or Operable in One Direction Only.p. 1369
Travel Left Motor are Inoperable or Operable in One Direction Only.p. 1370
Swing Motor are Inoperable or Operable in One Direction Only.p. 1370
Arm Is Operable but Slower in One Direction.p. 1371
Two Pump (Breaker etc.) Becomes Slower.p. 1371
Machine Cannot Travel Straight During Combined Operation of Travel and Front.p. 1372
Machine Cannot Travel Straight During Travel Operation.p. 1372
Considerable Flow at Pump with Neutral Lever Position.p. 1373
Troubleshooting – Swing Gearboxp. 1374
Troubleshooting – Hydraulic Problemsp. 1375
Troubleshooting – Main Pumpp. 1378
Troubleshooting – Control Valvep. 1380
Troubleshooting – Travel Control Valvep. 1382
Troubleshooting – Joystick Control Valvep. 1382
+Electrical Systemp. 1383
+Electrical Systemp. 1385
Safety Instructionsp. 1391
Introductionp. 1391
Electrical Supply Systemp. 1392
+Engine Starting Circuitp. 1394
Start Operationp. 1394
After Startp. 1396
Engine Stopp. 1397
Charging Systemp. 1399
+Monitoring Systemp. 1400
Instrument Panelp. 1401
Functional Checkp. 1401
Monitoring System Schematicp. 1402
+Operationp. 1404
+Warning and Indicator Lightsp. 1406
Indication of Warning Lightsp. 1406
Indication of Multifunction Gaugep. 1410
Initial Operationp. 1412
+Graphic Information Area Displayp. 1413
Overviewp. 1413
Main Menus for the Graphic Display Areap. 1413
Menu Selector Buttonsp. 1413
+User Menup. 1414
User Menu – Access and Escape Methodsp. 1414
+Special Menup. 1446
Entering/Accessing and Exiting/Escaping Menusp. 1446
Special Menu Selectionsp. 1447
+Electronic Hydraulic Control System (EPOS)p. 1476
Control System Schematicp. 1476
+Power Plus Mode Controlp. 1478
Power Mode Controlp. 1482
+Smart Power Control (SPC)p. 1484
Engine Control Systemp. 1487
Engine Control Dialp. 1488
Engine Controlp. 1490
Automatic Deceleration Control (Auto Idle Control)p. 1492
Engine Overheat Protection Systemp. 1494
+Power Boost Modep. 1497
Operationp. 1497
Power Boost Controlp. 1498
+Automatic Travel Speed Controlp. 1500
Automatic Travel Speed Controlp. 1502
+Water in Fuel Warning Systemp. 1503
+Self-diagnostic Functionp. 1504
+Air Conditioner Systemp. 1506
Outlinep. 1506
Internal and External Filtersp. 1507
Air-Conditioning System Layoutp. 1508
Air Conditioner/Heater Circuit Diagramp. 1509
Air Conditioner/Heater Unitp. 1510
Ambient Air Temperature Sensorp. 1515
Sun Sensorp. 1516
Control Panelp. 1516
Receiver Dryerp. 1524
Troubleshootingp. 1525
+Refrigerant System Repairsp. 1527
Refrigerant Safe Handling Proceduresp. 1527
Repair and Replacement Procedurep. 1528
Refrigerant Recoveryp. 1530
Vacuuming Refrigerant Systemp. 1530
Leakage Checkp. 1532
Refrigerant Chargingp. 1532
Inspecting System For Leakagep. 1534
+Wiper Systemp. 1535
Wiper Circuitp. 1535
Wiper Operationp. 1536
+Lighting Systemp. 1538
Lighting System Circuit Diagramp. 1538
Kind of Lightp. 1539
Operationp. 1539
+Overload Warning Devicep. 1540
Overload Warning Device Circuit Diagramp. 1540
+Audio Controllerp. 1541
Audio Controller Circuit Diagramp. 1541
+Optionsp. 1543
+One Wayp. 1545
Safety Instructionsp. 1549
+Generalp. 1549
General Descriptionp. 1549
Theory of Operationp. 1549
Hydraulic Circuitp. 1550
Caution for Installationp. 1551
+Installation Procedurep. 1552
Main Piping – One or Two-wayp. 1552
Main Piping – One Wayp. 1554
Pilot Piping – One Wayp. 1556
Boom Piping – One and Two-wayp. 1558
Arm Piping – One and Two-wayp. 1560
After Installation Precautionsp. 1561
Air Bleedingp. 1561
Completing Workp. 1562
+Two-wayp. 1563
Safety Instructionsp. 1567
+Generalp. 1567
General Descriptionp. 1567
Theory of Operationp. 1567
Structurep. 1568
Hydraulic Circuitp. 1569
Caution for Installationp. 1571
+Installation Procedurep. 1572
Main Piping – One or Two-wayp. 1572
Main Piping – Two-wayp. 1574
Pilot Piping – Two-wayp. 1576
Pilot Piping – Two-way (Pedal)p. 1578
Boom Piping – One and Two-wayp. 1580
Arm Piping – One and Two-wayp. 1582
Floor Mat – Two-way (Pedal)p. 1584
After Installation Precautionsp. 1585
Air Bleedingp. 1585
Completing Workp. 1585
+Rotatingp. 1587
Safety Instructionsp. 1591
+Generalp. 1591
General Descriptionp. 1591
Theory of Operationp. 1591
Structurep. 1592
Hydraulic Circuitp. 1593
Caution for Installationp. 1594
+Installation Procedurep. 1596
Main Piping – Rotatingp. 1596
Pilot Piping – Rotatingp. 1598
Boom Piping – Rotatingp. 1600
Arm Piping – Rotatingp. 1602
After Installation Precautionsp. 1603
Air Bleedingp. 1603
Completing Workp. 1603
+Quick Couplerp. 1605
Safety Instructionsp. 1609
+Generalp. 1609
General Descriptionp. 1609
Theory of Operationp. 1609
Hydraulic Circuitp. 1610
Caution for Installationp. 1611
+Quick Coupler Operationp. 1612
To Engage Attachmentp. 1612
To Release Attachmentp. 1615
+Installation Procedurep. 1618
Main Piping – Quick Couplerp. 1618
Electric Parts – Quick Couplerp. 1619
Boom Piping – Quick Couplerp. 1620
Arm Piping – Quick Couplerp. 1622
After Installation Precautionsp. 1623
Air Bleedingp. 1623
Completing Workp. 1623
+Schematicp. 1625
+Hydraulic Schematic / Electrical Schematicp. 1627
Hydraulic Schematicp. 1629
Electrical Schematic(1/2)p. 1630
Electrical Schematic(2/2)p. 1631
- 3. General Maintenance
- General Maintenance Instructions: welding precautions, hydraulic-system precautions, service and repair procedures, hydraulic cleanliness, oil leakage, cleaning and inspection, bearing inspection
- Standard Torques: metric and U.S. fasteners, Type 8 hardware, hose clamps, ORFS swivel nuts, split flanges, torque-wrench extensions and tightening specifications
- 4. Engine
- DC 9 engine inspection, special tools, identification, specifications, performance curves and tightening torques
- Cylinder head, valve mechanism, cylinder block and liner, flywheel housing, front cover and oil mist separator
- Camshaft, connecting rod, crankshaft, flywheel, piston, roller tappet, intake manifold, power take off, torsion damper, belt circuit, balance shaft and timing gear
- Lubrication system, oil cleaner, cooler, filter, pump and sump, plus lubrication troubleshooting
- Exhaust and aftertreatment system, sensors, reductant system, oxidation catalyst, turbocharger and EGR
- Cooling system, charge-air components, thermostat, coolant pump and sensors
- Fuel system, accumulator, manifold, feed pump, injectors, filters, heater and troubleshooting
- Engine electrical controls, sensors, solenoid valves, alternator, starter motor and EMS/EEC systems
- Engine Coolant Heater (Option)
- 5. Upper Structure
- Cabin and Counterweight
- Hydraulic Oil Tank and Fuel Tank
- Main Pump and Drive Coupling (Main Pump)
- Main Control Valve and Swing Device
- Fan Pump and Fan Motor for Oil Cooler
- Gear Pump (Rotation)
- Joystick Valve (Work Lever) and Travel Control Valve (with Damper)
- Solenoid Valve, Accumulator and Two Pump
- 6. Lower Structure and Chassis
- Swing Bearing
- Center Joint
- Travel Device
- Track Assembly
- 7. Front
- Boom and Arm
- Bucket
- Cylinders
- 8. Hydraulic System
- Hydraulic System
- Hydraulic System Testing and Adjustment
- Hydraulic System Troubleshooting
- 9. Electrical System
- Electrical System service and circuit information
- 10. Options
- One Way attachment hydraulic installation and circuit
- Two-way attachment hydraulic installation and circuit
- Rotating system
- Quick Coupler
- 11. Schematic
- Hydraulic Schematic / Electrical Schematic
Taken together, these chapters give a technician a machine-wide repair reference rather than a single-system guide. The content moves from safety and baseline specifications through engine, structure, front attachment, hydraulics, electrical controls and optional attachment circuits, with testing and troubleshooting sections available for diagnosing performance before parts are removed.
Repair the DX340LC-5 and DX350LC-5 with the Correct Service Information
The Doosan DX340LC-5 DX350LC-5 Excavator Shop Manual 950106-01001E – April 2014 supports major mechanical repairs, engine work, hydraulic diagnosis and adjustment, component overhaul, electrical troubleshooting, front-equipment service, undercarriage work and attachment-system installation. Detailed procedures, specifications, pressure and performance standards, tightening values and schematics help technicians carry out repairs and checks using the values and methods specified for these machines.
After purchase, the manual is supplied as an instant PDF download. There is no physical book and no shipping delay. The PDF can be opened on compatible computers, tablets or phones and pages can be printed when a paper reference is useful at the machine or workbench.
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