Linkbelt 300X3 A3 Assembly Diagrams Service Manual – PDF DOWNLOAD

Description

Linkbelt 300X3 A3 Assembly Diagrams Service Manual – PDF DOWNLOAD

FILE DETAILS:

Linkbelt 300X3 A3 Assembly Diagrams Service Manual – PDF DOWNLOAD

Language : English
Pages : 1483
Downloadable : Yes
File Type : PDF
Size: 102 MB

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Linkbelt 300X3 A3 Assembly Diagrams Service Manual – PDF DOWNLOAD

General Information:
Cleaning
Clean the metal parts with a cleaning fluid or steamer that meets standards. (except for the bearing) After cleaning the parts, let them dry well and inject oil into all parts. Inject oil into the bearing after letting it dry.
Inspection
When disassembling parts, inspect all the parts. Replace any worn or damaged parts. Inspect them thoroughly to prevent early failures.
Bearing
If the bearing is loose, replace it. Install the bearing after air drying it.
Needle bearing
When inserting the needle bearing, be careful not to scratch it. Inject grease into the location where the needle bearing is to be inserted.

TABLE OF CONTENTS:

Linkbelt 300X3 A3 Assembly Diagrams Service Manual – PDF DOWNLOAD

1531765366_j _hydraulic_equipment-oversize_pages 1
A3 Assembly Diagrams 1
J 5
Explanation of Hydraulic Circuit and Operations (standard model) 5
Travel Circuit 6
Travel low-speed circuit 6
Travel high-speed circuit 8
Straight travel circuit 10
Swing Circuit 12
Swing speed limit control circuit 12
Swing relief cut-off control circuit 14
Swing priority circuit 16
Swing brake circuit 18
Swing parking circuit (lever in neutral) 20
Swing parking circuit (brake release) 22
Swing parking circuit (machine stop) 24
Boom Circuit 26
Boom-up circuit (independent operation) 26
Boom-up circuit (compound boom-up + arm-in) 28
Boom-down regenerative circuit 30
Boom-down tilting prevention circuit 32
Boom-down load holding valve circuit 34
Arm Circuit 36
Arm-out circuit 36
Arm-in forced regenerative circuit 38
Arm-in load holding valve circuit 40
Bucket Circuit 42
Bucket-open circuit 42
Bucket-close regenerative circuit 44
Negative Control Circuit 46
Negative control circuit (power save solenoid OFF) 46
Negative control power save circuit (power save solenoid ON) 48
Negative control circuit (bucket close, power save solenoid OFF) 50
Horsepower Boost Circuits 52
Arm-in Horsepower Boost Circuit 52
Travel Horsepower Boost Circuit 54
Other Circuits 56
Cushion circuit (arm-out operation) 56
Cushion circuit (arm-out operation stopped) 58
Cushion circuit (arm-out → arm-in operation) 60
Heat circuit (lever in neutral) 62
Auto pressure boost circuit (bucket close) 64
J 69
Explanation of Hydraulic Circuit and Operations (option) 69
Option Circuits 70
Breaker circuit (independent operation) 70
Double-acting circuit (hydraulic fork) 72
Multi-purpose circuit (breaker Q control) 74
Multi-purpose circuit (2 pumps flow crusher) 76
2nd option circuit (hydraulic rotation fork) 78
1531764901_001_safety_300x3 81
SAFETY 81
SAFETY, GENERAL INFORMATION AND STANDARD TORQUE DATA 84
General Information 85
Safety 85
ROPS 88
ROPS Judgment Method 88
Standard Torque Data For Cap Screws And Nuts 93
Bolt and Nut Tightening 93
1531764949_002_a _lower_300x3 95
A LOWER 95
Main Equipment Table (300X3) 99
300X3 99
Lower Component 99
Travel Unit 99
Take-up Roller 99
Upper Roller 99
Lower Roller 99
Recoil Spring 99
Shoe 100
Center Joint 100
Main Equipment Structure and Operation Explanation 101
Travel Motor 101
Travel motor operation explanation 101
Structure 101
Summary explanation of component parts 102
Rotary group 102
Parking Brake 102
Variable Capacity Mechanism Section 102
Overload Relief Valve 103
Brake Valve Section 104
Function 105
Motor operation 105
Parking Brake Operation 106
Operation of Variable Capacity Mechanism Section 107
Overload Relief Valve Operation 108
Brake Valve Operation 109
Port Diagram 114
Travel Motor 114
Center Joint 115
Basic Functions 116
Travel Speed Selection 116
Travel Alarm 117
Removal and Installation of Track 119
Removal and Installation of Shoe Assembly 119
Removal of Shoe Assembly 119
Installation of Shoe Assembly 121
Removal and Installation of Shoe Plate 122
Removal of Shoe Plate 122
Installation of Shoe Plate 122
Precautions for Shoe Bolt Installation 123
Removal and Installation of Roller 124
Removal and Installation of Upper Roller 124
Removal of Upper Roller 124
Installation of Upper Roller 125
Assembly and Disassembly of Upper Roller 126
Configuration Diagram 126
Dimension Diagram 127
Jig Dimension Diagram 127
Disassembly Procedures 127
Assembly Procedures 129
Removal and Installation of Lower Roller 131
Removal of Lower Roller 132
Installation of Lower Roller 132
Assembly and Disassembly of Lower Roller 133
Configuration Diagram 134
Dimension Diagram 134
Jig Dimension Diagram 134
Disassembly Procedures 135
Assembly Procedures 138
Removal and Installation of Drive Sprocket 141
Removal of Drive Sprocket 141
Installation of Drive Sprocket 142
Removal and Installation of Take-up Roller 143
Removal of Take-up Roller 143
Installation of Take-up Roller 144
Assembly and Disassembly of Take-up Roller 145
Configuration Diagram 146
Dimension Diagram 146
Jig Dimension Diagram 146
Disassembly Procedures 147
Assembly Procedures 148
Removal and Installation of Grease Cylinder 151
Removal of Grease Cylinder 151
Installation of grease cylinder 152
Assembly and Disassembly of Grease Cylinder 153
Configuration Diagram 153
Dimension Diagram 153
Jig Dimension Diagram 154
Disassembly Procedures 154
Assembly Procedures 154
Removal and Installation of Center Joint 156
Removal of Center Joint 156
Installation of Center Joint 158
Assembly and Disassembly of Center Joint 159
Configuration Diagram 160
Dimension Diagram 161
Jig Dimension Diagram 162
Disassembly Procedures 162
Assembly Procedures 163
Removal and Installation of Travel Motor 167
Removal of Travel Motor 167
Installation of Travel Motor 169
Assembly and Disassembly of Travel Motor 172
Tools for Assembly and Disassembly 172
Standard tools 172
Secondary Materials 172
Special Tool (jig) 174
Measurement Device 176
Motor Disassembly Procedures 176
Precautions before motor disassembly 176
Tightening Torque 177
Disassembly procedure 178
Removal of supplied valves 178
Disassembly of motor 178
Disassembly of overload relief valve 182
Reduction gear disassembly procedures 182
Disassembly preparations 182
Disassembly procedure 183
Installation to receiving platform of reduction gear (unit) 183
Removal of reduction gear cover 183
Removal of carrier 1 assembly 183
Removal of carrier 2 assembly 184
Removal of housing assembly 184
Disassembly of housing assembly 185
Removal of floating seal from motor 186
Disassembly of carrier 1 assembly 186
Disassembly of carrier 2 assembly 186
Maintenance standards 188
Motor parts maintenance standards 188
Reduction gear parts maintenance standards 190
Inspection prior to reassembly 190
Thrust washer 190
Gears 190
Bearing 190
Floating seal 190
Parts Maintenance 191
Assembly of motor 192
Precautions before Motor Assembly 192
Assembly procedure 192
Motor Assembly Procedures 192
Motor assembly procedure 196
Assembly of the carrier 2 assembly 196
Assembly of the carrier 1 assembly 197
Installation of bearing and floating seal 197
Assembly of the housing assembly 197
Determining the thickness of the angular bearing shim 198
Installation of housing assembly 199
Installation of carrier 2 assembly 200
Installation of carrier 1 assembly 200
Cover attachment 201
Gear oil filling 201
Initial pre-conditioning operation 202
Drain charge 202
Performing initial operation (pre-conditioning operation) 202
Troubleshooting 203
General cautions 203
Causes of troubles and countermeasures 203
Structural Diagram 206
Internal Structure Diagram 209
Part Table 211
Maintenance Standards 212
Drive Sprocket 212
Take-up Roller 213
Upper Roller 214
Lower Roller 216
Track Shoe (grouser shoe) 217
Inspection Gauge 219
For Drive Sprocket 219
For Take-up Roller 219
For Upper Roller 220
For Lower Roller 220
Pressure Measurement and Adjustment Procedures 221
Main Pressure Measurement 221
B Travel Pressure Measurement 221
Drain Volume Measurement Procedures 222
Preparations 222
Travel Motor Drain Volume Measurement 222
Air Bleed Procedure 224
Travel Motor 224
1531764961_003_b _c _swing_unit_counterweight_300x3 227
B C SWING UNIT, COUNTERWEIGHT 227
Main Equipment Table (300X3) 230
300X3 230
Upper Component 230
Swing Unit 230
Main Equipment Structure and Operation Explanation 231
Swing Motor 231
Swing Motor Operation Explanation 231
Hydraulic Motor Section 231
Valve Casing Section 231
Brake Section 232
Relief Valve Operation Explanation (relief valve model: KRD22EK10) 233
Swing Motor Internal Structure Diagram 235
Port Diagram 238
Swing motor 238
Basic Functions 239
Swing Brake 239
Swing Lock 240
Swing Speed Limit 241
Free Swing (option) 242
Removal and Installation of Swing Unit 243
Removal of Swing Unit 243
Installation of Swing Unit 245
Assembly and Disassembly of Swing Motor 246
Causes of Trouble and Solutions 247
Maintenance Standard Table 249
Required Tools 250
Jig 251
Disassembly 251
Assembly 253
Swing Motor Internal Structural Diagram 257
Assembly and Disassembly of Swing Unit 259
Disassembly 259
Assembly 261
Assembly and Disassembly of Swing Reduction Gear 263
Disassembly 263
Assembly 265
Jig 272
Swing Reduction Gear Structure Diagram 273
Removal and Installation of Counterweight 277
Removal of Counterweight 277
Installation of Counterweight 278
Pressure Measurement and Adjustment Procedures 279
Main Pressure Measurement 279
C Swing Pressure Measurement 279
Drain Volume Measurement Procedures 280
Preparations 280
Swing Motor Drain Volume Measurement 280
Air Bleed Procedure 281
Swing Motor 281
1531764998_004_h _engine_300x3 283
H ENGINE 283
Main Equipment Table (300X3) 288
300X3 288
Engine-related 288
Engine 288
DPD 288
Air Cleaner (double element) 288
Radiator 289
Basic Functions 290
Fuel Gauge 290
Coolant Temperature Gauge 292
DPD Gauge 294
Fuel Economy Gauge 295
Neutral Start 296
Engine Start/Stop Control 297
Power-cut Delay 298
Preheating 299
Throttle 300
Engine Throttle Switch Position Detection 301
Idling Start 307
Auto Idle 308
One-touch Idle 309
Auto Warm Up 310
Quick Warm Up 311
Idling Stop 313
Idle up 314
Work Mode Control 315
Engine Emergency Stop 317
Coolant Level Reduction 317
Engine Air Filter Clog 317
Fuel Filter Clog 318
DPD Regeneration 319
Automatic Regeneration 320
Manual Regeneration 322
Optional Manual Regeneration 324
Hydraulic Assisting Load 327
Main Data 328
Function, Structure, and Operations 331
Symptom 384
Frequent Manual DPD Regeneration 384
DPD Regeneration Taking Excessively Long 385
Engine Start Problem 386
Engine Stalling 388
Engine Hunting, Rough Idling 390
Excessive White Smoke in Exhaust Gas 391
Excessive Black Smoke in Exhaust Gas 391
Abnormal Noise 392
High Fuel Consumption 393
High Oil Consumption 394
Engine Output Deficiency 395
Functional Inspection 397
Inspection of the scan tool power circuit system 397
Start Circuit System Inspection 397
Engine Compression Pressure Inspection 398
Start System Inspection 399
Fuel System Inspection 399
Suction air system inspection 400
Exhaust System Inspection 400
EGR Control System Inspection (if equipped) 400
Glow Control System Inspection 401
DPD Function Inspection 402
OBD System Check 404
Monitor Warning Light Lighting Circuit System Inspection 405
Inspection of the monitor warning light blinking circuit system 405
Inspection of Scan Tool Power Supply System 406
Cautions for Maintenance 407
Removal and Installation of Engine Assembly 408
Removal of Engine Assembly 408
Installation of Engine Assembly 414
Removal and Installation of Fuel Cooler, Engine Intercooler, Radiator, and Oil Cooler 415
Removal and Installation of Fuel Cooler 415
Removal of Fuel Cooler 415
Installation of Fuel Cooler 416
Removal and Installation of Engine Intercooler 416
Removal of Intercooler 416
Installation of Inter Cooler 416
Removal and Installation of Radiator 417
Removal of Radiator 417
Installation of Radiator 421
Removal and Installation of Oil Cooler 421
Removal of Oil Cooler 421
Installation of oil cooler 423
Removal and Installation of Turbo Charger 424
Removal of Turbo Charger 424
Installation of Turbo Charger 424
Removal and Installation of EGR Cooler and EGR Valve 426
EGR valve Removal 426
EGR valve Installation 427
Removal and Installation of Engine Hood 429
Removal of Engine Hood 429
Installation of Engine Hood 430
Removal and Installation of DPD (muffler) 431
Removal of DPD (muffler) 431
Installation of DPD (muffler) 431
Removal and Installation of Cylinder Head Cover 432
Cylinder head cover Removal 432
Cylinder head cover Installation 432
Removal and Installation of Cylinder Head 433
Cylinder head assembly Removal 433
Cylinder head assembly Disassembly 442
Cylinder head assembly Reassembly 447
Cylinder head assembly Installation 455
Cylinder head assembly Inspection 471
Removal and Installation of Cylinder Block 477
Cylinder block Removal 477
Cylinder block Installation 492
Cylinder block Inspection 526
Lubrication System 528
Removal and Installation of Oil Pan 528
Oil pan Removal 528
Oil pan Installation 528
Removal and Installation of Oil Level Switch 528
Oil level switch Removal 528
Oil level switch Installation 529
Removal and Installation of Oil Pump Assembly 529
Oil pump assembly Removal 529
Oil pump assembly Disassembly 541
Oil pump assembly Reassembly 541
Oil pump assembly Installation 542
Oil pump assembly Inspection 565
Engine oil Inspection 566
Removal and Installation of Oil Port Cover 566
Oil port cover Removal 566
Oil port cover Installation 566
Cooling System 568
Removal and Installation of Water Pump Assembly 568
Water pump assembly Removal 568
Water pump assembly Installation 569
Water pump assembly Inspection 570
Removal and Installation of Thermostat 571
Thermostat Removal 571
Thermostat Installation 571
Thermostat Inspection 572
Coolant Inspection 573
Drive belt Inspection 574
Removal and Installation of Overheat Switch 574
Overheat switch Removal 574
Overheat switch Installation 575
Removal and Installation of Exhaust Manifold 576
Exhaust manifold Removal 576
Installation of Exhaust Manifold 577
Exhaust manifold Inspection 577
Disassembly, Removal and Installation of DPD Assembly 578
DPD assembly Disassembly 578
DPD assembly Reassembly 579
DPD assembly Inspection 581
Removal and Installation of Fuel Tank 583
Removal of Fuel Tank 583
Installation of fuel tank 585
Removal and Installation of Fuel Supply Pump 586
Fuel supply pumpRemoval 586
Fuel supply pump Installation 586
Removal and Installation of Common Rail Assembly 590
Common rail assembly Removal 590
Common rail assembly Installation 593
Removal and Installation of Injector 599
Injector Removal 599
Injector Installation 601
Removal and Installation of Starter Motor 606
Removal of Starter Motor 606
Installation of Starter Motor 607
Removal and Installation of Alternator 608
Removal of Alternator 608
Installation of Alternator 608
Preheating System 609
Removal and Installation of Glow Plug 609
Glow plug Removal 609
Glow plug Installation 609
Glow plug Inspection 610
Introduction to the trouble diagnosis 611
Removal and Installation of Suction Control Valve 619
Suction control valve Removal 619
Suction control valve Installation 620
Removal and Installation of Fuel filter pressure 621
Fuel filter pressure sensor Removal 621
Fuel filter pressure sensor Installation 621
Removal and Installation of Engine coolant temperature sensor 622
Engine coolant temperature sensor Removal 622
Engine coolant temperature sensor Installation 622
Engine coolant temperature sensor Inspection 622
Removal and Installation of CKP sensor 623
CKP sensor Removal 623
CKP sensor Installation 623
CKP sensor Inspection 623
Removal and Installation of CMP sensor 623
CMP sensor Removal 623
CMP sensor Installation 624
CMP sensor Inspection 624
Removal and Installation of Oil pressure sensor 624
Oil pressure sensor Removal 624
Oil pressure sensor Installation 624
Oil pressure sensor Inspection 625
Removal and Installation of Boost sensor 625
Boost sensor Removal 625
Boost sensor Installation 625
Removal and Installation of Boost temperature sensor 626
Boost temperature sensor Removal 626
Boost temperature sensor Installation 626
Removal and Installation of IMT sensor 626
IMT sensor Removal 626
IMT sensor Installation 626
Removal and Installation of Exhaust differential pressure sensor 627
Exhaust differential pressure sensor Removal 627
Exhaust differential pressure sensor Installation 627
Exhaust differential pressure sensor Inspection 628
Removal and Installation of Exhaust gas temperature sensor 628
DPD temperature sensor Removal 628
DPD temperature sensor Installation 629
Exhaust gas temperature sensor Inspection 630
Engine-side Diagnostic Trouble Code List 631
Troubleshooting – engine 633
Engine-side Trouble 633
Diagnostic Trouble Code 0016 Abnormally Correlation Between Crankshaft Position and Camshaft Position 633
Diagnostic trouble code 0045 Turbocharger Boost Pressure Control System Abnormality 634
Diagnostic Trouble Code 0087 Fuel Rail System Pressure Low Pressure Error 635
Diagnostic Trouble Code 0088 Fuel Rail System Pressure High Pressure Error 638
Diagnostic Trouble Code 0089 Fuel Rail Pressure Regulator Characteristic Error 641
Diagnostic Trouble Code 0091 Fuel Rail Pressure Regulator Control System Low Input 642
Diagnostic Trouble Code 0092 Fuel Rail Pressure Regulator Control System High Input 644
Diagnostic Trouble Code 0093 Fuel System Leak Detection 645
Diagnostic Trouble Code 0102 Mass Air Flow Sensor System Low Input 648
Diagnostic Trouble Code 0103 Mass Air Flow Sensor System High Input 649
Diagnostic Trouble Code 0112 Intake Temperature Sensor System Low Input 650
Diagnostic Trouble Code 0113 Intake Temperature Sensor System High Input 651
Diagnostic Trouble Code 0117 Engine Coolant Temperature Sensor System Low Input 652
Diagnostic Trouble Code 0118 Engine Coolant Temperature Sensor System High Input 652
Diagnostic Trouble Code 0122 Throttle Sensor System Low Input 653
Diagnostic Trouble Code 0123 Throttle Sensor System High Input 654
Diagnostic Trouble Code 0182 Fuel Temperature Sensor System Low Input 655
Diagnostic Trouble Code 0183 Fuel Temperature Sensor System High Input 656
Diagnostic Trouble Code 0192 Fuel Rail Pressure Sensor System Low Input 658
Diagnostic Trouble Code 0193 Fuel Rail Pressure Sensor System High Input 659
Diagnostic Trouble Code 0201 Injector First Cylinder System Error 660
Diagnostic Trouble Code 0202 Injector Second Cylinder System Error 661
Diagnostic Trouble Code 0203 Injector Third Cylinder System Error 662
Diagnostic Trouble Code 0204 Injector Fourth Cylinder System Error 663
Diagnostic Trouble Code 0205 Injector Fifth Cylinder System Error 664
Diagnostic Trouble Code 0206 Injector Sixth Cylinder System Error 665
Diagnostic Trouble Code 0237 Boost Sensor Circuit Low Input 666
Diagnostic Trouble Code 0238 Boost Sensor Circuit High Input 667
Diagnostic Trouble Code 0336 Crankshaft Position Sensor System Characteristics Error 668
Diagnostic Trouble Code 0340 Camshaft Position Sensor System Error 669
Diagnostic Trouble Code 0404 EGR1 Control System Error 670
Diagnostic Trouble Code 0409 EGR1 Position Sensor System Error 671
Diagnostic Trouble Code 0426 Pre-filtered Exhaust Gas High Temperature Error 673
Diagnostic Trouble Code 0427 Exhaust Temperature Sensor 1 System Low Input 673
Diagnostic Trouble Code 0428 Exhaust Temperature Sensor 1 System High Input 674
Diagnostic Trouble Code 042B Exhaust Gas High Temperature Error Before Oxidation Catalyst 676
Diagnostic Trouble Code 042C Exhaust Temperature Sensor 2 System Low Input 676
Diagnostic Trouble Code 042D Exhaust Temperature Sensor 2 System High Input 677
Diagnostic Trouble Code 0522 Oil Pressure Sensor System Low Input 679
Diagnostic Trouble Code 0523 Oil Pressure Sensor System High Input 680
Diagnostic Trouble Code 0560 System Voltage Error 681
Diagnostic Trouble Code 0563 System Voltage High Input 682
Diagnostic Trouble Code 0601 Control Module Memory Checksum Error 683
Diagnostic Trouble Code 0602 Control Module Program Error 683
Diagnostic Trouble Code 0604 Control Module RAM Error 684
Diagnostic Trouble Code 0606 Control Module Processing Device Error 684
Diagnostic Trouble Code 060B Control Module A/D Converter Processing System Characteristics Error 685
Diagnostic Trouble Code 0638 Throttle Actuator Control System Characteristic Error 685
Diagnostic Trouble Code 0641 Sensor Voltage System Error 687
Diagnostic Trouble Code 0651 Sensor Voltage System Error 688
Diagnostic Trouble Code 0685 ECM Main Relay Control System Low Input 689
Diagnostic Trouble Code 0687 ECM Main Relay Control System High Input 690
Diagnostic Trouble Code 0697 Sensor Voltage System Error 691
Diagnostic Trouble Code 1093 Fuel Rail Pressure Low Pressure Error 692
Diagnostic Trouble Code 1112 Boost Temperature Sensor System Low Input 695
Diagnostic Trouble Code 1113 Boost Temperature Sensor System High Input 696
Diagnostic Trouble Code 1261 Injector Group 1 Voltage Control System Error 697
Diagnostic Trouble Code 1262 Injector Group 2 Voltage Control System Error 697
Diagnostic Trouble Code 1293 Fuel Filter Pressure Sensor System Low Input 698
Diagnostic Trouble Code 1294 Fuel Filter Pressure Sensor System High Input 699
Diagnostic Trouble Code 1404 EGR 1 Close Position Characteristic Error 700
Diagnostic Trouble Code 1455 DPD Restriction 2 701
Diagnostic Trouble Code 1471 DPD Regeneration Error 703
Diagnostic Trouble Code 1621 Control Module EEPROM Error 705
Diagnostic Trouble Code 1655 Sensor Voltage System Error 706
Diagnostic Trouble Code 2146 Injector Group 1 Supplied Voltage System Error 707
Diagnostic Trouble Code 2149 Injector Group 2 Supplied Voltage System Error 709
Diagnostic Trouble Code 2228 Atmospheric Pressure Sensor System Low Input 710
Diagnostic Trouble Code 2229 Atmospheric Pressure Sensor System High Input 711
Diagnostic Trouble Code 242F DPD Restriction 712
Diagnostic Trouble Code 2452 DPD Differential Pressure Sensor System Error 715
Diagnostic Trouble Code 2453 DPD Differential Pressure Sensor System Characteristic Error 716
Diagnostic Trouble Code 2454 DPD Differential Pressure Sensor System Low Input 718
Diagnostic Trouble Code 2455 DPD Differential Pressure Sensor System High Input 719
Diagnostic Trouble Code 2458 DPD Regeneration Time Error 720
Diagnostic Trouble Code 0001 CAN Bus Communication Error 721
Diagnostic Trouble Code 0073 Control Module Communication Error 722
Diagnostic Trouble Code 0101 TCM Communication Error 723
Diagnostic Trouble Code 0110 Turbocharger Control Module Communication Error 724
Data Reference Values 726
Idle Speed 726
Two Pump Relief 727
1531765025_005_j _hydraulic_equipment_pump_operation_system_valve_300x3 729
J HYDRAULIC EQUIPMENT (PUMP, OPERATION SYSTEM VALVE) 729
Main Equipment Table (300X3) 734
300X3 734
Hydraulic Device 734
Hydraulic Pump 734
Control-related 734
Control Valve 734
Solenoid Valve (5 stack) 735
Valve for Left/Right Operations 735
Remote Control Valve for Travel Operations 735
Remote Control Valve Characteristic Diagram 736
Operation Remote Control Valve Control Diagram 736
Travel Remote Control Valve Control Diagram 737
Cushion Valve (heat circuit, with shuttle valve) 737
Selector Valve (option) 737
Basic Functions 738
Oil Temperature Gauge 738
Static Horsepower Control 739
Pressure Boost Control 740
Pump Standby Pressure Control 742
Swing Relief Cut 745
Boom Down Energy Save 746
Auto Energy Save 747
Feed Pump Automatic Stop 747
Hydraulic Fluid Filter Clog 748
Solenoid Sticking Prevention 750
Hot Shutdown Warning 751
Breaker Mode 752
Crusher Mode 752
Port Diagram 753
Hydraulic Pump (standard model) 753
Control Valve 754
Relief Valve 754
5 Stack Solenoid Valve 757
2 Stack Solenoid Valve 758
Remote Control Valves (upper, travel) 759
Remote Control Valves (left-right) 759
Remote Control Valve (travel) 759
Reducing Valve (3 stack) 760
Cushion Valve 760
2-way Selector Valve 761
Direction Valve 761
Shut-off Valve 762
Relief Valve (electromagnetic proportional) 762
Manifold Under Cab 763
Manifold (accumulator section) 763
Manifold (hydraulic tank section) 764
Hydraulic Device 765
Pump P-Q Diagram 765
Main Equipment Structure and Operation Explanation 766
Hydraulic Pump 766
Structure and Operation Explanation 766
Hydraulic Pump Internal Structure Diagram 767
Overall View 767
Drive Shaft Front Side 768
Drive Shaft Rear Side 769
Part Table 770
Rear Side Regulator Internal Structure Diagram 771
Gear Pump 773
Gear Pump Internal Structure Diagram 773
Structure and Operation Explanation 774
Control Valve 775
Basic configuration 775
Operation 775
5 Stack Solenoid Valve Operation Explanation 810
External Shape Diagram and Component Parts 810
Operation Explanation 811
Upper Pilot Valve (remote control valve) 812
Structure 812
Function 812
Operation 813
Structural Diagram 816
Travel Pilot Valve (remote control valve) 817
Operation 817
Pressure Reduction Valve Section 818
Operating Section Damping Mechanism Section 818
Structural Diagram 821
Cushion Valve 822
Structure 822
Operation Explanation 823
Pressure Bleeding Operations 827
Removal and Installation of Hydraulic Oil Tank 828
Removal of Hydraulic Tank 828
Installation of Hydraulic Oil Tank 832
Removal and Installation of Hydraulic Pump 833
300X3 833
Removal of Hydraulic Pump 833
Installation of Hydraulic Pump 835
Removal and Installation of Pump Coupling 838
Removal of Pump Coupling 838
Installation of Pump Coupling 839
Removal and Installation of Control Valve 841
Removal of Control Valve 841
Installation of Control Valve 844
Removal and Installation of Pilot Blocs 848
Removal and Installation of Travel Remote Control Valve 849
Removal of Travel Remote Control Valve 849
Installation of Travel Remote Control Valve 850
Removal and Installation of Operation Remote Control Valve 852
Removal of Operation Remote Control Valve (Left) 852
Installation of Operation Remote Control Valve (Left) 854
Removal of Operation Remote Control Valve (right side) 856
Installation of Operation Remote Control Valve (right side) 858
Removal and Installation of 5 Stack Solenoid 860
Removal of 5 Stack Solenoid Valve 860
Installation of 5 Stack Solenoid Valve 862
Removal and Installation of Cushion Valve 866
Removal of Cushion Valve 866
Installation of Cushion Valve 868
Procedures for Assembly and Disassembly of Hydraulic Pump Main Unit 870
Tools 870
Disassembly Procedures 870
Assembly Procedures 872
Pump Main Unit Maintenance Standards 875
Replacement standards for worn parts 875
Standards for repairing cylinders, valve plates, and swash plates (shoe plates) 875
Tightening torque 876
Overall View 876
Attached diagram 1 pump assembly cross-section diagram 876
Drive Shaft Front Side 877
Drive Shaft Rear Side 878
Part Table 879
Regulator 880
Regulator Operation Explanation 880
Regulator Operation Explanation Diagram 883
Front Side Regulator Internal Structure Diagrams 884
Rear Side Regulator Internal Structure Diagram 886
Procedures for Assembly and Disassembly of Control Valve 888
Disassembly 888
Cautions for disassembly 888
Disassembly procedure 888
Removal of long cap and pull out of main spool 888
Disassembly of arm 1 parallel-tandem spool, neutral cut spool section 889
Disassembly of arm regeneration release valve section 889
Disassembly of load check valve section 890
Disassembly of antidrift valve section 890
Disassembly of relief valve 891
Disassembly of option section 891
Disassembly of straight travel signal control valve 891
Disassembly of other plugs 891
Disassembly of add-on section 891
Disassembly of valve housing union bolt 892
Cleaning 892
Inspection 892
Cautions for Assembly 892
Cautions for O-Ring handling 892
Cautions for spool handling 892
Adhesive Application Method (for male thread section and female thread section of parts requiring adhesion) 892
Procedure for assembly of sub-assembly 893
Assembly of spool assembly (main spool) 893
Assembly of arm 1 parallel-tandem spool assembly 893
Assembly of neutral cut spool assembly 893
Assembly of antidrift valve assembly 894
Procedure for assembly of control valve main unit 894
Assembly of relief valve 894
Assembly of load check valve 894
Assembly of antidrift valve 895
Assembly of option section 895
Assembly of arm regeneration release valve 895
Assembly of arm 1 parallel-tandem spool 895
Assembly of neutral cut spool 895
Assembly of main spool 895
Assembly of straight travel signal control valve 896
Assembly of add-on section 896
Assembly of other plugs 896
Internal Structure Diagram 897
Parts List 904
Relief valve 905
Procedures for assembly and disassembly of main relief valve 905
Procedures for assembly and disassembly of overload relief valve 906
Procedures for assembly and disassembly of low-pressure relief valve 906
Procedures for assembly and disassembly of add-on main relief valve 907
Relief valve adjustment 908
Installation 908
Run 908
Troubles and Countermeasures 908
Procedures for Assembly and Disassembly of Operation Remote Control Valve 910
Maintenance Procedures 910
Required Tools and Tightening Torque 910
Maintenance Standards 911
Disassembly Procedures 912
Assembly Procedures 914
Causes of Trouble and Countermeasures 917
Procedures for Assembly and Disassembly of Travel Remote Control Valve 921
Maintenance Procedures 922
Disassembly Procedures 922
Assembly Procedures 926
Causes of Trouble and Countermeasures 931
Assembly and Disassembly of Cushion Valve 934
Disassembly Procedures 934
Reverse Operation Spool Section 934
Check Plunger Section with Throttle 934
Shuttle Valve Section 934
Assembly Procedures 935
Reverse Operation Spool Section 935
Check Plunger Section with Throttle 935
Shuttle Valve Section 935
Written Materials 936
Pressure Measurement and Adjustment Procedures 938
Procedures for Pressure Measurement from the Monitor Display 938
Monitor and Switch Panel 938
Pressure Measurement Method 938
Operating Method 938
PROCEDURES FOR MEASURING HYDRAULIC OIL TEMPERATURE FROM THE MONITOR DISPLAY 939
Hydraulic Oil Temperature Measurement Method 939
Operating Method 939
Procedures for Pressure Measurement by Installing Pressure Gauge 940
Preparations 940
Items to prepare 940
Pressure Measuring Port 941
Control Valve 943
Location of Relief Valves 943
Pressure Measurement Preparations 945
Pressure Measurement 946
Main Pressure Measurement 946
A Attachment Pressure Measurement 948
Boom-down pressure measurement 949
D Option Line Pressure Measurement 949
Pilot Pressure Measurement 949
Installation of Pressure Gauge 949
Negative Control Pressure Measurement 950
Installation of Pressure Gauge 950
Pressure Adjustment 950
Main Pressure Adjustment 950
Pressure Measurement and Adjustment Preparation Work 950
Main Relief Pressure Adjustment 953
Overload Relief Pressure Adjustment 953
Swing Relief Pressure Adjustment 954
Pilot Pressure Adjustment 955
Hydraulic Pump Flow Measurement Procedures 956
Preparations 956
Items to Prepare 956
Work Preparations 957
Flow Measurement 959
Air Bleed Procedure 960
Hydraulic Pump 960
Check 960
Hydraulic Equipment Layout 961
Overall view 962
Pump Chamber Hydraulic Equipment Layout 963
SWING BODY CENTER SECTION HYDRAULIC EQUIPMENT 965
HOUSING LEFT SIDE HYDRAULIC EQUIPMENT LAYOUT 966
LAYOUT OF HYDRAULIC EQUIPMENT IN CAB 967
1531765274_006_n _cab_300x3 969
N CAB 969
Removal and Installation of Operator’s Seat 972
Removal of Operator’s Seat 972
Installation of Operator’s Seat 972
Removal and Installation of Cab Assembly 973
Removal of Cab Assembly 973
Installation of Cab Assembly 977
Removal and Installation of Wiper 978
Removal of Wiper 978
Installation of wiper 978
Removal and Installation of Cab Front Glass 979
Removal of Cab Front Glass 979
Installation of Cab Front Glass 980
Removal and Installation of Right-side Window Glass 981
Removal of Right-side Window Glass 982
Installation of Right-side Window Glass 983
Removal and Installation of Door (Upper) Sash Glass 986
Removal of Door (Upper) Sash Glass 987
Installation of Door (Upper) Sash Glass 988
Window Lock Adjustment Procedures 991
Window Lock (front side) 991
Window Lock (rear side) 991
Tightening torque 993
1531765298_007_r _electrical_parts_300x3 995
R ELECTRICAL PARTS 995
Electrical and Engine Functions and Service Support 1000
Basic Functions 1001
Monitor Display Dimming 1001
Eco Gauge 1002
Diagnostic Trouble Code Indicator 1003
Clock 1004
Accessories 1005
Working Light 1005
Room lamp 1006
Radio Mute 1008
Wiper and Washer 1009
Horn 1010
Back/Side View Monitor 1011
Precautions When Installing the Camera 1011
Anti-theft 1012
Enabling the anti-theft function 1012
Password 1012
Immobilizer Key 1013
Battery Disconnect Switch 1014
Reset 1015
Half Reset/All Reset 1015
Milli-amp List 1016
Safety 1018
Lever Lock 1018
Alternator Power Generation Detection 1019
Service Support 1021
Screen Operations 1021
Screen Display List 1021
CHECK Screen List 1022
MACHINE STATUS 1022
FAULT HISTORY 1026
WORK HISTORY 1027
ENGINE HISTORY 1029
HYDRAULIC HISTORY 1033
PART NUMBER 1035
List of Control Unit Screens 1036
CONTROLLER A 1037
CONTROLLER B 1040
MONITOR 1043
ECM 1045
AIR CONDITIONER 1045
COMMUNICATION 1046
SETUP Screen List 1047
MACHINE SELECT 1047
PARAMETERS 1051
RESET Screen List 1053
Setting 1054
Model Selection 1054
Throttle Volume Default Setting Value 1059
Password Setting 1059
Clock Adjustment 1060
Parameter Setting 1061
Option Flow Pressure Setting 1062
Screen Brightness Setting 1065
Service Monitor 1066
How to get into “Service Screen” 1066
General Operation on Service Monitor 1066
Engine Service Monitor 1067
Service Monitor Structure 1067
ENGINE INFORMATION 1068
Data Confirmation 1068
Data Transfer (Copy) 1068
QR (INJECTOR) CODE 1070
Injector Number 1070
Screen Layout 1070
Data Source Selection 1071
Manual Input 1071
DEVICE TEST 1072
Common Rail Pressure Test 1072
Injector Balance Test 1073
Injector Forced Drive Test 1074
ECM Memory Clear 1074
DPD Slow Regeneration 1075
DPD Manual Regeneration 1076
DPD Automatic Regeneration 1077
EGR Valve Control Test (if equipped) 1077
VG Turbo Control Test 1078
Intake Throttle Control Test 1078
Turbo Boost Test 1079
Computer Explanation 1080
Connection Connector Pin Layout 1086
Computer A 1086
Computer B 1087
Monitor 1088
Sequence Circuit Diagram 1089
Code table 1089
Overall 1092
Block diagram 1094
Computer A 1094
Computer B 1095
ECM 1096
Monitor 1097
Air Conditioner 1098
Lever Lock 1099
Horn 1099
Working lights 1099
Option 1100
Other 1101
Electrical Symbol List 1102
Electrical Equipment Layout Diagram 1103
Main Unit Left Side Layout Diagram (radiator chamber) 1104
Engine Section Layout Diagram 1105
Main Unit Right Side Layout Diagram (pump chamber) 1108
Main Unit Center Section Layout Diagram 1110
Cab Layout Diagram 1 1111
Cab Layout Diagram 2 1113
Layout Around Operator Seat 1115
Stand Alone Parts Diagram 1116
Removal and Installation of Wiper Controller 1138
Removal of Wiper Controller 1138
Installation of wiper controller 1138
Removal and Installation of Wiper Motor 1139
Removal of Wiper Motor 1139
Installation of wiper motor 1140
Removal and Installation of Monitor 1141
Removal of Monitor 1141
Installation of Monitor 1142
ECM Replacement Procedure 1143
Removal and Installation of ECM 1144
Removal of ECM 1144
Installation of ECM 1144
Removal and Installation of Computer A 1145
Removal of Computer A 1145
Installation of Computer A 1145
Removal and Installation of Computer B 1146
Removal of Computer B 1146
Installation of Computer B 1146
Air Conditioner Overall Diagram 1147
Frame 1147
Cab 1149
Equipment Layout Diagram 1152
Circuit Diagram 1154
Air Conditioner Circuit Diagram 1154
Explanation of Functions 1156
Explanation of Control 1156
Air Mix Motor Actuator Control 1157
Blow Mode Motor Actuator Control 1157
Refresh/Recirculate Switch Motor Actuator Control 1158
Blower Amp Control 1159
Compressor Clutch Control 1161
COOLMAX Control and HOTMAX Control 1162
Abnormality Detection and Control after Abnormality Detected 1162
Monitor Mode 1166
Door Switch Control 1167
Inside Air Filter Clogging Detection Control 1168
Actuator Inspection 1170
Air Mix Motor Actuator Inspection 1170
Refresh/Recirculate Switch Motor Actuator Inspection 1171
Mode Motor Actuator Inspection 1172
Self-diagnosis Function with Panel Display 1173
Abnormality Display and Self-check Procedures 1173
Abnormality Display Position 1173
Explanation of Abnormality Display 1173
Motor Actuator Abnormality 1173
Sensor Abnormality 1174
Explanation of Monitor Mode 1174
Monitor Mode Display Position 1174
Monitor Mode Display Operating Method 1175
Display Contents in Monitor Mode 1176
Air Conditioner Troubleshooting 1177
Part Function and Good/Poor Judgment 1182
Control Panel 1182
Blower Amp 1182
Relay 1183
Air Mix Actuator 1184
Blow Mode Actuator 1185
Evaporator Sensor 1185
Dual Pressure Switch 1186
Solar Radiation Sensor 1187
Inside Air Sensor 1187
Assembly and Disassembly of Unit 1188
Removal of Blower Unit 1188
Replacement of Blower Motor 1188
Replacement of Blower Amp 1188
Removal of Heater Core 1189
Removal of Heat Case Right/Left 1189
Replacement of Evaporator and Expansion Valve 1189
Installation of Evaporator Sensor 1190
Replacement of Motor Actuator 1190
Removal and Installation of Compressor 1191
Removal of Compressor 1191
Installation of Compressor 1191
Removal and Installation of Condenser 1192
Removal of Condenser 1192
Installation of Condenser 1193
Removal and Installation of Receiver Dryer 1194
Removal of Receiver Dryer 1194
Installation of Receiver Dryer 1195
Work Precautions 1196
Work Procedures 1197
Air Conditioner Refrigerant Filling is Divided into the “Vacuum Operation” and “Gas Filling Operation” 1197
Operation Chart 1197
Tools 1198
Filling Procedures 1199
Charging Hose Connection Positions 1199
Gauge Manifold Connection 1200
Vacuuming 1201
Gas Filling Operation, High-pressure Side 1201
Gas Filling Operation, Low-pressure Side 1202
1531765389_r _electrical_parts-oversize_pages 1205
A3 Assembly Diagrams 1207
R 1207
Electrical Connector Wiring Diagram 1207
Main Frame 1208
Cab Main Harness 1210
R 1215
Electrical Parts and Wiring Assembly Diagram 1215
Frame 1216
Engine and Pump 1218
Attachments 1220
Battery 1222
Cab 1224
1531765523_008_v _attachments_300x3 1227
V ATTACHMENTS 1227
Main Equipment Table (300X3) 1230
300X3 1230
Backhoe Attachment 1230
Cylinder 1230
Maintenance Standards 1231
Attachment (backhoe) 1231
1 Boom and Swing Frame Installation Section 1231
2 Boom Cylinder and Swing Frame Installation Section 1232
3 Boom and Boom Cylinder Installation Section 1232
4 Boom and Arm Cylinder Installation Section 1233
5 Boom and Arm Installation Section 1233
6 Arm and Arm Cylinder Installation Section 1234
7 Arm and Bucket Cylinder Installation Section 1234
8 Arm and Arm Link Installation Section 1235
9 Bucket and Bucket Link Installation Section 1235
10 Bucket Link and Bucket Cylinder Installation Section 1236
11 Bucket and Arm Installation Section 1237
Removal and Installation of Bucket Cylinder 1238
Removal of Bucket Cylinder 1238
Installation of Bucket Cylinder 1240
Removal and Installation of Arm Cylinder 1242
Removal of Arm Cylinder 1242
Installation of Arm Cylinder 1244
Removal and Installation of Boom Cylinder 1246
Removal of Boom Cylinder 1246
Installation of Boom Cylinder 1248
Procedures for Operation/Assembly and Disassembly of Hydraulic Cylinder 1251
Specifications and Structure Diagram (including the assembly diagram and parts table) 1251
Basic functions 1251
Function of Each Location 1251
Cylinder Head Assembly 1251
Piston Assembly 1252
Pipe assembly 1254
Handling Precautions 1255
Precautions for Installing the Cylinder on the Machine Body 1255
Usage Cautions 1255
Maintenance and Inspection Cautions 1256
Maintenance Inspection and Service 1257
Trouble Diagnostics 1258
Storage Standards 1262
Storing Parts Individually (In principle, store indoors ) 1262
When Mounted on Vehicle Body 1263
Recommended Anti-rust Oil 1263
Assembly and Disassembly Procedures 1263
Preparations ····· Prepare the Following before Starting Disassembly 1263
General Work Precautions 1263
Maintenance Standards 1263
Inspection after Assembly 1264
Required Tool 1265
General Tool 1265
Wrench Assembly (U1) 1266
Piston Ring Expander 1267
Bushing Tool Kit 1267
Disassembly Procedures 1268
Drain the Oil 1268
Secure the Cylinder 1268
Removal of Cylinder Head 1268
Pull out the Piston Rod 1268
Fasten the Piston Rod 1269
Remove the Piston Nut 1269
Removal of Piston etc 1269
Disassembly of the Retraction Side Cushion Ring 1270
Remove the Piston Seal 1270
Disassembly of the Buffer Ring 1270
Disassembly of U-ring and Wiper Ring 1270
Removal of O-ring and Backup Ring 1270
Disassembly of Bushing 1270
Removal of Pin Bushing 1271
Cleaning and Storage 1271
Assembly Procedures 1271
Assembly of Piston Rod Assembly 1271
Assembly of Piston Assembly 1271
Piston Rod Assembly 1272
Installation of Pin Bushing 1274
Replacement of Seals 1274
Assembly of Cylinder Head Assembly 1275
Assembly of Piston Assembly 1275
Insertion of Piston Rod into the Tube 1276
Cylinder Head Tightening 1276
Installation of Line 1276
Assembly of Piston Rod Assembly 1277
Assembly of Piston Assembly 1277
Piston Rod Assembly 1278
Structural Diagram 1282
Boom cylinder 1282
Arm Cylinder 1284
Bucket Cylinder 1286
Port Diagram 1288
HBCV 1288
Removal and Installation of HBCV 1289
Removal and Installation of Arm HBCV 1289
Removal of Arm HBCV 1289
Installation of arm HBCV 1289
Removal and Installation of Boom HBCV 1290
Removal of Boom HBCV 1290
Installation of boom HBCV 1291
Air Bleed Procedure 1292
HBCV 1292
Boom Cylinder HBCV 1292
Arm Cylinder HBCV 1293
Removal and Installation of Bucket 1294
Removal of Bucket 1294
Installation of Bucket 1294
Removal and Installation of Bucket Link 1296
Removal of Bucket Link 1296
Installation of Bucket Link 1296
Removal and Installation of Arm 1298
Removal of Arm 1298
Installation of Arm 1299
Removal and Installation of Boom 1300
Removal of Boom 1300
Installation of Boom 1303
1531765540_009_z _other_300x3 1307
Z OTHER 1307
Specifications 1311
300X3 1311
ENGINE 1311
HYDRAULIC SYSTEM 1311
HYDRAULIC CONTROLS 1312
ELECTRICAL SYSTEM 1312
OPERATOR ENVIRONMENT 1313
UNDERCARRIAGE 1313
MASS 1314
DIGGING FORCE (with 1 1 m3 Sumitomo Bucket) (ISO 6015) 1314
DIMENSIONS 1314
WORKING RANGES 1314
SYSTEM FLUID CAPACITIES AND SPECIFICATIONS 1315
Arm Dimension 1316
300X3 1316
Standard Arm [3 18 m (10 4331 ft )] 1316
Short Arm [2 65 m (8 6942 ft )] 1318
Long Arm [3 66 m (12 0079 ft )] 1320
Main Unit Weight 1322
300X3 1322
Divided Weight (standard specifications) 300X3 1322
Stand Alone Part Weight 1323
Shoe Weight (per side) 1323
Arm Weight 1323
Bolt Size and Torque Table 1324
Special Torque Settings 1324
Overall View 1329
300X3 1329
Standard Arm [3 18 m (10 4331 ft )] 1329
Short Arm [2 65 m (8 6942 ft )] 1330
Long Arm [3 66 m (12 0079 ft )] 1331
WORK RANGE DIAGRAM 1332
300X3 1332
Standard Arm [3 18 m (10 4331 ft )] 1332
Short Arm [2 65 m (8 6942 ft )] 1334
Long Arm [3 66 m (12 0079 ft )] 1336
New Machine Performance Judgment Table 1338
Table of Standards 1338
Measurement Method 1340
Engine Speed 1340
Pressure in Each Section 1340
Cylinder Falling Amount 1340
Attachment Speed 1340
Swing Speed 1341
Swing (180°) Brake Angle 1341
Travel Speed 1341
Travel Deviation 1342
Travel Sprocket Speed 1343
Shoe Tension Amount 1343
Swing Ball Race Bearing Movement Amount and Bucket Tip Movement Amount 1343
FLUIDS AND LUBRICANTS 1345
HYDRAULIC FLUID 1345
Engine Oil 1345
FUEL 1345
Conditions applicable to diesel fuel 1345
Recommended Conditions That Can Be Applied To Diesel Fuel 1345
Main Unit-side Diagnostic Trouble Code List 1346
Main Unit-side Trouble 1348
Diagnostic Trouble Code: 7000 P1 Pressure Sensor Signal Abnormality 1348
Diagnostic Trouble Code: 7001 P2 Pressure Sensor Signal Abnormality 1350
Diagnostic Trouble Code: 7002 N1 Pressure Sensor Signal Abnormality 1352
Diagnostic Trouble Code: 7003 N2 Pressure Sensor Signal Abnormality 1354
Diagnostic Trouble Code: 7004 Bottom Pressure Sensor Signal Abnormality 1356
Diagnostic Trouble Code: 7006 Rod Pressure Sensor Signal Abnormality 1358
Diagnostic Trouble Code: 7020 Upper Pressure Sensor Signal Abnormality 1360
Diagnostic Trouble Code: 7021 Swing Pressure Sensor Signal Abnormality 1362
Diagnostic Trouble Code: 7022 Travel Pressure Sensor Signal Abnormality 1364
Diagnostic Trouble Code: 7023 Arm-in Pressure Sensor Signal Abnormality 1366
Diagnostic Trouble Code: 7040 Fuel Level Sensor Signal Abnormality 1368
Diagnostic Trouble Code: 7041 Oil Temperature Sensor Signal Abnormality 1370
Diagnostic Trouble Code: 7060 Boom Angle Sensor Signal Abnormality 1372
Diagnostic Trouble Code: 7061 Arm Angle Sensor Signal Abnormality 1374
Diagnostic Trouble Code: 7063 Return Filter Clog Switch Abnormality 1376
(Other than breaker specifications) 1376
Diagnostic Trouble Code: 7065 Boom-up Pilot Pressure Sensor Signal Abnormality 1377
Diagnostic Trouble Code: 7067 Bucket-close Pilot Pressure Sensor Signal Abnormality 1379
Diagnostic Trouble Code: 7200 Swing Brake Solenoid Signal Abnormality 1381
Diagnostic Trouble Code: 7201 Travel High-speed Solenoid Signal Abnormality 1383
Diagnostic Trouble Code: 7202 Pressure Boost Solenoid Signal Abnormality 1385
Diagnostic Trouble Code: 7203 Travel Alarm Buzzer Signal Abnormality 1388
Diagnostic Trouble Code: 7204 Power Save Solenoid Signal Abnormality 1390
Diagnostic Trouble Code: 7206 Option Line Switchover Solenoid Signal Abnormality 1393
Diagnostic Trouble Code: 7207 Free Swing Solenoid Signal Abnormality 1395
Diagnostic Trouble Code: 7212 Shut-off Solenoid Signal Abnormality 1397
Diagnostic Trouble Code: 7240 Pump Horsepower Proportional Valve Signal Abnormality 1399
Diagnostic Trouble Code: 7241 P1 Flow Control Proportional Valve Signal Abnormality 1401
Diagnostic Trouble Code: 7242 Fan Proportional Valve Signal Abnormality 1403
Diagnostic Trouble Code: 7246 2 Pumps Flow Solenoid Signal Abnormality 1405
Diagnostic Trouble Code: 7247 Boom-down Proportional Valve Signal Abnormality 1407
Diagnostic Trouble Code: 7248 Arm-in Proportional Valve Signal Abnormality 1409
Diagnostic Trouble Code: 7250 Option Relief Pressure Proportional Valve Signal Abnormality 1411
Diagnostic Trouble Code: 7253 DPD Regeneration Request Output Signal Abnormality 1413
Diagnostic Trouble Code: 7254 Washer Output Abnormality 1415
Diagnostic Trouble Code: 7400 Abnormally High Coolant Temperature [(105°C (221 0°F) or higher)] 1417
Diagnostic Trouble Code: 7401 Abnormally High Coolant Temperature [ 110 °C ( 230 0 °F )or higher ] 1418
Diagnostic Trouble Code: 7404 Abnormally High Oil Temperature [98 °C (208 4 °F) or higher] 1419
Diagnostic Trouble Code: 7405 Abnormally High Boost Temperature [ 80 °C ( 176 0 °F )or higher ], 7406 Abnormally High Boost Temperature [ 90 °C ( 194 0 °F )or higher ] 1420
Diagnostic Trouble Code: 7420 Abnormally Low Alternator Voltage 1421
Diagnostic Trouble Code: 7421 Coolant Level Reduction 1423
Diagnostic Trouble Code: 7422 Abnormally Low Engine Oil Pressure 1424
Diagnostic Trouble Code: 7423 Air Cleaner Clogging 1425
Diagnostic Trouble Code: 7424 Return Filter Clogging (with breaker) 1426
Diagnostic Trouble Code: 7426 Fuel Filter Clogging 1 1427
Diagnostic Trouble Code: 7427 Fuel Filter Clogging 2 1428
Diagnostic Trouble Code: 7601 Monitor Communication Abnormality 1429
Diagnostic Trouble Code: 7602 ECM Communication Abnormality 1430
Diagnostic Trouble Code: 7605 ECM Mismatch 1431
Diagnostic Trouble Code: 7606 EEPROM Data Abnormality 1432
Diagnostic Trouble Code: 7607 Computer C Communication Abnormality 1433
Diagnostic Trouble Code: 7608 Camera Abnormality 1434
Diagnostic Trouble Code: 7609 EEPROM (B) Data Abnormality 1436
Diagnostic Trouble Code: 7610 EEPROM (C) Data Abnormality 1437
Diagnostic Trouble Code: 7611 Computer A Communication Abnormality 1438
Diagnostic Trouble Code: 7612 Air Conditioner Communication Abnormality 1439
Diagnostic Trouble Code: 7613 Monitor Communication CAN Abnormality 1440
Diagnostic Trouble Code: 7614 Air Conditioner Panel Mismatch 1441
List of special tools 1442
NUMERICAL VALUE CONVERSION TABLE 1442
Unit conversion rate 1442
Length 1442
Area 1444
Volume 1445
Weight 1447
Pressure 1448
Torque 1449
Temperature 1450
A 1453
Travel Motor Special Tool 1453
300X3 1453
Take-up Roller Special Tool 1460
300X3 1460
Upper Roller Special Tool 1461
300X3 1461
Lower Roller Special Tool 1462
300X3 1462
Grease Cylinder Special Tool 1462
300X3 1462
Center Joint Special Tool 1463
300X3 1463
C 1464
Swing Motor Special Tool 1464
300X3 1464
H 1466
Engine Oil Filter Special Tool 1466
300X3 1466
Fuel Filter Special Tool 1466
300X3 1466
Injector Special Tool 1466
300X3 1466
Circuit Test Special Tool 1467
250X3/300X3/350X3/470X3 1467
Valve Guide Special Tool 1467
300X3 1467
Cylinder Head Special Tool 1467
300X3 1467
Head Bolt Special Tool 1470
300X3 1470
Crankshaft Special Tool 1470
300X3 1470
Camshaft Special Tool 1472
300X3 1472
Valve Spring Special Tool 1473
300X3 1473
Piston Special Tool 1473
300X3 1473
J 1475
Remote Control Valve Special Tool 1475
300X3 1475
R 1477
Gas Filling Special Tool 1477
300X3 1477
V 1478
Attachment Special Tool (for Cylinder Assembly) 1478
Special Jigs Part Number List 1478
Attachment Special Tool (Other) 1479
300X3 1479
1536860400_001a_electrical300x3_page1 1480
1536860417_001a_electrical300x3_page2 1481
1536860427_001b_electrical300x3_page1_remotecare 1482
1536860436_002_hydraulic300x3_page1 1483

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