Caterpillar 318D2 Excavator Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar 318D2 Excavator, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Caterpillar 318D2 Excavator workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
UENR3224 - Schematic (318D2 Excavator Hydraulic System - Attachment).pdf
UENR3225 - Schematic (318D2 Excavator Hydraulic System - Medium Pressure With F4 Valve; 389-2420-02 (For Serial Numbers SGB10001-UP)).pdf
UENR3679 - Schematic (318D2 Excavator Hydraulic System).pdf
UENR5647 - Specifications (318D2 Excavator Machine Systems).pdf
UENR5648 - Systems Operation (318D2 Excavator Machine System).pdf
UENR5649 - Testing and Adjusting (318D2 Excavator Machine System).pdf
UENR5666 - Systems Operation & Testing and Adjusting (312D2; 313D2 and 318D2 Excavators Tool Control System).pdf
UENR5933 - Troubleshooting (318D2 Excavator Machine Systems).pdf
UENR7325 - Disassembly and Assembly (318D2 Excavator Engine Supplement).pdf
UENR7326 - Disassembly and Assembly (318D2 Excavator Machine Systems).pdf
UENR8020 - Schematic (318D2 Excavator Electrical System (SGB10001-UP and HBP10001-UP)).pdf
PRODUCT DETAILS:
Total Pages: 1,702 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
UENR3224 - Schematic (318D2 Excavator Hydraulic System - Attachment)...2
UENR3225 - Schematic (318D2 Excavator Hydraulic System - Medium Pressure With F4 Valve; 389-2420-02 (For Serial Numbers SGB10001-UP))...4
Features...4
Cover Page...6
Information...0
Component Location...7
Tap Location...8
Schematic...9
Machine Views...0
Cab View - Top...10
Component Locations...11
Main Control Valve...12
Main Pump...13
Medium Pressure W / F4 Valve...14
UENR3679 - Schematic (318D2 Excavator Hydraulic System)...15
Features...15
Cover Page...16
Information...0
Component location...17
Tap Location...18
Fluid Power Symbols...19
Electrical Symbols...20
Schematic...21
Machine Views...0
Machine Component location...22
Cap View...23
Main Control Valve...24
Main Pump...25
UENR5647 - Specifications (318D2 Excavator Machine Systems)...26
Air Cleaner...29
Main Hydraulic Pump...31
Gear Pump - Pilot...37
Main Control Valve...38
Main Control Valve - Mounting...49
Pump Lines - Output; Hydraulic Oil Cooler Bypass...50
Pump Coupling...52
Pump Control Valve...53
Front Lines...54
Hydraulic Oil Lines - Hydraulic Tank and Filter...56
Boom Lines...58
Boom Cylinder...59
Boom Cylinder Lines...61
Boom - 5.1 m (16.73 ft)...65
Stick - 2.6 m (8.53 ft)...67
Stick Lines - Long...69
Stick Lines...70
Stick Cylinder...71
Stick Cylinder Lines...73
Bucket Cylinder Lines...74
Bucket Cylinder...75
Bucket Adjuster...77
Bucket Linkage - With Lifting Eye...78
Hydraulic Tank Mounting...80
Hydraulic Tank and Filter...82
Hydraulic Oil Cooler Lines Group...85
Check Valve (Hydraulic Oil Cooler Bypass)...87
Pilot Oil Filter and Relief Valve...88
Control Manifold (Pilot Oil)...89
Pressure Reducing Valve (Boom and Stick Priority)...91
Swing Cushion Valve...93
Relief Valve (Pilot)...94
Pilot Valve (Travel)...95
Accumulator (Pilot)...97
Pilot Lines - Joystick and Pedals...100
Pilot Lines...101
Pilot Lines - Filter and Pilot Pump...103
Shuttle Valve (Pilot Lines)...105
Swing Motor...106
Fasteners - Final Drive and Swing Drive...107
Swing Drive...110
Swing Gear and Bearing...114
Sprocket...117
Travel Motor...118
Travel Motor and Mounting...122
Travel Motor Guard...123
Travel Counterbalance Valve...124
Travel Motor Lines...127
Final Drive...129
Final Drive - Without Motor...132
Front Idler...133
Track Carrier Roller...135
Track Roller (Single Flange)...137
Track Roller Mounting...141
Track...143
Fuel Lines...145
Liquid Level Sensor (Water Separator)...147
Fuel Tank...148
Fuel Tank and Mounting...149
Engine Mounting...150
Upper Frame...151
Counterweight...153
Auxiliary Hydraulic Lines - High Pressure Reach Boom...154
Auxiliary Hydraulic Lines...155
Auxiliary Hydraulic Lines - Coupler Lines...158
Grease Lines...160
Heater and Air Conditioner Mounting...161
Air Conditioner Lines...162
Refrigerant Compressor...164
Electronic Control Mounting...166
Joystick Control...167
Hydraulic Pedal Control (Travel)...168
Cab...169
UENR5648 - Systems Operation (318D2 Excavator Machine System)...171
General Information...173
Main Hydraulic System...174
Main Electrical System...179
Engine Control...185
Electrical Input Components...193
Electrical Output Components...198
Electronic Control Module...201
Related Components...206
Pilot System...208
Gear Pump (Pilot)...212
Hydraulic Filter (Pilot)...214
Relief Valve (Pilot)...216
Accumulator (Pilot)...217
Solenoid Valve (Hydraulic Lockout)...220
Pilot Valve (Joystick)...225
Solenoid Valve (Proportional Reducing) - Power Shift System...229
Main Hydraulic Pump...234
Pump Control (Main Hydraulic) - Main Pump Regulator...238
Main Control Valve...247
Negative Flow Control System...257
Relief Valve (Main)...262
Relief Valve (Line)...266
Check Valve (Load)...270
Boom System...274
Boom Drift Reduction Valve...283
Stick System...287
Stick Drift Reduction Valve...295
Bucket System...300
Cylinders (Boom; Stick and Bucket)...303
Swing System...305
Swing Motor...310
Pilot Valve (Swing Parking Brake)...314
Relief Valve (Swing)...318
Oil Makeup (Swing System)...322
Relief Valve (Cushion Crossover) - Anti-Reaction Valve...325
Swing Drive...336
Travel System...341
Pilot Valve (Travel)...362
Travel Motor...365
Travel Parking Brake...373
Displacement Change Valve...378
Travel Counterbalance Valve...387
Oil Makeup (Travel System)...400
Control Valve (Straight Travel)...405
Final Drive...410
Swivel...414
Return Hydraulic System...416
Check Valve (Return Makeup) - Slow Return Check Valve...418
Bypass Valve (Return) - Bypass Check Valve...420
Hydraulic Tank and Filter...422
Oil Filter (Return) - Case Drain Filter...424
Hydraulic Oil Cooler...426
Graphic Color Codes...428
UENR5649 - Testing and Adjusting (318D2 Excavator Machine System)...430
General Testing and Adjusting Information...432
Visual Inspection...433
System Pressure - Release...434
Main Hydraulic Pump Air - Purge...435
Overload Warning - Set - If Equipped...438
Operational Checks...445
Engine Performance - Test - Engine Speed...446
Travel on Level Ground - Test...449
Travel on Level Ground - Test - Optional Test...452
Automatic Travel Speed Control - Test...454
Machine Drift on a Slope - Check...460
Swing Speed and Overswing on Level Ground - Check...463
Swing Speed and Swing Drift on a Slope - Check...466
Cylinder Drift - Check - Empty Bucket...471
Cylinder Drift - Check - Loaded Bucket...475
Cylinder Speed - Check...477
Relief Valve (Pilot) - Test and Adjust...481
Accumulator (Pilot) - Test and Charge...484
Solenoid Valve (Proportional Reducing) - Calibrate - Power Shift Pressure...490
Relief Valve (Main) - Test and Adjust...496
Relief Valve (Line) - Test and Adjust...504
Swing Motor - Test - Measurement of Case Drain Oil...516
Relief Valve (Swing) - Test and Adjust...521
Swing Bearing Movement - Measure...526
Travel Motor - Test - Measurement of Case Drain Oil...532
Relief Valve (Crossover) - Test...543
Relief Valve (Crossover) - Test and Adjust...552
Main Pump (Flow) - Test - Hydraulic Power...560
Pump Control (Output Flow) - Test - Two Pump Calibration...569
Pump Control (Output Flow) - Test - One Pump Calibration (Optional Test)...577
Pump Control (Output Flow) - Adjust...588
Pump Control (Negative Flow) - Test...593
Pump Control (Negative Flow) - Adjust...609
Gear Pump (Pilot) - Test...611
Specifications...618
UENR5666 - Systems Operation & Testing and Adjusting (312D2; 313D2 and 318D2 Excavators Tool Control System)...624
General Information...626
System 1 One-Way_One Pump...634
System 23 Combined Function...636
Medium Pressure Hydraulic System - F4 Valve...648
Switches...652
Sensors...662
Solenoid Valves...665
Relays...675
Monitor Overview...677
Service Tools...679
System Identification...683
Service Mode - Enter...691
Process for Setting Up the Work Tool...694
Work Tool Parameter - Program...710
Work Tool - Select...720
System 1 Default Value of Work Tool Parameters...724
System 1 Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control...727
System 1 Relief Valve (Line) - Test and Adjust - Tool Relief Valve...729
System 23 Default Value of Work Tool Parameters...737
System 23 Joystick Slide Control - Calibrate...747
System 23 Solenoid Valve (Proportional Reducing) - Calibrate...755
System 23 Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control...758
System 23 Relief Valve (Line) - Test and Adjust - Attachment Control Valve...770
System 23 Relief Valve (Line) - Test and Adjust - Number 1 Relief Valve and Number 2 Relief Valve...775
Medium Pressure Default Value of Work Tool Parameters - F4 Valve...778
Medium Pressure Joystick Slide Control - Calibrate...787
Medium Pressure Solenoid Valve (Proportional Reducing) - Calibrate - F4 Valve...795
Medium Pressure Relief Valve (Line) - Test and Adjust - F4 Valve...799
UENR5933 - Troubleshooting (318D2 Excavator Machine Systems)...803
General Information...805
Service Tools...806
Connector Locations...809
Diagnostic Capabilities...813
Diagnostic Trouble Codes...817
Determining Diagnostic Trouble Codes...822
Symptom Troubleshooting...828
Emerging Symptom Information...830
Alarm - Test...831
CAN Data Link - Test...836
Charging System - Test...845
Electrical Connector - Inspect...846
Electrical Power Supply - Test...853
Engine Speed Control - Test...857
Relay - Test...861
Sensor Signal (Analog; Active) - Test...868
Sensor Signal (Analog; Passive) - Test...873
Sensor Signal (PWM) - Test...881
Sensor Supply - Test...890
Solenoid Valve - Test...894
Solenoid Valve (Switch Controlled) - Test...901
Speed Sensor - Test...908
Switch Circuits - Test...912
Window Wiper Delay - Test...916
Wiring Harness (Open Circuit) - Test...921
Wiring Harness (Short Circuit) - Test...923
ECM Software - Install...925
ECM - Configure...927
ECM - Replace...928
Connector Contact Description...930
System Schematic...938
UENR7325 - Disassembly and Assembly (318D2 Excavator Engine Supplement)...941
System Pressure - Release...942
Battery - Remove and Install...945
Alternator - Remove and Install...949
Electric Starting Motor - Remove and Install...952
Fuel Priming Pump and Primary Filter (Water Separator) - Remove and Install...955
Refrigerant Condenser - Remove and Install...958
Radiator and Hydraulic Oil Cooler - Remove...961
Radiator and Hydraulic Oil Cooler - Install...965
Fuel Filter (Secondary) and Fuel Filter Base - Remove and Install...970
Hydraulic Oil Cooler - Remove and Install...973
Air Cleaner - Remove and Install...977
Aftercooler - Remove and Install...979
Muffler - Remove and Install...983
Turbocharger - Remove and Install...986
Water Temperature Regulator - Remove and Install...989
Coolant Tank (Expansion) - Remove and Install...992
Radiator - Remove and Install...995
Fan - Remove and Install...999
Water Pump - Remove and Install...1004
Engine Front Mount - Remove and Install...1009
Engine Rear Mount - Remove and Install...1011
Hood - Remove and Install...1014
Engine - Remove...1017
Engine - Install...1023
UENR7326 - Disassembly and Assembly (318D2 Excavator Machine Systems)...1028
Duo-Cone Conventional Seals - Install...1033
Bucket - Remove...1046
Bucket - Install...1055
Bucket Linkage - Remove...1061
Bucket Linkage Bearings and Seals - Remove...1065
Bucket Linkage Bearings and Seals - Install...1068
Bucket Linkage - Install...1073
Bucket Cylinder - Remove and Install...1078
Load Control Valve (Stick Cylinder) - Remove...1083
Load Control Valve (Stick Cylinder) - Install...1085
Stick Cylinder - Remove and Install...1087
Stick - Remove...1092
Stick Bearings and Seals - Remove...1096
Stick Bearings and Seals - Install...1099
Stick - Install...1103
Load Control Valve (Boom Cylinder) - Remove...1106
Load Control Valve (Boom Cylinder) - Install...1108
Boom Cylinder - Remove and Install...1110
Boom - Remove...1117
Boom Bearings and Seals - Remove and Install...1125
Boom - Install...1129
Window Wiper Motor - Remove and Install - Upper...1138
Window Wiper Motor - Remove and Install - Lower...1147
Cab - Remove...1153
Cab - Install...1158
Counterweight - Remove and Install...1163
Fuel Tank - Remove...1166
Fuel Tank - Install...1172
Check Valve (Cooler Bypass) - Remove...1177
Check Valve (Cooler Bypass) - Disassemble...1180
Check Valve (Cooler Bypass) - Assemble...1182
Check Valve (Cooler Bypass) - Install...1184
Handle (Joystick) - Remove and Install...1187
Hydraulic Lockout Control - Remove...1192
Hydraulic Lockout Control - Install...1193
Seat - Remove and Install...1194
Seat Suspension - Remove and Install...1196
Heating and Air Conditioning Unit - Remove...1205
Heating and Air Conditioning Unit - Install...1210
Blower Motor (Air Conditioner; Heater) - Remove and Install...1215
Actuator Motor (Air Distributor) - Remove and Install...1221
Heater Core - Remove...1228
Heater Core - Install...1232
Evaporator Coil - Remove...1236
Evaporator Coil - Install...1238
Control Module (Automatic Temperature Control Unit) - Remove and Install...1241
Track Carrier Roller - Remove...1245
Track Carrier Roller - Install...1248
Track Roller - Remove...1250
Track Roller - Install...1253
Track - Separate...1256
Track - Connect...1259
Front Idler and Recoil Spring - Remove...1262
Front Idler and Recoil Spring - Install...1265
Recoil Spring - Disassemble...1268
Recoil Spring - Assemble...1273
Hydraulic Track Adjusters - Remove...1280
Hydraulic Track Adjusters - Disassemble...1282
Hydraulic Track Adjusters - Assemble...1284
Hydraulic Track Adjusters - Install...1288
Sprocket - Remove and Install...1290
Counterbalance Valve (Travel) - Remove...1294
Counterbalance Valve (Travel) - Disassemble...1297
Counterbalance Valve (Travel) - Assemble...1301
Counterbalance Valve (Travel) - Install...1305
Travel Motor - Remove...1308
Travel Motor - Disassemble...1311
Travel Motor - Assemble...1319
Travel Motor - Install...1328
Final Drive - Remove...1331
Final Drive - Disassemble...1334
Final Drive - Assemble...1344
Final Drive - Install...1356
Swivel - Remove...1359
Swivel - Disassemble...1365
Swivel - Assemble...1367
Swivel - Install...1370
Swing Cushion Valve - Remove...1377
Swing Cushion Valve - Disassemble - Fine Swing Solenoid...1380
Swing Cushion Valve - Assemble - Fine Swing Solenoid...1383
Swing Cushion Valve - Install...1387
Swing Motor and Swing Drive - Remove...1389
Swing Motor - Disassemble...1396
Swing Motor - Assemble...1406
Swing Drive - Disassemble - Grease Filled...1415
Swing Drive - Assemble - Grease Filled...1421
Swing Motor and Swing Drive - Install...1429
Upper Frame and Undercarriage Frame - Separate...1436
Upper Frame and Undercarriage Frame - Connect...1443
Swing Gear and Bearing - Remove...1450
Swing Gear and Bearing - Install...1453
Oil Filter (Hydraulic; Return) - Remove...1459
Oil Filter (Hydraulic; Return) - Install...1462
Hydraulic Tank and Filter - Remove...1465
Hydraulic Tank and Filter - Install...1479
Gear Pump (Pilot) - Remove...1493
Gear Pump (Pilot) - Disassemble...1495
Gear Pump (Pilot) - Assemble...1502
Gear Pump (Pilot) - Install...1509
Main Hydraulic Pump - Remove...1510
Main Hydraulic Pump - Disassemble...1516
Main Hydraulic Pump - Assemble...1525
Main Hydraulic Pump - Install...1533
Pump Drive Coupling - Remove and Install...1539
Auxiliary Pilot Valve (Straight Travel) - Remove...1542
Auxiliary Pilot Valve (Straight Travel) - Disassemble...1546
Auxiliary Pilot Valve (Straight Travel) - Assemble...1548
Auxiliary Pilot Valve (Straight Travel) - Install...1555
Selector Valve (Alternate Pattern Control) - Remove...1558
Selector Valve (Alternate Pattern Control) - Install...1560
Pilot Valve (Joystick) - Remove...1562
Pilot Valve (Joystick) - Disassemble...1564
Pilot Valve (Joystick) - Assemble...1570
Pilot Valve (Joystick) - Install...1577
Control Manifold (Pilot Oil) - Remove...1579
Control Manifold (Pilot Oil) - Disassemble...1581
Control Manifold (Pilot Oil) - Assemble...1588
Control Manifold (Pilot Oil) - Install...1595
Pilot Valve (Travel) - Remove...1597
Pilot Valve (Travel) - Disassemble...1601
Pilot Valve (Travel) - Assemble...1610
Pilot Valve (Travel) - Install...1620
Accumulator - Remove and Install...1623
Main Control Valve - Remove...1626
Main Control Valve - Disassemble...1633
Main Control Valve - Assemble...1657
Main Control Valve - Install...1680
UENR8020 - Schematic (318D2 Excavator Electrical System (SGB10001-UP and HBP10001-UP))...1687
Feature...1687
Cover Page...1689
Information...0
Component Location...0
Volume 1 of 2 - Chassis Wiring...1690
Volume 2 of 2 - Engine Wiring...1691
Connector Location...0
Volume 1 of 2 - Chassis Wiring...1692
Volume 2 of 2 - Engine Wiring...1693
Schematics...0
Volume 1 of 2 - Chassis Wiring...1694
Volume 2 of 2 - Engine Wiring...1695
Machine Views...0
Volume 1 of 2 - Chassis Wiring...0
Back View Of Engine...1696
Disconnect Box...1697
Front View Of Engine...1698
Fuse Base...1699
LH View Of Cab...1700
LH View Of Chassis...1701
Main Control Valve...1702
Operator Seat...1703
Rear Machine View...1704
RH Console...1705
RH View Of Cab...1706
RH View Of Chassis...1707
Volume 2 of 2 - Engine Wiring...0
Engine C4.4...1708
Caterpillar 318D2 Excavator Repair Service Manual
