Caterpillar 312D2 and 313D2 Excavators Workshop Service Repair Manual

Caterpillar 312D2 and 313D2 Excavators Workshop Service Repair manual with Electrical Wiring Diagrams (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnosis & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

This manual contains high quality images, circuit diagrams, instructions to help you to maintenance, troubleshoot, diagnose, and repair. This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.

UENR0195 - Disassembly and Assembly (312D2 and 313D2 Excavators Engine Supplement).pdf
UENR0196 - Disassembly and Assembly (312D2 and 313D2 Excavators Machine Systems).pdf
UENR3218 - Schematic (312D2 Excavator Hydraulic System - Attachment - Medium Pressure with F4 Valve).pdf
UENR3860 - Schematic (312D2 & 313D2 Excavator Hydraulic System (RNL1-UP LCY10001-UP RDE10001-UP MDW1-UP FAP1-UP EAB1-UP DGF1-UP ZAA1-UP WHJ1-UP TJY1-UP PLD1-UP).pdf
UENR5663 - Specifications (312D2 and 313D2 Excavators Machine System).pdf
UENR5664 - Systems Operation (312D2; 312D2 GC; 313D2 and 313D2 GC Excavator Machine Systems).pdf
UENR5666 - Systems Operation & Testing and Adjusting (312D2; 313D2 and 318D2 Excavators Tool Control System).pdf
UENR5883 - Schematic (312D2 Excavator Hydraulic System - Attachment - System 23).pdf
UENR5884 - Schematic (312D2 Excavator Hydraulic System - Attachment - Quick Coupler).pdf
UENR5948 - Schematic (312D2; 312D2 GC & 313D2 Excavator Electrical System) (GAJ1-UP ZAA1-UP BRW1-UP DGF1-UP EAB1-UP).pdf
UENR5949 - Troubleshooting (312D2; 312D2 GC; 313D2 and 313D2 GC Excavators Machine System).pdf

1,613 pages, high quality PDF

TABLE OF CONTENTS
UENR0195 - Disassembly and Assembly (312D2 and 313D2 Excavators Engine Supplement)...2
  System Pressure - Release...3
  Battery - Remove and Install...6
  Alternator - Remove and Install...10
  Electric Starting Motor - Remove and Install...13
  Fuel Priming Pump - Remove and Install...17
  Refrigerant Condenser - Remove and Install...20
  Radiator and Hydraulic Oil Cooler - Remove...23
  Radiator and Hydraulic Oil Cooler - Install...27
  Fuel Filter (Secondary) and Fuel Filter Base - Remove and Install...31
  Hydraulic Oil Cooler - Remove and Install...34
  Air Cleaner - Remove and Install...37
  Muffler - Remove and Install...39
  Turbocharger - Remove and Install...42
  Water Temperature Regulator - Remove and Install...45
  Coolant Tank (Expansion) - Remove and Install...50
  Radiator - Remove and Install...53
  Fan - Remove and Install...56
  Water Pump - Remove and Install...61
  Engine Front Mount - Remove and Install...64
  Engine Rear Mount - Remove and Install...71
  Hood - Remove and Install...75
  Engine - Remove...77
  Engine - Install...83
UENR0196 - Disassembly and Assembly (312D2 and 313D2 Excavators Machine Systems)...89
  Duo-Cone Conventional Seals - Install...94
  System Pressure - Release...107
  Blade Cylinder - Remove and Install...110
  Blade - Remove and Install...118
  Bucket - Remove...125
  Bucket - Install...128
  Bucket Linkage - Remove...132
  Bucket Linkage Bearings and Seals - Remove...135
  Bucket Linkage Bearings and Seals - Install...139
  Bucket Linkage - Install...144
  Bucket Cylinder - Remove and Install...149
  Quick Coupler - Remove and Install...155
  Stick Cylinder - Remove and Install...164
  Stick - Remove...171
  Stick - Install...176
  Boom Cylinder - Remove and Install...181
  Boom - Remove...189
  Boom - Install...197
  Window Wiper Motor - Remove and Install - Lower...204
  Cab - Remove...208
  Cab - Install...212
  Counterweight - Remove and Install...217
  Fuel Tank - Remove...219
  Fuel Tank - Install...225
  Check Valve (Cooler Bypass) - Remove...232
  Check Valve (Cooler Bypass) - Disassemble...236
  Check Valve (Cooler Bypass) - Assemble...238
  Check Valve (Cooler Bypass) - Install...240
  Hydraulic Lockout Control - Remove...244
  Hydraulic Lockout Control - Disassemble...246
  Hydraulic Lockout Control - Assemble...248
  Hydraulic Lockout Control - Install...251
  Seat - Remove and Install...253
  Seat Support - Remove and Install...255
  Seat Suspension - Remove and Install...258
  Storage Box and Covers (Cab) - Remove and Install...267
  Heating and Air Conditioning Unit - Remove...269
  Heating and Air Conditioning Unit - Install...273
  Blower Motor (Air Conditioner; Heater) - Remove and Install...276
  Receiver Dryer (Refrigerant) - Remove and Install...279
  Actuator Motor (Air Distributor) - Remove and Install...282
  Heater Core - Remove...287
  Heater Core - Install...291
  Evaporator Coil - Remove...295
  Evaporator Coil - Install...297
  Control Module (Automatic Temperature Control Unit) - Remove and Install...300
  Track Carrier Roller - Remove...304
  Track Carrier Roller - Install...306
  Track Roller - Remove...308
  Track Roller - Install...311
  Track - Separate...313
  Track - Connect...316
  Front Idler and Recoil Spring - Remove...319
  Recoil Spring - Disassemble...322
  Recoil Spring - Assemble...327
  Front Idler and Recoil Spring - Install...333
  Track Adjuster - Remove...336
  Track Adjuster - Install...338
  Sprocket - Remove and Install...342
  Final Drive and Travel Motor - Remove...345
  Final Drive and Travel Motor - Disassemble...349
  Final Drive and Travel Motor - Assemble...371
  Final Drive and Travel Motor - Install...395
  Swivel - Remove...398
  Swivel - Disassemble...403
  Swivel - Assemble...405
  Swivel - Install...409
  Swing Motor - Remove...413
  Swing Motor - Disassemble...416
  Swing Motor - Assemble...426
  Swing Motor - Install...435
  Swing Drive - Remove...437
  Swing Drive - Disassemble - Older Style...440
  Swing Drive - Assemble - Older Style...455
  Swing Drive - Install...472
  Undercarriage Frame - Remove...475
  Undercarriage Frame - Install...483
  Swing Gear and Bearing - Remove and Install...490
  Tank and Filter (Hydraulic) - Remove...495
  Tank and Filter (Hydraulic) - Install...501
  Accumulator - Remove and Install...506
  Shuttle Valve - Remove and Install - Pilot Oil; 1 Pump _ 2 Pump...509
  Pressure Reducing Valve (Implement and Swing Priority) - Remove...514
  Pressure Reducing Valve (Implement and Swing Priority) - Disassemble...516
  Pressure Reducing Valve (Implement and Swing Priority) - Assemble...520
  Pressure Reducing Valve (Implement and Swing Priority) - Install...524
  Solenoid Valve (Quick Coupler) - Remove and Install...526
  Solenoid Valve (Negative Flow Control; Proportional Reducing Valve) - Remove...530
  Solenoid Valve (Negative Flow Control; Proportional Reducing Valve) - Disassemble...533
  Solenoid Valve (Negative Flow Control; Proportional Reducing Valve) - Assemble...536
  Solenoid Valve (Negative Flow Control; Proportional Reducing Valve) - Install...539
  Solenoid Valve (Work Tool) - Remove and Install...541
  Solenoid Valve (Medium Pressure) - Remove and Install...546
  Solenoid Valve (Auxiliary Circuit) - Remove and Install - One Pump_Two Pump...551
  Solenoid Valve (Auxiliary Circuit) - Remove and Install - Combined Function - Left Hand...556
  Solenoid Valve (Auxiliary Circuit) - Remove and Install - Combined Function - Right Hand...559
  Relief Valve (Pilot) - Remove and Install...562
  Gear Pump (Pilot) - Remove and Install...566
  Blade Pump - Remove and Install...569
  Main Hydraulic Pump - Remove...572
  Main Hydraulic Pump - Disassemble...578
  Main Hydraulic Pump - Assemble...591
  Main Hydraulic Pump - Install...603
  Pump Drive Coupling - Remove and Install...609
  Pilot Valve (Third Pedal; Straight Travel) - Remove...612
  Pilot Valve (Third Pedal; Straight Travel) - Disassemble...616
  Pilot Valve (Third Pedal; Straight Travel) - Assemble...618
  Pilot Valve (Third Pedal; Straight Travel) - Install...620
  Pilot Valve (Alternate Pattern Control) - Remove and Install...623
  Pilot Valve (Joystick) - Remove...626
  Pilot Valve (Joystick) - Disassemble...628
  Pilot Valve (Joystick) - Assemble...635
  Pilot Valve (Joystick) - Install...642
  Pilot Valve (Implement) - Remove...644
  Pilot Valve (Implement) - Disassemble...649
  Pilot Valve (Implement) - Assemble...654
  Pilot Valve (Implement) - Install...659
  Control Manifold (Pilot Oil) - Remove - Hydraulic Lockout; Swing Brake; Travel...663
  Control Manifold (Pilot Oil) - Disassemble - Hydraulic Lockout; Swing Brake; Travel...665
  Control Manifold (Pilot Oil) - Assemble - Hydraulic Lockout; Swing Brake; Travel...669
  Control Manifold (Pilot Oil) - Install - Hydraulic Lockout; Swing Brake; Travel...672
  Pilot Valve (Travel) - Remove...673
  Pilot Valve (Travel) - Disassemble...678
  Pilot Valve (Travel) - Assemble...687
  Pilot Valve (Travel) - Install...697
  Shuttle Valve - Remove - Third Pedal; Straight Travel...701
  Shuttle Valve - Disassemble - Third Pedal; Straight Travel...704
  Shuttle Valve - Assemble - Third Pedal; Straight Travel...706
  Shuttle Valve - Install - Third Pedal; Straight Travel...708
  Main Control Valve - Remove...710
  Main Control Valve - Disassemble...718
  Main Control Valve - Assemble...742
  Main Control Valve - Install...759
  Control Valve (Blade) - Remove...766
  Control Valve (Blade) - Disassemble...768
  Control Valve (Blade) - Assemble...773
  Control Valve (Blade) - Install...778
UENR3218 - Schematic (312D2 Excavator Hydraulic System - Attachment - Medium Pressure with F4 Valve)...780
  Main...781
    Features...781
    Cover Page...782
    Information...0
      Component Location...783
      Tap Location...784
      Fluid Power Symbols...785
      Electrical Symbols...786
    Schematic...787
    Machine View...0
      Machine Component Locations...788
      Cab View Top...789
      Machine Control Valve...790
      Main Pump...791
      Medium Pressure...792
  Collage...793
UENR3860 - Schematic (312D2 & 313D2 Excavator Hydraulic System (RNL1-UP LCY10001-UP RDE10001-UP MDW1-UP FAP1-UP EAB1-UP DGF1-UP ZAA1-UP WHJ1-UP TJY1-UP PLD1-UP)...809
  Features...809
  Cover Page...811
  Information...0
    Component Location...812
    Tap Location...813
  Schematic...814
  Machine Views...0
    Cab View - Top...815
    Machine Rear Top View...816
    Main Control Valve...817
    Main Pump...818
UENR5663 - Specifications (312D2 and 313D2 Excavators Machine System)...819
  Air Cleaner...822
  Main Hydraulic Pump...825
  Pump Head (Main)...828
  Main Control Valve...832
  Pump Lines (Main) - Pump Supply...843
  Pump Coupling...844
  Relief Valve (Main)...845
  Front Lines...846
  Front Lines ...850
  Boom Lines...852
  Boom Cylinder Lines...853
  Boom Cylinder...857
  Handrail...859
  Solenoid Valve (Proportional Reducing)...860
  Boom - 4.7 m (15.42 ft)...861
  Stick - 2.5 m (8.20 ft)...863
  Stick Lines...865
  Stick Lines ...866
  Stick Cylinder...868
  Stick Cylinder Lines...870
  Bucket Cylinder Lines...872
  Bucket Cylinder...874
  Bucket Adjuster...876
  Bucket Linkage...878
  Hydraulic Tank Mounting...880
  Hydraulic Oil Cooler Lines Group...882
  Check Valve (Hydraulic Oil Cooler Bypass)...883
  Gear Pump - Pilot...884
  Pilot Oil Filter and Relief Valve...885
  Air Cleaner 01_10_2014...886
  Control Manifold (Pilot Oil)...890
  Pressure Reducing Valve (Boom and Stick Priority)...898
  Relief Valve (Pilot)...900
  Pilot Valve (Travel)...901
  Accumulator (Pilot)...903
  Oil Filter (Hydraulic) - Case Drain...904
  Oil Filter (Return)...906
  Pilot Lines - Joystick and Pedals...907
  Pilot Lines - Joystick and Main Control Valve...908
  Pilot Lines - Main Hydraulic Pump...910
  Pilot Lines...912
  Pilot Lines - Pump Control and Shuttle Valve...918
  Pilot Lines - Medium Pressure...920
  Shuttle Valve (Pilot Lines)...922
  Pilot Valve (Joystick)...923
  Hoist Solenoid Valve...925
  Hoist Solenoid Valve - Work Tool...927
  Swivel...929
  Swing Motor...931
  Fasteners...933
  Swing Drive...935
  Swing Gear and Bearing...938
  Sprocket...940
  Travel Motor...942
  Travel Motor Guard...945
  Handle Control (Travel)...946
  Travel Counterbalance Valve...947
  Travel Motor Lines...952
  Final Drive - Without Motor...954
  Front Idler...957
  Recoil Spring...959
  Track Adjuster and Recoil...961
  Track Carrier Roller...963
  Track Roller (Single Flange)...965
  Track...967
  Fuel Lines...972
  Fuel Tank...975
  Fuel Tank and Mounting...976
  Engine Mounting...978
  Governor Control...980
  Upper Frame...982
  Control Valve...985
  Shuttle Valve (Pump Flow Control)...988
  Counterweight...989
  Auxiliary Hydraulic Lines...991
  Pump Control Valve...1003
  Grease Lines...1005
  Heater and Air Conditioner Mounting...1007
  Air Conditioner Lines...1008
  Refrigerant Compressor...1013
  Electronic Control Mounting...1015
  Selector Valve (Control Pattern Change)...1017
  Operator Monitor...1019
  Joystick Control...1021
  Cab - Air Duct...1025
  Cab...1027
UENR5664 - Systems Operation (312D2; 312D2 GC; 313D2 and 313D2 GC Excavator Machine Systems)...1031
  General Information...1033
  Main Hydraulic System...1034
  Main Electrical System...1038
  Engine Control...1044
  Electrical Input Components...1052
  Electrical Output Components...1057
  Electronic Control Module...1060
  Related Components...1064
  Pilot System...1066
  Gear Pump (Pilot)...1071
  Hydraulic Filter (Pilot)...1072
  Relief Valve (Pilot)...1074
  Accumulator (Pilot)...1075
  Solenoid Valve (Hydraulic Lockout)...1078
  Pilot Valve (Joystick)...1083
  Solenoid Valve (Proportional Reducing) - Power Shift System...1087
  Main Hydraulic Pump...1091
  Pump Control (Main Hydraulic) - Main Pump Regulator...1095
  Main Control Valve...1104
  Negative Flow Control System...1113
  Relief Valve (Main)...1118
  Relief Valve (Line)...1122
  Check Valve (Load)...1126
  Boom System...1130
  Boom Drift Reduction Valve...1138
  Stick System...1142
  Stick Drift Reduction Valve...1150
  Bucket System...1155
  Cylinders (Boom; Stick and Bucket)...1158
  Swing System...1160
  Swing Motor...1165
  Pilot Valve (Swing Parking Brake)...1169
  Relief Valve (Swing)...1173
  Oil Makeup (Swing System)...1176
  Relief Valve (Cushion Crossover) - Anti-Reaction Valve...1178
  Swing Drive...1189
  Travel System...1194
  Pilot Valve (Travel)...1205
  Travel Motor...1208
  Travel Parking Brake...1212
  Displacement Change Valve...1215
  Travel Counterbalance Valve...1221
  Oil Makeup (Travel System)...1227
  Control Valve (Straight Travel)...1230
  Final Drive...1235
  Swivel...1239
  Return Hydraulic System...1241
  Check Valve (Return Makeup) - Slow Return Check Valve...1243
  Bypass Valve (Return) - Bypass Check Valve...1245
  Hydraulic Tank and Filter...1247
  Oil Filter (Return) - Case Drain Filter...1249
  Hydraulic Oil Cooler...1251
  Graphic Color Codes...1253
UENR5666 - Systems Operation & Testing and Adjusting (312D2; 313D2 and 318D2 Excavators Tool Control System)...1255
  General Information...1257
  System 1 One-Way_One Pump...1265
  System 23 Combined Function...1267
  Medium Pressure Hydraulic System - F4 Valve...1279
  Switches...1283
  Sensors...1293
  Solenoid Valves...1296
  Relays...1306
  Monitor Overview...1308
  Service Tools...1310
  System Identification...1314
  Service Mode - Enter...1322
  Process for Setting Up the Work Tool...1325
  Work Tool Parameter - Program...1341
  Work Tool - Select...1351
  System 1 Default Value of Work Tool Parameters...1355
  System 1 Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control...1358
  System 1 Relief Valve (Line) - Test and Adjust - Tool Relief Valve...1360
  System 23 Default Value of Work Tool Parameters...1368
  System 23 Joystick Slide Control - Calibrate...1378
  System 23 Solenoid Valve (Proportional Reducing) - Calibrate...1386
  System 23 Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control...1389
  System 23 Relief Valve (Line) - Test and Adjust - Attachment Control Valve...1401
  System 23 Relief Valve (Line) - Test and Adjust - Number 1 Relief Valve and Number 2 Relief Valve...1406
  Medium Pressure Default Value of Work Tool Parameters - F4 Valve...1409
  Medium Pressure Joystick Slide Control - Calibrate...1418
  Medium Pressure Solenoid Valve (Proportional Reducing) - Calibrate - F4 Valve...1426
  Medium Pressure Relief Valve (Line) - Test and Adjust - F4 Valve...1430
UENR5883 - Schematic (312D2 Excavator Hydraulic System - Attachment - System 23)...1434
  Main...1435
    Features...1435
    Cover page...1437
    Tables...0
      Components...1438
      Taps...1439
    Schematic...1440
    Machine Views...0
      Pump - Right Rear View...1441
      Main Control Valve...1442
      Machine Top View...1443
      Cab Top...1444
  Collage...1445
UENR5884 - Schematic (312D2 Excavator Hydraulic System - Attachment - Quick Coupler)...1460
  Main...1461
    Features...1461
    Cover page...1463
    Tables...0
      Components...1464
      Taps...1465
    Schematic...1466
    Machine Views...0
      Pump - Right Rear ...1467
      Main Control Valve...1468
      Top View...1469
      Cab Top...1470
  Collage...1471
UENR5948 - Schematic (312D2; 312D2 GC & 313D2 Excavator Electrical System) (GAJ1-UP ZAA1-UP BRW1-UP DGF1-UP EAB1-UP)...1486
  Features...1486
  Cover Page...1488
  Information...0
    Component Location...1489
    Connector Location...1490
  Schematic...1491
  Machine Views...0
    Engine Compartment View...1492
    Front Chassis View...1493
    LH Cab View...1494
    LH Rear Compartment View...1495
    Lower Cab Connection View...1496
    Product Link View...1497
    RH Cab View...1498
    RH Rear Compartment View...1499
UENR5949 - Troubleshooting (312D2; 312D2 GC; 313D2 and 313D2 GC Excavators Machine System)...1500
  General Information...1502
  Service Tools...1504
  Connector Locations...1507
  Diagnostic Capabilities...1511
  Diagnostic Trouble Codes...1515
  Determining Diagnostic Trouble Codes...1520
  Event Codes...1526
  Symptom Troubleshooting...1532
  Emerging Symptom Information...1534
  Alarm - Test...1535
  CAN Data Link - Test...1540
  Charging System - Test...1549
  Electrical Connector - Inspect...1550
  Electrical Power Supply - Test...1557
  Engine Speed Control - Test...1561
  Relay - Test...1566
  Sensor Signal (Analog; Active) - Test...1573
  Sensor Signal (Analog; Passive) - Test...1578
  Sensor Signal (PWM) - Test...1586
  Sensor Supply - Test...1595
  Solenoid Valve - Test...1599
  Solenoid Valve (Switch Controlled) - Test...1606
  Speed Sensor - Test...1613
  Switch Circuits - Test...1617
  Window Wiper Delay - Test...1621
  Wiring Harness (Open Circuit) - Test...1626
  Wiring Harness (Short Circuit) - Test...1628
  ECM Software - Install...1630
  ECM - Configure...1632
  ECM - Replace...1633
  Connector Contact Description...1635
  System Schematic...1643