Caterpillar 312C Excavators Repair Service Manual

Model: 
Price: US$ 55.00

Complete service repair manual with Electrical Wiring Diagrams for Caterpillar 312C Excavators, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

Caterpillar 312C Excavators 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.

RENR5514 - Schematic (312C Excavator Hydraulic System).pdf
RENR5808 - Specifications (312C Excavator Machine System Specifications).pdf
RENR5814 - Schematic (312C Excavators Hydraulic System - Attachment Medium Pressure).pdf
RENR5815 - Schematic (312C Excavators Hydraulic System - Attachment One Pump with One Way Flow).pdf
RENR5816 - Schematic (312C Excavators Hydraulic System - Attachment Quick Couple).pdf
RENR5817 - Schematic (312C Excavators Hydraulic System - Attachment Boom Lowering Control Valve).pdf
RENR5818 - Schematic (312C Excavators Hydraulic System - Attachment Stick Lowering Control Valve).pdf
RENR5819 - Schematic (312C Excavators Hydraulic System - Attachment Two Pump Flow).pdf
RENR5823 - Schematic (312C Excavator Hydraulic System - Attachment Combined Flow).pdf
RENR5824 - Schematic (312C Excavators Hydraulic System - Attachment System G 14 Combined Function_ Joystick with Slide Control).pdf
RENR5827 - Schematic (312C Excavators Hydraulic System - Attachment VA Boom).pdf
RENR5828 - Schematic (312C Excavators Hydraulic System - Attachment VA Boom and Combined Flow).pdf
RENR5833 - Systems Operation (312C Excavator Hydraulic System).pdf
RENR5834 - Testing and Adjusting (312C Excavator Hydraulic System).pdf
RENR5836 - Schematic (Caterpillar 312C Excavator Electrical System).pdf
RENR6619 - Schematic (312C Excavators Hydraulic System - Attachment VA Boom With Stick Lowering Control Valve).pdf
RENR6634 - Systems Operation (312C and 315C Excavators Tool Control System).pdf
RENR6634 - Testing and Adjusting (312C and 315C Excavators Tool Control System).pdf
RENR6634 - Troubleshooting (312C and 315C Excavators Tool Control System).pdf
RENR7476 - Disassembly and Assembly (312C Excavator Machine Systems).pdf

PRODUCT DETAILS:
Total Pages: 1,932 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

TABLE OF CONTENTS
RENR5514 - Schematic (312C Excavator Hydraulic System)....3
  Main....4
    Features....4
    Cover Page....5
    Information....0
      Component Location....6
      Fluid Power Symbols....7
      Electrical Symbols....8
    Schematic....9
    Machine Views....0
      Machine Component Locations....10
      Main Control Valve....11
      Pilot Manifold....12
  Collage....13
RENR5808 - Specifications (312C Excavator Machine System Specifications)....21
  Piston Pump (Main)....23
  Control Valve (Main)....27
  Pump Lines (Main)....38
  Front Lines....40
  Boom Lines....42
  Boom Cylinder Lines - Right Hand....43
  Boom Cylinder Lines - Left Hand....44
  Boom Cylinder....45
  Boom....48
  Boom - Variable....50
  Stick Lines....53
  Stick Lines - Short....55
  Stick Cylinder....57
  Stick Cylinder Lines....59
  Stick - Medium....62
  Stick - Short....64
  Stick - Long....66
  Bucket Cylinder Lines....68
  Bucket Cylinder....70
  Bucket....76
  Bucket Adjuster....80
  Bucket Linkage....81
  Hydraulic Tank and Filter....83
  Return and Oil Filter Lines....86
  Check Valve (Hydraulic Oil Cooler Bypass)....88
  Gear Pump (Pilot)....89
  Pilot Valve (Oil Manifold)....90
  Pilot Valve (Travel)....92
  Accumulator (Pilot)....94
  Relief Valve (Pilot)....97
  Oil Filter (Return)....100
  Pilot Lines - Front....103
  Pilot Lines - Rear....105
  Shuttle Valve (Pilot Lines)....108
  Pilot Valve (Joystick)....111
  Pilot Valve (Auxiliary)....113
  Swing Motor....117
  Swing Motor Lines....119
  Swing Drive....120
  Swing Gear and Bearing....123
  Final Drives and Travel Motors....126
  Travel Motor Guard....132
  Handle Control (Travel)....133
  Travel Motor Lines....136
  Front Idler....139
  Recoil Spring....141
  Track Carrier Roller....143
  Track Roller (Single Flange)....145
  Track Roller Mounting....147
  Track Shoe Bolts....149
  Fuel Tank....150
  Upper Frame....152
  Auxiliary Hydraulic Lines - Long Stick....154
  Auxiliary Hydraulic Lines - Medium Stick....155
  Auxiliary Hydraulic Lines - Long Boom....156
  Auxiliary Hydraulic Lines - Short Stick....157
  Joystick Control....158
  Hydraulic Control (Auxiliary Pedal)....160
RENR5814 - Schematic (312C Excavators Hydraulic System - Attachment Medium Pressure)....161
RENR5815 - Schematic (312C Excavators Hydraulic System - Attachment One Pump with One Way Flow)....163
RENR5816 - Schematic (312C Excavators Hydraulic System - Attachment Quick Couple)....165
RENR5817 - Schematic (312C Excavators Hydraulic System - Attachment Boom Lowering Control Valve)....167
RENR5818 - Schematic (312C Excavators Hydraulic System - Attachment Stick Lowering Control Valve)....169
RENR5819 - Schematic (312C Excavators Hydraulic System - Attachment Two Pump Flow)....171
RENR5823 - Schematic (312C Excavator Hydraulic System - Attachment Combined Flow)....173
RENR5824 - Schematic (312C Excavators Hydraulic System - Attachment System G 14 Combined Function_ Joystick with Slide Control)....175
RENR5827 - Schematic (312C Excavators Hydraulic System - Attachment VA Boom)....177
RENR5828 - Schematic (312C Excavators Hydraulic System - Attachment VA Boom and Combined Flow)....179
RENR5833 - Systems Operation (312C Excavator Hydraulic System)....181
  General Information....183
  Main Hydraulic System....184
  Electronic Control System....189
  Pilot Hydraulic System....193
  Gear Pump (Pilot)....198
  Hydraulic Filter (Pilot)....199
  Relief Valve (Pilot)....201
  Accumulator (Pilot)....202
  Solenoid Valve (Hydraulic Activation)....205
  Pilot Valve (Joystick)....210
  Solenoid Valve (Proportional Reducing) - Power Shift System....215
  Main Hydraulic Pump....219
  Pump Control (Main Hydraulic) - Main Pump Regulator....223
  Main Control Valve....233
  Relief Valve (Main)....245
  Relief Valve (Line)....249
  Check Valve (Load)....253
  Negative Flow Control System....255
  Boom Hydraulic System....260
  Control Valve (Boom Lowering)....271
  Stick Hydraulic System....276
  Control Valve (Stick Lowering)....285
  Bucket Hydraulic System....290
  Cylinders (Boom; Stick and Bucket)....294
  Travel Hydraulic System....296
  Pilot Valve (Travel and Steering)....304
  Travel Motor....307
  Travel Parking Brake....311
  Displacement Change Valve....314
  Travel Counterbalance Valve....320
  Oil Makeup (Travel System)....327
  Control Valve (Straight Travel)....330
  Final Drive....335
  Swivel....340
  Swing Hydraulic System....343
  Swing Motor....351
  Pilot Valve (Swing Parking Brake)....355
  Relief Valve (Swing)....360
  Oil Makeup (Swing System)....363
  Relief Valve (Cushion Crossover) - Anti-Reaction Valve....365
  Swing Drive....376
  Blade Hydraulic System....381
  Return Hydraulic System....387
  Check Valve (Return Makeup) - Slow Return Check Valve....390
  Bypass Valve (Return) - Bypass Check Valve....392
  Hydraulic Tank and Filter....394
RENR5834 - Testing and Adjusting (312C Excavator Hydraulic System)....396
  General Testing and Adjusting Information....397
  Visual Inspection....398
  Hydraulic System Pressure - Release....399
  Main Hydraulic Pump Air - Purge....404
  Operational Checks....407
  Engine Performance - Test - Engine Speed....409
  Travel on Level Ground - Test - Optional Test....411
  Travel on Level Ground - Test....413
  Machine Drift on a Slope - Check....416
  Swing Speed and Overswing on Level Ground - Check....419
  Swing Speed and Swing Drift on a Slope - Check....422
  Cylinder Drift - Check - Loaded Bucket....426
  Cylinder Drift - Check - Empty Bucket....428
  Cylinder Speed - Check - Boom; Stick; and Bucket....433
  Relief Valve (Pilot) - Test and Adjust....437
  Accumulator (Pilot) - Test and Charge....439
  Relief Valve (Main) - Test and Adjust....445
  Relief Valve (Line) - Test and Adjust....451
  Control Valve (Boom Lowering) - Test and Adjust....459
  Control Valve (Stick Lowering) - Test and Adjust....463
  Swing Motor - Test - Measurement of Case Drain Oil....465
  Relief Valve (Swing) - Test and Adjust....468
  Travel Motor - Test - Measurement of Case Drain Oil....472
  Relief Valve (Crossover) - Test and Adjust....475
  Main Pump (Flow) - Test - Constant Horsepower Flow Control....481
  Pump Control (Output Flow) - Adjust....494
  Pump Control (Negative Flow) - Test....497
  Pump Control (Negative Flow) - Adjust....511
  Gear Pump (Pilot) - Test....514
  Specifications....519
RENR5836 - Schematic (Caterpillar 312C Excavator Electrical System)....524
  Main....525
  Collage....527
RENR6619 - Schematic (312C Excavators Hydraulic System - Attachment VA Boom With Stick Lowering Control Valve)....542
RENR6634 - Systems Operation (312C and 315C Excavators Tool Control System)....544
  General Information....545
  System G 1a One-Way_One Pump_Pedal_Joystick Switch....553
  System G 1b One-Way_Two Pump_Pedal_Joystick Switch....556
  System G 1c Combined Function_Pedal_Joystick Switch....559
  System G 2 Medium Pressure_Auxiliary Pump_Pedal....567
  System G 14 Combined Function_Joystick with Slide Control....570
  Hydraulic Control....579
  Implement Electronic Control Module (Tool)....581
  Switches....583
  Sensors....593
  Senders....596
  Solenoid Valves....598
  Relays....603
  Monitor Overview....604
RENR6634 - Testing and Adjusting (312C and 315C Excavators Tool Control System)....607
  Process for Setting Up the Work Tool....609
  Service Mode - Enter....610
  Machine Tool Control System - Select....615
  Work Tool - Select....619
  Work Tool Parameter - Program....625
  System G 1a Default Value of Work Tool Parameters....632
  System G 1a Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control....636
  System G 1a Relief Valve (Line) - Test and Adjust....658
  System G 1b Default Value of Work Tool Parameters....666
  System G 1b Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control....672
  System G 1b Relief Valve (Line) - Test and Adjust....694
  System G 1c Default Value of Work Tool Parameters....702
  System G 1c Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control....714
  System G 1c Relief Valve (Line) - Test and Adjust - One-Way System....742
  System G 2 Medium Pressure Hydraulic System - Test and Adjust....750
  System G14 Default Value of Work Tool Parameters....759
  System G14 Joystick Slide Control - Calibrate....785
  System G14 Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control....791
  System G14 Solenoid Valve (Proportional Reducing) - Calibrate - Attachment Control Valve....818
  System G14 Relief Valve (Line) - Test and Adjust - Number 1 Relief Valve and Number 2 Relief Valve....826
  System G14 Relief Valve (Line) - Test and Adjust - Auxiliary Control Valve (Medium Pressure)....836
  System G14 Relief Valve (Line) - Test and Adjust - Auxiliary Control Valve....839
  System G14 Relief Valve (Main) - Test and Adjust - Auxiliary Control Valve (Medium Pressure)....846
  Solenoid Valve (Proportional Reducing) - Output Test - Negative Flow Control....848
  Switch Status - Check....852
  Governor Actuator - Calibrate....856
  Electronic Control Module (ECM) - Flash Program....865
  Electronic Control Module (ECM) - Replace....866
  Connector Contact Identification....867
  System Schematic....875
RENR6634 - Troubleshooting (312C and 315C Excavators Tool Control System)....876
  General Information....879
  Service Tools....880
  Electrical Component and Connector Locations....885
  Harness and Wire Identification....886
  Using Service Mode....888
  Visual Inspection....896
  Initial Troubleshooting Procedure....897
  Diagnostic Code List....900
  Using the Operator Monitor to Determine Diagnostic Codes....903
  Using Caterpillar Electronic Technician to Determine Diagnostic Codes....906
  MID 06A - CID 0145 - FMI 06....908
  MID 06A - CID 1522 - FMI 03....911
  MID 06A - CID 1522 - FMI 05....914
  MID 06A - CID 1522 - FMI 06....918
  MID 06A - CID 1523 - FMI 03....921
  MID 06A - CID 1523 - FMI 05....924
  MID 06A - CID 1523 - FMI 06....927
  MID 06A - CID 1593 - FMI 03....930
  MID 06A - CID 1593 - FMI 05....933
  MID 06A - CID 1593 - FMI 06....936
  MID 06A - CID 1594 - FMI 03....939
  MID 06A - CID 1594 - FMI 05....942
  MID 06A - CID 1594 - FMI 06....945
  MID 06A - CID 1595 - FMI 03....948
  MID 06A - CID 1595 - FMI 05....951
  MID 06A - CID 1595 - FMI 06....954
  MID 06A - CID 1596 - FMI 03....957
  MID 06A - CID 1596 - FMI 05....960
  MID 06A - CID 1596 - FMI 06....963
  MID 06A - CID 1597 - FMI 03....966
  MID 06A - CID 1597 - FMI 05....969
  MID 06A - CID 1597 - FMI 06....972
  MID 06A - CID 1598 - FMI 03....975
  MID 06A - CID 1598 - FMI 05....978
  MID 06A - CID 1598 - FMI 06....981
  MID 06A - CID 1609 - FMI 03....984
  MID 06A - CID 1609 - FMI 04....989
  MID 06A - CID 1615 - FMI 03....991
  MID 06A - CID 1615 - FMI 05....994
  MID 06A - CID 1615 - FMI 06....997
  MID 06A - CID 1657 - FMI 03....1000
  MID 06A - CID 1657 - FMI 04....1005
  MID 06A - CID 1658 - FMI 03....1008
  MID 06A - CID 1658 - FMI 04....1013
  MID 06A - CID 1665 - FMI 03....1016
  MID 06A - CID 1665 - FMI 05....1019
  MID 06A - CID 1665 - FMI 06....1022
  MID 06A - CID 1666 - FMI 03....1025
  MID 06A - CID 1666 - FMI 05....1028
  MID 06A - CID 1666 - FMI 06....1031
  MID 069 - CID 1524 - FMI 03....1034
  MID 069 - CID 1524 - FMI 05....1037
  MID 069 - CID 1524 - FMI 06....1040
  MID 069 - CID 1590 - FMI 03....1043
  MID 069 - CID 1590 - FMI 05....1046
  MID 069 - CID 1590 - FMI 06....1049
  Solenoid Valve (Work Tool)....1052
  Pressure Switch (Work Tool)....1057
  Pressure Switch (Medium)....1066
  Rocker Switch (One-Way_Two-Way)....1075
  Rocker Switch (One Pump_Two Pump)....1082
RENR7476 - Disassembly and Assembly (312C Excavator Machine Systems)....1088
  Duo-Cone Conventional Seals - Install....1094
  Hydraulic System Pressure - Release....1107
  Blade Cylinder - Remove....1112
  Blade Cylinder - Install....1115
  Blade - Remove and Install....1118
  Bucket - Remove....1124
  Bucket - Install....1128
  Bucket Linkage - Remove....1134
  Bucket Linkage Bearings and Seals - Remove....1136
  Bucket Linkage Bearings and Seals - Install....1139
  Bucket Linkage - Install....1142
  Bucket Cylinder - Remove....1145
  Bucket Cylinder - Disassemble....1148
  Bucket Cylinder - Assemble....1150
  Bucket Cylinder - Install....1153
  Stick Cylinder - Remove....1157
  Stick Cylinder - Disassemble....1160
  Stick Cylinder - Assemble....1163
  Stick Cylinder - Install....1166
  Stick - Remove....1169
  Stick Bearings and Seals - Remove....1173
  Stick Bearings and Seals - Install....1175
  Stick - Install....1178
  Boom Cylinder - Remove....1181
  Boom Cylinder - Disassemble....1184
  Boom Cylinder - Assemble....1187
  Boom Cylinder - Install....1190
  Boom - Remove....1193
  Boom Bearings and Seals - Remove....1198
  Boom Bearings and Seals - Install....1200
  Boom - Install....1202
  Window Wiper Motor - Remove and Install - Upper....1206
  Window Wiper Motor - Remove and Install - Lower....1215
  Boom Lighting - Remove and Install....1221
  Counterweight - Remove and Install....1223
  Fuel Tank - Remove....1227
  Fuel Tank - Install....1234
  Check Valve (Cooler Bypass) - Remove....1240
  Check Valve (Cooler Bypass) - Disassemble....1244
  Check Valve (Cooler Bypass) - Assemble....1246
  Check Valve (Cooler Bypass) - Install....1248
  Handle (Joystick) - Remove and Install....1252
  Hydraulic Lockout Control - Remove....1257
  Hydraulic Lockout Control - Disassemble....1259
  Hydraulic Lockout Control - Assemble....1263
  Hydraulic Lockout Control - Install....1267
  Storage Box and Covers (Cab) - Remove and Install....1269
  Heating and Air Conditioning Unit - Remove....1274
  Heating and Air Conditioning Unit - Install....1283
  Blower Motor (Air Conditioner; Heater) - Remove....1291
  Actuator Motor (Air Distributor) - Remove and Install....1297
  Speed Control - Remove and Install - Blower Linear Control....1312
  Temperature Sensor (Ambient Air) - Remove and Install....1314
  Coolant Temperature Sensor - Remove and Install....1317
  Sensor (Sunlight) - Remove....1320
  Sensor (Sunlight) - Install....1322
  Temperature Sensor (Cab Air) - Remove and Install....1324
  Heater Core - Remove....1336
  Heater Core - Install....1340
  Evaporator Coil - Remove....1343
  Evaporator Coil - Install....1354
  Pressure Switch (Refrigerant Pressure Cutoff) - Remove....1365
  Pressure Switch (Refrigerant Pressure Cutoff) - Install....1368
  Control Panel (Air Conditioner) - Remove....1371
  Control Panel (Air Conditioner) - Install....1375
  Track Carrier Roller - Remove....1379
  Track Carrier Roller - Install....1382
  Track Roller - Remove....1384
  Track Roller - Install....1388
  Track - Separate....1391
  Track - Connect....1395
  Front Idler and Recoil Spring - Remove....1398
  Recoil Spring - Disassemble....1400
  Recoil Spring - Assemble....1405
  Front Idler and Recoil Spring - Install....1410
  Track Adjuster - Remove....1412
  Track Adjuster - Disassemble....1414
  Track Adjuster - Assemble....1416
  Track Adjuster - Install....1419
  Final Drive Sprocket - Remove and Install....1421
  Final Drive and Travel Motor - Remove....1425
  Final Drive and Travel Motor - Disassemble....1429
  Final Drive and Travel Motor - Assemble....1452
  Final Drive and Travel Motor - Install....1477
  Swivel - Remove....1480
  Swivel - Disassemble....1483
  Swivel - Assemble....1485
  Swivel - Install....1488
  Solenoid Valve (Rotate) - Remove....1491
  Solenoid Valve (Rotate) - Install....1496
  Solenoid Valve (Two-Way Flow and One Pump_Two Pump) - Remove....1500
  Solenoid Valve (Two-Way Flow and One Pump_Two Pump) - Install....1511
  Swing Motor - Remove....1520
  Swing Motor - Disassemble....1523
  Swing Motor - Assemble....1533
  Swing Motor - Install....1542
  Swing Drive - Remove....1545
  Swing Drive - Disassemble - Older Style....1548
  Swing Drive - Assemble - Older Style....1563
  Swing Drive - Install....1580
  Undercarriage Frame - Remove....1583
  Undercarriage Frame - Install....1590
  Swing Gear and Bearing - Remove and Install....1597
  Tank and Filter (Hydraulic) - Remove....1602
  Tank and Filter (Hydraulic) - Install....1611
  Accumulator - Remove and Install....1620
  Pressure Reducing Valve - Remove and Install....1623
  Gear Pump (Pilot) - Remove and Install....1629
  Blade Pump - Remove and Install....1633
  Pump Control - Remove....1636
  Pump Control - Disassemble....1639
  Pump Control - Assemble....1644
  Pump Control - Install....1650
  Main Hydraulic Pump - Remove....1653
  Main Hydraulic Pump - Disassemble....1660
  Main Hydraulic Pump - Assemble....1669
  Main Hydraulic Pump - Install....1686
  Auxiliary Pilot Valve (Straight Travel) - Remove....1693
  Auxiliary Pilot Valve (Straight Travel) - Disassemble....1696
  Auxiliary Pilot Valve (Straight Travel) - Assemble....1698
  Auxiliary Pilot Valve (Straight Travel) - Install....1700
  Alternate Pattern Control Valve - Remove....1702
  Alternate Pattern Control Valve - Disassemble....1705
  Alternate Pattern Control Valve - Assemble....1707
  Alternate Pattern Control Valve - Install....1710
  Pilot Valve (Joystick) - Remove....1711
  Pilot Valve (Joystick) - Disassemble....1716
  Pilot Valve (Joystick) - Assemble....1722
  Pilot Valve (Joystick) - Install....1729
  Pilot Valve (Implement) - Remove....1734
  Pilot Valve (Implement) - Disassemble....1737
  Pilot Valve (Implement) - Assemble....1741
  Pilot Valve (Implement) - Install....1745
  Pilot Valve (Oil Manifold) - Remove - NFC Limit Valve....1747
  Pilot Valve (Oil Manifold) - Remove....1751
  Pilot Valve (Oil Manifold) - Disassemble....1754
  Pilot Valve (Oil Manifold) - Disassemble - NFC Limit Valve....1760
  Pilot Valve (Oil Manifold) - Assemble....1763
  Pilot Valve (Oil Manifold) - Assemble - NFC Limit Valve....1769
  Pilot Valve (Oil Manifold) - Install....1772
  Pilot Valve (Oil Manifold) - Install - NFC Limit Valve....1775
  Pilot Valve (Travel) - Remove....1778
  Pilot Valve (Travel) - Disassemble....1783
  Pilot Valve (Travel) - Assemble....1794
  Pilot Valve (Travel) - Install....1806
  Shuttle Valve - Remove - Auxiliary Control....1810
  Shuttle Valve - Remove - Straight Travel....1813
  Shuttle Valve - Disassemble - Straight Travel....1816
  Shuttle Valve - Disassemble - Auxiliary Control....1818
  Shuttle Valve - Assemble - Auxiliary Control....1820
  Shuttle Valve - Assemble - Straight Travel....1822
  Shuttle Valve - Install - Straight Travel....1824
  Shuttle Valve - Install - Auxiliary Control....1827
  Main Control Valve - Remove....1829
  Main Control Valve - Disassemble....1835
  Main Control Valve - Assemble....1871
  Main Control Valve - Install....1904
 
Caterpillar 312C Excavators Repair Service Manual

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