Caterpillar 312E Excavator Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar 312E Excavator, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Caterpillar 312E 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.
PRODUCT DETAILS:
Total Pages: 2,166 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
KENR9850 - Disassembly and Assembly (312E Excavator Machine Systems).pdf
KENR9849 - Disassembly and Assembly (312E Excavator C4.4 Engine Supplement).pdf
KENR9648 - Systems Operation (312E, 314E, 316E and 318E Excavators Tool Control System).pdf
KENR9648 - Testing and Adjusting (312E, 314E, 316E and 318E Excavators Tool Control System).pdf
KENR9653 - Specifications (312E Excavator Machine System Specifications).pdf
KENR9654 - Systems Operation (312E Excavator Systems).pdf
KENR9656 - Schematic (312E Excavator Hydraulic System (Interactive) 349-1894-04).pdf
KENR8207 - Troubleshooting (312E, 316E and 318E Excavators).pdf
KENR9657 - Schematic (312E Excavator Electrical System (Interactive) (Cab) 364-0272-03 (Chassis) 360-6288-01 (Engine) 344-6309-01).pdf
M009730 - Schematic (312E,312F,313F,316E,316F,318E,318F,320E,320F,323E,323F,325F,335F,336F,340F,349F,352F,374F and 390F Excavator Air Conditioning Electrical System).pdf
UENR0439 - Schematic (312E Excavator Hydraulic System - Attachment - Blade (Load Sensing) (Interactive) 349-1926).pdf
KENR7953 - Schematic (312E Excavator Hydraulic System - Attachment - Medium Pressure (Load Sensing) (Interactive) 349-1917).pdf
KENR7955 - Schematic (312E Excavator Hydraulic System - Attachment - One-way _ One Or Two Pump - Electric Control (Interactive)).pdf
KENR7956 - Schematic (312E Excavator Hydraulic System - Attachment - Boom Lowering Control Valve (Interactive) 349-1933).pdf
KENR7957 - Schematic (312E Excavator Hydraulic System - Attachment - Stick Lowering Control Valve (Interactive) 349-1935).pdf
KENR7958 - Schematic (312E Excavator Hydraulic System - Attachment - Combined Function - Electric Control (Interactive) 349-1911).pdf
KENR7976 - Schematic (312E Excavator Hydraulic System - Attachment - Combined Function - Electric Control (Auxiliary Control) (Interactive) 349-1922).pdf
KENR7978 - Schematic (312E Excavator Hydraulic System - Attachment - Blade With Medium Pressure (NACD and EU) (Interactive) 349-1920).pdf
KENR7990 - Schematic (312E Excavator Hydraulic System - Attachment - Universal Quick Coupler (Interactive) 350-4248).pdf
MAIN SECTIONS
KENR7953 - Schematic (312E Excavator Hydraulic System - Attachment - Medium Pressure (Load Sensing) (Interactive) 349-1917).....1
Collage.....2
Main.....17
Features.....17
Cover Page.....18
Information.....0
Component Location.....19
Tap Location.....20
Fluid Power Symbols.....21
Electrical Symbols.....22
Schematic.....23
Machine Views.....0
Machine Component Locations.....24
Hydraulic Tank and Pump Circuit.....25
Main Control Valve.....26
Operator Control (Cab Removed).....27
Worktool Control.....28
KENR7955 - Schematic (312E Excavator Hydraulic System - Attachment - One-way _ One Or Two Pump - Electric Control (Interactive)).....29
Collage.....30
Main.....45
Features.....45
Cover Page.....46
Information.....0
Component Location.....47
Tap Location.....48
Fluid Power Symbols.....49
Electrical Symbols.....50
Schematic.....51
Machine Views.....0
Machine Component Locations.....52
Hydraulic Tank and Pump Circuit.....53
Main Control Valve.....54
Operator Control (Cab Removed).....55
Operator Platform (Bottom View).....56
Worktool Control.....57
KENR7956 - Schematic (312E Excavator Hydraulic System - Attachment - Boom Lowering Control Valve (Interactive) 349-1933).....58
Collage.....59
Main.....74
Features.....74
Cover Page.....75
Information.....0
Component Location.....76
Tap Location.....77
Fluid Power Symbols.....78
Electrical Symbols.....79
Schematic.....80
Machine Views.....0
Machine Component Locations.....81
Boom Cylinder.....82
Hydraulic Tank and Pump Circuit.....83
Main Control Valve.....84
Operator Control (Cab Removed).....85
KENR7957 - Schematic (312E Excavator Hydraulic System - Attachment - Stick Lowering Control Valve (Interactive) 349-1935).....86
Collage.....87
Main.....102
Features.....102
Cover Page.....103
Information.....0
Component Location.....104
Tap Location.....105
Fluid Power Symbols.....106
Electrical Symbols.....107
Schematic.....108
Machine Views.....0
Machine Component Locations.....109
Cylinders.....110
Hydraulic Tank and Pump Circuit.....111
Main Control Valve.....112
Operator Control (Cab Removed).....113
KENR7958 - Schematic (312E Excavator Hydraulic System - Attachment - Combined Function - Electric Control (Interactive) 349-1911).....114
Collage.....115
Main.....130
Features.....130
Cover Page.....131
Information.....0
Component Location.....132
Tap Location.....133
Fluid Power Symbols.....134
Electrical Symbols.....135
Schematic.....136
Machine Views.....0
Machine Component Locations.....137
Hydraulic Tank and Pump Circuit.....138
Main Control Valve.....139
Operator Control (Cab Removed).....140
Operator Platform (Bottom View).....141
Worktool Control.....142
KENR7976 - Schematic (312E Excavator Hydraulic System - Attachment - Combined Function - Electric Control (Auxiliary Control) (Interactive) 349-1922).....143
Collage.....144
Main.....159
Features.....159
Cover Page.....160
Information.....0
Component Location.....161
Tap Location.....162
Fluid Power Symbols.....163
Electrical Symbols.....164
Schematic.....165
Machine Views.....0
Machine Component Locations.....166
Hydraulic Tank and Pump Circuit.....167
Main Control Valve.....168
Operator Control (Cab Removed).....169
Operator Platform (Bottom View).....170
Worktool Control.....171
KENR7978 - Schematic (312E Excavator Hydraulic System - Attachment - Blade With Medium Pressure (NACD and EU) (Interactive) 349-1920).....172
Collage.....173
Main.....205
Feature.....205
Cover Page.....206
Information.....0
Component Location.....0
Volume 1 of 2 - Blade With Medium Pressure (NACD).....207
Volume 2 of 2 - Blade With Medium Pressure (EU).....208
Tap Location.....0
Volume 1 of 2 - Blade With Medium Pressure (NACD).....209
Volume 2 of 2 - Blade With Medium Pressure (EU).....210
Fluid Power Symbols.....211
Electrical Symbols.....212
Schematics.....0
Volume 1 of 2 - Blade With Medium Pressure (NACD).....213
Volume 2 of 2 - Blade With Medium Pressure (EU).....214
Machine Views.....0
Volume 1 of 2 - Blade With Medium Pressure (NACD).....0
Machine Component Locations.....215
Hydraulic Tank and Pump Circuit.....216
Main Control Valve.....217
Work tool control.....218
Volume 2 of 2 - Blade With Medium Pressure (EU).....0
Machine Component Locations.....219
Hydraulic Tank and Pump Circuit.....220
Main Control Valve.....221
Work Tool.....222
KENR7990 - Schematic (312E Excavator Hydraulic System - Attachment - Universal Quick Coupler (Interactive) 350-4248).....223
Collage.....224
Main.....239
Features.....239
Cover Page.....240
Information.....0
Component Location.....241
Tap Location.....242
Fluid Power Symbols.....243
Electrical Symbols.....244
Schematic.....245
Machine Views.....0
Machine Component Locations.....246
Hydraulic Tank and Pump Circuit.....247
Main Control Valve.....248
Operator Control (Cab Removed).....249
KENR8207 - Troubleshooting (312E, 316E and 318E Excavators).....250
Alarm - Test.....251
CAN Data Link - Test.....256
Connector Contact Description.....266
Connector Locations.....271
Determining Diagnostic Trouble Codes.....272
Diagnostic Capabilities.....281
Diagnostic Trouble Codes.....285
ECM - Configure.....295
ECM - Replace.....297
ECM Software - Install.....299
Electrical Connector - Inspect.....301
Electrical Power Supply - Test.....308
Emerging Symptom Information.....312
Event Codes.....315
General Information.....320
Indicator Lamp - Test.....322
Relay - Test.....326
Sensor Signal (Analog, Active) - Test.....331
Sensor Signal (Analog, Passive) - Test.....340
Sensor Signal (PWM) - Test.....344
Sensor Supply - Test.....356
Service Tools.....362
Solenoid Valve - Test.....365
Switch Circuits - Test.....375
Symptom Troubleshooting.....380
System Schematic.....382
Window Wiper Delay - Test.....386
Wiring Harness (Open Circuit) - Test.....391
Wiring Harness (Short Circuit) - Test.....392
KENR9648 - Systems Operation (312E, 314E, 316E and 318E Excavators Tool Control System).....394
Combined Function - Electric Control.....395
General Information.....409
Medium Pressure Hydraulic System - Load Sensing Valve.....424
Medium Pressure Hydraulic System - Open Center Valve.....427
One-Way_One or Two Pump - Electric Control.....430
Sensors.....437
Solenoid Valves.....440
Switches.....450
Work Tool Parameters - Control Functions.....458
KENR9648 - Testing and Adjusting (312E, 314E, 316E and 318E Excavators Tool Control System).....463
Combined Function - Electric Control Default Value of Work Tool Parameters.....464
Combined Function - Electric Control Parameter Adjustment.....481
Combined Function - Electric Control Parameter Setting.....487
Combined Function - Electric Control Relief Valve (Line) - Test and Adjust.....494
Control (Pedal) - Calibrate.....507
Control (Thumb Wheel) - Calibrate.....520
Medium Pressure Default Value of Work Tool Parameters.....533
Medium Pressure Relief Valve (Line) - Test and Adjust.....543
Medium Pressure Relief Valve (Main) - Test and Adjust.....553
One-Way_One or Two Pump - Electric Control Default Value of Work Tool Parameters.....569
One-Way_One or Two Pump - Electric Control Parameter Adjustment.....581
One-Way_One or Two Pump - Electric Control Parameter Setting.....585
One-Way_One or Two Pump - Electric Control Relief Valve (Line) - Test and Adjust - Tool Relief Valve.....590
One-Way_One or Two Pump - Electric Control Relief Valve (Line) - Test and Adjust.....599
Process for Setting Up the Work Tool.....612
Solenoid Valve (Proportional Reducing) - Calibrate - Attachment Valves.....645
Solenoid Valve (Proportional Reducing) - Calibrate - Flow Limit Valves.....668
Solenoid Valve (Proportional Reducing) - Calibrate - Variable Relief Valves.....692
System Identification.....713
Work Tool - Select.....728
Work Tool Parameter - Program.....732
KENR9653 - Specifications (312E Excavator Machine System Specifications).....752
Accumulator (Pilot).....757
Air Cleaner - Precleaner.....759
Air Cleaner.....760
Air Conditioner Lines.....761
Auxiliary Hydraulic Lines - Boom, High Pressure.....763
Auxiliary Hydraulic Lines - Boom, Medium Pressure.....764
Auxiliary Hydraulic Lines - Coupler Lines for Reach Boom.....766
Auxiliary Hydraulic Lines - Stick, High Pressure.....768
Auxiliary Hydraulic Lines.....769
Auxiliary Pump Drive and Mounting.....778
Blade Cylinder Lines.....780
Blade Cylinder.....782
Blade Lift Cylinder.....784
Blade Mounting.....791
Blower Motor.....793
Boom - 2.40 m (7.874 ft).....795
Boom - 4.65 m (15.256 ft).....797
Boom - VA Fore.....801
Boom Cylinder - VA.....803
Boom Cylinder Lines.....805
Boom Cylinder.....811
Boom Lines.....813
Bucket Adjuster.....819
Bucket Cylinder Lines.....820
Bucket Cylinder.....822
Bucket Linkage.....827
Bucket Mounting.....829
Cab - Air Duct.....831
Cab - Front Window Guard.....833
Cab - Protection Visor.....835
Cab - Window.....837
Cab.....838
Check Valve (Hydraulic Oil Cooler Bypass).....842
Cold Weather Battery and Mounting.....844
Control Manifold (Pilot Oil).....846
Control Valve (Auxiliary).....848
Control Valve and Mounting - Auxiliary.....850
Counterweight Mounting.....851
Counterweight.....852
Coupler Lines.....855
Cutting Edge - Blade.....860
Cylinder Guard.....861
Drain Line - Fast Fill.....863
Engine Mounting.....865
Excavator Pins (Boom and Boom Cylinder).....867
Final Drive - Without Motor.....869
Final Drive and Motor Fastener (Mounting).....872
Front Idler.....874
Front Lines - Quick Coupler.....876
Front Lines - Standard Track.....878
Front Lines.....879
Fuel Lines.....884
Fuel Tank and Mounting.....886
Fuel Tank.....890
Gear Pump - Auxiliary.....894
Gear Pump - Pilot.....895
Grease Lines.....896
Handle Control (Travel).....903
Handrail.....905
Heater and Air Conditioner Mounting.....906
Hydraulic Cylinder.....908
Hydraulic Oil Cooler Lines Group.....910
Hydraulic Oil Lines.....912
Hydraulic Pedal Control (Straight Travel).....914
Hydraulic Pedal Control (Travel).....916
Hydraulic Tank Mounting.....917
Hydraulic Tank and Filter.....918
Joystick Control.....920
Liquid Level Sensor (Water Separator).....923
Load Control Valve (Boom).....925
Load Control Valve (VA Boom).....927
Main Control Valve - Mounting.....929
Main Control Valve.....930
Main Hydraulic Pump.....940
Oil Filter (Hydraulic) - Case Drain.....943
Oil Filter (Return).....945
Operator Monitor.....947
Pilot Lines (Main Pump).....949
Pilot Lines - Swing Priority.....951
Pilot Lines.....953
Pilot Valve (Auxiliary).....965
Pilot Valve (Joystick).....968
Pilot Valve (Travel).....972
Pilot Valve - Blade Control.....974
Pilot Valve - Boom Load Control, LH.....976
Pilot Valve - Boom Load Control, RH.....978
Pilot Valve - Stick Load Control.....980
Pressure Reducing Valve (Boom Priority).....982
Pressure Sensor.....983
Pressure Switch (Refrigerant Pressure Cutoff).....984
Pump Control Valve.....985
Pump Coupling.....986
Pump Head (Main).....989
Pump Lines.....993
Quick Coupler (Hydraulic).....997
Quick Coupler.....999
Recoil Spring.....1001
Refrigerant Compressor Mounting.....1002
Refrigerant Compressor.....1003
Relief Valve (Crossover).....1005
Relief Valve (Line).....1008
Relief Valve (Main).....1010
Relief Valve (Pilot).....1013
Rollover Protective Structure (ROPS) Mounting.....1014
Shuttle Valve (Pilot Lines).....1015
Shuttle Valve (Pump Flow Control).....1019
Solenoid Valve (Proportional Reducing).....1021
Solenoid Valve (Quick Coupler).....1022
Solenoid Valve (System 16, 1-Way, 2-Pump).....1026
Solenoid Valve (Work Tool, 4-Function).....1027
Solenoid Valve - Straight Travel.....1029
Sprocket.....1030
Stick - 2.1 m (6.89 ft).....1031
Stick - 2.10 m (6.890 ft).....1033
Stick - 2.5 m (8.20 ft).....1035
Stick - 3.0 m (9.84 ft).....1037
Stick Cylinder Lines - Stick Lowering Control Valve.....1041
Stick Cylinder.....1045
Stick Lines - 2.10 m (6.890 ft).....1048
Stick Lines.....1050
Storage Box and Mounting.....1052
Swing Drive Mounting.....1053
Swing Drive.....1055
Swing Gear and Bearing.....1061
Swing Motor Lines.....1063
Swing Motor.....1064
Swivel - Cover.....1066
Swivel Lines.....1070
Swivel and Mounting.....1072
Swivel.....1074
Track Adjuster.....1075
Track Carrier Roller.....1077
Track Roller (Single Flange).....1079
Track Roller Mounting.....1081
Track.....1084
Travel Counterbalance Valve.....1086
Travel Motor Guard.....1091
Travel Motor Lines.....1092
Travel Motor.....1094
Window Wiper - Front, Upper.....1097
Window Wiper and Washer - Lower.....1099
Window Wiper and Washer.....1103
KENR9654 - Systems Operation (312E Excavator Systems).....1111
Accumulator (Pilot).....1113
Blade Hydraulic System.....1116
Boom Drift Reduction Valve.....1123
Boom System.....1127
Bucket System.....1137
Bypass Valve (Return) - Bypass Check Valve.....1140
Check Valve (Load).....1143
Check Valve (Return Makeup) - Slow Return Check Valve.....1147
Control Valve (Boom Lowering).....1150
Control Valve (Stick Lowering).....1162
Control Valve (Straight Travel).....1169
Cylinders (Boom, Stick and Bucket).....1174
Displacement Change Valve.....1176
Electrical Input Components.....1181
Electrical Output Components.....1196
Electronic Control Module.....1200
Engine Control.....1207
Final Drive.....1218
Gear Pump (Pilot).....1222
General Information.....1223
Graphic Color Codes.....1224
Hydraulic Filter (Pilot).....1226
Hydraulic Oil Cooler.....1228
Hydraulic Tank and Filter.....1230
Main Control Valve.....1232
Main Electrical System.....1245
Main Hydraulic Pump.....1251
Main Hydraulic System.....1256
Negative Flow Control System.....1260
Oil Filter (Return) - Case Drain Filter.....1265
Oil Makeup (Swing System).....1267
Oil Makeup (Travel System).....1273
Pilot System.....1276
Pilot Valve (Joystick).....1285
Pilot Valve (Swing Parking Brake).....1288
Pilot Valve (Travel).....1292
Pump Control (Main Hydraulic) - Main Pump Regulator.....1295
Related Components.....1310
Relief Valve (Cushion Crossover) - Anti-Reaction Valve.....1313
Relief Valve (Line).....1324
Relief Valve (Main).....1328
Relief Valve (Pilot).....1333
Relief Valve (Swing).....1335
Return Hydraulic System.....1342
Solenoid Valve (Fine Swing).....1348
Solenoid Valve (Hydraulic Lockout).....1353
Solenoid Valve (Proportional Reducing) - Power Shift System.....1359
Stick Drift Reduction Valve.....1365
Stick System.....1370
Swing Drive.....1380
Swing Motor.....1390
Swing System.....1394
Swivel.....1399
Travel Counterbalance Valve.....1405
Travel Motor.....1411
Travel Parking Brake.....1414
Travel System.....1416
KENR9656 - Schematic (312E Excavator Hydraulic System (Interactive) 349-1894-04).....1427
Collage.....1428
Main.....1444
Features.....1444
Cover Page.....1445
Information.....0
Component Table.....1446
Tap Table.....1447
Fluid Power Symbols.....1448
Electrical Symbols.....1449
Schematic.....1450
Machine Views.....0
Machine View.....1451
Operator View.....1452
Hydraulic Pump View.....1453
Control Valve View.....1454
KENR9657 - Schematic (312E Excavator Electrical System (Interactive) (Cab) 364-0272-03 (Chassis) 360-6288-01 (Engine) 344-6309-01).....1455
Collage.....1456
Main.....1492
Features.....1492
Cover Page.....1493
Information.....0
Component Location.....0
Volume 1 of 3 - Cab.....1494
Volume 2 of 3 - Engine.....1495
Volume 3 of 3 - Product Link and AccuGrade.....1496
Connector Location.....0
Volume 1 of 3 - Cab.....1497
Volume 2 of 3 - Engine.....1498
Volume 3 of 3 - Product Link and AccuGrade.....1499
Specifications and related manuals.....0
Volume 1 of 3 - Cab.....1500
Volume 2 of 3 - Engine.....1501
Volume 3 of 3 - Product Link and AccuGrade.....1502
Standard Electrical.....1503
Schematics.....0
Volume 1 of 3 - Cab.....1504
Volume 2 of 3 - Engine.....1505
Volume 3 of 3 - Product Link and AccuGrade.....1506
Machine Views.....0
Cab Rear.....1507
Accugrade and Product Link.....1508
Battery Compartment.....1509
Boom.....1510
Boom Rear.....1511
Cab Front.....1512
Cab Right Side.....1513
Engine CEM.....1514
Engine Components.....1515
Engine Front.....1516
Engine Rear.....1517
Engine Top View.....1518
Rear Cab.....1519
Rear Chassis.....1520
Refueling Pump.....1521
KENR9849 - Disassembly and Assembly (312E Excavator C4.4 Engine Supplement).....1522
Aftercooler - Remove and Install.....1524
Air Cleaner - Remove and Install.....1526
Alternator - Remove and Install.....1528
Battery - Remove and Install.....1530
Belt Tightener - Remove and Install.....1532
Clean Emissions Module - Remove and Install.....1534
Cooling System Package (Radiator, Hydraulic Oil Cooler) - Remove and Install.....1537
Crankshaft Pulley - Remove and Install.....1545
Electric Starting Motor - Remove and Install.....1549
Engine - Remove and Install.....1551
Engine Electronic Control - Remove and Install.....1562
Engine Front Mount - Remove and Install.....1564
Engine Oil Cooler - Remove and Install.....1568
Engine Oil Filter and Oil Filter Base - Remove and Install.....1571
Engine Oil Pump - Remove and Install.....1572
Engine Rear Mount - Remove and Install.....1577
Exhaust Elbow - Remove and Install.....1581
Fan - Remove and Install.....1583
Fan Drive - Remove and Install.....1587
Fuel Cooler - Remove and Install.....1588
Fuel Filter and Base - Remove and Install.....1590
Fuel Injection Pump - Install.....1592
Fuel Injection Pump - Remove.....1597
Fuel Manifold - Remove and Install.....1601
Hood - Remove and Install.....1605
Oil Pan - Remove and Install - Cast Iron Oil Pan.....1607
Refrigerant Compressor - Remove and Install.....1615
Refrigerant Condenser - Remove and Install.....1617
Refrigerant Receiver-Dryer - Remove and Install.....1620
Soot Antenna - Remove and Install.....1623
Soot Sensor - Remove and Install.....1625
System Pressure - Release.....1627
Temperature Sensor (DPF) - Remove and Install.....1628
Turbocharger - Remove and Install.....1631
Water Pump - Remove and Install.....1636
Water Separator and Fuel Priming Pump - Remove and Install.....1639
Water Temperature Regulator - Remove and Install.....1641
KENR9850 - Disassembly and Assembly (312E Excavator Machine Systems).....1644
Accumulator - Remove and Install.....1647
Actuator Motor (Air Distributor) - Remove and Install.....1650
Auxiliary Pilot Valve (Straight Travel) - Remove and Install.....1652
Boom - Remove and Install.....1660
Boom Bearings and Seals - Remove and Install.....1674
Boom Cylinder - Remove and Install.....1678
Bucket - Remove and Install.....1686
Bucket Cylinder - Remove and Install.....1693
Bucket Linkage - Remove and Install.....1698
Bucket Linkage Bearings and Seals - Remove and Install.....1706
Cab - Remove and Install.....1713
Check Valve (Cooler Bypass) - Remove and Install.....1721
Control Manifold (Pilot Oil) - Assemble - Hydraulic Lockout, Swing Brake, Travel.....1723
Control Manifold (Pilot Oil) - Disassemble - Hydraulic Lockout, Swing Brake, Travel.....1726
Control Manifold (Pilot Oil) - Remove and Install - Hydraulic Lockout, Swing Brake, Travel.....1730
Control Module (Automatic Temperature Control Unit) - Remove and Install.....1732
Counterweight - Remove and Install.....1735
Duo-Cone Conventional Seals - Install.....1739
Final Drive and Travel Motor - Assemble.....1752
Final Drive and Travel Motor - Disassemble.....1777
Final Drive and Travel Motor - Remove and Install.....1801
Front Idler, Recoil Spring and Hydraulic Track Adjuster - Install.....1805
Front Idler, Recoil Spring and Hydraulic Track Adjuster - Remove.....1810
Fuel Tank - Remove and Install.....1813
Gear Pump (Auxiliary) - Remove and Install.....1817
Gear Pump (Pilot) - Remove and Install.....1818
Heating and Air Conditioning Unit - Remove and Install.....1819
Hydraulic Lockout Control - Remove and Install.....1829
Hydraulic Tank - Remove and Install.....1831
Hydraulic Track Adjusters - Assemble.....1838
Hydraulic Track Adjusters - Disassemble.....1842
Main Control Valve - Assemble.....1844
Main Control Valve - Disassemble.....1868
Main Control Valve - Remove and Install.....1892
Main Hydraulic Pump - Assemble.....1897
Main Hydraulic Pump - Disassemble.....1912
Main Hydraulic Pump - Remove and Install.....1926
Pilot Valve (Joystick) - Remove and Install.....1933
Pilot Valve (Travel) - Assemble.....1938
Pilot Valve (Travel) - Disassemble.....1949
Pilot Valve (Travel) - Remove and Install.....1959
Pump Drive Coupling - Remove and Install.....1964
Quick Coupler - Remove and Install.....1967
Recoil Spring - Assemble.....1976
Recoil Spring - Disassemble.....1982
Refrigerant Receiver-Dryer - Remove and Install.....1988
Relief Valve (Pilot) - Remove and Install.....1991
Seat - Remove and Install.....1993
Seat Support - Remove and Install.....1995
Seat Suspension - Remove and Install.....1997
Selector Valve (Alternate Pattern Control) - Remove and Install.....1999
Shuttle Valve - Remove and Install.....2001
Solenoid Valve (Negative Flow Control, Proportional Reducing Valve) - Assemble.....2004
Solenoid Valve (Negative Flow Control, Proportional Reducing Valve) - Disassemble.....2008
Solenoid Valve (Negative Flow Control, Proportional Reducing Valve) - Remove and Install.....2011
Sprocket - Remove and Install.....2014
Stick - Remove and Install.....2017
Stick Bearings and Seals - Remove and Install.....2024
Stick Cylinder - Remove and Install.....2030
Storage Box and Covers (Cab) - Remove and Install.....2037
Swing Drive - Assemble.....2039
Swing Drive - Disassemble.....2046
Swing Drive - Install.....2052
Swing Drive - Remove.....2055
Swing Gear and Bearing - Remove and Install.....2058
Swing Motor - Assemble.....2060
Swing Motor - Disassemble.....2070
Swing Motor - Remove and Install.....2080
Swivel - Assemble.....2084
Swivel - Disassemble.....2088
Swivel - Remove and Install.....2090
System Pressure - Release.....2098
Track - Connect.....2099
Track - Separate.....2102
Track Carrier Roller - Install.....2105
Track Carrier Roller - Remove.....2107
Track Roller - Install.....2109
Track Roller - Remove.....2112
Upper Frame and Undercarriage Frame - Connect.....2115
Upper Frame and Undercarriage Frame - Separate.....2123
Window Wiper Motor - Remove and Install.....2132
M009730 - Schematic (312E,312F,313F,316E,316F,318E,318F,320E,320F,323E,323F,325F,335F,336F,340F,349F,352F,374F and 390F Excavator Air Conditioning Electrical System).....2138
UENR0439 - Schematic (312E Excavator Hydraulic System - Attachment - Blade (Load Sensing) (Interactive) 349-1926).....2140
Collage.....2141
Main.....2156
Features.....2156
Cover Page.....2157
Information.....0
Component Location.....2158
Tap Location.....2159
Fluid Power Symbols.....2160
Electrical Symbols.....2161
Schematic.....2162
Machine Views.....0
Machine Component Locations.....2163
Hydraulic Tank and Pump Circuit.....2164
Main Control Valve.....2165
Worktool Control.....2166
Caterpillar 312E Excavator Repair Service Manual
