Caterpillar 320B Series Excavators Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar Excavators 320B, 320B FM LL, 320B L, 320B LL, 320B LN, 320B LU, 320B N, 320B S, 320B U, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Caterpillar Excavators 320B, 320B FM LL, 320B L, 320B LL, 320B LN, 320B LU, 320B N, 320B S, 320B U 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.
EXCAVATOR
Model Prefix
320B EXCAVATOR 1CS
320B EXCAVATOR 1XS
320B EXCAVATOR 3MR
320B EXCAVATOR 3YZ
320B EXCAVATOR 4FS
320B EXCAVATOR 4NR
320B EXCAVATOR 4XW
320B EXCAVATOR 5BR
320B EXCAVATOR 8ES
320B EXCAVATOR 9KR
320B FM LL EXCAVATOR 6LS
320B FM LL EXCAVATOR 9JS
320B L EXCAVATOR 1ES
320B L EXCAVATOR 2WZ
320B L EXCAVATOR 4MR
320B L EXCAVATOR 5CS
320B L EXCAVATOR 5GW
320B L EXCAVATOR 6CR
320B L EXCAVATOR 6LW
320B L EXCAVATOR 7JR
320B L EXCAVATOR 9CS
320B L EXCAVATOR 9WS
320B L EXCAVATOR AED
320B LL EXCAVATOR 6LS
320B LL EXCAVATOR 9JS
320B LU EXCAVATOR 7ZZ
320B LU EXCAVATOR BBG
320B N EXCAVATOR 2AS
320B N EXCAVATOR 4NR
320B S EXCAVATOR 5MS
320B U EXCAVATOR 8GZ
320B U EXCAVATOR BAN
PRODUCT DETAILS:
Total Pages: 1,714 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
SENR9257 - Disassembly & Assembly (320B, 320B L,320B LN, 320B N & 320B S Excavators Machine System).pdf
SENR9243 - Disassembly & Assembly (3066 Engine Supplement For 320B Excavator Family).pdf
SENR5556 - Disassembly & Assembly (Supplement for 320 & 320 L Excavators (3066 Engine)).pdf
SENR9244 - Specifications (320B Excavator Machine System Specifications).pdf
SENR9246 - Systems Operation (320B Excavator Hydraulic System).pdf
RENR1046 - Systems Operation (320B LL Forest Machine Excavator Hydraulic System).pdf
SENR9247 - Testing & Adjusting (320B Excavator Hydraulic System).pdf
RENR1001 - Schematic (320B Excavators Hydraulic System - Attachment One Way_One PU).pdf
RENR1992 - Systems Operation (320B, 322B, 325B & 330B Excavators Attachment Hydraulic Systems).pdf
SENR9255 - Schematic (320B Excavator Hydraulic System - Attachment - Common Piping (Interactive) 118-4192).pdf
RENR2728 - Disassembly & Assembly (320B Excavator with Field Installed Combined:Rotate Function).pdf
SENR9250 - Schematic (320B Excavator Hydraulic System - Attachment - One way_One Pump Flow (Interactive) 118-4190).pdf
SENR9249 - Schematic (320B Excavator Hydraulic System (Interactive) 115-9034-10).pdf
RENR3726 - Schematic (320B Excavator Hydraulic System).pdf
SENR9256 - Schematic (320B Excavator Hydraulic System - Attachment - Two Pump Flow (Interactive) 123-2583).pdf
RENR1006 - Schematic (320B Excavator Hydraulic System - Attachment - Common Piping_Third Pedal (Interactive) 118-4192).pdf
SENR9258 - Schematic (320B & 320B L Excavator Electrical System (Interactive) 116-0201-09).pdf
RENR1992 - Testing & Adjusting (320B, 322B, 325B & 330B Excavators Attachment Hydraulic Systems).pdf
RENR1004 - Schematic (320B & 320B L Excavators Hydraulic System Single Flow Control (Attachment)).pdf
RENR1003 - Schematic (320B & 320B L Excavators Hydraulic System Double Action 1 Pump (Attachment) with 3rd Pedal Straight Travel).pdf
RENR1000 - Schematic (320B & 320B L Excavators Hydraulic System (Attachment) Third Pedal Straight Travel).pdf
SENR9253 - Schematic (320B & 320B L Excavators Hydraulic System Boom Lowering Control (Attachment)).pdf
SENR9252 - Schematic 320B & 320B L Excavators Hydraulic System Double Action 1 Pump (Attachment).pdf
SENR9251 - Schematic (320B & 320B L Excavators Hydraulic System Two Speed Hammer (Attachment)).pdf
RENR3277 - Testing & Adjusting (320B, 322B & 325B Excavators Long Reach Front Attachment Hydraulic System).pdf
RENR1005 - Schematic (320B & 320B L Excavators Hydraulic System Common Flow Cont.).pdf
MAIN SECTIONS
RENR1000 - Schematic (320B & 320B L Excavators Hydraulic System (Attachment) Third Pedal Straight Travel).......3
Collage.......4
Main.......19
RENR1001 - Schematic (320B Excavators Hydraulic System - Attachment One Way_One PU).......20
Main.......21
RENR1003 - Schematic (320B & 320B L Excavators Hydraulic System Double Action 1 Pump (Attachment) with 3rd Pedal Straight Travel).......23
Collage.......24
Main.......39
RENR1004 - Schematic (320B & 320B L Excavators Hydraulic System Single Flow Control (Attachment)).......40
Collage.......41
Main.......56
RENR1005 - Schematic (320B & 320B L Excavators Hydraulic System Common Flow Cont.).......57
Collage 1.......58
Collage 2.......62
Collage 3.......64
Main 1.......76
Main 2.......77
Main 3.......78
RENR1006 - Schematic (320B Excavator Hydraulic System - Attachment - Common Piping_Third Pedal (Interactive) 118-4192).......79
Main.......80
Features.......80
Cover Page.......81
Information.......0
Component Location.......82
Fluid Power Symbols.......83
Electrical Symbols.......84
Schematic.......85
Machine View.......0
Machine Component Locations.......86
RENR1046 - Systems Operation (320B LL Forest Machine Excavator Hydraulic System).......87
RENR1992 - Systems Operation (320B, 322B, 325B & 330B Excavators Attachment Hydraulic Systems).......218
Combined Function Hydraulic Operation.......219
Control Valve (Boom Lowering).......229
Control Valve (Straight Travel).......235
One-Way Hydraulic Flow Operation.......240
Two Pump Operation.......246
Two-Way Hydraulic Flow Operation.......247
RENR1992 - Testing & Adjusting (320B, 322B, 325B & 330B Excavators Attachment Hydraulic Systems).......253
Boom Lowering Control Valve - Test and Adjust.......254
General Testing and Adjusting Information.......265
Hydraulic System Pressure - Release.......266
Operational Checks.......269
Pressure Specifications.......271
Relief Valve (One Way Flow Line) - Test and Adjust.......272
Visual Inspection.......278
RENR2728 - Disassembly & Assembly (320B Excavator with Field Installed Combined:Rotate Function).......279
Auxiliary Hydraulic Joystick.......280
Combined Function_2 Pump Flow (Auxiliary Hydraulic Service Manual Refer to RENR1065).......283
Hydraulic System.......299
Introduction.......306
Welding Guidelines.......309
RENR3277 - Testing & Adjusting (320B, 322B & 325B Excavators Long Reach Front Attachment Hydraulic System).......312
Check Valve (Boom Drift Reduction) - Test and Adjust.......313
Convert from Long Reach Configuration to Standard Reach Configuration.......315
General Testing and Adjusting Information.......317
Operational Checks.......318
Pressure Specifications.......320
RENR3726 - Schematic (320B Excavator Hydraulic System).......322
Collage 1.......323
Collage 2.......338
Main 1.......344
Main 2.......345
SENR5556 - Disassembly & Assembly (Supplement for 320 & 320 L Excavators (3066 Engine)).......346
Air Cleaner.......348
Air Conditioning Compressor.......349
Air Heater.......351
Alternator.......353
Conditioner Condenser.......355
Conditioner Dryer.......357
Crankshaft Front Oil Seal.......359
Crankshaft Pulley.......361
Crankshaft Rear Oil Seal.......363
Engine Oil Cooler.......366
Engine Oil Filter & Oil Filter Base.......368
Engine Supports (Front).......371
Engine Supports (Rear).......373
Engine.......375
Fan.......384
Flywheel & Ring Gear.......385
Flywheel Ring Gear.......387
Fuel Filter & Fuel Filter Base.......389
Fuel Injection Lines.......391
Fuel Injection Pump & Governor.......393
Fuel Priming Pump.......396
Governor Control Motor.......397
Hood.......404
Main Hydraulic Pump.......406
Muffler.......410
Oil Cooler.......411
Radiator.......413
Shutoff Solenoid.......417
Starter.......418
Turbocharger.......419
V-Belts.......423
Water Pump.......425
Water Separator.......429
Water Temperature Regulator.......430
SENR9243 - Disassembly & Assembly (3066 Engine Supplement For 320B Excavator Family).......432
Air Cleaner.......433
Air Conditioner Dryer.......435
Alternator.......437
Electric Starting Motor.......440
Engine & Main Hydraulic Pump.......442
Engine Oil Filter & Oil Filter Base.......460
Fan & Fan Guard Assembly.......463
Fuel Filter & Fuel Filter Base.......466
Fuel Priming Pump.......468
Hood Assembly.......469
Hydraulic Oil Cooler.......471
Muffler.......475
Radiator.......476
Refrigerant Compressor.......482
Refrigerant Condenser.......485
Turbocharger.......487
V-Belts.......492
Water Pump.......494
Water Separator.......499
Water Temperature Regulator.......501
SENR9244 - Specifications (320B Excavator Machine System Specifications).......504
Accumulator (Pilot).......508
Boom - 5200 mm (204.7 inch).......509
Boom - 5675 mm (223.4 inch).......511
Boom - 8850 mm (348.4 inch).......513
Boom Cylinder.......515
Boom.......520
Bucket Adjuster.......522
Bucket Cylinder.......525
Bucket Linkage.......531
Bucket.......541
Cab Mounting.......547
Check Valve (Boom Drift Reduction).......549
Check Valve (Lowering Control).......551
Check Valve (Stick Drift Reduction).......555
Control Manifold (Pilot Oil).......562
Control Valve (Main).......564
Final Drive.......574
Flow Control Valve.......577
Front Idler.......578
Fuel Tank - Additional Tank.......581
Fuel Tank.......584
Governor Control.......587
Handhold.......591
Hydraulic Tank and Filter.......593
Lines (Auxiliary Hydraulic) - Long Boom.......596
Lines (Auxiliary Hydraulic) - Stick 1900 mm (74.8 inch).......598
Lines (Auxiliary Hydraulic) - Stick 2400 mm (94.5 inch).......599
Lines (Auxiliary Hydraulic) - Stick 2500 mm (98.4 inch).......601
Lines (Auxiliary Hydraulic) - Stick 2900 mm (114.1 inch).......603
Lines (Boom Lowering Valve).......605
Lines (Boom).......607
Lines (Front) - Common Piping.......612
Lines (Front) - Double Action.......615
Lines (Front) - Single Action.......617
Lines (Front) - Two Pump Flow.......619
Lines (Front).......622
Lines (Pilot) - Boom Lowering Valve.......628
Lines (Pilot) - Cab Riser.......630
Lines (Pilot) - Common Piping and Two Pump Circuit.......634
Lines (Pilot) - Double Action.......639
Lines (Pilot) - Flow Control and Common Piping.......641
Lines (Pilot) - Flow Control and Single Action.......643
Lines (Pilot) - Four Ways.......645
Lines (Pilot) - Front.......648
Lines (Pilot) - Grapple.......657
Lines (Pilot) - Harvester.......659
Lines (Pilot) - Rear.......661
Lines (Pilot) - Single Action.......679
Lines (Pilot) - Third Pedal.......682
Lines (Pilot) - Two Pump Flow.......685
Lines (Pilot) - Two Ways.......688
Lines (Pump).......691
Lines (Return and Filter) - Lowering Control.......695
Lines (Return and Filter).......697
Lines (Stick Cylinder).......702
Lines (Stick).......706
Lines (Swing Motor).......713
Lines (Travel Motor).......714
Main Hydraulic Pump.......720
Pilot Control Valve (Auxiliary).......724
Pilot Valve (Joystick).......726
Pilot Valve (Travel).......728
Recoil Spring.......730
Relief Valve (Line) - Front Lines.......733
Relief Valve (One-Way Hydraulic Flow) - Front Lines.......735
Remote Fuel Control - Shutoff and Drain.......737
Selector Valve (Hydraulic Lockout).......740
Shuttle Valve (One-Way Hydraulic Flow) - Front Lines.......742
Solenoid Valve - Anti-Reaction Valve with Fine Swing Solenoid Valve.......743
Stick - 1900 mm (74.8 inch).......745
Stick - 2400 mm (94.5 inch).......752
Stick - 2500 mm (98.4 inch).......754
Stick - 2900 mm (114.2 inch).......759
Stick - 2920 mm (115 inch).......762
Stick - 3860 mm (152 inch).......764
Stick - 6280 mm (247.2 inch).......767
Stick - Auxiliary Hydraulics 1900 mm (74.8 inch).......769
Stick - Auxiliary Hydraulics 2400 mm (94.5 inch).......772
Stick Cylinder.......775
Stick Lines - Log Loader.......783
Swing Drive.......785
Swing Gear and Bearing.......788
Swing Motor.......790
Track Carrier Roller.......792
Track Roller (Single Flange).......794
Track Roller Mounting.......797
Track Shoe Bolts.......799
Travel Counterbalance Valve.......800
Travel Motor Guard.......802
Travel Motor.......804
Upper Frame.......811
SENR9246 - Systems Operation (320B Excavator Hydraulic System).......815
Accumulator (Pilot).......817
Boom Cylinder.......820
Boom Drift Reduction Valve - Boom.......823
Boom Hydraulic System.......827
Bucket Cylinder.......838
Bucket Hydraulic System.......841
Bypass Valve (Return).......842
Check Valve (Load).......845
Combined Function Hydraulic Operation.......847
Control Valve (Straight Travel).......861
Final Drive.......870
Gear Pump (Pilot).......874
General Information.......875
Hydraulic Filter (Pilot).......876
Hydraulic Tank and Filter.......878
Main Control Valve.......882
Main Hydraulic Pump.......910
Pilot Hydraulic System.......915
Pilot Valve (Implement and Swing).......926
Pilot Valve (Swing Parking Brake).......930
Pilot Valve (Travel).......939
Pump Control (Main Hydraulic).......942
Pump Hydraulic System.......957
Reducing Valve (Shock).......963
Relief Valve (Crossover).......966
Relief Valve (Cushion Crossover).......971
Relief Valve (Line).......985
Relief Valve (Main).......989
Relief Valve (Pilot).......993
Return Hydraulic System.......996
Selector Valve (Hydraulic Activation).......1002
Solenoid Valve (Proportional Reducing).......1006
Stick Cylinder.......1011
Stick Hydraulic System.......1014
Swing Drive.......1027
Swing Hydraulic System.......1032
Swing Motor.......1037
Swivel.......1041
Travel Counterbalance Valve.......1044
Travel Hydraulic System.......1048
Travel Motor.......1056
SENR9247 - Testing & Adjusting (320B Excavator Hydraulic System).......1067
Cylinder Drift - Check - Empty Bucket.......1068
Cylinder Operating Speed.......1070
Gear Pump (Pilot) - Test.......1083
General Testing and Adjusting Information.......1090
Hydraulic System Pressure - Release.......1091
Machine Drift on a Slope - Check.......1094
Operational Checks.......1096
Piston Pump (Main) - Test - Constant Horsepower Flow Control.......1098
Pressure Specifications.......1112
Pump Control (Negative Flow) - Adjust.......1123
Pump Control (Negative Flow) - Test.......1125
Pump Control (Output Flow) - Adjust.......1138
Relief Valve (Crossover) - Test and Adjust.......1141
Relief Valve (Line) - Test and Adjust.......1147
Relief Valve (Main) - Test and Adjust.......1165
Relief Valve (Pilot) - Test and Adjust.......1167
Relief Valve (Swing) - Test and Adjust.......1169
Swing Bearing Movement - Measure.......1176
Swing Motor - Test - Measurement of Case Drain Oil.......1182
Swing Speed and Overswing on Level Ground - Check.......1185
Swing Speed and Swing Drift on a Slope - Check.......1188
Travel Motor - Test - Measurement of Case Drain Oil.......1192
Travel on Level Ground - Test - Optional Test.......1195
Travel on Level Ground - Test.......1197
Visual Inspection.......1200
SENR9249 - Schematic (320B Excavator Hydraulic System (Interactive) 115-9034-10).......1201
Collage.......1202
Main.......1217
Features.......1217
Cover Page.......1218
Information.......0
Component Location.......1219
Tap Location.......1220
Fluid Power Symbols.......1221
Electrical Symbols.......1222
Schematic.......1223
Machine Views.......0
Machine Component Locations.......1224
Main Control Valve.......1225
Pump GP - Main Hydraulic.......1226
Pilot Manifold.......1227
SENR9250 - Schematic (320B Excavator Hydraulic System - Attachment - One way_One Pump Flow (Interactive) 118-4190).......1228
collage.......1229
main.......1237
Features.......1237
Cover Page.......1238
Information.......0
Component Location.......1239
Fluid Power Symbols.......1240
Electrical Symbols.......1241
Schematic.......1242
Machine View.......0
Machine Component Locations.......1243
SENR9251 - Schematic (320B & 320B L Excavators Hydraulic System Two Speed Hammer (Attachment)).......1244
Collage.......1245
Main.......1257
SENR9252 - Schematic 320B & 320B L Excavators Hydraulic System Double Action 1 Pump (Attachment).......1258
Collage.......1259
Main.......1271
SENR9253 - Schematic (320B & 320B L Excavators Hydraulic System Boom Lowering Control (Attachment)).......1272
Collage.......1273
Main.......1285
SENR9255 - Schematic (320B Excavator Hydraulic System - Attachment - Common Piping (Interactive) 118-4192).......1286
Collage.......1287
Main.......1295
Features.......1295
Cover Page.......1296
Information.......0
Component Location.......1297
Fluid Power Symbols.......1298
Electrical Symbols.......1299
Schematic.......1300
Machine View.......0
Machine Component Locations.......1301
SENR9256 - Schematic (320B Excavator Hydraulic System - Attachment - Two Pump Flow (Interactive) 123-2583).......1302
Main.......1303
Features.......1303
Cover Page.......1304
Information.......0
Component Location.......1305
Fluid Power Symbols.......1306
Electrical Symbols.......1307
Schematic.......1308
Machine View.......0
Machine Component Locations.......1309
SENR9257 - Disassembly & Assembly (320B, 320B L,320B LN, 320B N & 320B S Excavators Machine System).......1310
Auxiliary Fuel Refueling Pump.......1312
Auxiliary Pilot Control Valve (Straight Travel).......1316
Boom Cylinders.......1322
Boom Drift Reduction Valve.......1331
Boom.......1339
Bucket Cylinder.......1350
Bucket Linkage Group.......1357
Bucket.......1365
Cab.......1369
Cooler Bypass Check Valve.......1376
Counterweight.......1379
Duo-Cone Seals.......1381
Final Drive Sprockets.......1389
Final Drives.......1391
Front Idlers, Recoil Springs & Hydraulic Track Adjusters.......1413
Front Idlers.......1415
Fuel Tank.......1420
Heating & Air Conditioning Unit.......1427
Hydraulic Accumulator.......1447
Hydraulic Activation Control.......1449
Hydraulic Oil Filter.......1454
Hydraulic Oil Tank.......1460
Hydraulic Track Adjusters.......1470
Main Control Valve.......1473
Main Hydraulic Pump & Pump Drive Coupling.......1514
Main Hydraulic Pump.......1525
Pilot Control Valves (Implement).......1552
Pilot Control Valves (Travel).......1560
Pilot Relief Valve.......1565
Proportional Reducing Valve.......1568
Recoil Springs.......1570
Seat Assembly.......1575
Shock Reducing Valve.......1576
Shuttle Valve.......1580
Slow Return Check Valve.......1583
Solenoid Valves.......1586
Stick Cylinder.......1589
Stick Drift Reduction Valve.......1595
Stick.......1603
Swing Drive.......1610
Swing Gear & Bearing.......1624
Swing Motor.......1627
Swivel Joint.......1648
Track Assemblies.......1653
Track Carrier Rollers.......1657
Track Rollers.......1665
Travel Brake Valves.......1671
Travel Motors.......1676
Undercarriage Frame Assembly.......1691
SENR9258 - Schematic (320B & 320B L Excavator Electrical System (Interactive) 116-0201-09).......1702
Main.......1703
Features.......1703
Cover Page.......1704
Information.......0
Component Location.......0
Page 1 of 2.......1705
Page 2 of 2.......1706
Connector Location.......1707
CID/MID/FMI.......1708
Specifications And Related Manuals.......1709
Wire Description.......0
Page 1 of 2.......1710
Page 2 of 2.......1711
Standard Electrical.......1712
Schematic.......1713
Machine View.......0
Machine Harness Connector And Component Locations.......1714
Caterpillar 320B Series Excavators Repair Service Manual
