Caterpillar M318 and M320 Excavators Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar M318 and M320 Excavators, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Caterpillar M318 and M320 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.
RENR1168 - Schematic (M312; M315 and M318 Excavators Hydraulic System (Attachment) Auxitiary Circuit).pdf
RENR1169 - Schematic (M312; M315 & M318 Excavators Hydraulic System - Attachment - Zeppelin Metal Work 123-3229).pdf
RENR1182 - Testing and Adjusting (M318 Excavator Hydraulic System).pdf
RENR1185 - Schematic (M312; M315 and M318 Wheeled Excavators Hydraulic System).pdf
RENR1186 - Schematic (M312; M315 and M318 Excavators Hydraulic System - Attachment Auxiliary Circuit).pdf
RENR1187 - Schematic (M312; M315 and M318 Excavators Equipped with ZMW Hydraulics (Attachment)).pdf
RENR4024 - Disassembly and Assembly (M318 and M320 Excavators Machine Systems Supplement).pdf
RENR4034 - Schematic (M318 and M320 Excavator Electrical System (For Serial Numbers 8AL2265-UP; 6ES243-UP; 6WL469-UP)).pdf
SENR1695 - Schematic (M318 Wheeled Excavator Electrical System).pdf
SENR4615 - Specifications (SUPPLEMENT FOR - 3114; 3116 AND 3126 ENGINES FOR CATERPILLAR).pdf
SENR4615 - Systems Operation (SUPPLEMENT FOR - 3114; 3116 AND 3126 ENGINES FOR CATERPILLAR).pdf
SENR4615 - Testing and Adjusting (SUPPLEMENT FOR - 3114; 3116 AND 3126 ENGINES FOR CATERPILLAR).pdf
SENR6257 - Disassembly and Assembly (SUPPLEMENT FOR M318 EXCAVATOR - 3116 ENGINE).pdf
SENR6258 - Disassembly and Assembly (M318 and M320 Excavators Power Train).pdf
SENR6259 - Specifications (M318 and M320 Excavators Machine System Specifications).pdf
SENR6260 - Systems Operation (M312; M315; M318 and M320 Excavators Hydraulic System).pdf
SENR6263 - Schematic (M318 Wheeled Excavators Hydraulic System).pdf
SENR6264 - Disassembly and Assembly (M318 EXCAVATOR MACHINE SYSTEMS).pdf
SENR6265 - Systems Operation (M318 and M320 Excavators Machine Electronic Control System).pdf
SENR6265 - Testing and Adjusting (M318 and M320 Excavators Machine Electronic Control System).pdf
PRODUCT DETAILS:
Total Pages: 2,213 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
RENR1168 - Schematic (M312; M315 and M318 Excavators Hydraulic System (Attachment) Auxitiary Circuit)....1
Main....2
Collage....4
RENR1169 - Schematic (M312; M315 & M318 Excavators Hydraulic System - Attachment - Zeppelin Metal Work 123-3229)....19
Main....20
Collage....22
RENR1182 - Testing and Adjusting (M318 Excavator Hydraulic System)....37
General Testing and Adjusting Information....39
Visual Inspection....42
Hydraulic System Pressure - Release....43
Main Hydraulic Pump Air - Purge....48
Swing Pump Air - Purge....50
Main Control Valve Air - Purge....52
Brake System Air - Purge....55
Axle Stabilizer Cylinder Air - Purge....57
Accumulator - Test and Charge....59
Operational Checks....66
Engine Performance - Test....80
Engine Speed - Test and Adjust - No Load....85
Engine Load Speed - Adjust....92
Engine Load Speed - Adjust - Optional....97
Relief Valve (Medium Pressure Function) - Test and Adjust....104
Required Tools....112
Attachment Priority Valve - Test and Adjust - If Equipped....116
Relief Valve (Pilot) - Test and Adjust....124
Relief Valve (Pilot) - Test and Adjust ....127
Main Control Valve - Adjust - Implement Control Spools....129
Check Valve (Stick Drift Reduction) - Test and Adjust....133
Relief Valve (Signal Limiter) - Test and Adjust....137
Relief Valve (Signal Limiter Heavy Lift) - Test and Adjust....144
Relief Valve (Main) - Test and Adjust....153
Relief Valve (Line) - Test and Adjust - Travel Motor....157
Relief Valve (Line) - Test and Adjust - Hydraulic Hammer....161
Relief Valve (Line) - Test and Adjust - Implement....165
M318 Excavator 6ES00001-UP (MACHINE) POWERED BY 3116 Engine(SEBP2614 - 38) - Documentation....168
Relief Valve (Line) - Test and Adjust - Travel Motor ....172
Control Valve (Boom Lowering) - Test and Adjust....176
Control Valve (Boom Lowering) - Test and Adjust - VA Boom....184
Pressure Switch (Overload Warning) - Test and Adjust....191
Control Valve (Stick Lowering) - Test and Adjust....197
Margin Pressure and Low Pressure Standby - Test and Adjust....200
Main Pump (Proportional Reducing Valve) - Test and Adjust - No Load....203
Main Pump Control (Load Sensing Signal Orifice) - Adjust....209
Main Pump (Destroke Pressure) - Test and Adjust....211
Swing Motor - Test - Measurement of Case Drain Oil....219
Swing Pump Control (Throttle Spool Piston) - Adjust....225
Swing Pump Control (Mechanical Zero) - Test and Adjust....228
Swing Pump Control (High Pressure Cutoff) - Test and Adjust....231
Swing Brake Pressure - Test....234
Solenoid Valve (Swing Pump Proportional Relief) - Test and Adjust....238
Relief Valve (Swing Charge Pressure) - Test and Adjust....244
Relief Valve (Swing Pump) - Test and Adjust....248
Travel Motor (Stall Pressure) - Test and Adjust....252
Travel Motor (Upstroke Pressure) - Test and Adjust....254
Travel Motor (Drive Shaft Speed) - Test and Adjust....261
Transmission (Shift Pressure) - Test....276
Transmission (Parking Brake Reserve Pressure) - Test and Adjust....278
Axle (Steering Alignment) - Test and Adjust....282
Axle (Steering Positive Stop) - Test and Adjust....285
Accumulator (Wheel Brake Charge Pressure) - Test and Adjust....287
Brake Disc Wear - Measure....291
Brake Control Valve (Service) - Adjust....294
Relief Valve (Steering) - Test and Adjust....300
Generator Priority Valve - Adjust....303
Main Pump (Flow) - Test....311
Specifications....334
RENR1185 - Schematic (M312; M315 and M318 Wheeled Excavators Hydraulic System)....360
Main....361
Collage....363
RENR1186 - Schematic (M312; M315 and M318 Excavators Hydraulic System - Attachment Auxiliary Circuit)....378
Main....379
Collage....381
RENR1187 - Schematic (M312; M315 and M318 Excavators Equipped with ZMW Hydraulics (Attachment))....396
Main....397
Collage....399
RENR4024 - Disassembly and Assembly (M318 and M320 Excavators Machine Systems Supplement)....429
System Pressure - Release....430
Swing Motor - Remove....432
Swing Motor - Disassemble....435
Swing Motor - Assemble....446
Swing Motor - Install....462
Swing Drive - Remove....465
Swing Drive - Disassemble....469
Swing Drive - Assemble....479
Swing Drive - Install....491
RENR4034 - Schematic (M318 and M320 Excavator Electrical System (For Serial Numbers 8AL2265-UP; 6ES243-UP; 6WL469-UP))....495
Main....496
Features....496
Cover Page....497
Information....0
Component Location....0
Page 1 of 2....498
Page 2 of 2....499
Connector Location....500
CID/MID/FMI....501
Specifications and Related manuals....502
Standard Electrical....503
Schematic....504
Machine View....0
Machine Harness Connector and Component Locations....505
Collage....506
SENR1695 - Schematic (M318 Wheeled Excavator Electrical System)....518
Main....519
Collage....521
SENR4615 - Specifications (SUPPLEMENT FOR - 3114; 3116 AND 3126 ENGINES FOR CATERPILLAR)....536
Introduction....537
Primary Fuel Filter....538
Fuel Pressure Switch....539
Oil Pan Group....541
Oil Pressure Switch....543
Transmission Oil Temperature Switch....546
Water Temperature Regulator....547
Coolant Temperature Switch....549
Aftercooler Group....552
Air Cleaner Group....553
Air Lines Group....555
Blower Fan Group....556
Exhaust Extension Group....560
Muffler Group....561
Fan Drive....565
Pump Drive Group....566
Flexible Coupling Group....568
Torque Converter Group....569
Alternators And Regulators....571
Starting Motor....581
Alternator Mounting Group....588
Service Meter....589
Speed Sensor (Magnetic)....590
SENR4615 - Systems Operation (SUPPLEMENT FOR - 3114; 3116 AND 3126 ENGINES FOR CATERPILLAR)....591
SENR4615 - Testing and Adjusting (SUPPLEMENT FOR - 3114; 3116 AND 3126 ENGINES FOR CATERPILLAR)....592
SENR6257 - Disassembly and Assembly (SUPPLEMENT FOR M318 EXCAVATOR - 3116 ENGINE)....600
Muffler Group SMCS - 1062-010....601
Air Cleaner Group SMCS - 1051-010....603
Turbocharger SMCS - 1052-010....606
Crankcase Breather Group SMCS - 1317-010....609
Electric Starting Motor SMCS - 1453-010....611
Alternator SMCS - 1405-010....612
Ether Starting Aid SMCS - 1456-010....614
Shutoff Solenoid SMCS - 1259-010....615
Fuel Priming Pump SMCS - 1258-010....617
Primary Fuel Filter; Fuel Priming Pump & Fuel Filter Base SMCS - 1258; 1260; 1262-010....618
Secondary Fuel Filter & Base SMCS - 1261; 1262-010....620
Electric Fuel Refueling Pump SMCS - 1256-010....621
Engine Oil Filter SMCS - 1318-010....623
Sound Suppression Cover (Valve Cover) SMCS - 1107-010; 1801....624
Sound Suppression Cover (Oil Pan) SMCS - 1302; 1801....625
Engine Enclosure Group SMCS - 7263-010....626
Fan Guards SMCS - 1360-010....636
Fan Assembly SMCS - 1356-010....638
V-Belts (Alternator_Fan) SMCS - 1357; 1405-010....640
V-Belt (Air Conditioning Compressor) SMCS - 1357; 1802-010....641
V-Belt (Water Pump Drive) SMCS - 1357; 1361-010....643
Fan Drive SMCS - 1359-010; 1359-017....644
Engine & Main Hydraulic Pump SMCS - 1000; 5070-010....648
Radiator & Hydraulic Oil Cooler SMCS - 1353; 1374-010....663
SENR6258 - Disassembly and Assembly (M318 and M320 Excavators Power Train)....676
Travel Brake Valve - Remove....678
Travel Brake Valve - Install....681
Travel Motor - Remove....683
Travel Motor - Disassemble....691
Travel Motor - Assemble....722
Travel Motor - Install....760
Final Drive Carriers; Hubs and Brakes - Disassemble - Front Axle....768
Final Drive Carriers; Hubs and Brakes - Disassemble - Rear Axle....780
Final Drive Carriers; Hubs and Brakes - Assemble - Front Axle....793
Final Drive Carriers; Hubs and Brakes - Assemble - Rear Axle....817
Housing and Bearings (Steer Axle) - Remove....837
Housing and Bearings (Steer Axle) - Install....844
Brake Cylinder - Remove - Rear Axle....852
Brake Cylinder - Install - Rear Axle....854
Brake Shoes - Remove - Rear Axle....856
Brake Shoes - Install - Rear Axle....859
Steering Cylinder - Disassemble....862
Steering Cylinder - Assemble....866
Drive Shaft - Remove and Install - Rear....872
Drive Shaft - Remove and Install - Front....875
Drive Shaft Carrier - Remove....878
Drive Shaft Carrier - Disassemble....880
Drive Shaft Carrier - Assemble....884
Drive Shaft Carrier - Install....891
Transmission and Rear Differential - Remove....893
Transmission and Rear Differential - Install....897
Downshift Inhibitor - Remove....900
Downshift Inhibitor - Disassemble....902
Downshift Inhibitor - Assemble....910
Downshift Inhibitor - Install....918
Transmission - Disassemble....920
Transmission - Assemble....949
Differential - Disassemble - Front Axle....988
Differential - Disassemble - Rear....999
Differential - Assemble - Front Axle....1011
Differential - Assemble - Rear....1030
Tire and Rim - Remove - Rear....1054
Tire and Rim - Remove - Front....1059
Tire and Rim - Install - Rear....1064
Tire and Rim - Install - Front....1068
Tie Rods - Remove....1073
Tie Rods - Install....1077
Axle - Remove - Rear....1080
Axle - Remove - Front....1083
Axle - Install - Rear....1086
Axle - Install - Front....1090
Swing Motor - Remove....1093
Swing Motor - Disassemble....1096
Swing Motor - Assemble....1107
Swing Motor - Install....1123
Swing Drive - Remove....1126
Swing Drive - Disassemble....1130
Swing Drive - Assemble....1140
Swing Drive - Install....1149
SENR6259 - Specifications (M318 and M320 Excavators Machine System Specifications)....1153
Control Valve (Main)....1155
Flow Control Valve....1159
Boom Cylinder....1160
Boom Cylinder ....1162
Lines (Boom Lowering Valve) - VA....1166
Lines (Boom Lowering Valve) - One Piece....1167
Lines (Boom Lowering Valve) - VA Boom....1168
Control Valve (Boom Lowering)....1169
Boom - Fore Boom....1173
Boom - Stub Boom....1175
Boom - One Piece....1177
Stick - 1800 mm (70.9 inch)....1179
Stick - 4000 mm (157.5 inch)....1181
Stick - 2800 mm (110.2 inch)....1183
Stick - 2400 mm (94.5 inch)....1185
Stick Cylinder....1187
Check Valve (Stick Drift Reduction)....1191
Control Valve (Stick Lowering)....1192
Bucket Cylinder....1194
Bucket....1196
Bucket - Ditch Cleaning....1200
Bucket Adjuster....1204
Bucket Linkage - Retention....1206
Bucket Linkage - Bearing and Hinge Assembly....1208
Bucket Linkage - Pin Assemblies....1210
Bucket Sidecutter....1212
Check Valve (Hydraulic Oil Cooler Bypass)....1214
Pilot Control Valve (Implement and Swing)....1217
Steering Valve....1220
Swivel....1223
Swing Motor....1225
Swing Drive....1227
Swing Gear and Bearing....1229
Travel Motor....1233
Brake Control (Service Brakes)....1235
Control Valve (Brake)....1237
Master Cylinder....1239
Solenoid Valve (Transmission Shift and Parking Brake)....1241
Axle (Front) - Disc Brake....1243
Axle (Rear) - Drum Brake....1245
Universal Joints....1247
Wheel Group....1249
Stabilizer Cylinders....1251
Stabilizer....1253
Blade Mounting....1256
Pressure Switch (Air)....1258
SENR6260 - Systems Operation (M312; M315; M318 and M320 Excavators Hydraulic System)....1260
General Information....1263
Main Hydraulic System....1265
Electronic Control System....1281
Pilot Hydraulic System....1282
Hydraulic Filter (Pilot)....1294
Pilot Valve (Pilot Manifold)....1296
Relief Valve (Pilot)....1302
Accumulator (Pilot)....1308
Pilot Valve (Joystick)....1313
Solenoid Valve (Implement Activation)....1318
Solenoid Valve (Relief and Proportional Reducing)....1320
Solenoid Valve (Relief and Proportional Reducing) ....1323
Reducing Valve (Shock)....1326
Pump Hydraulic System....1327
Main Hydraulic Pump....1331
Pump Control (Main Hydraulic)....1335
Main Control Valve....1348
Control Valve (Compensator)....1355
Control Valve (Medium Pressure Function)....1357
Relief Valve (Main)....1359
Relief Valve (Line and Makeup)....1361
Relief Valve (Signal Limiter)....1364
Priority Valve....1370
Heavy Lift Function....1379
Control Valve (Boom Lowering)....1384
Control Valve (VA Boom Lowering)....1393
Control Valve (Stick Lowering)....1400
Cylinders (Boom; Bucket; Stick and VA Boom)....1407
Cylinder (Stabilizer)....1416
Cylinder (Blade)....1418
Cylinder (Single Acting)....1420
Drift Reduction Valve....1422
Travel Hydraulic System....1425
Pilot Valve (Travel)....1433
Travel Motor....1437
Oil Makeup (Travel System)....1450
Swivel....1451
Solenoid Valve (Transmission Shift and Parking Brake)....1458
Axle (Front and Rear)....1465
Axle Oscillation Lock Cylinder....1467
Differentials....1471
Transmission....1472
Transmission Downshift Inhibitor....1482
Solenoid Valve (Creeper Speed)....1488
Control Valve (Oscillating Axle and Operating Brake)....1493
Swing Pump....1495
Pump Control (Swing)....1497
Gear Pump (Charge)....1500
Swing Motor....1502
Solenoid Valve (Swing Brake)....1508
Swing Drive and Brake....1510
Stabilizer and Blade System....1512
Control Valve (Stabilizer and Blade)....1515
Solenoid Valve (Stabilizer and Blade)....1516
Return Hydraulic System....1521
Hydraulic Tank and Filter....1524
Hydraulic Oil Cooler....1527
Steering Hydraulic System....1529
Steering Cylinder....1533
Accumulator (Brake Control Valve)....1535
Service Brake Control Valve....1537
Brake Pedal....1549
Control Valve (Steering)....1552
Gear Pump (Brake and Pilot)....1558
Service Brake (Drum)....1561
Service Brake (Disc)....1563
Service and Parking Brake....1567
Generator Priority Valve....1576
Material Handler Hydraulic System....1582
Graphic Color Codes....1586
SENR6263 - Schematic (M318 Wheeled Excavators Hydraulic System)....1588
Main....1589
Collage....1591
SENR6264 - Disassembly and Assembly (M318 EXCAVATOR MACHINE SYSTEMS)....1621
Introduction....1624
Bucket....1625
Bucket Linkage Group....1628
Bucket Cylinder....1636
Stick Cylinder....1642
Stick....1649
Fore Boom Cylinder....1655
Fore Boom....1668
Boom Cylinders....1680
Stub Boom....1696
Counterweight....1705
Fuel Gauge Assembly....1707
Fuel Tank....1709
Hydraulic Oil Tank....1715
Cooler Bypass Valve....1723
Radiator & Hydraulic Oil Cooler....1727
Dozer Blade....1740
Dozer Blade Linkage....1742
Dozer Blade Cylinders....1748
Stabilizer Pads....1754
Stabilizer Arm Assemblies....1756
Stabilizer Cylinders....1761
Stabilizer Group....1768
Blade Solenoid Valve....1772
Stabilizer Solenoid Valves....1774
Oscillating Axle_Operating Brake Valve....1781
Oscillating Axle Stabilizer Cylinders....1784
Swivel Group....1788
Travel Motor Controller....1796
Travel Brake Valve....1799
Travel Motor....1802
Downshift Inhibitor....1821
Transmission Clutch Accumulator....1832
Transmission Shift_Parking Brake Control Valve....1834
Wheel Brake Valve....1839
Wheel Brake Accumulators....1848
Brake_Pilot Steering_Cooling Pump....1852
Seat Assembly....1874
Cab....1875
Steering Wheel....1880
Steering Valve....1882
Steering Column....1898
Steering Cylinder....1899
Swing Motor....1907
Swing Drive....1924
Boom Drift Reduction Valve....1947
Stick Drift Reduction Valve....1951
Boom Lowering Control Device....1955
Return Oil Manifold....1958
Main Control Valve....1961
Pilot Accumulator....1987
Solenoid Valves (Travel Activation; Implement Activation; Swing Brake; & Creeper Speed)....1989
Steering Flow Control Valve....1997
Pilot Pressure Relief Valve....1999
Low Flow Pressure Relief Valve....2002
Swing Pump Pressure Reducing Valve....2004
Main Pump Pressure Reducing Valve....2007
Swing AEC Pressure Switch....2010
Swing Charge Pump....2012
Swing Pump....2021
Main Hydraulic Pump & Pump Drive Coupling....2051
Main Hydraulic Pump....2058
Pilot Control Valve (Dozer_Stabilizer)....2083
Pilot Control Valve (Stick_Swing)....2090
Pilot Control Valve (Boom_Bucket)....2094
Pilot Control Valves (Stick_Swing & Boom Bucket)....2097
Pilot Control Valve (Travel)....2103
Pilot Control Valve (Fore Boom)....2106
Pilot Control Valves (Travel & Fore Boom)....2109
Governor Actuator....2113
Undercarriage Frame Assembly....2114
Swing Gear & Bearing....2123
SENR6265 - Systems Operation (M318 and M320 Excavators Machine Electronic Control System)....2125
General Information....2126
Engine Starting and Stopping....2130
Braking System....2132
Travel Lock....2134
Travel Activation....2136
Implement Activation....2138
Transmission Speed and Creeper Speed....2139
Parking Brake....2141
Controller Backup....2143
Directional Turn Signal and Hazard Flasher....2144
Engine and Hydraulic Pump Controller....2146
Switches....2150
Sensors....2159
Relays....2163
Solenoid Valves....2166
Governor Actuator Control....2172
Operator Monitor....2176
Related Components....2178
SENR6265 - Testing and Adjusting (M318 and M320 Excavators Machine Electronic Control System)....2181
General Troubleshooting Information....2182
Service Tools....2183
Electrical Components And Connector Locations....2185
Input and Output Status - Check....2188
Initial Troubleshooting Procedure....2191
Troubleshooting Detected Faults....2192
Troubleshooting Undiagnosed Problems....2195
Speed Sensor (Engine) - Adjust....2197
Proportional Reducing Valve - Test....2199
Controller - Replace....2201
Governor Actuator Control - Replace....2203
General Calibration Information....2204
Potentiometer (Engine Speed Dial) - Replace and Calibrate....2205
Governor Actuator - Replace and Calibrate....2207
Controller Parameter Values....2212
System Schematic....2214
Caterpillar M318 and M320 Excavators Repair Service Manual
