Caterpillar D20D 9MG D250D 6NG Articulated Truck Workshop Repair Service Manual PDF - MCATD20D250D.zip

The full factory service and repair guide covering the Caterpillar D20D (Prefix 9MG) and D250D (Prefix 6NG) ARTICULATED TRUCKS, packed with every piece of shop-level detail needed for upkeep, diagnostics, fixing, and rebuilding (Disassembly & Assembly, Testing & Adjusting, Specifications, Systems Operation, Electrical System Schematic, and Troubleshooting, among others).

The workshop service & repair guide for the Caterpillar D20D (Prefix 9MG) and D250D (Prefix 6NG) ARTICULATED TRUCKS contains:

* 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.

SENR8232 - Schematic (Caterpillar D20D & D250D Articulated Trucks Electrical System)

SENR820 - Specifications (ARTICULATED TRUCK POWER TRAIN).pdf

SENR820 - Systems Operations (ARTICULATED TRUCK POWER TRAIN).pdf

SENR820 - Testing and Adjusting (ARTICULATED TRUCK POWER TRAIN).pdf

SENR5583 - Disassembly and Assembly (SUPPLEMENT FOR 3116 ENGINE D20D AND D250D ARTICULATED DUMP T.).pdf

SENR8226 - Disassembly and Assembly (D20D AND D250D ARTICULATED DUMP TRUCKS POWER TRAIN).pdf

SENR8227 - Schematic (D20D AND D250D ARTICULATED TRUCK HYDRAULIC SYSTEM).pdf

SENR8228 - Specifications (D20D AND D250D ARTICULATED TRUCKS STEERING AND BODY HOIST HY.).pdf

SENR8228 - Systems Operation (D20D AND D250D ARTICULATED TRUCKS STEERING AND BODY HOIST HY.).pdf

SENR8228 - Testing and Adjusting (D20D AND D250D ARTICULATED TRUCKS STEERING AND BODY HOIST HY.).pdf

SENR8229 - Specifications (D20D AND D250D ARTICULATED TRUCK SUSPENSION SYSTEMS).pdf

SENR8229 - Systems Operation (D20D AND D250D ARTICULATED TRUCK SUSPENSION SYSTEMS).pdf

SENR8229 - Testing And Adjusting (D20D AND D250D ARTICULATED TRUCK SUSPENSION SYSTEMS).pdf

SENR8230 - Specifications (D20D AND D250D ARTICULATED TRUCK BRAKING SYSTEMS).pdf

SENR8230 - Systems Operation (D20D AND D250D ARTICULATED TRUCK BRAKING SYSTEMS).pdf

SENR8230 - Testing and Adjusting (D20D AND D250D ARTICULATED TRUCK BRAKING SYSTEMS).pdf

SENR8231 - Disassembly and Assembly (D20D & D250D ARTICULATED DUMP TRUCKS MACHINE SYSTEMS).pdf

SENR8232 - Schematic (Caterpillar D20D & D250D Articulated Trucks Electrical System).pdf

Total Pages: 770 pages

File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)

Language: English

TABLE OF CONTENTS

SENR5583 - Disassembly and Assembly (SUPPLEMENT FOR 3116 ENGINE D20D AND D250D ARTICULATED DUMP T.).......3

Air Cleaner SMCS - 1051-010.......5

Air Conditioner Condenser SMCS - 1805-010.......7

Air Conditioning Compressor SMCS - 1802-010.......9

Alternator SMCS - 1405-010.......11

Battery SMCS - 1401-010.......12

Cab SMCS - 7301-009.......14

Conditioner Dryer SMCS - 7322-010.......16

Coolant Tank SMCS - 1392-010.......18

Crankcase Guard SMCS - 1202-010.......19

Damper, Pulley & Crankshaft Front Seal SMCS - 1160-010; 1205-010.......20

Engine Oil Cooler SMCS - 1378-010.......23

Engine Oil Filter Base SMCS - 1318-010; 1318-017.......24

Engine SMCS - 1000-010.......26

Engine Support (Front) SMCS - 1154-010.......32

Engine Support (Rear) SMCS - 1154-010.......33

Fan Drive SMCS - 1359-010; 1359-017.......34

Fan Guard SMCS - 1360-010.......37

Fan SMCS - 1355-010.......38

Flywheel SMCS - 1156-010.......39

Fuel Filter SMCS - 1261-010.......41

Fuel Priming Pump & Primary Fuel Filter SMCS - 1260-010.......42

Fuel Priming Pump SMCS - 1260-010.......43

Governor & Fuel Transfer Pump SMCS - 1286-010.......44

Hood SMCS - 7263-010.......46

Lifting Group (Front) SMCS - 1122-010.......48

Lifting Group (rear) SMCS - 1122-010.......50

Muffler SMCS - 1062-010.......51

Oil Filler SMCS - 1316-010.......53

Precleaner Assembly SMCS - 1055-010.......54

Radiator SMCS - 1353-010.......55

Radiator Support SMCS - 7272-010.......58

Shutoff Solenoid SMCS - 1259-010.......60

Starter SMCS - 1453-010.......62

Starting Aid SMCS - 1456-010.......64

Transmission Oil Cooler SMCS - 1375-010.......65

Turbocharger SMCS - 1052-010; 1052-017.......67

V-Belts SMCS - 1357-010.......71

Water Pump Drive SMCS - 1384-010; 1384-017.......73

Water Pump SMCS - 1361-010; 1361-017.......75

Water Temperature Regulator SMCS - 1355-010.......80

SENR820 - Specifications (ARTICULATED TRUCK POWER TRAIN).......81

Differential Lock Actuator (7U4227).......83

Differential and Bevel Gear Groups (8X7580 and 8X7587).......84

Differential and Bevel Gear Groups (9C2207 and 9C3012).......86

Final Drive and Wheel Group (4C1636).......90

Final Drive and Wheel Group (8X7185).......92

Gearshift Linkage.......95

Hitch Drive Shaft Group (7U3950) and Transfer Gearbox Group (7U6050).......97

Hitch Drive Shaft Group (7U4803).......98

Hitch Drive Shaft Group (7U7435).......99

Hitch Drive Shaft Groups (7U7451 and 7U7320) and Transfer Gearbox Groups (7U7448 and 7U7250).......100

Inter-Axle Differentials (7U4078 and 7U4079).......101

Output Transfer Drive (7U4155 and 7U4289).......102

Output Transfer Drive (7U6711).......105

Output Transfer Drive (7U8775).......107

Planetary Transmission (8P7901 and 6Y4419).......109

Reducing Valve Group (9P3060).......112

Retarder Control Valve (2P5802).......114

Retarder and Torque Converter Group (6Y4911, 9W7710, 8E4093 and 6Y5892).......115

Torque Converter (1T1885).......117

Torque Converter Group (1T1886).......119

Torque Converter Group (6T1881 and 6Y5964).......121

Torque Converter Lock Up Selector Valves (9P1495 and 6Y0620).......123

Torque Converter Outlet Relief Valve (2P3675).......124

Torque Converters (6Y4910, 9W7711, 6T1882, 6Y5965 and 6Y5893).......126

Transmission Charging_Scavenge Pump (1T1810).......128

Transmission Charging_Scavenge Pump (8P8208).......129

Transmission Hydraulic Control Valve Group (9P3058).......131

Transmission Mountings - D20D and D250D.......132

Transmission Mountings - D25D, D30D and D350D.......133

Transmission Mountings - D300D.......135

Transmission Oil Filter (6P4603).......137

Transmission Selector and Pressure Control Valve (9P3059).......139

SENR820 - Systems Operations (ARTICULATED TRUCK POWER TRAIN).......142

SENR820 - Testing and Adjusting (ARTICULATED TRUCK POWER TRAIN).......220

SENR8226 - Disassembly and Assembly (D20D AND D250D ARTICULATED DUMP TRUCKS POWER TRAIN).......243

Axles.......245

Center Axle Housing.......248

Differential & Bevel Gear (CENTER or REAR).......250

Differential & Bevel Gear (FRONT).......269

Drive Shaft Assembly (Transmission Drop Box To Drive Hitch).......270

Drive Shaft, (Mid Bearing To Rear Axle).......272

Drive Shaft, (Transfer Gear Case To Center Axle).......274

Drive Shaft, (Transfer Gear To Mid Bearing).......276

Duo-Cone Seals (Conventional & Inverted).......278

Final Drive Planet Carriers & Ring Gears.......295

Front Axle Housing.......300

Gear Group-Transfer.......305

Inter-Axle Differential.......317

Output Transfer Drive.......330

Rear Axle Housing.......344

Retarder Control Valve.......347

Retarder.......351

Scavenge & Transmission Oil Pump.......356

Tires & Rims.......363

Torque Converter Accessory Drive Gear.......365

Torque Converter Outlet Relief Valve.......369

Torque Converter Pump Drive Gears.......373

Torque Converter Screen.......378

Torque Converter Selector Valve.......380

Torque Converter.......383

Transmission & Output Transfer Drive .......405

Transmission & Output Transfer Drive.......407

Transmission Control Linkage.......414

Transmission Hydraulic Control Valve.......417

Transmission Oil Filter.......428

Transmission Screen.......431

Transmission.......433

Wheels, Bearings & Due-Cone Seals.......471

SENR8227 - Schematic (D20D AND D250D ARTICULATED TRUCK HYDRAULIC SYSTEM).......478

SENR8228 - Specifications (D20D AND D250D ARTICULATED TRUCKS STEERING AND BODY HOIST HY.).......483

Compensator Valves.......484

Hand Metering Unit.......486

Hoist Control Valve.......487

Hoist Cylinder.......488

Hydraulic Pumps.......490

Lock Valve.......495

Steering Control Valve.......496

Steering Cylinder.......497

Tailgate Cylinder.......498

SENR8228 - Systems Operation (D20D AND D250D ARTICULATED TRUCKS STEERING AND BODY HOIST HY.).......499

SENR8228 - Testing and Adjusting (D20D AND D250D ARTICULATED TRUCKS STEERING AND BODY HOIST HY.).......535

SENR8229 - Specifications (D20D AND D250D ARTICULATED TRUCK SUSPENSION SYSTEMS).......549

Accumulator.......550

Front Suspension Cylinder.......552

SENR8229 - Systems Operation (D20D AND D250D ARTICULATED TRUCK SUSPENSION SYSTEMS).......554

SENR8229 - Testing And Adjusting (D20D AND D250D ARTICULATED TRUCK SUSPENSION SYSTEMS).......563

SENR8230 - Specifications (D20D AND D250D ARTICULATED TRUCK BRAKING SYSTEMS).......573

Accumulators.......574

Parking Brake Valve.......575

Parking Brake.......576

Pressure Switch.......578

Pressure Switches.......579

Service Brake Group.......580

Service Brake Valve.......582

SENR8230 - Systems Operation (D20D AND D250D ARTICULATED TRUCK BRAKING SYSTEMS).......584

SENR8230 - Testing and Adjusting (D20D AND D250D ARTICULATED TRUCK BRAKING SYSTEMS).......595

SENR8231 - Disassembly and Assembly (D20D & D250D ARTICULATED DUMP TRUCKS MACHINE SYSTEMS).......610

Accumulator-Brake.......612

Accumulator-Charge & Test Procedure.......614

Accumulator.......618

Anticavitation Valve.......622

Ball Resolver Valve.......624

Battery.......626

Body Group.......627

Body Prop Assembly.......630

Cab Tilt Cylinder.......632

Cab.......633

Duo-Cone Seals (Conventional & Inverted).......639

Frame Lock Links.......656

Front Suspension Cylinder.......658

Fuel Tank.......661

Hand Metering Pump.......664

Hoist Control Valve.......671

Hoist Cylinder.......675

Hydraulic Oil Pump.......678

Hydraulic Tank.......693

Oscillating Truck Hitch.......695

Rear Suspension Equalising Frame.......701

Retarder Control Pressure Reducing Valve.......705

Seat.......706

Steering Control Valve.......707

Steering Cylinder.......711

Steering Double Check Valve.......713

Steering Wheel.......715

Supplemental Steering Pump.......717

Tailgate Cylinder Valve.......732

Tailgate Cylinder.......734

Tailgate.......736

Tractor & Trailer Separation & Connection.......738

Valve-Foot Brake.......742

SENR8232 - Schematic (Caterpillar D20D & D250D Articulated Trucks Electrical System).......743

Collage.......744

Main.......769

Caterpillar D20D (9MG), D250D (6NG) ARTICULATED TRUCKS Repair Service Manuals