Cat 3508 Diesel Engine Service Manual – PDF DOWNLOAD

Page 3

SAFETY

Improper performance of lubrication or maintenance procedures is dangerous and could result in injury or death. Read and understand the lubrication and maintenance procedures, recommended by Caterpillar, that are outlined in the OPERATION GUIDE and/or OWNER’S MANUAL for this product before performing any lubrication or maintenance. Do not operate this product unless you have read and understood the instructions. Improper operation is dangerous and could result in injury or death. The servicemen or mechanic may be unfamiliar with many of the components and systems of this product. This makes it important to use caution when performing service work. A knowledge of the system and/or components is important before the removal or disassembly of any component.

4.

If an engine must be started to make pressure or speed checks, be sure all guards and shields are installed. To help prevent an accident caused by parts in rotation, work carefully around machinery that has been put into operation.

5.

If an engine has been running and the coolant is hot, loosen the filler cap slowly and let the pressure out of the cooling system, before any caps, plugs or lines are removed or disconnected.

6.

Corrosion inhibitor contains alkali. Avoid contact with eyes. Avoid prolonged or repeated contact with skin. Do not take internally. In case of contact, immediately wash skin with soap and water. For eyes, flush with large amounts of water for at least 15 minutes. CALL PHYSICIAN. KEEP OUT OF REACH OF CHILDREN.

7.

Do not smoke when an inspection of the battery electrolyte level is made. Never disconnect any charging unit circuit or battery circuit cable from the battery when the charging unit is operating. A spark can cause an explosion from the flammable vapor mixture of hydrogen and oxygen that is released from the electrolyte through the battery outlets. Do not let electrolyte solution make contact with skin or eyes. Electrolyte solution is an acid. In case of contact, immediately wash skin with soap and water. For eyes, flush with large amounts of water for at least 15 minutes. CALL PHYSICIAN. KEEP OUT OF REACH OF CHILDREN.

8.

Disconnect battery and discharge any capacitors before starting any repair work. Hang “Do Not Operate” tag in the Operator’s compartment or on the controls.

9.

Do not work on anything that is supported only by lift jacks or a hoist. Always use blocks or proper stands to support the product before performing any service work.

10.

Relieve all pressure in air, oil or water systems before any lines, fittings or related items are disconnected or removed. Be alert for possible pressure when disconnecting any device from a system that utilizes pressure. Do not check for pressure leaks with your hand. High pressure oil or fuel can pierce the skin.

Because of the size of some components, the serviceman or mechanic should check the weights noted in this Manual. Use proper lifting procedures when removing any components. Following is a list of basic precautions that should always be observed. 1.

Read and understand all Warning plates and decals before operating, lubricating or repairing this product.

2.

Make sure the work area around the product is made safe and be aware of hazardous conditions that may exist.

3.

Always wear protective glasses and protective shoes when working. In particular, wear protective glasses when a hammer or sledge is used for pounding to make repairs. Use welders gloves, hood/goggles, apron and other protective clothing appropriate to the welding job being performed. Do not wear loose-fitting or torn clothing. Remove all rings from fingers when working on machinery.

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Articles inside

Spacer Plates

2min
pages 391-392

Cylinder Liners

2min
pages 398-399

Crankshaft Main Bearings

4min
pages 393-395

Rear Gear Group

3min
pages 387-390

Front Balancer Group

1min
pages 385-386

Connecting Rod Bearings

1min
page 384

Bridge Dowels

2min
pages 382-383

Valves

1min
page 381

Cylinder Heads

4min
pages 377-380

Fuel Injectors

3min
pages 369-370

Fuel Injection Control Linkage

6min
pages 371-376

Rocker Shafts and Push Rods

4min
pages 366-368

Valve Covers

1min
page 365

Flywheel Housing

1min
pages 363-364

Front Drive Housing

4min
pages 358-361

Flywheel

1min
page 362

Crankshaft Rear Seal and Wear Sleeve

2min
pages 356-357

Crankshaft Vibration Damper

1min
page 353

Crankshaft Front Seal and Wear Sleeve

2min
pages 354-355

Oil and Water Pump Drive

1min
pages 350-352

Accessory Drive (Front

1min
pages 347-349

Hydramechanical Shutoff Drive

1min
pages 345-346

Governor Drive

3min
pages 328-331

Governor

1min
pages 326-327

Hydramechanical Shutoff Control

12min
pages 332-344

Aftercooler

2min
pages 322-325

Exhaust Manifolds

1min
page 321

Turbochargers

6min
pages 312-320

Oil Cooler

4min
pages 305-311

Oil Sequence Valves

1min
page 304

Oil Filter Housing

5min
pages 293-299

Oil Pan

2min
pages 300-303

Oil Pump

5min
pages 288-292

Fuel Priming Pump, Fuel Transfer Pump

4min
pages 283-287

Fuel Filter Housing

3min
pages 279-282

Water Pump

2min
pages 275-278

Water Temperature Regulators

1min
pages 272-274

Crankcase Breather

1min
pages 270-271

Gauge Panel

6min
pages 259-261

Manual Shutoff

3min
pages 257-258

3500 Industrial Engines

6min
pages 253-256

System Checks

1min
pages 243-244

Wiring Diagrams

9min
pages 247-252

Troubleshooting

4min
pages 239-242

Hydraulic Circuits, Later with an Alarm System

6min
pages 232-238

Hydraulic Circuits (Later

5min
pages 228-231

Shutoff Control Group

6min
pages 199-201

Air Intake Shutoff

5min
pages 206-208

3500 Series Engines

4min
pages 197-198

Electrical Switches

1min
page 210

Auxiliary Controls

2min
pages 192-196

Governor Installation

8min
pages 182-186

Governor Preparation

3min
page 181

Pneumatic Speed Setting Control Troubleshooting

3min
pages 178-179

Air Fuel Ratio Control Troubleshooting

7min
pages 176-177

Pneumatic Mid Speed Control

5min
pages 170-171

Air Fuel Ratio Control

4min
pages 167-168

Pneumatic Speed Control

3min
pages 165-166

Operation of the 3161 Governor

6min
pages 161-163

Governor Types

4min
pages 157-158

Caterpillar, 3161 Governor

2min
pages 155-156

Starting System Air Starting System...................................Deleted

4min
pages 152-154

Vibration Damper

1min
page 149

Flywheel and Flywheel Housing

4min
pages 146-147

Checking Crankshaft Deflection (Bend

1min
page 148

Valve Clearance

3min
pages 137-138

Pressure Cap Test

1min
page 142

Water Temperature Regulator Test

2min
page 144

Clearance Setting

2min
page 136

Bridge Adjustment Crankshaft Positions for Valve

2min
page 135

Air Fuel Ratio Control

1min
page 132

Engine Speed Measurement

2min
page 127

Injector Synchronization

2min
pages 123-124

Fuel Setting Adjustment

2min
page 126

Fuel Setting

2min
page 125

Fuel Timing

1min
page 122

Startup Procedure

1min
page 120

Camshaft Timing

2min
pages 118-119

Fuel Pressure

1min
page 116

Injector Test Sequence

9min
pages 110-115

Air Starting System

4min
pages 86-87

Leak Test for Injector Tester

1min
page 109

Contactor Switch (Water Temperature

4min
page 90

Camshafts

1min
page 85

Air Fuel Ratio Control

1min
pages 73-74

Woodward UG8 Lever Governors

2min
pages 71-72

Fuel Injection Control Linkage

1min
page 67

Fuel Injector

2min
pages 68-70

Fuel System

3min
pages 65-66

Systems Operation, 3500 Industrial Engines

1min
pages 61-62

Flywheel Housing Runout Alternators and Regulators.......................Deleted

11min
pages 53-60

Engine Design

1min
pages 63-64

Flywheel Housing Bore

1min
page 52

Flywheel

1min
page 47

Rear Gear Group

2min
pages 45-46

Upper Front Gear Group (7N4871

1min
page 44

Lower Front Gear Group

2min
pages 42-43

Connecting Rod and Main Bearing Journals

1min
page 38

Crankshaft Wear Sleeves and Seals

1min
page 40

Crankshaft

1min
page 39

Front Balancer Group (3508

1min
page 41

Pistons and Rings

1min
page 36

Water Pump

1min
page 31

Cylinder Block

1min
page 34

Oil Cooler Bypass and Cooling Jet Sequence Valves

1min
page 30

Oil Pump

1min
pages 26-27

Oil Filter Bypass Valve (Earlier

1min
page 28

Engine Design

5min
pages 5-7

Air Intake Shutoff

1min
pages 23-25

Camshafts

3min
pages 12-13

Oil Filter Bypass Valve (Later

1min
page 29

and Taperlock Studs

5min
pages 3-4

Fuel Injection Control Group

3min
page 10
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