Cummins QSB 4.5 6.7L diesel engine operation and maintenance manual

Product Information

Table of Contents

Introduction

Engine Identification

1. Engine Serial Number Location
2. Emissions Certification Label

Industrial Features

1. Overview
2. Key Features
3. Technical Specifications

Operating Instructions

1. Before Starting the Engine
   • Pre-Start Inspection
2. Starting the Engine
   • Starting Procedure
   • Cold Weather Starting
3. Stopping the Engine
   • Normal Shutdown
   • Emergency Shutdown
4. Operating Precautions

Maintenance Guidelines

1. Maintenance Schedule
2. Recommended Lubricants and Fluids
3. Maintenance Records

Maintenance Procedures at Daily Interval

1. Visual Inspection
2. Check Fluid Levels
3. Inspect Belts and Hoses

Maintenance Procedures at 250 Hours or 3 Months

1. Engine Oil and Filter Change
2. Inspect Air Cleaner Element
3. Check Coolant Level
4. Inspect Fuel System

Maintenance Procedures at 500 Hours or 6 Months

1. Replace Fuel Filters
2. Check Battery Connections
3. Inspect Exhaust System
4. Check Engine Mounts

Maintenance Procedures at 1000 Hours or 1 Year

1. Replace Air Cleaner Element
2. Inspect Turbocharger
3. Check Valve Clearances
4. Inspect Cooling System

Maintenance Procedures at 2000 Hours or 1 Year

1. Replace Coolant
2. Inspect Alternator and Starter
3. Check Wiring and Electrical Connections
4. Test Engine Performance

Maintenance Procedures at 6000 Hours or 3 Years

1. Overhaul Recommendations
2. Replace Critical Components
3. Detailed Inspection Procedures

Adjustment, Repair, and Replacement

1. Engine Adjustments
   • Valve Adjustment
   • Injector Adjustment
2. Component Repair
   • Turbocharger Repair
   • Fuel System Repair
3. Component Replacement
   • Replacing Belts and Hoses
   • Replacing Sensors

System Diagrams

1. Fuel System Diagram
2. Cooling System Diagram
3. Lubrication System Diagram
4. Electrical System Diagram

Service Literature

1. Service Manuals
2. Technical Bulletins

Component Manufacturers

1. List

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