Operation and maintenance manual
QSB4.5 and QSB6.7 System Diagrams - Overview
Section D - System Diagrams Page D-1
System Diagrams - Overview
General Information
The following drawings show the flow through the engine systems. Although parts can change between different
applications and installations, the flow remains the same. The systems shown are:
•
Fuel System
•
Lubricating Oil System
•
Coolant System
•
Intake Air System
•
Exhaust System
•
Compressed Air System.
Knowledge of the engine systems can help you in troubleshooting, service, and general maintenance of your engine.










