Operation and maintenance manual

QSB4.5 and QSB6.7 Flow Diagram, Fuel System
Section D - System Diagrams Page D-3
With Electric Lift Pump(s)
1 Fuel inlet - ECM cooling plate
2 ECM cooling plate
3 Lift pump
4 Fuel line (from lift pump to fuel filter)
5 Fuel filter
6 Fuel pump inlet to gear pump
7 EFC actuator
8 Fuel pump
9 High-pressure fuel line (fuel pump to rail)
10 Fuel rail
11 Fuel rail pressure sensor
12 Fuel pressure relief valve
13 High-pressure fuel line (fuel rail to fuel injector)
14 High-pressure connector to fuel injector
15 Fuel injector
16 Injector return line
17 Pressure relief return line
18 Fuel pump return line
19 Fuel return manifold.
05d00889
© Cummins Inc.
© Cummins Inc.
© Cummins Inc.
© Cummins Inc.
© Cummins Inc.