Operation and maintenance manual
Flow Diagram, Lubricating Oil System QSB4.5 and QSB6.7
Page D-4 Section D - System Diagrams
Flow Diagram, Lubricating Oil System
Flow Diagram
Lubricating Oil Cooler Flow
1 Lubricating oil pump
2 From lubricating oil pump
3 Pressure regulating valve closed
4 Pressure regulating valve open
5 To lubricating oil cooler
6 To lubricating oil pan
7 Lubricating oil cooler
8 Filter bypass valve
9 Filter bypass valve closed
10 Filter bypass valve open
11 To lubricating oil filter
12 Full-flow lubricating oil filter
13 From lubricating oil filter
14 Main lubricating oil rifle.
07d00073
1
3
2
2
6
5
2
5
9
10
11
14
14
13
14
11
13
8
7
12
4
© Cummins Inc.
© Cummins Inc.
© Cummins Inc.
© Cummins Inc.
© Cummins Inc.










